157 lines
612 KiB
JSON
157 lines
612 KiB
JSON
{"task_id": "circuit7", "mutants": ["module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg q\n);\n\n\talways @(posedge clk)\n\t\tq <= ~a; // No change in functionality, just a comment added.\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg q\n);\n\n\talways @(posedge clk)\n\t\tq <= a; // Changed \"~a\" to \"a\".\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg q\n);\n\n\talways @(posedge clk)\n\t\tq <= ~a | a; // Changed \"~a\" to \"~a | a\", logical OR with itself, effectively making it always 1.\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg q\n);\n\n\talways @(posedge clk)\n\t\tq <= ~a & a; // Changed \"~a\" to \"~a & a\", logical AND with its inverse, effectively making it always 0.\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg q\n);\n\n\talways @(posedge clk)\n\t\tq <= ~a ^ a; // Changed \"~a\" to \"~a ^ a\", XOR with itself, should always be 1.\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg q\n);\n\n\talways @(posedge clk)\n\t\tq <= ~(a & a); // Changed \"~a\" to \"~(a & a)\", AND with itself then invert, same as original but more operations.\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg q\n);\n\n\talways @(negedge clk) // Changed \"posedge\" to \"negedge\".\n\t\tq <= ~a;\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg q\n);\n\n\talways @(posedge clk)\n\t\tif(a) q <= ~a; else q <= a; // Added an if-else condition, but it effectively does the same as \"~a\".\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg q\n);\n\n\talways @(posedge clk)\n\t\tq <= ~a ^ 1; // Changed \"~a\" to \"~a ^ 1\", XOR with 1, effectively inverting the value.\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg q\n);\n\n\talways @(posedge clk)\n\t\tq <= ~a ? 1'b0 : 1'b1; // Changed \"~a\" to a ternary operation, which is essentially an inversion and then selecting based on the inversion, reversed logic.\n\nendmodule\n"]}
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{"task_id": "ece241_2014_q5a", "mutants": ["module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1,C=2;\n\treg [1:0] state;\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tstate <= A;\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? B : A; // Changed C to B in this line\n\t\t\t\tB: state <= x ? B : C;\n\t\t\t\tC: state <= x ? B : C;\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == C);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1,C=2;\n\treg [1:0] state;\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tstate <= A;\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? C : A;\n\t\t\t\tB: state <= x ? A : C; // Changed B to A in this line\n\t\t\t\tC: state <= x ? B : C;\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == C);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1,C=2;\n\treg [1:0] state;\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tstate <= A;\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? C : A;\n\t\t\t\tB: state <= x ? B : C;\n\t\t\t\tC: state <= x ? A : C; // Changed B to A in this line\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == C);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1,C=2;\n\treg [1:0] state; // No change in state definition\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tstate <= B; // Changed initial state to B instead of A\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? C : A;\n\t\t\t\tB: state <= x ? B : C;\n\t\t\t\tC: state <= x ? B : C;\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == C);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1,C=2,D=3; // Added a new state D\n\treg [1:0] state;\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tstate <= A;\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? C : A;\n\t\t\t\tB: state <= x ? B : C;\n\t\t\t\tC: state <= x ? B : C;\n\t\t\t\t// D state is not used, just defined\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == C);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1,C=2;\n\treg [1:0] state;\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tstate <= A;\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? C : B; // Changed A to B in this line\n\t\t\t\tB: state <= x ? B : C;\n\t\t\t\tC: state <= x ? B : C;\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == C);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1,C=3; // Changed C parameter value from 2 to 3\n\treg [1:0] state;\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tstate <= A;\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? C : A;\n\t\t\t\tB: state <= x ? B : C;\n\t\t\t\tC: state <= x ? B : C;\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == C);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1,C=2;\n\treg [1:0] state;\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tstate <= A;\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? C : A;\n\t\t\t\tB: state <= x ? C : B; // Changed C and B positions in this line\n\t\t\t\tC: state <= x ? B : C;\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == B); // Changed condition to state == B\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1,C=2;\n\treg [2:0] state; // Changed state register size from [1:0] to [2:0]\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tstate <= A;\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? C : A;\n\t\t\t\tB: state <= x ? B : C;\n\t\t\t\tC: state <= x ? B : C;\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == C);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1,C=2;\n\treg [1:0] state;\n\talways @(posedge clk) begin // Removed posedge areset from sensitivity list\n\t\tif (areset)\n\t\t\tstate <= A;\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? C : A;\n\t\t\t\tB: state <= x ? B : C;\n\t\t\t\tC: state <= x ? B : C;\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == C);\n\t\nendmodule\n"]}
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{"task_id": "fsm3", "mutants": ["module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? B : A; // Change: None, comment for clarity\n\t\t\tB: next = in ? C : C; // Changed B to C when in=1\n\t\t\tC: next = in ? D : A;\n\t\t\tD: next = in ? B : C;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==D);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? A : B; // Changed B to A for in=1\n\t\t\tB: next = in ? B : C;\n\t\t\tC: next = in ? D : A;\n\t\t\tD: next = in ? B : C;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==D);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? B : A;\n\t\t\tB: next = in ? B : C;\n\t\t\tC: next = in ? D : A;\n\t\t\tD: next = in ? C : B; // Changed B to C when in=1\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==D);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? B : A;\n\t\t\tB: next = in ? B : C;\n\t\t\tC: next = in ? D : A;\n\t\t\tD: next = in ? B : D; // Changed C to D when in=0\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==D);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? B : A;\n\t\t\tB: next = in ? B : C;\n\t\t\tC: next = in ? A : D; // Changed D to A when in=0\n\t\t\tD: next = in ? B : C;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==D);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? C : A; // Changed B to C for in=1\n\t\t\tB: next = in ? B : C;\n\t\t\tC: next = in ? D : A;\n\t\t\tD: next = in ? B : C;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==D);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? B : A;\n\t\t\tB: next = in ? B : A; // Changed C to A when in=0\n\t\t\tC: next = in ? D : A;\n\t\t\tD: next = in ? B : C;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==D);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? B : B; // Changed A to B when in=0\n\t\t\tB: next = in ? B : C;\n\t\t\tC: next = in ? D : A;\n\t\t\tD: next = in ? B : C;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==D);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? B : A;\n\t\t\tB: next = in ? C : B; // Changed C to B when in=0\n\t\t\tC: next = in ? D : A;\n\t\t\tD: next = in ? B : C;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==D);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? D : A; // Changed B to D for in=1\n\t\t\tB: next = in ? B : C;\n\t\t\tC: next = in ? D : A;\n\t\t\tD: next = in ? B : C;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==D);\n\t\nendmodule\n"]}
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{"task_id": "m2014_q4c", "mutants": ["module top_module (\n\tinput clk,\n\tinput d,\n\tinput r,\n\toutput logic q\n);\n\n\talways@(posedge clk) begin\n\t\tif (r)\n\t\t\tq <= 1; // Changed the reset value to 1\n\t\telse\n\t\t\tq <= d;\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput d,\n\tinput r,\n\toutput logic q\n);\n\n\talways@(posedge clk) begin\n\t\tif (r)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= ~d; // Complemented the input d before assignment\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput d,\n\tinput r,\n\toutput logic q\n);\n\n\talways@(negedge clk) begin // Triggered on the negative edge of clk instead of positive\n\t\tif (r)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d;\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput d,\n\tinput r,\n\toutput logic q\n);\n\n\talways@(posedge clk) begin\n\t\tif (!r) // Changed the condition to negated reset\n\t\t\tq <= d;\n\t\telse\n\t\t\tq <= 0;\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput d,\n\tinput r,\n\toutput logic q\n);\n\n\talways@(posedge clk) begin\n\t\tif (r)\n\t\t\tq <= d; // Assign d instead of 0 when reset is active\n\t\telse\n\t\t\tq <= d;\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput d,\n\tinput r,\n\toutput logic q\n);\n\n\talways@(posedge clk) begin\n\t\tif (r)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d;\n\tend\n\tassign q = r ? 0 : q; // Added a continuous assignment conflicting with the always block\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput d,\n\tinput r,\n\toutput logic q\n);\n\n\talways@(posedge clk or posedge r) begin // Added posedge r to the sensitivity list\n\t\tif (r)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d;\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput d,\n\tinput r,\n\toutput logic q\n);\n\n\talways@(posedge clk) begin\n\t\tq <= r ? 1 : d; // Changed inline if condition to set q to 1 on reset\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput d,\n\tinput r,\n\toutput logic q\n);\n\n\talways@(posedge clk) begin\n\t\tif (r)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d & r; // Logical AND operation with reset signal, which will always be 0 when r is active\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput d,\n\tinput r,\n\toutput logic q\n);\n\n\talways@(posedge clk) begin\n\t\tif (r)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d | r; // Logical OR with reset, effectively unchanged behavior but introduces redundancy\n\tend\n\nendmodule\n"]}
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{"task_id": "ece241_2013_q8", "mutants": ["module top_module (\n\tinput clk,\n\tinput aresetn,\n\tinput x,\n\toutput reg z\n);\n\tparameter S=0, S1=1, S10=2;\n\treg[1:0] state, next;\n\t\n\talways@(posedge clk, negedge aresetn)\n\t\tif (!aresetn)\n\t\t\tstate <= S;\n\t\telse\n\t\t\tstate <= next;\n\t\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = x ? S1 : S; // No change\n\t\t\tS1: next = x ? S1 : S10; // No change\n\t\t\tS10: next = x ? S1 : S; // Changed S10 transition on '0' to S instead of S10\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: z = 0;\n\t\t\tS1: z = 0;\n\t\t\tS10: z = x;\n\t\t\tdefault: z = 'x;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput aresetn,\n\tinput x,\n\toutput reg z\n);\n\tparameter S=0, S1=1, S10=2;\n\treg[1:0] state, next;\n\t\n\talways@(posedge clk, negedge aresetn)\n\t\tif (!aresetn)\n\t\t\tstate <= S;\n\t\telse\n\t\t\tstate <= next;\n\t\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = x ? S10 : S; // Changed S transition on '1' to S10 instead of S1\n\t\t\tS1: next = x ? S1 : S10;\n\t\t\tS10: next = x ? S1 : S;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: z = 0;\n\t\t\tS1: z = 0;\n\t\t\tS10: z = x;\n\t\t\tdefault: z = 'x;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput aresetn,\n\tinput x,\n\toutput reg z\n);\n\tparameter S=0, S1=1, S10=2;\n\treg[1:0] state, next;\n\t\n\talways@(posedge clk, negedge aresetn)\n\t\tif (!aresetn)\n\t\t\tstate <= S;\n\t\telse\n\t\t\tstate <= next;\n\t\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = x ? S1 : S;\n\t\t\tS1: next = x ? S10 : S10; // Changed S1 transition on '1' to S10 instead of S1\n\t\t\tS10: next = x ? S1 : S;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: z = 0;\n\t\t\tS1: z = 0;\n\t\t\tS10: z = x;\n\t\t\tdefault: z = 'x;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput aresetn,\n\tinput x,\n\toutput reg z\n);\n\tparameter S=0, S1=1, S10=2;\n\treg[1:0] state, next;\n\t\n\talways@(posedge clk, negedge aresetn)\n\t\tif (!aresetn)\n\t\t\tstate <= S;\n\t\telse\n\t\t\tstate <= next;\n\t\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = x ? S1 : S;\n\t\t\tS1: next = x ? S1 : S10;\n\t\t\tS10: next = x ? S10 : S; // Changed S10 transition on '1' to stay in S10 instead of moving to S1\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: z = 0;\n\t\t\tS1: z = 0;\n\t\t\tS10: z = x;\n\t\t\tdefault: z = 'x;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput aresetn,\n\tinput x,\n\toutput reg z\n);\n\tparameter S=0, S1=1, S10=2;\n\treg[1:0] state, next;\n\t\n\talways@(posedge clk, negedge aresetn)\n\t\tif (!aresetn)\n\t\t\tstate <= S1; // Changed initial state on reset to S1 instead of S\n\t\telse\n\t\t\tstate <= next;\n\t\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = x ? S1 : S;\n\t\t\tS1: next = x ? S1 : S10;\n\t\t\tS10: next = x ? S1 : S;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: z = 0;\n\t\t\tS1: z = 0;\n\t\t\tS10: z = x;\n\t\t\tdefault: z = 'x;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput aresetn,\n\tinput x,\n\toutput reg z\n);\n\tparameter S=0, S1=1, S10=2;\n\treg[1:0] state, next;\n\t\n\talways@(posedge clk, negedge aresetn)\n\t\tif (!aresetn)\n\t\t\tstate <= S;\n\t\telse\n\t\t\tstate <= next;\n\t\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = x ? S1 : S;\n\t\t\tS1: next = x ? S1 : S10;\n\t\t\tS10: next = x ? S1 : S;\n\t\t\tdefault: next = S; // Changed default next state assignment from 'x to S\n\t\tendcase\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: z = 0;\n\t\t\tS1: z = 0;\n\t\t\tS10: z = x;\n\t\t\tdefault: z = 0; // Changed default z assignment from 'x to 0\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput aresetn,\n\tinput x,\n\toutput reg z\n);\n\tparameter S=0, S1=1, S10=2;\n\treg[1:0] state, next;\n\t\n\talways@(posedge clk, negedge aresetn)\n\t\tif (!aresetn)\n\t\t\tstate <= S;\n\t\telse\n\t\t\tstate <= next;\n\t\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = x ? S1 : S;\n\t\t\tS1: next = x ? S1 : S10;\n\t\t\tS10: next = x ? S1 : S;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: z = 1; // Changed output z to 1 in state S\n\t\t\tS1: z = 0;\n\t\t\tS10: z = x;\n\t\t\tdefault: z = 'x;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput aresetn,\n\tinput x,\n\toutput reg z\n);\n\tparameter S=0, S1=1, S10=2;\n\treg[1:0] state, next;\n\t\n\talways@(posedge clk, negedge aresetn)\n\t\tif (!aresetn)\n\t\t\tstate <= S;\n\t\telse\n\t\t\tstate <= next;\n\t\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = x ? S1 : S;\n\t\t\tS1: next = x ? S1 : S10;\n\t\t\tS10: next = x ? S10 : S10; // Made S10 sticky on any input\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: z = 0;\n\t\t\tS1: z = 0;\n\t\t\tS10: z = x;\n\t\t\tdefault: z = 'x;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput aresetn,\n\tinput x,\n\toutput reg z\n);\n\tparameter S=0, S1=1, S10=2;\n\treg[1:0] state, next;\n\t\n\talways@(posedge clk, negedge aresetn)\n\t\tif (!aresetn)\n\t\t\tstate <= S;\n\t\telse\n\t\t\tstate <= next;\n\t\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = x ? S1 : S;\n\t\t\tS1: next = x ? S10 : S10; // Changed S1 transition on '0' to stay in S10\n\t\t\tS10: next = x ? S1 : S;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: z = 0;\n\t\t\tS1: z = 0; // No change\n\t\t\tS10: z = !x; // Inverted output z in state S10\n\t\t\tdefault: z = 'x;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput aresetn,\n\tinput x,\n\toutput reg z\n);\n\tparameter S=0, S1=1, S10=2;\n\treg[1:0] state, next;\n\t\n\talways@(posedge clk, negedge aresetn)\n\t\tif (!aresetn)\n\t\t\tstate <= S;\n\t\telse\n\t\t\tstate <= next;\n\t\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = x ? S1 : S;\n\t\t\tS1: next = x ? S1 : S10;\n\t\t\tS10: next = x ? S : S; // Changed S10 transition on '1' to S instead of S1\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: z = 0;\n\t\t\tS1: z = 0;\n\t\t\tS10: z = x;\n\t\t\tdefault: z = 'x;\n\t\tendcase\n\tend\n\t\nendmodule\n"]}
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{"task_id": "m2014_q6", "mutants": ["module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4, F=5;\n\treg [2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tstate <= A; // No change here\n\t\telse \n\t\t\tstate <= next; // No change here\n\t\t\t\n\t\t\t\n\talways_comb begin\n\t\tcase(state)\n\t\t\tA: next = w ? B : B; // Changed A to B when w is 1\n\t\t\tB: next = w ? D : C;\n\t\t\tC: next = w ? D : E;\n\t\t\tD: next = w ? A : F;\n\t\t\tE: next = w ? D : E;\n\t\t\tF: next = w ? D : C;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E || state == F);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4, F=5;\n\treg [2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tstate <= A; // No change here\n\t\telse \n\t\t\tstate <= next; // No change here\n\t\t\t\n\t\t\t\n\talways_comb begin\n\t\tcase(state)\n\t\t\tA: next = w ? A : B;\n\t\t\tB: next = w ? D : C;\n\t\t\tC: next = w ? D : E;\n\t\t\tD: next = w ? F : F; // Changed A to F when w is 1\n\t\t\tE: next = w ? D : E;\n\t\t\tF: next = w ? D : C;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E || state == F);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4, F=5;\n\treg [2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tstate <= B; // Changed initial state to B on reset\n\t\telse \n\t\t\tstate <= next;\n\t\t\t\n\t\t\t\n\talways_comb begin\n\t\tcase(state)\n\t\t\tA: next = w ? A : B;\n\t\t\tB: next = w ? D : C;\n\t\t\tC: next = w ? D : E;\n\t\t\tD: next = w ? A : F;\n\t\t\tE: next = w ? D : E;\n\t\t\tF: next = w ? D : C;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E || state == F);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4, F=5;\n\treg [2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tstate <= A; // No change here\n\t\telse \n\t\t\tstate <= next; // No change here\n\t\t\t\n\t\t\t\n\talways_comb begin\n\t\tcase(state)\n\t\t\tA: next = w ? A : B;\n\t\t\tB: next = w ? C : C; // Changed D to C when w is 1\n\t\t\tC: next = w ? D : E;\n\t\t\tD: next = w ? A : F;\n\t\t\tE: next = w ? D : E;\n\t\t\tF: next = w ? D : C;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E || state == F);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4, F=5;\n\treg [2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tstate <= A; // No change here\n\t\telse \n\t\t\tstate <= next; // No change here\n\t\t\t\n\t\t\t\n\talways_comb begin\n\t\tcase(state)\n\t\t\tA: next = w ? A : B;\n\t\t\tB: next = w ? D : C;\n\t\t\tC: next = w ? E : E; // Changed D to E when w is 1\n\t\t\tD: next = w ? A : F;\n\t\t\tE: next = w ? D : E;\n\t\t\tF: next = w ? D : C;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E || state == F);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4, F=5;\n\treg [2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tstate <= A;\n\t\telse \n\t\t\tstate <= next;\n\t\t\t\n\t\t\t\n\talways_comb begin\n\t\tcase(state)\n\t\t\tA: next = w ? A : B;\n\t\t\tB: next = w ? D : C;\n\t\t\tC: next = w ? D : E;\n\t\t\tD: next = w ? A : F;\n\t\t\tE: next = w ? E : E; // Mutated self-loop condition for E\n\t\t\tF: next = w ? D : C;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == F || state == E); // No change here\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4, F=5;\n\treg [2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tstate <= A; // No change here\n\t\telse \n\t\t\tstate <= next; // No change here\n\t\t\t\n\t\t\t\n\talways_comb begin\n\t\tcase(state)\n\t\t\tA: next = w ? A : B;\n\t\t\tB: next = w ? D : C;\n\t\t\tC: next = w ? D : E;\n\t\t\tD: next = w ? F : F; // Mutated to go to F on both conditions\n\t\t\tE: next = w ? D : E;\n\t\t\tF: next = w ? D : C;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E || state == F);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4, F=5;\n\treg [2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tstate <= A;\n\t\telse \n\t\t\tstate <= next;\n\t\t\t\n\t\t\t\n\talways_comb begin\n\t\tcase(state)\n\t\t\tA: next = w ? B : B; // Mutated A's transition on w=1 to B\n\t\t\tB: next = w ? D : C;\n\t\t\tC: next = w ? D : E;\n\t\t\tD: next = w ? A : F;\n\t\t\tE: next = w ? D : E;\n\t\t\tF: next = w ? D : C;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E || state == F);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4, F=5;\n\treg [2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tstate <= A;\n\t\telse \n\t\t\tstate <= next;\n\t\t\t\n\t\t\t\n\talways_comb begin\n\t\tcase(state)\n\t\t\tA: next = w ? A : B;\n\t\t\tB: next = w ? C : C; // Mutated next state on w=1 to C\n\t\t\tC: next = w ? D : E;\n\t\t\tD: next = w ? A : F;\n\t\t\tE: next = w ? D : E;\n\t\t\tF: next = w ? D : C;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E || state == F);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4, F=5;\n\treg [2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tstate <= A; // No change here\n\t\telse \n\t\t\tstate <= next; // No change here\n\t\t\t\n\t\t\t\n\talways_comb begin\n\t\tcase(state)\n\t\t\tA: next = w ? B : A; // Mutated A's transition on w=0 to A\n\t\t\tB: next = w ? D : C;\n\t\t\tC: next = w ? D : E;\n\t\t\tD: next = w ? A : F;\n\t\t\tE: next = w ? D : E;\n\t\t\tF: next = w ? D : C;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E || state == F);\n\nendmodule\n"]}
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{"task_id": "fsm_ps2data", "mutants": ["module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput [23:0] out_bytes,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3];\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = in3 ? BYTE2 : BYTE1;\n\t\t\tBYTE2: next = BYTE3;\n\t\t\tBYTE3: next = DONE;\n\t\t\t// Modification: Change next state after DONE from BYTE2 to BYTE3\n\t\t\tDONE: next = in3 ? BYTE3 : BYTE1; // Changed BYTE2 to BYTE3\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\n\treg [23:0] out_bytes_r;\n\talways @(posedge clk)\n\t\tout_bytes_r <= {out_bytes_r[15:0], in};\n\t\n\tassign out_bytes = done ? out_bytes_r : 'x;\t\t\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput [23:0] out_bytes,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3];\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = in3 ? BYTE2 : BYTE1;\n\t\t\tBYTE2: next = BYTE3;\n\t\t\t// Modification: Delay transition from BYTE3 to DONE\n\t\t\tBYTE3: next = in3 ? BYTE3 : DONE; // Changed next condition for BYTE3\n\t\t\tDONE: next = in3 ? BYTE2 : BYTE1;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\n\treg [23:0] out_bytes_r;\n\talways @(posedge clk)\n\t\tout_bytes_r <= {out_bytes_r[15:0], in};\n\t\n\tassign out_bytes = done ? out_bytes_r : 'x;\t\t\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput [23:0] out_bytes,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3];\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = in3 ? BYTE2 : BYTE1;\n\t\t\tBYTE2: next = BYTE3;\n\t\t\tBYTE3: next = DONE;\n\t\t\tDONE: next = in3 ? BYTE2 : BYTE1;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\n\treg [23:0] out_bytes_r;\n\talways @(posedge clk)\n\t// Modification: Change how out_bytes_r is assigned\n\t\tout_bytes_r <= {out_bytes_r[7:0], in}; // Changed shift width\n\t\n\tassign out_bytes = done ? out_bytes_r : 'x;\t\t\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput [23:0] out_bytes,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3];\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = in3 ? BYTE2 : BYTE1;\n\t\t\tBYTE2: next = BYTE3;\n\t\t\tBYTE3: next = DONE;\n\t\t\tDONE: next = in3 ? BYTE2 : BYTE1;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\n\treg [23:0] out_bytes_r;\n\talways @(posedge clk)\n\t\tout_bytes_r <= {out_bytes_r[15:0], in};\n\t\n\t// Modification: Change condition for valid out_bytes output\n\tassign out_bytes = (state!=BYTE1) ? out_bytes_r : 'x; // Changed condition for output validity\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput [23:0] out_bytes,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3];\n \n always_comb begin\n\t\tcase (state)\n\t\t\t// Modification: Change initial state transition condition\n\t\t\tBYTE1: next = in3 ? BYTE1 : BYTE2; // Changed next state logic for BYTE1\n\t\t\tBYTE2: next = BYTE3;\n\t\t\tBYTE3: next = DONE;\n\t\t\tDONE: next = in3 ? BYTE2 : BYTE1;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\n\treg [23:0] out_bytes_r;\n\talways @(posedge clk)\n\t\tout_bytes_r <= {out_bytes_r[15:0], in};\n\t\n\tassign out_bytes = done ? out_bytes_r : 'x;\t\t\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput [23:0] out_bytes,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3];\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = in3 ? BYTE2 : BYTE1;\n\t\t\tBYTE2: next = BYTE3;\n\t\t\tBYTE3: next = DONE;\n\t\t\tDONE: next = in3 ? BYTE2 : BYTE1;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\n\treg [23:0] out_bytes_r;\n\talways @(posedge clk)\n\t// Modification: Change assignment operation for out_bytes_r\n\t\tout_bytes_r <= {in, out_bytes_r[23:8]}; // Changed data concatenation order\n\t\n\tassign out_bytes = done ? out_bytes_r : 'x;\t\t\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput [23:0] out_bytes,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3];\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = in3 ? BYTE2 : BYTE1;\n\t\t\tBYTE2: next = BYTE3;\n\t\t\tBYTE3: next = DONE;\n\t\t\t// Modification: Change state transition logic for DONE\n\t\t\tDONE: next = in3 ? BYTE1 : BYTE2; // Swapped conditions for BYTE1 and BYTE2\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\n\treg [23:0] out_bytes_r;\n\talways @(posedge clk)\n\t\tout_bytes_r <= {out_bytes_r[15:0], in};\n\t\n\tassign out_bytes = done ? out_bytes_r : 'x;\t\t\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput [23:0] out_bytes,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3];\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = in3 ? BYTE2 : BYTE1;\n\t\t\tBYTE2: next = BYTE3;\n\t\t\tBYTE3: next = DONE;\n\t\t\tDONE: next = in3 ? BYTE2 : BYTE1;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\n\treg [23:0] out_bytes_r;\n\talways @(posedge clk)\n\t\tout_bytes_r <= {out_bytes_r[15:0], in};\n\t\n\t// Modification: Explicitly set out_bytes to 24'hffffff on reset\n\tassign out_bytes = reset ? 24'hffffff : (done ? out_bytes_r : 'x); // Added reset condition\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput [23:0] out_bytes,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3];\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = in3 ? BYTE2 : BYTE1;\n\t\t\t// Modification: Remove explicit transition from BYTE2 to BYTE3\n\t\t\tBYTE2: next = in3 ? BYTE3 : BYTE2; // Added condition for BYTE2\n\t\t\tBYTE3: next = DONE;\n\t\t\tDONE: next = in3 ? BYTE2 : BYTE1;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\n\treg [23:0] out_bytes_r;\n\talways @(posedge clk)\n\t\tout_bytes_r <= {out_bytes_r[15:0], in};\n\t\n\tassign out_bytes = done ? out_bytes_r : 'x;\t\t\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput [23:0] out_bytes,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3];\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = in3 ? BYTE2 : BYTE1;\n\t\t\tBYTE2: next = BYTE3;\n\t\t\tBYTE3: next = DONE;\n\t\t\tDONE: next = in3 ? BYTE2 : BYTE1;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\n\treg [23:0] out_bytes_r;\n\talways @(posedge clk)\n\t// Modification: Initialize out_bytes_r with a non-zero value on reset\n\t\tif (reset) out_bytes_r <= 24'hA5A5A5; // Added non-zero initialization\n\t\telse out_bytes_r <= {out_bytes_r[15:0], in};\n\t\n\tassign out_bytes = done ? out_bytes_r : 'x;\t\t\n\t\nendmodule\n"]}
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{"task_id": "ece241_2014_q4", "mutants": ["module top_module (\n\tinput clk,\n\tinput x,\n\toutput z\n);\n\t\n\treg [2:0] s = 0;\n\t\n\talways @(posedge clk) begin\n\t\ts <= { s[2] ^ x, ~s[1] & x, ~s[0] & x }; // Changed OR to AND in the last operation\t\t\n\tend\n\t\n\tassign z = ~|s;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput x,\n\toutput z\n);\n\t\n\treg [2:0] s = 0;\n\t\n\talways @(posedge clk) begin\n\t\ts <= { s[2] ^ ~x, ~s[1] & x, ~s[0] | x }; // Complemented the x in XOR operation\t\t\n\tend\n\t\n\tassign z = ~|s;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput x,\n\toutput z\n);\n\t\n\treg [2:0] s = 0;\n\t\n\talways @(posedge clk) begin\n\t\ts <= { s[2] ^ x, s[1] & x, ~s[0] | x }; // Removed complement from the second operation's ~s[1]\t\t\n\tend\n\t\n\tassign z = ~|s;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput x,\n\toutput z\n);\n\t\n\treg [2:0] s = 0;\n\t\n\talways @(posedge clk) begin\n\t\ts <= { s[2] | x, ~s[1] & x, ~s[0] | x }; // Changed XOR to OR in the first operation\t\t\n\tend\n\t\n\tassign z = ~|s;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput x,\n\toutput z\n);\n\t\n\treg [2:0] s = 0;\n\t\n\talways @(posedge clk) begin\n\t\ts <= { s[2] ^ x, ~s[1] & x, s[0] | x }; // Removed complement from the third operation's ~s[0]\t\t\n\tend\n\t\n\tassign z = ~|s;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput x,\n\toutput z\n);\n\t\n\treg [2:0] s = 0;\n\t\n\talways @(posedge clk) begin\n\t\ts <= { s[2] ^ x, ~s[1] | x, ~s[0] | x }; // Changed AND to OR in the second operation\t\t\n\tend\n\t\n\tassign z = ~|s;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput x,\n\toutput z\n);\n\t\n\treg [2:0] s = 0; // No change here, example for unchanged line\n\t\n\talways @(posedge clk) begin\n\t\ts <= { s[2] ^ x, ~s[1] & x, ~s[0] | x }; // No actual change, demonstrating an untouched version as a control\t\t\n\tend\n\t\n\tassign z = ~&s; // Changed OR reduction to AND reduction in the assign statement for z\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput x,\n\toutput z\n);\n\t\n\treg [2:0] s = 0;\n\t\n\talways @(posedge clk) begin\n\t\ts[2] <= s[2] ^ x; // Separated the assignment to individual bits\n\t\ts[1] <= ~s[1] & x; // and changed the structure of always block\n\t\ts[0] <= ~s[0] | x;\t\t\n\tend\n\t\n\tassign z = ~|s;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput x,\n\toutput z\n);\n\t\n\treg [2:0] s = 1; // Changed initial value of s to 1\n\t\n\talways @(posedge clk) begin\n\t\ts <= { s[2] ^ x, ~s[1] & x, ~s[0] | x };\t\t\n\tend\n\t\n\tassign z = ~|s;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput x,\n\toutput z\n);\n\t\n\treg [2:1] s = 0; // Changed reg vector width to [2:1] and adjusted the always block accordingly\n\treg s0 = 0; // Created separate reg for s[0]\n\t\n\talways @(posedge clk) begin\n\t\ts <= { s[2] ^ x, ~s0 & x };\n\t\ts0 <= ~s0 | x; // Separately handling the third operation due to vector width change\t\t\n\tend\n\t\n\tassign z = ~|(s, s0);\n\t\nendmodule\n"]}
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{"task_id": "rule110", "mutants": ["module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\tq <= \n\t\t\t~((q[$bits(q)-1:1] & q[$bits(q)-1:0] & {q[$bits(q)-2:0], 1'b1}) | // Changed 1'b0 to 1'b1 at the end of this line\n\t\t\t(~q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{q[$bits(q)-2:0], 1'b0}) | \n\t\t\t(q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{q[$bits(q)-2:0], 1'b0}) )\n\t\t\t;\n\t\tend\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\tq <= \n\t\t\t((q[$bits(q)-1:1] & q[$bits(q)-1:0] & {q[$bits(q)-2:0], 1'b0}) | // Removed the NOT operation at the beginning\n\t\t\t(~q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{q[$bits(q)-2:0], 1'b0}) | \n\t\t\t(q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{q[$bits(q)-2:0], 1'b0}) )\n\t\t\t;\n\t\tend\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\tq <= \n\t\t\t~((q[$bits(q)-1:1] & q[$bits(q)-1:0] & {q[$bits(q)-2:0], 1'b0}) |\n\t\t\t(q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{q[$bits(q)-2:0], 1'b0}) | // Removed one condition in this line\n\t\t\t(q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{q[$bits(q)-2:0], 1'b0}) )\n\t\t\t;\n\t\tend\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\tq <= \n\t\t\t~((q[$bits(q)-1:1] & q[$bits(q)-1:0] & {q[$bits(q)-2:0], 1'b0}) |\n\t\t\t(~q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & {q[$bits(q)-2:0], 1'b0}) | // Removed NOT operation in the last term\n\t\t\t(q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{q[$bits(q)-2:0], 1'b0}) )\n\t\t\t;\n\t\tend\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\tq <= \n\t\t\t~((q[$bits(q)-1:1] & q[$bits(q)-1:0] & {q[$bits(q)-2:0], 1'b0}) |\n\t\t\t(~q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{q[$bits(q)-2:0], 1'b1}) | // Changed 1'b0 to 1'b1 in the last term \n\t\t\t(q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{q[$bits(q)-2:0], 1'b0}) )\n\t\t\t;\n\t\tend\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\tq <= \n\t\t\t~((q[$bits(q)-1:1] | q[$bits(q)-1:0] & {q[$bits(q)-2:0], 1'b0}) | // Changed & to | for the first term\n\t\t\t(~q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{q[$bits(q)-2:0], 1'b0}) | \n\t\t\t(q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{q[$bits(q)-2:0], 1'b0}) )\n\t\t\t;\n\t\tend\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\tq <= \n\t\t\t~((q[$bits(q)-1:1] & q[$bits(q)-0] & {q[$bits(q)-2:0], 1'b0}) | // Changed q[$bits(q)-1:0] to q[$bits(q)-0]\n\t\t\t(~q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{q[$bits(q)-2:0], 1'b0}) | \n\t\t\t(q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{q[$bits(q)-2:0], 1'b0}) )\n\t\t\t;\n\t\tend\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\tq <= \n\t\t\t~((q[$bits(q)-1:1] & q[$bits(q)-1:0] & {q[$bits(q)-3:0], 1'b0}) | // Changed q[$bits(q)-2:0] to q[$bits(q)-3:0]\n\t\t\t(~q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{q[$bits(q)-2:0], 1'b0}) | \n\t\t\t(q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{q[$bits(q)-2:0], 1'b0}) )\n\t\t\t;\n\t\tend\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\tq <= \n\t\t\t~((q[$bits(q)-1:1] & q[$bits(q)-1:0] & {q[$bits(q)-2:0], 1'b0}) |\n\t\t\t(~q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{2{q[$bits(q)-2:0], 1'b0}}) | // Doubled the last term with 2{...}\n\t\t\t(q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{q[$bits(q)-2:0], 1'b0}) )\n\t\t\t;\n\t\tend\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\tq <= \n\t\t\t~((q[$bits(q)-1:1] & q[$bits(q)-1:0] & {q[$bits(q)-1:0], 1'b0}) | // Changed {q[$bits(q)-2:0], 1'b0} to {q[$bits(q)-1:0], 1'b0}\n\t\t\t(~q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{q[$bits(q)-2:0], 1'b0}) | \n\t\t\t(q[$bits(q)-1:1] & ~q[$bits(q)-1:0] & ~{q[$bits(q)-2:0], 1'b0}) )\n\t\t\t;\n\t\tend\n\tend\nendmodule\n"]}
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{"task_id": "mt2015_muxdff", "mutants": ["module top_module(\n\tinput clk,\n\tinput L,\n\tinput q_in,\n\tinput r_in,\n\toutput reg Q);\n\n\tinitial Q=1; // Changed the initial value of Q to 1\n\talways @(posedge clk)\n\t\tQ <= L ? r_in : q_in;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput L,\n\tinput q_in,\n\tinput r_in,\n\toutput reg Q);\n\n\tinitial Q=0;\n\talways @(negedge clk) // Changed to negedge of clk\n\t\tQ <= L ? r_in : q_in;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput L,\n\tinput q_in,\n\tinput r_in,\n\toutput reg Q);\n\n\tinitial Q=0;\n\talways @(posedge clk)\n\t\tQ <= L ? r_in : !q_in; // Changed q_in to its negation\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput L,\n\tinput q_in,\n\tinput r_in,\n\toutput reg Q);\n\n\tinitial Q=0;\n\talways @(posedge clk)\n\t\tQ <= !L ? r_in : q_in; // Inverted the condition L\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput L,\n\tinput q_in,\n\tinput r_in,\n\toutput reg Q);\n\n\t// Removed initial Q=0; entirely\n\talways @(posedge clk)\n\t\tQ <= L ? r_in : q_in;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput L,\n\tinput q_in,\n\tinput r_in,\n\toutput reg Q);\n\n\tinitial Q=0;\n\talways @(posedge clk)\n\t\tQ <= L ? !r_in : q_in; // Changed r_in to its negation\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput L,\n\tinput q_in,\n\tinput r_in,\n\toutput reg Q);\n\n\tinitial Q=0;\n\talways @(posedge clk) begin\n\t\tif(L) Q <= r_in; else Q <= q_in; // Changed ternary operator to if-else statement\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput L,\n\tinput q_in,\n\tinput r_in,\n\toutput reg Q);\n\n\tinitial Q=0;\n\talways @(posedge clk)\n\t\tQ <= L && q_in; // Changed the operation inside always block\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput L,\n\tinput q_in,\n\tinput r_in,\n\toutput reg Q);\n\n\tinitial Q=0;\n\talways @(posedge clk)\n\t\tQ <= L ? q_in : r_in; // Swapped the operands of the ternary operator\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput L,\n\tinput q_in,\n\tinput r_in,\n\toutput reg Q);\n\n\tinitial Q=0;\n\talways @(posedge clk)\n\t\tQ <= L ? r_in : {q_in}; // Enclosed q_in in braces, making it a single bit concatenation\n\t\nendmodule\n"]}
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{"task_id": "edgecapture", "mutants": ["module top_module(\n\tinput clk,\n\tinput reset,\n\tinput [31:0] in,\n\toutput reg [31:0] out);\n\t\n\treg [31:0] d_last;\t\n\t\n\talways @(posedge clk) begin\n\t\td_last <= in;\n\t\tif (reset)\n\t\t\tout <= '0; // Original: out <= '0;\n\t\telse\n\t\t\tout <= out & (~in & d_last); // Change: | to & to create mutant\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput [31:0] in,\n\toutput reg [31:0] out);\n\t\n\treg [31:0] d_last;\n\t\n\talways @(posedge clk) begin\n\t\td_last <= in;\n\t\tif (reset)\n\t\t\tout <= '1; // Change: '0 to '1 to create mutant\n\t\telse\n\t\t\tout <= out | (~in & d_last);\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput [31:0] in,\n\toutput reg [31:0] out);\n\t\n\treg [31:0] d_last;\t\n\t\n\talways @(posedge clk) begin\n\t\td_last <= ~in; // Change: d_last <= in; to d_last <= ~in; to create mutant\n\t\tif (reset)\n\t\t\tout <= '0;\n\t\telse\n\t\t\tout <= out | (~in & d_last);\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput [31:0] in,\n\toutput reg [31:0] out);\n\t\n\treg [31:0] d_last;\t\n\t\n\talways @(posedge clk) begin\n\t\td_last <= {in[30:0], in[31]}; // Change: rotating bits in d_last assignment\n\t\tif (reset)\n\t\t\tout <= '0;\n\t\telse\n\t\t\tout <= out | (~in & d_last);\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput [31:0] in,\n\toutput reg [31:0] out);\n\t\n\treg [31:0] d_last;\t\n\t\n\talways @(posedge clk) begin\n\t\td_last <= in;\n\t\tif (reset)\n\t\t\tout <= '0;\n\t\telse\n\t\t\tout <= out | (~in & {d_last[30:0], d_last[31]}); // Change: bit rotation in (~in & d_last)\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput [31:0] in,\n\toutput reg [31:0] out);\n\t\n\treg [31:0] d_last;\n\n\talways @(posedge clk) begin\n\t\tif (reset) // Moved if reset condition outside d_last assignment\n\t\t\td_last <= '0; // Change: Assigning '0 to d_last on reset\n\t\telse\n\t\t\td_last <= in;\n\t\tif (reset)\n\t\t\tout <= '0;\n\t\telse\n\t\t\tout <= out | (~in & d_last);\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput [31:0] in,\n\toutput reg [31:0] out);\n\t\n\treg [31:0] d_last;\t\n\t\n\talways @(posedge clk) begin\n\t\td_last <= in;\n\t\tif (reset)\n\t\t\tout <= '0;\n\t\telse\n\t\t\tout <= out ^ (~in & d_last); // Change: | to ^ for XOR mutant\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput [31:0] in,\n\toutput reg [31:0] out);\n\t\n\treg [31:0] d_last;\t\n\t\n\talways @(posedge clk) begin\n\t\td_last <= in;\n\t\tif (!reset) // Change: if (reset) to if (!reset) for inverse reset logic\n\t\t\tout <= '0;\n\t\telse\n\t\t\tout <= out | (~in & d_last);\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput [31:0] in,\n\toutput reg [31:0] out);\n\t\n\treg [31:0] d_last;\t\n\t\n\talways @(posedge clk) begin\n\t\td_last <= {d_last[0], d_last[31:1]}; // Change: Bit shuffle for d_last\n\t\tif (reset)\n\t\t\tout <= '0;\n\t\telse\n\t\t\tout <= out | (~in & d_last);\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput [31:0] in,\n\toutput reg [31:0] out);\n\t\n\treg [31:0] d_last;\t\n\t\n\talways @(posedge clk) begin\n\t\td_last <= in;\n\t\tif (reset)\n\t\t\tout <= {out[30:0], out[31]}; // Change: Bit rotation in out assignment on reset\n\t\telse\n\t\t\tout <= out | (~in & d_last);\n\tend\n\t\nendmodule\n"]}
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{"task_id": "dff8", "mutants": ["module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\toutput reg [7:0] q);\n\t\n\tinitial\n\t\tq = 8'h0;\n\t\t\n\talways @(posedge clk)\n\t\tq <= d ^ 8'hFF; // Change: XOR operation with 0xFF to invert bits.\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\toutput reg [7:0] q);\n\t\n\tinitial\n\t\tq = 8'h1; // Change: Initial value set to 1.\n\t\t\n\talways @(posedge clk)\n\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\toutput reg [7:0] q);\n\t\n\tinitial\n\t\tq = 8'h0;\n\t\t\n\talways @(posedge clk)\n\t\tq <= {d[6:0], d[7]}; // Change: Rotate right operation.\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\toutput reg [7:0] q);\n\t\n\tinitial\n\t\tq = 8'h0;\n\t\t\n\talways @(posedge clk)\n\t\tq[7:0] <= {d[0], d[7:1]}; // Change: Rotate left operation.\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\toutput reg [7:0] q);\n\t\n\tinitial\n\t\tq = 8'h0;\n\t\t\n\talways @(posedge clk)\n\t\tq[7] <= d[7]; // Change: Only the MSB is assigned.\n\t\talways @(posedge clk)\n\t\t\tq[6:0] <= d[6:0];\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\toutput reg [7:0] q);\n\t\n\tinitial\n\t\tq = 8'h0;\n\t\t\n\talways @(negedge clk) // Change: Triggered by the negative edge of clk.\n\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\toutput reg [7:0] q);\n\t\n\tinitial\n\t\tq = 8'h0;\n\t\t\n\talways @(posedge clk)\n\t\tq <= d & 8'hFF; // Change: AND operation with 0xFF, effectively no change but added operation.\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\toutput reg [7:0] q);\n\t\n\tinitial\n\t\tq = 8'h0;\n\t\t\n\talways @(posedge clk)\n\t\tq <= d | 8'h00; // Change: OR operation with 0x00, effectively no change but added operation.\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\toutput reg [7:0] q);\n\t\n\tinitial\n\t\tq = 8'h0;\n\t\t\n\talways @(posedge clk)\n\t\tq[0] <= d[0]; // Change: Only the LSB is assigned.\n\t\talways @(posedge clk)\n\t\t\tq[7:1] <= d[7:1];\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\toutput reg [7:0] q);\n\t\n\tinitial\n\t\tq = 8'h55; // Change: Initial value set to 0x55.\n\t\t\n\talways @(posedge clk)\n\t\tq <= d;\n\t\nendmodule\n"]}
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{"task_id": "counter_2bc", "mutants": ["module top_module(\n input clk,\n input areset,\n input train_valid,\n input train_taken,\n output logic [1:0] state\n);\n always @(posedge clk, posedge areset) begin\n if (areset)\n state <= 2; // Changed reset value to 2 ('2'b10) instead of 1 ('2'b01)\n else if (train_valid) begin\n if(state < 3 && train_taken)\n state <= state + 1;\n else if(state > 0 && !train_taken)\n state <= state - 1;\n end\n end\nendmodule\n", "module top_module(\n input clk,\n input areset,\n input train_valid,\n input train_taken,\n output logic [1:0] state\n);\n always @(posedge clk, posedge areset) begin\n if (areset)\n state <= 1;\n else if (train_valid) begin\n if(state <= 3 && train_taken) // Changed '<' to '<=' which actually does not affect functionality due to saturation limit but is a logical change.\n state <= state + 1;\n else if(state > 0 && !train_taken)\n state <= state - 1;\n end\n end\nendmodule\n", "module top_module(\n input clk,\n input areset,\n input train_valid,\n input train_taken,\n output logic [1:0] state\n);\n always @(posedge clk, posedge areset) begin\n if (areset)\n state <= 1;\n else if (train_valid) begin\n if(state < 3 && train_taken)\n state <= state + 1;\n else if(state >= 0 && !train_taken) // Changed '>' to '>=' which does not logically change behavior but is incorrect in decrementing condition.\n state <= state - 1;\n end\n end\nendmodule\n", "module top_module(\n input clk,\n input areset,\n input train_valid,\n input train_taken,\n output logic [1:0] state\n);\n always @(posedge clk, posedge areset) begin\n if (areset)\n state <= 0; // Changed reset value to 0 ('2'b00)\n else if (train_valid) begin\n if(state < 3 && train_taken)\n state <= state + 1;\n else if(state > 0 && !train_taken)\n state <= state - 1;\n end\n end\nendmodule\n", "module top_module(\n input clk,\n input areset,\n input train_valid,\n input train_taken,\n output logic [1:0] state\n);\n always @(posedge clk, posedge areset) begin\n if (areset)\n state <= 1;\n else if (train_valid) begin\n if(state < 2 && train_taken) // Modified the increment condition to saturate at 2 instead of 3\n state <= state + 1;\n else if(state > 0 && !train_taken)\n state <= state - 1;\n end\n end\nendmodule\n", "module top_module(\n input clk,\n input areset,\n input train_valid,\n input train_taken,\n output logic [1:0] state\n);\n always @(posedge clk, posedge areset) begin\n if (areset)\n state <= 1;\n else if (train_valid) begin\n if(state < 3 && train_taken)\n state <= state + 1;\n else if(state > 1 && !train_taken) // Modified the decrement condition to only allow decrementing when state is above 1\n state <= state - 1;\n end\n end\nendmodule\n", "module top_module(\n input clk,\n input areset,\n input train_valid,\n input train_taken,\n output logic [1:0] state\n);\n always @(posedge clk, posedge areset) begin\n if (areset)\n state <= 1;\n else if (train_valid) begin\n if(state < 3 && train_taken)\n state <= state + 1;\n else if(state > 0 && !train_taken)\n state <= state - 2; // Changed decrement step to 2 which could potentially underflow, thus altering functionality significantly.\n end\n end\nendmodule\n", "module top_module(\n input clk,\n input areset,\n input train_valid,\n input train_taken,\n output logic [1:0] state\n);\n always @(posedge clk, posedge areset) begin\n if (areset)\n state <= 1;\n else if (train_valid) begin\n if(state < 3 && train_taken)\n state <= state + 2; // Changed increment step to 2 which might cause overflow in logic [1:0].\n else if(state > 0 && !train_taken)\n state <= state - 1;\n end\n end\nendmodule\n", "module top_module(\n input clk,\n input areset,\n input train_valid,\n input train_taken,\n output logic [1:0] state\n);\n always @(posedge clk, posedge areset) begin\n if (areset)\n state <= 3; // Set reset value to maximum ('2'b11)\n else if (train_valid) begin\n if(state < 3 && train_taken)\n state <= state + 1;\n else if(state > 0 && !train_taken)\n state <= state - 1;\n end\n end\nendmodule\n", "module top_module(\n input clk,\n input areset,\n input train_valid,\n input train_taken,\n output logic [1:0] state\n);\n always @(posedge clk, posedge areset) begin\n if (areset)\n state <= 1;\n else if (train_valid) begin\n if(state < 3) // Removed the condition checking 'train_taken', which alters functionality significantly.\n state <= state + 1;\n else if(state > 0 && !train_taken)\n state <= state - 1;\n end\n end\nendmodule\n"]}
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{"task_id": "history_shift", "mutants": ["module top_module\n(\n input clk,\n input areset,\n input predict_valid,\n input predict_taken,\n output logic [31:0] predict_history,\n \n input train_mispredicted,\n input train_taken,\n input [31:0] train_history\n);\n always@(posedge clk, posedge areset)\n if (areset) begin\n predict_history = 32'hFFFF_FFFF; // Changed from 0 to 32'hFFFF_FFFF\n end else begin\n if (train_mispredicted)\n predict_history <= {train_history, train_taken};\n else if (predict_valid)\n predict_history <= {predict_history, predict_taken};\n end\nendmodule\n", "module top_module\n(\n input clk,\n input areset,\n input predict_valid,\n input predict_taken,\n output logic [31:0] predict_history,\n \n input train_mispredicted,\n input train_taken,\n input [31:0] train_history\n);\n always@(posedge clk, posedge areset)\n if (areset) begin\n predict_history = 0;\n end else begin\n if (train_mispredicted)\n predict_history <= {train_history[30:0], train_taken}; // Changed from train_history to train_history[30:0]\n else if (predict_valid)\n predict_history <= {predict_history, predict_taken};\n end\nendmodule\n", "module top_module\n(\n input clk,\n input areset,\n input predict_valid,\n input predict_taken,\n output logic [31:0] predict_history,\n \n input train_mispredicted,\n input train_taken,\n input [31:0] train_history\n);\n always@(posedge clk, posedge areset)\n if (areset) begin\n predict_history = 0;\n end else begin\n if (train_mispredicted)\n predict_history <= {train_history, train_taken};\n else if (predict_valid)\n predict_history <= {predict_history[30:0], predict_taken}; // Changed indexing from predict_history to predict_history[30:0]\n end\nendmodule\n", "module top_module\n(\n input clk,\n input areset,\n input predict_valid,\n input predict_taken,\n output logic [31:0] predict_history,\n \n input train_mispredicted,\n input train_taken,\n input [31:0] train_history\n);\n always@(posedge clk, posedge areset)\n if (areset) begin\n predict_history = 0;\n end else begin\n if (train_mispredicted)\n predict_history <= {predict_history, train_taken}; // Mistakenly used predict_history instead of train_history\n else if (predict_valid)\n predict_history <= {predict_history, predict_taken};\n end\nendmodule\n", "module top_module\n(\n input clk,\n input areset,\n input predict_valid,\n input predict_taken,\n output logic [31:0] predict_history,\n \n input train_mispredicted,\n input train_taken,\n input [31:0] train_history\n);\n always@(posedge clk) // Removed posedge areset condition\n if (areset) begin\n predict_history = 0;\n end else begin\n if (train_mispredicted)\n predict_history <= {train_history, train_taken};\n else if (predict_valid)\n predict_history <= {predict_history, predict_taken};\n end\nendmodule\n", "module top_module\n(\n input clk,\n input areset,\n input predict_valid,\n input predict_taken,\n output logic [31:0] predict_history,\n \n input train_mispredicted,\n input train_taken,\n input [31:0] train_history\n);\n always@(posedge clk, posedge areset)\n if (areset) begin\n predict_history = 0;\n end else begin\n if (train_mispredicted)\n predict_history <= {train_history, !train_taken}; // Inverted train_taken\n else if (predict_valid)\n predict_history <= {predict_history, predict_taken};\n end\nendmodule\n", "module top_module\n(\n input clk,\n input areset,\n input predict_valid,\n input predict_taken,\n output logic [31:0] predict_history,\n \n input train_mispredicted,\n input train_taken,\n input [31:0] train_history\n);\n always@(posedge clk, posedge areset)\n if (areset) begin\n predict_history <= 1; // Changed from = to <= for consistency\n end else begin\n if (train_mispredicted)\n predict_history <= {train_history, train_taken};\n else if (predict_valid)\n predict_history <= {predict_history, predict_taken};\n end\nendmodule\n", "module top_module\n(\n input clk,\n input areset,\n input predict_valid,\n input predict_taken,\n output logic [31:0] predict_history,\n \n input train_mispredicted,\n input train_taken,\n input [31:0] train_history\n);\n always@(posedge clk, posedge areset)\n if (areset) begin\n predict_history = 0;\n end else begin\n if (train_mispredicted)\n predict_history <= {train_taken, train_history}; // Swapped positions of train_taken and train_history\n else if (predict_valid)\n predict_history <= {predict_history, predict_taken};\n end\nendmodule\n", "module top_module\n(\n input clk,\n input areset,\n input predict_valid,\n input predict_taken,\n output logic [31:0] predict_history,\n \n input train_mispredicted,\n input train_taken,\n input [31:0] train_history\n);\n always@(posedge clk, posedge areset)\n if (areset) begin\n predict_history = 0;\n end else begin\n if (train_mispredicted)\n predict_history <= {train_history, train_taken};\n else // Removed condition for predict_valid\n predict_history <= {predict_history, predict_taken};\n end\nendmodule\n", "module top_module\n(\n input clk,\n input areset,\n input predict_valid,\n input predict_taken,\n output logic [31:0] predict_history,\n \n input train_mispredicted,\n input train_taken,\n input [31:0] train_history\n);\n always@(posedge clk, posedge areset)\n if (areset) begin\n predict_history = 0;\n end else begin\n if (train_mispredicted)\n predict_history <= {train_history[31:1], train_taken}; // Sliced train_history from [31:1]\n else if (predict_valid)\n predict_history <= {predict_history, predict_taken};\n end\nendmodule\n"]}
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{"task_id": "dff", "mutants": ["module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\tinitial\n\t\tq = 1'hx;\n\t\t\n\talways @(posedge clk)\n\t\tq <= d; // Change: No modification, to show the original for comparison.\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\tinitial\n\t\tq = 1'h0; // Change: Initial value changed from 1'hx to 1'h0.\n\t\t\n\talways @(posedge clk)\n\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\tinitial\n\t\tq = 1'hx;\n\t\t\n\talways @(posedge clk)\n\t\tq <= ~d; // Change: d is inverted before assignment to q.\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\tinitial\n\t\tq = 1'h1; // Change: Initial value changed from 1'hx to 1'h1.\n\t\t\n\talways @(posedge clk)\n\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\tinitial\n\t\tq = 1'hx;\n\t\t\n\talways @(negedge clk) // Change: Triggered on the negative edge of clk instead of positive.\n\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\tinitial\n\t\tq = 1'b0; // Change: Changed width of initial value from 1'hx to 1'b0.\n\t\t\n\talways @(posedge clk)\n\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\tinitial\n\t\tq = 1'hx;\n\t\t\n\talways @(posedge clk)\n\t\tif(d == 1'b1) q <= 1'b1; // Change: Only set q to 1 if d is 1, otherwise no change.\n\t\telse q <= q;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\tinitial\n\t\tq = 1'hx;\n\t\t\n\talways @(posedge clk)\n\t\tq <= d | q; // Change: OR operation between d and q before assignment.\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\tinitial\n\t\tq = 1'hx;\n\t\t\n\talways @(posedge clk)\n\t\tq <= d & q; // Change: AND operation between d and q before assignment.\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\tinitial\n\t\tq = 1'hz; // Change: Initial value changed from 1'hx to high impedance 1'hz.\n\t\t\n\talways @(posedge clk)\n\t\tq <= d;\n\t\nendmodule\n"]}
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{"task_id": "countslow", "mutants": ["module top_module(\n\tinput clk,\n\tinput slowena,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse if (slowena) begin\n\t\t\tif (q == 8) // Changed comparison from 9 to 8\n\t\t\t\tq <= 0;\n\t\t\telse\n\t\t\t\tq <= q+1;\n\t\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput slowena,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 1; // Changed reset value from 0 to 1\n\t\telse if (slowena) begin\n\t\t\tif (q == 9)\n\t\t\t\tq <= 0;\n\t\t\telse\n\t\t\t\tq <= q+1;\n\t\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput slowena,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse if (slowena) begin\n\t\t\tif (q == 9)\n\t\t\t\tq <= 1; // Changed reset value after reaching 9 from 0 to 1\n\t\t\telse\n\t\t\t\tq <= q+1;\n\t\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput slowena,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse if (slowena) begin\n\t\t\tif (q == 9)\n\t\t\t\tq <= 0;\n\t\t\telse\n\t\t\t\tq <= q - 1; // Changed increment to decrement\n\t\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput slowena,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse if (!slowena) begin // Changed condition to !slowena\n\t\t\tif (q == 9)\n\t\t\t\tq <= 0;\n\t\t\telse\n\t\t\t\tq <= q+1;\n\t\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput slowena,\n\tinput reset,\n\toutput reg [3:0] q = 1); // Initialized q with 1 instead of default 0\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse if (slowena) begin\n\t\t\tif (q == 9)\n\t\t\t\tq <= 0;\n\t\t\telse\n\t\t\t\tq <= q+1;\n\t\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput slowena,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (!reset) // Changed condition from if (reset) to if (!reset)\n\t\t\tq <= 0;\n\t\telse if (slowena) begin\n\t\t\tif (q == 9)\n\t\t\t\tq <= 0;\n\t\t\telse\n\t\t\t\tq <= q+1;\n\t\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput slowena,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse if (slowena) begin\n\t\t\t// Removed the conditional check entirely, always increment\n\t\t\tq <= q+1;\n\t\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput slowena,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse if (slowena) begin\n\t\t\tif (q == 9)\n\t\t\t\tq <= 0;\n\t\t\telse\n\t\t\t\tq <= q + 2; // Changed increment from +1 to +2\n\t\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput slowena,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse if (slowena) begin\n\t\t\tif (q >= 9) // Changed condition from == to >=\n\t\t\t\tq <= 0;\n\t\t\telse\n\t\t\t\tq <= q+1;\n\t\tend\n\t\nendmodule\n"]}
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{"task_id": "fsm1", "mutants": ["module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin // Change: Modified the always_comb to always @* for sensitivity list\n\t\tcase (state)\n\t\t\tA: next = in ? A : B;\n\t\t\tB: next = in ? B : A;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= B;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? A : B; // Change: Flipped the condition to cause a minor logical change\n\t\t\tB: next = in ? A : B; // Also modified here for consistency\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= B;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? A : B;\n\t\t\tB: next = in ? B : A;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A; // Change: Modified the reset state to A instead of B\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? A : B;\n\t\t\tB: next = in ? B : A;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= B;\n else state <= next;\n\tend\n\t\t\n\tassign out = !(state==B); // Change: Inverted the output logic\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next = A; // Change: Initialized next with A\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? A : B;\n\t\t\tB: next = in ? B : A;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= B;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? A : B;\n\t\t\tB: next = !in ? B : A; // Change: Inverted the in condition for state B\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= B;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? B : A; // Change: Flipped the output state for condition A\n\t\t\tB: next = in ? B : A;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= B;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? A : B;\n\t\t\tB: next = in ? B : A;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= B;\n else state <= !next; // Change: Inverted the next signal\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? A : B;\n\t\t\tB: next = in ? B : A;\n\t\tendcase\n end\n \n always @(posedge clk) begin // Change: Removed posedge areset from sensitivity list\n\t\tif (areset) state <= B;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = in ? A : B;\n\t\t\tB: next = in ? A : B; // Change: Made state B transition logic same as A\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= B;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n"]}
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{"task_id": "dualedge", "mutants": ["module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\treg qp, qn;\n always @(posedge clk)\n qp <= d; // No change here\n always @(negedge clk)\n qn <= d; // No change here\n // assign q = clk ? qp : qn; \n always @(*)\n q <= clk ? qn : qp; // Swapped qn and qp\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\treg qp, qn;\n always @(posedge clk)\n qp <= ~d; // Inverting d on positive edge\n always @(negedge clk)\n qn <= d;\n always @(*)\n q <= clk ? qp : qn;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\treg qp, qn;\n always @(posedge clk)\n qp <= d;\n always @(negedge clk)\n qn <= ~d; // Inverting d on negative edge\n always @(*)\n q <= clk ? qp : qn;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\treg qp, qn;\n always @(posedge clk)\n qp <= d;\n always @(negedge clk)\n qn <= d; // No change here\n always @(*)\n q <= qp; // Changed to always output qp, disregarding clk\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\treg qp, qn;\n always @(posedge clk)\n qp <= d;\n always @(negedge clk)\n qn <= d; // No change here\n always @(*)\n q <= qn; // Changed to always output qn, disregarding clk\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\treg qp, qn;\n always @(posedge clk)\n qp <= d;\n // Removed the always block for negedge clk\n always @(*)\n q <= clk ? qp : qn;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\treg qp, qn;\n // Removed the always block for posedge clk\n always @(negedge clk)\n qn <= d;\n always @(*)\n q <= clk ? qp : qn;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\treg qp, qn;\n always @(posedge clk)\n qp <= d;\n always @(negedge clk)\n qn <= d;\n always @(*)\n q <= !clk ? qp : qn; // Inverted clk condition\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\treg qp, qn;\n always @(posedge clk)\n qp <= d;\n always @(negedge clk)\n qn <= d; \n always @(*)\n q <= qp & qn; // Logical AND of qp and qn\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput d,\n\toutput reg q);\n\t\n\treg qp, qn;\n always @(posedge clk)\n qp <= d; // No change here\n always @(negedge clk)\n qn <= d; // No change here\n always @(*)\n q <= qp | qn; // Logical OR of qp and qn, disregarding clk\nendmodule\n"]}
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{"task_id": "rotate100", "mutants": ["module top_module(\n\tinput clk,\n\tinput load,\n\tinput [1:0] ena,\n\tinput [99:0] data,\n\toutput reg [99:0] q);\n\t\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse if (ena == 2'h1) \n\t\t\tq <= {q[1:0], q[99:2]}; // Modified rotation pattern for right rotation\n\t\telse if (ena == 2'h2)\n\t\t\tq <= {q[98:0], q[99]};\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [1:0] ena,\n\tinput [99:0] data,\n\toutput reg [99:0] q);\n\t\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse if (ena == 2'h1)\n\t\t\tq <= {q[0], q[99:1]};\n\t\telse if (ena == 2'h2)\n\t\t\tq <= {q[97:0], q[99:98]}; // Modified rotation pattern for left rotation\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [1:0] ena,\n\tinput [99:0] data,\n\toutput reg [99:0] q);\n\t\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= {data[98:0], data[99]}; // Modified load pattern slightly\n\t\telse if (ena == 2'h1)\n\t\t\tq <= {q[0], q[99:1]};\n\t\telse if (ena == 2'h2)\n\t\t\tq <= {q[98:0], q[99]};\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [1:0] ena,\n\tinput [99:0] data,\n\toutput reg [99:0] q);\n\t\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse if (ena == 2'h0) // Incorrectly reacting to ena == 2'h0 by rotating right which should not rotate\n\t\t\tq <= {q[0], q[99:1]};\n\t\telse if (ena == 2'h2)\n\t\t\tq <= {q[98:0], q[99]};\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [1:0] ena,\n\tinput [99:0] data,\n\toutput reg [99:0] q);\n\t\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= !data; // Modified the load operation with bitwise NOT operation\n\t\telse if (ena == 2'h1)\n\t\t\tq <= {q[0], q[99:1]};\n\t\telse if (ena == 2'h2)\n\t\t\tq <= {q[98:0], q[99]};\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [1:0] ena,\n\tinput [99:0] data,\n\toutput reg [99:0] q);\n\t\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse if (ena == 2'h1)\n\t\t\tq <= {q[99], q[99:1]}; // Wrongly kept q[99] at both ends in right rotation\n\t\telse if (ena == 2'h2)\n\t\t\tq <= {q[98:0], q[99]};\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [1:0] ena,\n\tinput [99:0] data,\n\toutput reg [99:0] q);\n\t\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse if (ena == 2'h1)\n\t\t\tq <= {q[0], q[99:1]};\n\t\telse if (ena == 2'h2)\n\t\t\tq <= {q[98:0], q[0]}; // Swapped q[99] with q[0] for left rotation, incorrect logic\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [1:0] ena,\n\tinput [99:0] data,\n\toutput reg [99:0] q);\n\t\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= {1'b0, data[99:1]}; // Altered load operation to include a leading zero\n\t\telse if (ena == 2'h1)\n\t\t\tq <= {q[0], q[99:1]};\n\t\telse if (ena == 2'h2)\n\t\t\tq <= {q[98:0], q[99]};\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [1:0] ena,\n\tinput [99:0] data,\n\toutput reg [99:0] q);\n\t\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse if (ena == 2'h1)\n\t\t\tq <= {q[0], q[99:1]}; // Unchanged, but let's pretend it's for consistency\n\t\telse if (ena == 2'h3) // Changed ena condition to a non-functional state (should not rotate but it's coded to)\n\t\t\tq <= {q[98:0], q[99]};\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [1:0] ena,\n\tinput [99:0] data,\n\toutput reg [99:0] q);\n\t\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= {data[0], data[99:1]}; // Altered load operation by swapping bits\n\t\telse if (ena == 2'h1)\n\t\t\tq <= {q[0], q[99:1]};\n\t\telse if (ena == 2'h2)\n\t\t\tq <= {q[98:0], q[99]};\n\tend\nendmodule\n"]}
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{"task_id": "review2015_count1k", "mutants": ["module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [9:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset || q == 998) // Changed comparison from 999 to 998\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [9:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 1; // Changed reset value from 0 to 1\n\t\telse if (q == 999)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [9:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset || q == 999)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q+2; // Changed increment from q+1 to q+2\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [9:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset || q == 999)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q - 1; // Changed increment from q+1 to q-1, making it a decrement\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [9:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset || q == 999)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q+1;\n\talways @(negedge clk) // Added block for negedge clk\n\t\tq <= q;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [9:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse if (q == 999)\n\t\t\tq <= 1; // Changed reset value after reaching 999 from 0 to 1\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [9:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset || q == 997) // Changed comparison from 999 to 997\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [9:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse if (q == 999)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q + 3; // Changed increment from q+1 to q+3\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [9:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse if (q == 999)\n\t\t\tq <= q; // Changed reset logic to keep q unchanged when q == 999\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [9:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset || q == 999)\n\t\t\tq <= 10; // Changed reset value from 0 to 10\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n"]}
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{"task_id": "ece241_2013_q7", "mutants": ["module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tQ <= j&Q | ~k&Q; // Changed ~Q to Q in j&~Q\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tQ <= j&~Q | k&Q; // Removed the negation of k\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tQ <= j|~k&Q; // Changed & to | between j and ~Q\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tQ <= j&~Q | ~k&~Q; // Changed Q to ~Q in ~k&Q\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tQ <= ~j&~Q | ~k&Q; // Negated j in j&~Q\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tQ <= j&~Q; // Removed the ~k&Q part\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tQ <= j&~Q | ~k&Q | j&k; // Added j&k condition\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tQ <= j&~Q | ~k; // Removed the Q in ~k&Q\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tQ <= j | ~k&Q; // Removed the &~Q in j&~Q\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tQ <= j&~Q | ~k&Q ^ j; // Added XOR with j at the end\nendmodule\n"]}
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{"task_id": "lemmings1", "mutants": ["module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\toutput walk_left,\n\toutput walk_right\n);\n\tparameter WL=0, WR=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = bump_left ? WR : WL; // Unchanged\n\t\t\tWR: next = bump_right ? WR: WR; // Changed WL to WR in bump_right case\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\toutput walk_left,\n\toutput walk_right\n);\n\tparameter WL=0, WR=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = bump_left ? WL : WL; // Changed WR to WL in bump_left case\n\t\t\tWR: next = bump_right ? WL: WR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WR; // Changed state <= WL to state <= WR\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\toutput walk_left,\n\toutput walk_right\n);\n\tparameter WL=0, WR=1;\n\treg state;\n\treg next;\n \n always_comb begin // Changed always_comb to always @(*)\n\t\tcase (state)\n\t\t\tWL: next = bump_left ? WR : WL;\n\t\t\tWR: next = bump_right ? WL: WR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WR); // Changed (state==WL) to (state==WR)\n\tassign walk_right = (state==WL); // Changed (state==WR) to (state==WL)\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\toutput walk_left,\n\toutput walk_right\n);\n\tparameter WL=0, WR=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = !bump_left ? WR : WL; // Changed bump_left ? WR : WL to !bump_left ? WR : WL\n\t\t\tWR: next = bump_right ? WL: WR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\toutput walk_left,\n\toutput walk_right\n);\n\tparameter WL=0, WR=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = bump_left ? WR : WR; // Changed WL to WR in no bump_left case\n\t\t\tWR: next = bump_right ? WL: WL; // Changed WR to WL in no bump_right case\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\toutput walk_left,\n\toutput walk_right\n);\n\tparameter WL=0, WR=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = bump_left && bump_right ? WR : WL; // Added bump_right in condition\n\t\t\tWR: next = bump_left && bump_right ? WL: WR; // Added bump_left in condition\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\toutput walk_left,\n\toutput walk_right\n);\n\tparameter WL=0, WR=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = bump_left ? WL : WR; // Inverted the actions for bump_left\n\t\t\tWR: next = bump_right ? WR: WL; // Inverted the actions for bump_right\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\toutput walk_left,\n\toutput walk_right\n);\n\tparameter WL=0, WR=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = bump_left ? WR : WL; \n\t\t\tWR: next = !bump_right ? WL: WR; // Changed bump_right ? WL: WR to !bump_right ? WL: WR\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\toutput walk_left,\n\toutput walk_right\n);\n\tparameter WL=0, WR=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = bump_left ? WR : WL; \n\t\t\tWR: next = bump_right ? WL: WR; \n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WR; // Changed initial state to WR on reset\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\toutput walk_left,\n\toutput walk_right\n);\n\tparameter WL=0, WR=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = bump_left ? WR : WR; // Changed next state to always WR when in WL state\n\t\t\tWR: next = bump_right ? WL: WL; // Changed next state to always WL when in WR state\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\nendmodule\n"]}
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{"task_id": "timer", "mutants": ["module top_module(\n\tinput clk, \n\tinput load, \n\tinput [9:0] data, \n\toutput tc\n);\n\tlogic [9:0] count_value;\n\n\talways @(posedge clk)\n\t\tif(load) count_value <= data;\n\t\telse if(count_value != 0) count_value <= count_value - 2; // Change: decrement by 2 instead of 1\n\n\tassign tc = count_value == 0;\n\nendmodule\n", "module top_module(\n\tinput clk, \n\tinput load, \n\tinput [9:0] data, \n\toutput tc\n);\n\tlogic [9:0] count_value;\n\n\talways @(posedge clk)\n\t\tif(load) count_value <= data + 1; // Change: add 1 to data when loading\n\t\telse if(count_value != 0) count_value <= count_value - 1;\n\n\tassign tc = count_value == 0;\n\nendmodule\n", "module top_module(\n\tinput clk, \n\tinput load, \n\tinput [9:0] data, \n\toutput tc\n);\n\tlogic [8:0] count_value; // Change: count_value bit width decreased to 9 bits\n\n\talways @(posedge clk)\n\t\tif(load) count_value <= data[8:0]; // Adjusted for the bit width change\n\t\telse if(count_value != 0) count_value <= count_value - 1;\n\n\tassign tc = count_value == 0;\n\nendmodule\n", "module top_module(\n\tinput clk, \n\tinput load, \n\tinput [9:0] data, \n\toutput tc\n);\n\tlogic [9:0] count_value;\n\n\talways @(posedge clk)\n\t\tif(load) count_value <= data;\n\t\telse if(count_value != 1) count_value <= count_value - 1; // Change: do not decrement if count_value is 1\n\n\tassign tc = count_value == 0;\n\nendmodule\n", "module top_module(\n\tinput clk, \n\tinput load, \n\tinput [9:0] data, \n\toutput tc\n);\n\tlogic [9:0] count_value;\n\n\talways @(posedge clk)\n\t\tif(load) count_value <= data;\n\t\telse if(count_value != 0) count_value <= count_value - 1;\n\n\tassign tc = (count_value == 0) ? 1'b0 : 1'b1; // Change: invert the logic of tc\n\nendmodule\n", "module top_module(\n\tinput clk, \n\tinput load, \n\tinput [9:0] data, \n\toutput tc\n);\n\tlogic [9:0] count_value;\n\n\talways @(negedge clk) // Change: Triggered on negedge of clk instead of posedge\n\t\tif(load) count_value <= data;\n\t\telse if(count_value != 0) count_value <= count_value - 1;\n\n\tassign tc = count_value == 0;\n\nendmodule\n", "module top_module(\n\tinput clk, \n\tinput load, \n\tinput [9:0] data, \n\toutput tc\n);\n\tlogic [9:0] count_value;\n\n\talways @(posedge clk)\n\t\tif(load) count_value <= data;\n\t\t// Change: Always decrement, regardless of count_value being 0 or not\n\t\telse count_value <= count_value - 1; \n\n\tassign tc = count_value == 0;\n\nendmodule\n", "module top_module(\n\tinput clk, \n\tinput load, \n\tinput [9:0] data, \n\toutput tc\n);\n\tlogic [9:0] count_value;\n\n\talways @(posedge clk)\n\t\tif(load) count_value <= data;\n\t\telse if(count_value != 0) count_value <= count_value - 1;\n\n\tassign tc = !count_value; // Change: Simplify the assignment to tc\n\nendmodule\n", "module top_module(\n\tinput clk, \n\tinput load, \n\tinput [9:0] data, \n\toutput tc\n);\n\tlogic [9:0] count_value;\n\n\talways @(posedge clk)\n\t\tif(load) count_value <= ~data; // Change: Invert data when loading\n\t\telse if(count_value != 0) count_value <= count_value - 1;\n\n\tassign tc = count_value == 0;\n\nendmodule\n", "module top_module(\n\tinput clk, \n\tinput load, \n\tinput [9:0] data, \n\toutput tc\n);\n\tlogic [9:0] count_value;\n\n\talways @(posedge clk)\n\t\tif(load) count_value <= data;\n\t\telse if(count_value != 0) count_value <= count_value - 1;\n\n\tassign tc = (count_value == 1); // Change: tc asserts when count_value is 1 instead of 0\n\nendmodule\n"]}
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{"task_id": "dff8r", "mutants": ["module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 8'hFF; // Change: q reset value changed from 0 to 0xFF\n\t\telse\n\t\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(posedge clk or posedge reset) // Change: Added reset as a trigger in always block\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (!reset) // Change: Inverted the condition check for reset\n\t\t\tq <= d;\n\t\telse\n\t\t\tq <= 0;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= {d[6:0], 1'b0}; // Change: Least significant bit of d set to 0 before assignment\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(negedge clk) // Change: Triggered on the negative edge of clk instead of positive\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(posedge clk)\n\t\tq <= reset ? 8'b10101010 : d; // Change: q reset value changed to a pattern 0xAA\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d ^ 8'hFF; // Change: XOR operation with all 1's to flip bits of d before assignment\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq[7:0] <= {8{1'b1}}; // Change: Set q to all 1s on reset\n\t\telse\n\t\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d << 1; // Change: Left shift d by 1 before assignment\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= {1'b1, d[7:1]}; // Change: Most significant bit of d set to 1 before assignment\n\t\nendmodule\n"]}
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{"task_id": "edgedetect2", "mutants": ["module top_module(\n\tinput clk,\n\tinput [7:0] in,\n\toutput reg [7:0] anyedge);\n\t\n\treg [7:0] d_last;\t\n\t\n\talways @(posedge clk) begin\n\t\td_last <= in;\n\t\tanyedge <= in ~^ d_last; // Change: using XNOR (~^) instead of XOR (^)\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] in,\n\toutput reg [7:0] anyedge);\n\t\n\treg [7:0] d_last;\t\n\t\n\talways @(posedge clk) begin\n\t\td_last <= in;\n\t\tanyedge[7:1] <= in[7:1] ^ d_last[7:1]; // Change: exclude LSB from operation\n\t\tanyedge[0] <= in[0] ^ d_last[0];\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] in,\n\toutput reg [7:0] anyedge);\n\t\n\treg [7:0] d_last;\n\treg [7:0] d_last2; // Change: added an extra register for holding past values\n\t\n\talways @(posedge clk) begin\n\t\td_last <= in;\n\t\td_last2 <= d_last; // This change introduces a delay in detection\n\t\tanyedge <= in ^ d_last2;\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] in,\n\toutput reg [7:0] anyedge);\n\t\n\treg [7:0] d_last;\t\n\t\n\talways @(posedge clk) begin\n\t\td_last <= {d_last[6:0], in[7]}; // Change: shift left and input MSB\n\t\tanyedge <= in ^ d_last;\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] in,\n\toutput reg [7:0] anyedge);\n\t\n\treg [8:0] d_last; // Change: Increased register size by 1 bit\t\n\t\n\talways @(posedge clk) begin\n\t\td_last <= {1'b0, in}; // Prepending a bit to keep register size consistent\n\t\tanyedge <= in ^ d_last[8:1]; // Adjusted indexing due to register size change\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] in,\n\toutput reg [7:0] anyedge);\n\t\n\treg [7:0] d_last;\n\t\n\talways @(posedge clk) begin\n\t\td_last <= {in[0], d_last[7:1]}; // Change: Rotate right the d_last on every clock\n\t\tanyedge <= in ^ d_last;\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] in,\n\toutput reg [7:0] anyedge);\n\t\n\treg [7:0] d_last;\t\n\t\n\talways @(posedge clk) begin\n\t\td_last <= in;\n\t\tanyedge[7:0] <= {in[6:0] ^ d_last[6:0], in[7] ^ d_last[7]}; // Change: Swapping MSB processing\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] in,\n\toutput reg [7:0] anyedge);\n\t\n\treg [7:0] d_last;\n\t\t\n\talways @(posedge clk) begin\n\t\td_last[7:1] <= in[7:1]; // Change: MSB of d_last never updates\n\t\tanyedge <= in ^ d_last;\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] in,\n\toutput reg [7:0] anyedge);\n\t\n\t// Change: Removed the d_last register\n\talways @(posedge clk) begin\n\t\tanyedge <= in ^ anyedge; // This uses the previous anyedge value for comparison, introducing a potential logical flaw\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] in,\n\toutput reg [7:0] anyedge);\n\t\n\treg [7:0] d_last;\t\n\t\n\talways @(negedge clk) begin // Change: Trigger on negative clock edge\n\t\td_last <= in;\n\t\tanyedge <= in ^ d_last;\n\tend\n\t\nendmodule\n"]}
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{"task_id": "circuit9", "mutants": ["module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg [2:0] q\n);\n\n\talways @(posedge clk)\n\t\tif (a)\n\t\t\tq <= 4; // No change\n\t\telse if (q == 5) // Changed comparison value from 6 to 5\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q + 1'b1;\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg [2:0] q\n);\n\n\talways @(posedge clk)\n\t\tif (a)\n\t\t\tq <= 3; // Changed assignment value from 4 to 3\n\t\telse if (q == 6)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q + 1'b1;\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg [2:0] q\n);\n\n\talways @(posedge clk)\n\t\tif (a)\n\t\t\tq <= 4;\n\t\telse if (q == 6)\n\t\t\tq <= 1; // Changed reset value from 0 to 1\n\t\telse\n\t\t\tq <= q + 1'b1;\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg [2:0] q\n);\n\n\talways @(posedge clk)\n\t\tif (a)\n\t\t\tq <= 4;\n\t\telse if (q == 6)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q + 1; // Removed explicit bit addition\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg [2:0] q\n);\n\n\talways @(posedge clk)\n\t\tif (a)\n\t\t\tq <= 4;\n\t\telse if (q == 6)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q - 1'b1; // Changed increment to decrement\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg [2:0] q\n);\n\n\talways @(posedge clk)\n\t\tif (a)\n\t\t\tq <= 5; // Changed value to set q to 5 instead of 4\n\t\telse if (q == 6)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q + 1'b1;\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg [2:0] q\n);\n\n\talways @(posedge clk)\n\t\tif (a)\n\t\t\tq <= 4;\n\t\telse if (q == 7) // Changed comparison value from 6 to 7, unreachable in 3 bits\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q + 1'b1;\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg [2:0] q\n);\n\n\talways @(posedge clk)\n\t\tif (a)\n\t\t\tq <= 4;\n\t\telse if (q == 6)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q + 2'b10; // Changed increment value from 1 to 2\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg [2:0] q\n);\n\n\talways @(posedge clk)\n\t\tif (a)\n\t\t\tq <= 0; // Changed to set q to 0 instead of 4\n\t\telse if (q == 6)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q + 1'b1;\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a, \n\toutput reg [2:0] q\n);\n\n\talways @(posedge clk)\n\t\tif (!a) // Changed the condition to negate 'a'\n\t\t\tq <= 4;\n\t\telse if (q == 6)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q + 1'b1;\n\nendmodule\n"]}
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{"task_id": "lfsr5", "mutants": ["module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [4:0] q);\n\t\n\tlogic [4:0] q_next;\n\talways @(q) begin\n\t\tq_next = q[4:1];\n\t\tq_next[4] = q[0];\n\t\tq_next[2] ^= q[0]; // Original: q_next[2] ^= q[0]; Mutation: No change here to highlight this is the original line intended for mutation in the explanation.\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 5'h1F; // Mutation: Changed reset value from 5'h1 to 5'h1F.\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [4:0] q);\n\t\n\tlogic [4:0] q_next;\n\talways @(q) begin\n\t\tq_next = q[4:0]; // Mutation: Changed from q[4:1] to q[4:0], keeping q[0] in the next state.\n\t\tq_next[4] = q[0];\n\t\tq_next[2] ^= q[0];\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 5'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [4:0] q);\n\t\n\tlogic [4:0] q_next;\n\talways @(posedge clk) begin // Mutation: Changed sensitivity list from @(q) to @(posedge clk).\n\t\tq_next = q[4:1];\n\t\tq_next[4] = q[0];\n\t\tq_next[2] ^= q[0];\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 5'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [4:0] q);\n\t\n\tlogic [4:0] q_next;\n\talways @(q) begin\n\t\tq_next = q[4:1];\n\t\tq_next[4] = !q[0]; // Mutation: Changed q[0] to !q[0], inverting q[0] for q_next[4].\n\t\tq_next[2] ^= q[0];\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 5'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [4:0] q);\n\t\n\tlogic [4:0] q_next;\n\talways @(q) begin\n\t\tq_next = q[4:1];\n\t\tq_next[4] = q[0];\n\t\tq_next[3] ^= q[0]; // Mutation: Changed bit for XOR from q_next[2] to q_next[3].\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 5'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [4:0] q);\n\t\n\tlogic [4:0] q_next;\n\talways @(q) begin\n\t\tq_next = {q[3:0], q[4]}; // Mutation: Changed q_next assignment strategy.\n\t\tq_next[4] = q[0];\n\t\tq_next[2] ^= q[0];\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 5'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [4:0] q);\n\t\n\tlogic [4:0] q_next;\n\talways @(q) begin\n\t\tq_next = q[4:1];\n\t\tq_next[4] = ~q[0]; // Mutation: Changed q[0] to ~q[0], bitwise NOT operation.\n\t\tq_next[2] ^= q[0];\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 5'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [4:0] q);\n\t\n\tlogic [4:0] q_next;\n\talways @(q) begin\n\t\tq_next[0] = q[4]; // Mutation: Added this line, changing the next value of q[0].\n\t\tq_next[1:4] = q[0:3];\n\t\tq_next[4] = q[0];\n\t\tq_next[2] ^= q[0];\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 5'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [4:0] q);\n\t\n\tlogic [4:0] q_next;\n\talways @(q) begin\n\t\tq_next = q[4:1];\n\t\tq_next[4] = q[0];\n\t\tq_next[2] ^= !q[0]; // Mutation: Changed q_next[2] to XOR with !q[0] instead of q[0].\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 5'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [4:0] q);\n\t\n\tlogic [4:0] q_next;\n\talways @(q) begin\n\t\tq_next[4:2] = q[3:1]; // Mutation: Changed the shift direction of q_next.\n\t\tq_next[1] = q[0];\n\t\tq_next[0] = q[4];\n\t\tq_next[2] ^= q[0];\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 5'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n"]}
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{"task_id": "count15", "mutants": ["module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 1; // Changed reset value from 0 to 1\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q - 1; // Changed increment to decrement, counts down instead of up\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse if (q == 15) // Added condition to stop counting after reaching 15\n\t\t\tq <= q;\n\t\telse\n\t\t\tq <= q + 1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(negedge clk) // Changed posedge to negedge\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q + 1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q + 2; // Changed increment value from 1 to 2\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [2:0] q); // Changed output register size from 4 bits to 3 bits\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q + 1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (!reset) // Changed reset condition to negate reset\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q + 1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= (q + 1) & 15; // Added bitwise AND to limit the maximum value\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= {q[2:0], q[3]}; // Rotate left the bits of q\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq[3:1] <= q[2:0]; // Shift left the bits of q, leaving LSB unchanged\n\t\t\tq[0] <= q[3]; // This was added to rotate the MSB to LSB\n\t\nendmodule\n"]}
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{"task_id": "2013_q2afsm", "mutants": ["module top_module (\n input clk,\n input resetn,\n input [3:1] r,\n output [3:1] g\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state, next;\n\n always @(posedge clk) begin\n if (~resetn) state <= A;\n else state <= next;\n end\n \n always@(state,r) begin\n case (state)\n A: if (r[1]) next = B;\n else if (r[2]) next = C;\n // Commented out the transition to D state based on r[3] input\n // else if (r[3]) next = D; // Change here\n else next = A;\n B: next = r[1] ? B : A;\n C: next = r[2] ? C : A;\n D: next = r[3] ? D : A;\n default: next = 'x;\n endcase\n end\n \n assign g[1] = (state == B); \n assign g[2] = (state == C); \n assign g[3] = (state == D); \nendmodule\n", "module top_module (\n input clk,\n input resetn,\n input [3:1] r,\n output [3:1] g\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state, next;\n\n always @(posedge clk) begin\n if (~resetn) state <= A;\n else state <= next;\n end\n \n always@(state,r) begin\n case (state)\n A: if (r[1]) next = B;\n else if (r[2]) next = C;\n else if (r[3]) next = D;\n else next = A;\n B: next = r[1] ? B : A;\n C: next = r[2] ? C : A;\n // Modified the behavior in state D to always transition to A\n D: next = A; // Change here\n default: next = 'x;\n endcase\n end\n \n assign g[1] = (state == B); \n assign g[2] = (state == C); \n assign g[3] = (state == D); \nendmodule\n", "module top_module (\n input clk,\n input resetn,\n input [3:1] r,\n output [3:1] g\n);\n parameter A=0, B=1, C=2, D=4; // Changed state code for D from 3 to 4\n reg [1:0] state, next;\n\n always @(posedge clk) begin\n if (~resetn) state <= A;\n else state <= next;\n end\n \n always@(state,r) begin\n case (state)\n A: if (r[1]) next = B;\n else if (r[2]) next = C;\n else if (r[3]) next = D;\n else next = A;\n B: next = r[1] ? B : A;\n C: next = r[2] ? C : A;\n D: next = r[3] ? D : A;\n default: next = 'x;\n endcase\n end\n \n assign g[1] = (state == B); \n assign g[2] = (state == C); \n assign g[3] = (state == D); \nendmodule\n", "module top_module (\n input clk,\n input resetn,\n input [3:1] r,\n output [3:1] g\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state, next;\n\n always @(posedge clk) begin\n if (~resetn) state <= A;\n else state <= next;\n end\n \n always@(state,r) begin\n case (state)\n A: if (r[1]) next = B;\n else if (r[2]) next = C;\n else if (r[3]) next = D;\n else next = A;\n B: next = r[1] ? B : A;\n C: next = r[2] ? C : A;\n D: next = r[3] ? D : A;\n default: next = 'x; // Change here, made no actual change but indicating a focus point\n endcase\n end\n \n assign g[1] = (state == B); \n assign g[2] = (state == C); \n assign g[3] = (state == D); \nendmodule\n", "module top_module (\n input clk,\n input resetn,\n input [3:1] r,\n output [3:1] g\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state, next;\n\n always @(posedge clk) begin\n if (~resetn) state <= A;\n else state <= next;\n end\n \n always@(state,r) begin\n case (state)\n A: if (r[1]) next = B;\n else if (r[2]) next = C;\n else if (r[3]) next = D;\n else next = A;\n B: next = r[1] ? B : A;\n C: next = r[2] ? C : A;\n D: // Removed the condition for D state's next value\n next = A; // Change here\n default: next = 'x;\n endcase\n end\n \n assign g[1] = (state == B); \n assign g[2] = (state == C); \n assign g[3] = (state == D); \nendmodule\n", "module top_module (\n input clk,\n input resetn,\n input [3:1] r,\n output [3:1] g\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state, next;\n\n always @(posedge clk) begin\n if (~resetn) state <= A;\n else state <= next;\n end\n \n always@(state,r) begin\n case (state)\n A: if (r[1]) next = B;\n else if (r[2]) next = C;\n else if (r[3]) next = D;\n else next = A;\n B: next = r[1] ? B : A;\n C: next = r[2] ? C : A;\n D: next = r[3] ? D : A;\n // Introduced a redundant default case that does not change the functionality\n default: next = next; // Change here\n endcase\n end\n \n assign g[1] = (state == B); \n assign g[2] = (state == C); \n assign g[3] = (state == D); \nendmodule\n", "module top_module (\n input clk,\n input resetn,\n input [3:1] r,\n output [3:1] g\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state, next;\n\n always @(posedge clk) begin\n if (~resetn) state <= A;\n else state <= next;\n end\n \n always@(state,r) begin\n case (state)\n A: if (r[1]) next = B;\n else if (r[2]) next = C;\n else if (r[3]) next = D;\n else next = A;\n B: next = r[1] ? B : A;\n C: next = r[2] ? C : A;\n D: next = r[3] ? D : A;\n endcase\n // Added an unrelated combinational logic that does not affect state transitions\n if (next == D) next = A; // Change here, but won't affect due to being after case statement\n end\n \n assign g[1] = (state == B); \n assign g[2] = (state == C); \n assign g[3] = (state == D); \nendmodule\n", "module top_module (\n input clk,\n input resetn,\n input [3:1] r,\n output [3:1] g\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state, next;\n\n always @(posedge clk) begin\n if (~resetn) state <= A;\n else state <= next;\n end\n \n always@(state,r) begin\n case (state)\n A: if (r[1]) next = B;\n else if (r[2]) next = C;\n else if (r[3]) next = D;\n else next = A;\n B: next = r[1] ? B : A;\n // Tweaked the condition for transitioning from C to A to require both r[2] and r[3] to be 0\n C: next = r[2] && !r[3] ? C : A; // Change here\n D: next = r[3] ? D : A;\n endcase\n end\n \n assign g[1] = (state == B); \n assign g[2] = (state == C); \n assign g[3] = (state == D); \nendmodule\n", "module top_module (\n input clk,\n input resetn,\n input [3:1] r,\n output [3:1] g\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state, next;\n\n always @(posedge clk) begin\n if (~resetn) state <= A;\n else state <= next;\n end\n \n always@(state,r) begin\n case (state)\n A: if (r[1]) next = B;\n else if (r[2]) next = C;\n else if (r[3]) next = D;\n else next = A;\n B: next = r[1] ? B : A;\n C: next = r[2] ? C : A;\n D: next = r[3] ? D : A;\n endcase\n end\n // Changed the assignment of g[2] to be high when in state D instead of C\n assign g[1] = (state == B); \n assign g[2] = (state == D); // Change here \n assign g[3] = (state == D); \nendmodule\n", "module top_module (\n input clk,\n input resetn,\n input [3:1] r,\n output [3:1] g\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state, next;\n\n always @(posedge clk) begin\n if (~resetn) state <= A;\n else state <= next;\n end\n \n always@(state,r) begin\n case (state)\n A: if (r[1]) next = B;\n else if (r[2]) next = C;\n // Changed condition for transitioning to state D, requires all r[1], r[2], and r[3]\n else if (r[1] && r[2] && r[3]) next = D; // Change here\n else next = A;\n B: next = r[1] ? B : A;\n C: next = r[2] ? C : A;\n D: next = r[3] ? D : A;\n endcase\n end\n \n assign g[1] = (state == B); \n assign g[2] = (state == C); \n assign g[3] = (state == D); \nendmodule\n"]}
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{"task_id": "count10", "mutants": ["module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset || q == 8) // Changed condition from q == 9 to q == 8\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset || q == 9)\n\t\t\tq <= 1; // Changed reset value from 0 to 1\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset) // Removed the q == 9 condition\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset || q == 9)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q + 2; // Changed increment from q+1 to q+2\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset || q == 10) // Changed condition to q == 10, which is out of 4-bit range\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk or posedge reset) // Changed sensitivity list to include posedge reset\n\t\tif (reset || q == 9)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(negedge clk) // Changed clock edge from posedge to negedge\n\t\tif (reset || q == 9)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (!reset && q == 9) // Changed reset condition to be active low\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset) // Simplified condition to only check reset\n\t\t\tq <= 0;\n\t\telse if (q == 9) // Moved q == 9 check to an else if block\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q = 4'b0001); // Initialized q with 1 instead of default 0\n\n\talways @(posedge clk)\n\t\tif (reset || q == 9)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n"]}
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{"task_id": "fsm_ps2", "mutants": ["module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3];\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = in3 ? BYTE2 : BYTE1; // No change\n\t\t\tBYTE2: next = BYTE3; // No change\n\t\t\tBYTE3: next = BYTE1; // Mutant: changed next = DONE to next = BYTE1\n\t\t\tDONE: next = in3 ? BYTE2 : BYTE1; // No change\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==BYTE1); // Mutant: changed state==DONE to state==BYTE1\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3; // No change\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3]; // No change\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = in3 ? BYTE3 : BYTE1; // Mutant: changed BYTE2 to BYTE3\n\t\t\tBYTE2: next = BYTE3; // No change\n\t\t\tBYTE3: next = DONE; // No change\n\t\t\tDONE: next = in3 ? BYTE2 : BYTE1; // No change\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE); // No change\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3; // No change\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3]; // No change\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = in3 ? BYTE2 : BYTE2; // Mutant: changed second BYTE1 to BYTE2\n\t\t\tBYTE2: next = BYTE3; // No change\n\t\t\tBYTE3: next = DONE; // No change\n\t\t\tDONE: next = in3 ? BYTE2 : BYTE1; // No change\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE); // No change\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3; // No change\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3]; // No change\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = in3 ? BYTE2 : BYTE1; // No change\n\t\t\tBYTE2: next = BYTE1; // Mutant: changed next = BYTE3 to BYTE1\n\t\t\tBYTE3: next = DONE; // No change\n\t\t\tDONE: next = in3 ? BYTE2 : BYTE1; // No change\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE); // No change\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3; // No change\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3]; // No change\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = !in3 ? BYTE2 : BYTE1; // Mutant: changed in3 ? to !in3 ?\n\t\t\tBYTE2: next = BYTE3; // No change\n\t\t\tBYTE3: next = DONE; // No change\n\t\t\tDONE: next = in3 ? BYTE2 : BYTE1; // No change\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE); // No change\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3; // No change\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3]; // No change\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = in3 ? BYTE2 : BYTE1; // No change\n\t\t\tBYTE2: next = BYTE3; // No change\n\t\t\tBYTE3: next = DONE; // No change\n\t\t\tDONE: next = !in3 ? BYTE2 : BYTE1; // Mutant: changed in3 ? to !in3 ?\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE); // No change\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3; // No change\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3]; // No change\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = in3 ? BYTE2 : BYTE1; // No change\n\t\t\tBYTE2: next = BYTE2; // Mutant: changed next = BYTE3 to BYTE2\n\t\t\tBYTE3: next = DONE; // No change\n\t\t\tDONE: next = in3 ? BYTE2 : BYTE1; // No change\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE); // No change\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3; // No change\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3]; // No change\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = in3 ? BYTE1 : BYTE1; // Mutant: changed BYTE2 to BYTE1 in true case\n\t\t\tBYTE2: next = BYTE3; // No change\n\t\t\tBYTE3: next = DONE; // No change\n\t\t\tDONE: next = in3 ? BYTE2 : BYTE1; // No change\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE); // No change\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3; // No change\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3]; // No change\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = in3 ? BYTE2 : BYTE2; // Mutant: changed second BYTE1 to BYTE2\n\t\t\tBYTE2: next = BYTE1; // Mutant: changed next = BYTE3 to BYTE1\n\t\t\tBYTE3: next = DONE; // No change\n\t\t\tDONE: next = in3 ? BYTE2 : BYTE1; // No change\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE); // No change\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput [7:0] in,\n\tinput reset,\n\toutput done\n);\n\tparameter BYTE1=0, BYTE2=1, BYTE3=2, DONE=3; // No change\n\treg [1:0] state;\n\treg [1:0] next;\n \n wire in3 = in[3]; // No change\n \n always_comb begin\n\t\tcase (state)\n\t\t\tBYTE1: next = in3 ? BYTE2 : BYTE1; // No change\n\t\t\tBYTE2: next = BYTE3; // No change\n\t\t\tBYTE3: next = BYTE2; // Mutant: changed next = DONE to BYTE2\n\t\t\tDONE: next = in3 ? BYTE2 : BYTE1; // No change\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= BYTE1;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==BYTE3); // Mutant: changed state==DONE to state==BYTE3\nendmodule\n"]}
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{"task_id": "2014_q3bfsm", "mutants": ["module top_module (\n\tinput clk,\n\tinput reset,\n\tinput x,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A;\n\t\telse state <= next; // No change here.\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = x ? B : A; // No change here.\n\t\t\tB: next = x ? E : B; // No change here.\n\t\t\tC: next = x ? B : C; // No change here.\n\t\t\tD: next = x ? C : D; // Change: original was \"D: next = x ? C : B;\"\n\t\t\tE: next = x ? E : D; // No change here.\t\t\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t \n\tassign z = (state == D) || (state == E); // No change here.\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput x,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= B; // Change: original was \"if (reset) state <= A;\"\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = x ? B : A;\n\t\t\tB: next = x ? E : B;\n\t\t\tC: next = x ? B : C;\n\t\t\tD: next = x ? C : B;\t\t\t\n\t\t\tE: next = x ? E : D;\t\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t \n\tassign z = (state == D) || (state == E);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput x,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = x ? B : C; // Change: original was \"A: next = x ? B : A;\"\n\t\t\tB: next = x ? E : B;\n\t\t\tC: next = x ? B : C;\n\t\t\tD: next = x ? C : B;\t\t\t\n\t\t\tE: next = x ? E : D;\t\t\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t \n\tassign z = (state == D) || (state == E);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput x,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = x ? B : A;\n\t\t\tB: next = x ? E : B;\n\t\t\tC: next = x ? A : C; // Change: original was \"C: next = x ? B : C;\"\n\t\t\tD: next = x ? C : B;\t\t\n\t\t\tE: next = x ? E : D;\t\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t \n\tassign z = (state == D) || (state == E);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput x,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = x ? B : A;\n\t\t\tB: next = x ? E : B;\n\t\t\tC: next = x ? B : C;\n\t\t\tD: next = x ? C : B;\t\t\t\n\t\t\tE: next = x ? D : D; // Change: original was \"E: next = x ? E : D;\"\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t \n\tassign z = (state == D) || (state == E);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput x,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = x ? B : A;\n\t\t\tB: next = x ? E : B;\n\t\t\tC: next = x ? B : C;\n\t\t\tD: next = x ? C : B;\t\t\t\n\t\t\tE: next = x ? E : D; // No change here.\n\t\t\tdefault: next = 3'b010; // Change: original was \"default: next = 'x;\"\n\t\tendcase\n\tend\n\t \n\tassign z = (state == D) || (state == E);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput x,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = x ? A : A; // Change: original was \"A: next = x ? B : A;\"\n\t\t\tB: next = x ? E : B;\n\t\t\tC: next = x ? B : C;\n\t\t\tD: next = x ? C : B;\t\t\t\n\t\t\tE: next = x ? E : D;\t\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t \n\tassign z = (state == D) || (state == E);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput x,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = x ? B : A;\n\t\t\tB: next = x ? E : C; // Change: original was \"B: next = x ? E : B;\"\n\t\t\tC: next = x ? B : C;\n\t\t\tD: next = x ? C : B;\t\t\t\n\t\t\tE: next = x ? E : D;\t\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t \n\tassign z = (state == D) || (state == E);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput x,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = x ? B : A;\n\t\t\tB: next = x ? E : B;\n\t\t\tC: next = x ? B : C;\n\t\t\tD: next = x ? C : B;\t\t\t\n\t\t\tE: next = x ? D : E; // Change: original was \"E: next = x ? E : D;\"\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t \n\tassign z = (state == D) || (state == E); // No change here.\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput x,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, D=3, E=4;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = x ? B : A;\n\t\t\tB: next = x ? E : B;\n\t\t\tC: next = x ? B : D; // Change: original was \"C: next = x ? B : C;\"\n\t\t\tD: next = x ? C : B;\t\t\t\n\t\t\tE: next = x ? E : D;\t\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t \n\tassign z = (state == D) || (state == E);\n\t\nendmodule\n"]}
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{"task_id": "2013_q2bfsm", "mutants": ["module top_module (\n\tinput clk,\n\tinput resetn,\n\tinput x,\n\tinput y,\n\toutput f,\n\toutput g\n);\n\tparameter A=0, B=1, S0=2, S1=3, S10=4, G1=5, G2=6, P0=7, P1=8; // unchanged\n\treg [3:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (~resetn) state <= A; // unchanged\n\t\telse state <= next; // unchanged\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = B; // unchanged\n\t\t\tB: next = S0; // unchanged\n\t\t\tS0: next = x ? S1 : S0; // unchanged\n\t\t\tS1: next = x ? S10 : S0; // changed S1 to S10 in next state transition\n\t\t\tS10: next = x ? G1 : S0; // unchanged\n\t\t\tG1: next = y ? P1 : G2; // unchanged\n\t\t\tG2: next = y ? P1 : P0; // unchanged\n\t\t\tP0: next = P0; // unchanged\n\t\t\tP1: next = P1; // unchanged\n\t\t\tdefault: next = 'x; // unchanged\n\t\tendcase\n\tend\n\t\n\tassign f = (state == B); // unchanged\n\tassign g = (state == G1) || (state == G2) || (state == P1); // unchanged\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput resetn,\n\tinput x,\n\tinput y,\n\toutput f,\n\toutput g\n);\n\tparameter A=0, B=1, S0=2, S1=3, S10=4, G1=5, G2=6, P0=7, P1=8; // unchanged\n\treg [3:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (~resetn) state <= A; // unchanged\n\t\telse state <= next; // unchanged\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = B; // unchanged\n\t\t\tB: next = S0; // unchanged\n\t\t\tS0: next = x ? S10 : S0; // changed S1 to S10 in S0 state transition\n\t\t\tS1: next = x ? S1 : S10; // unchanged\n\t\t\tS10: next = x ? G1 : S0; // unchanged\n\t\t\tG1: next = y ? P1 : G2; // unchanged\n\t\t\tG2: next = y ? P1 : P0; // unchanged\n\t\t\tP0: next = P0; // unchanged\n\t\t\tP1: next = P1; // unchanged\n\t\t\tdefault: next = 'x; // unchanged\n\t\tendcase\n\tend\n\t\n\tassign f = (state == B); // unchanged\n\tassign g = (state == G1) || (state == G2) || (state == P1); // unchanged\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput resetn,\n\tinput x,\n\tinput y,\n\toutput f,\n\toutput g\n);\n\tparameter A=0, B=1, S0=2, S1=3, S10=4, G1=5, G2=6, P0=7, P1=8; // unchanged\n\treg [3:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (~resetn) state <= A; // unchanged\n\t\telse state <= next; // unchanged\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = B; // unchanged\n\t\t\tB: next = S0; // unchanged\n\t\t\tS0: next = x ? S1 : S0; // unchanged\n\t\t\tS1: next = x ? S1 : S10; // unchanged\n\t\t\tS10: next = x ? G1 : S0; // unchanged\n\t\t\tG1: next = y ? G2 : G2; // changed P1 to G2 in G1 state transition\n\t\t\tG2: next = y ? P1 : P0; // unchanged\n\t\t\tP0: next = P0; // unchanged\n\t\t\tP1: next = P1; // unchanged\n\t\t\tdefault: next = 'x; // unchanged\n\t\tendcase\n\tend\n\t\n\tassign f = (state == B); // unchanged\n\tassign g = (state == G1) || (state == G2) || (state == P1); // unchanged\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput resetn,\n\tinput x,\n\tinput y,\n\toutput f,\n\toutput g\n);\n\tparameter A=0, B=1, S0=2, S1=3, S10=4, G1=5, G2=6, P0=7, P1=8; // unchanged\n\treg [3:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (~resetn) state <= A; // unchanged\n\t\telse state <= next; // unchanged\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = B; // unchanged\n\t\t\tB: next = S1; // changed B state transition to S1 directly\n\t\t\tS0: next = x ? S1 : S0; // unchanged\n\t\t\tS1: next = x ? S1 : S10; // unchanged\n\t\t\tS10: next = x ? G1 : S0; // unchanged\n\t\t\tG1: next = y ? P1 : G2; // unchanged\n\t\t\tG2: next = y ? P1 : P0; // unchanged\n\t\t\tP0: next = P0; // unchanged\n\t\t\tP1: next = P1; // unchanged\n\t\t\tdefault: next = 'x; // unchanged\n\t\tendcase\n\tend\n\t\n\tassign f = (state == B); // unchanged\n\tassign g = (state == G1) || (state == G2) || (state == P1); // unchanged\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput resetn,\n\tinput x,\n\tinput y,\n\toutput f,\n\toutput g\n);\n\tparameter A=0, B=1, S0=2, S1=3, S10=4, G1=5, G2=6, P0=7, P1=8; // unchanged\n\treg [3:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (~resetn) state <= A; // unchanged\n\t\telse state <= next; // unchanged\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = B; // unchanged\n\t\t\tB: next = S0; // unchanged\n\t\t\tS0: next = x ? S1 : S0; // unchanged\n\t\t\tS1: next = x ? S1 : S10; // unchanged\n\t\t\tS10: next = x ? S0 : G1; // changed G1 to S0 in S10 state transition\n\t\t\tG1: next = y ? P1 : G2; // unchanged\n\t\t\tG2: next = y ? P1 : P0; // unchanged\n\t\t\tP0: next = P0; // unchanged\n\t\t\tP1: next = P1; // unchanged\n\t\t\tdefault: next = 'x; // unchanged\n\t\tendcase\n\tend\n\t\n\tassign f = (state == B); // unchanged\n\tassign g = (state == G1) || (state == G2) || (state == P1); // unchanged\nendmodule\n"]}
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{"task_id": "dff8p", "mutants": ["module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(negedge clk)\n\t\tif (reset)\n\t\t\tq <= 8'h35; // Changed reset value to 0x35\n\t\telse\n\t\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(posedge clk) // Changed to posedge\n\t\tif (reset)\n\t\t\tq <= 8'h34;\n\t\telse\n\t\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(negedge clk)\n\t\tif (!reset) // Inverted the reset condition\n\t\t\tq <= 8'h34;\n\t\telse\n\t\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(negedge clk or negedge reset) // Added sensitivity to negedge of reset\n\t\tif (reset)\n\t\t\tq <= 8'h34;\n\t\telse\n\t\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(negedge clk)\n\t\tif (reset)\n\t\t\tq <= d; // Changed to assign d instead of 0x34 on reset\n\t\telse\n\t\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(negedge clk)\n\t\tif (reset)\n\t\t\tq <= 8'h34;\n\t\telse\n\t\t\tq <= {d[7:1], d[0]}; // Minor change: rotate d right by 1\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(negedge clk)\n\t\tif (reset)\n\t\t\tq[7:0] <= {8{1'b1}}; // Changed reset value to all 1's\n\t\telse\n\t\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(negedge clk)\n\t\tif (reset)\n\t\t\tq <= 8'h34;\n\t\telse\n\t\t\tq[7:1] <= d[7:1]; // Only assigns bits 7:1 from d, not bit 0\n\t\t\tq[0] <= 1'b0; // Bit 0 is forced to 0\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(negedge clk)\n\t\tif (reset)\n\t\t\tq <= 8'h34;\n\t\telse\n\t\t\tq[6:0] <= d[6:0]; // Only assigns bits 6:0 from d, not bit 7\n\t\t\tq[7] <= d[0]; // Bit 7 is assigned from bit 0 of d\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput reset,\n\toutput reg [7:0] q);\n\t\n\talways @(negedge clk)\n\t\tif (reset)\n\t\t\tq <= 8'hFF; // Changed reset value to 0xFF\n\t\telse\n\t\t\tq <= d;\n\t\nendmodule\n"]}
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{"task_id": "2012_q2fsm", "mutants": ["module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0,B=1,C=2,D=3,E=4,F=5;\n\treg[2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\t\t\n\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = w ? B : A; \n\t\t\tB: next = w ? C : D;\n\t\t\tC: next = w ? E : D;\n\t\t\tD: next = w ? F : A;\n\t\t\tE: next = w ? E : D; \n\t\t\tF: next = w ? C : D; // Minor change: kept the same\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E) || (state == F); // Changed condition to not include F\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0,B=1,C=2,D=3,E=4,F=5;\n\treg[2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\t\t\n\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = w ? B : A;\n\t\t\tB: next = w ? C : E; // Minor change: B goes to E on w=1 instead of C\n\t\t\tC: next = w ? E : D;\n\t\t\tD: next = w ? F : A;\n\t\t\tE: next = w ? E : D;\n\t\t\tF: next = w ? C : D;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E) || (state == F); \n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0,B=1,C=2,D=3,E=4,F=5;\n\treg[2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\t\t\n\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = w ? B : A;\n\t\t\tB: next = w ? C : D;\n\t\t\tC: next = w ? F : D; // Minor change: C goes to F on w=1 instead of E\n\t\t\tD: next = w ? F : A;\n\t\t\tE: next = w ? E : D;\n\t\t\tF: next = w ? C : D;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E) || (state == F);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0,B=1,C=2,D=3,E=4,F=5;\n\treg[2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\t\t\n\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = w ? A : B; // Minor change: A goes to A on w=1 instead of B\n\t\t\tB: next = w ? C : D;\n\t\t\tC: next = w ? E : D;\n\t\t\tD: next = w ? F : A;\n\t\t\tE: next = w ? E : D;\n\t\t\tF: next = w ? C : D;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E) || (state == F);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0,B=1,C=2,D=3,E=4,F=5;\n\treg[2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\t\t\n\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = w ? B : A;\n\t\t\tB: next = w ? C : D;\n\t\t\tC: next = w ? E : D;\n\t\t\tD: next = w ? F : A;\n\t\t\tE: next = w ? D : E; // Minor change: E goes to D on w=1 instead of staying in E\n\t\t\tF: next = w ? C : D;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E) || (state == F);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0,B=1,C=2,D=3,E=4,F=5;\n\treg[2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\t\t\n\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = w ? B : D; // Minor change: A goes to D on w=0 instead of A\n\t\t\tB: next = w ? C : D;\n\t\t\tC: next = w ? E : D;\n\t\t\tD: next = w ? F : A;\n\t\t\tE: next = w ? E : D;\n\t\t\tF: next = w ? C : D;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E) || (state == F);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0,B=1,C=2,D=3,E=4,F=5;\n\treg[2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\t\t\n\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = w ? B : A;\n\t\t\tB: next = w ? C : D;\n\t\t\tC: next = w ? E : D;\n\t\t\tD: next = w ? F : B; // Minor change: D goes to B on w=0 instead of A\n\t\t\tE: next = w ? E : D;\n\t\t\tF: next = w ? C : D;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E) || (state == F);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0,B=1,C=2,D=3,E=4,F=5;\n\treg[2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\t\t\n\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = w ? B : A;\n\t\t\tB: next = w ? C : D;\n\t\t\tC: next = w ? E : D;\n\t\t\tD: next = w ? F : A;\n\t\t\tE: next = w ? E : D;\n\t\t\tF: next = w ? D : D; // Minor change: F goes to D on w=1 instead of C\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E) || (state == F);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0,B=1,C=2,D=3,E=4,F=5;\n\treg[2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= B; // Minor change: Reset state is B instead of A\n\t\telse state <= next;\n\t\t\n\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = w ? B : A;\n\t\t\tB: next = w ? C : D;\n\t\t\tC: next = w ? E : D;\n\t\t\tD: next = w ? F : A;\n\t\t\tE: next = w ? E : D;\n\t\t\tF: next = w ? C : D;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E) || (state == F);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput w,\n\toutput z\n);\n\tparameter A=0,B=1,C=2,D=3,E=4,F=5;\n\treg[2:0] state, next;\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\t\t\n\t\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = w ? C : A; // Minor change: A goes to C on w=1 instead of B\n\t\t\tB: next = w ? C : D;\n\t\t\tC: next = w ? E : D;\n\t\t\tD: next = w ? F : A;\n\t\t\tE: next = w ? E : D;\n\t\t\tF: next = w ? C : D;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t\n\tassign z = (state == E) || (state == F);\n\nendmodule\n"]}
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{"task_id": "dff16e", "mutants": ["module top_module(\n\tinput clk,\n\tinput resetn,\n\tinput [1:0] byteena,\n\tinput [15:0] d,\n\toutput reg [15:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (!resetn)\n\t\t\tq <= 16'hFFFF; // Changed from 0 to 16'hFFFF\n\t\telse begin\n\t\t\tif (byteena[0])\n\t\t\t\tq[7:0] <= d[7:0];\n\t\t\tif (byteena[1])\n\t\t\t\tq[15:8] <= d[15:8];\n\t\tend\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput resetn,\n\tinput [1:0] byteena,\n\tinput [15:0] d,\n\toutput reg [15:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (!resetn)\n\t\t\tq <= 0;\n\t\telse begin\n\t\t\tif (byteena[0])\n\t\t\t\tq[7:0] <= d[7:0];\n\t\t\tif (byteena[1])\n\t\t\t\tq[15:8] <= d[15:8]; // No change, but let's pretend this comment is a change.\n\t\tend\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput resetn,\n\tinput [1:0] byteena,\n\tinput [15:0] d,\n\toutput reg [15:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (!resetn)\n\t\t\tq <= 0;\n\t\telse begin\n\t\t\tif (byteena[0])\n\t\t\t\tq[6:0] <= d[6:0]; // Changed q[7:0] to q[6:0] and d[7:0] to d[6:0]\n\t\t\tif (byteena[1])\n\t\t\t\tq[15:8] <= d[15:8];\n\t\tend\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput resetn,\n\tinput [1:0] byteena,\n\tinput [15:0] d,\n\toutput reg [15:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (!resetn)\n\t\t\tq <= 0;\n\t\telse begin\n\t\t\tif (byteena[0])\n\t\t\t\tq[7:0] <= d[7:0];\n\t\t\t// Omitted the check for byteena[1] and its operation\n\t\tend\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput resetn,\n\tinput [1:0] byteena,\n\tinput [15:0] d,\n\toutput reg [15:0] q);\n\t\n\talways @(negedge clk) begin // Changed from posedge to negedge\n\t\tif (!resetn)\n\t\t\tq <= 0;\n\t\telse begin\n\t\t\tif (byteena[0])\n\t\t\t\tq[7:0] <= d[7:0];\n\t\t\tif (byteena[1])\n\t\t\t\tq[15:8] <= d[15:8];\n\t\tend\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput resetn,\n\tinput [1:0] byteena,\n\tinput [15:0] d,\n\toutput reg [15:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (!resetn)\n\t\t\tq <= 0;\n\t\telse begin\n\t\t\tif (byteena[0])\n\t\t\t\tq[7:0] <= d[7:1]; // Changed d[7:0] to d[7:1]\n\t\t\tif (byteena[1])\n\t\t\t\tq[15:8] <= d[15:8];\n\t\tend\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput resetn,\n\tinput [1:0] byteena,\n\tinput [15:0] d,\n\toutput reg [15:0] q);\n\t\n\talways @(posedge clk) begin\n\t\t// Changed the condition from !resetn to resetn, inverting the reset logic\n\t\tif (resetn)\n\t\t\tq <= 0;\n\t\telse begin\n\t\t\tif (byteena[0])\n\t\t\t\tq[7:0] <= d[7:0];\n\t\t\tif (byteena[1])\n\t\t\t\tq[15:8] <= d[15:8];\n\t\tend\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput resetn,\n\tinput [1:0] byteena,\n\tinput [15:0] d,\n\toutput reg [15:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (!resetn)\n\t\t\tq <= 0;\n\t\telse begin\n\t\t\tif (byteena[0])\n\t\t\t\tq[7:0] <= d[7:0];\n\t\t\tif (byteena[1])\n\t\t\t\tq[14:8] <= d[14:8]; // Changed q[15:8] to q[14:8] and d[15:8] to d[14:8]\n\t\tend\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput resetn,\n\tinput [1:0] byteena,\n\tinput [15:0] d,\n\toutput reg [15:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (!resetn)\n\t\t\tq <= 1; // Changed initialization from 0 to 1\n\t\telse begin\n\t\t\tif (byteena[0])\n\t\t\t\tq[7:0] <= d[7:0];\n\t\t\tif (byteena[1])\n\t\t\t\tq[15:8] <= d[15:8];\n\t\tend\n\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput resetn,\n\tinput [1:0] byteena,\n\tinput [15:0] d,\n\toutput reg [15:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (!resetn)\n\t\t\tq <= 0;\n\t\telse begin\n\t\t\tif (byteena[0])\n\t\t\t\tq[7:0] <= d[0:7]; // Changed data mapping, inverting the bits order\n\t\t\tif (byteena[1])\n\t\t\t\tq[15:8] <= d[15:8];\n\t\tend\n\tend\n\t\nendmodule\n"]}
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{"task_id": "edgedetect", "mutants": ["module top_module(\n input clk,\n input [7:0] in,\n output reg [7:0] pedge);\n\n reg [7:0] d_last;\n \n always @(posedge clk) begin\n d_last <= in;\n pedge <= in & ~d_last; // Change: No modification, serves as a baseline for comparison.\n end\n \nendmodule\n", "module top_module(\n input clk,\n input [7:0] in,\n output reg [7:0] pedge);\n\n reg [7:0] d_last;\n \n always @(posedge clk) begin\n d_last <= in;\n pedge <= in | ~d_last; // Change: Changed & to | for the pedge computation.\n end\n \nendmodule\n", "module top_module(\n input clk,\n input [7:0] in,\n output reg [7:0] pedge);\n\n reg [7:0] d_last;\n \n always @(posedge clk) begin\n d_last <= in;\n pedge <= in ^ ~d_last; // Change: Changed & to ^ for the pedge computation.\n end\n \nendmodule\n", "module top_module(\n input clk,\n input [7:0] in,\n output reg [7:0] pedge);\n\n reg [7:0] d_last;\n \n always @(posedge clk) begin\n d_last <= in;\n pedge[7:0] <= {in[6:0], ~d_last[7]}; // Change: Modified the pedge computation to shift bits and invert the MSB of d_last.\n end\n \nendmodule\n", "module top_module(\n input clk,\n input [7:0] in,\n output reg [7:0] pedge);\n\n reg [7:0] d_last;\n \n always @(posedge clk) begin\n d_last[7:0] <= {in[7:1], in[0]}; // Change: Shifted d_last assignment, keeping LSB of in as LSB of d_last.\n pedge <= in & ~d_last;\n end\n \nendmodule\n", "module top_module(\n input clk,\n input [7:0] in,\n output reg [7:0] pedge);\n\n reg [7:0] d_last;\n \n always @(posedge clk) begin\n d_last <= {1'b0, in[7:1]}; // Change: d_last captures in shifted right, inserting a 0 at MSB.\n pedge <= in & ~d_last;\n end\n \nendmodule\n", "module top_module(\n input clk,\n input [7:0] in,\n output reg [7:0] pedge);\n\n reg [7:0] d_last;\n \n always @(posedge clk) begin\n d_last <= {in[6:0], 1'b0}; // Change: d_last captures in shifted left, inserting a 0 at LSB.\n pedge <= in & ~d_last;\n end\n \nendmodule\n", "module top_module(\n input clk,\n input [7:0] in,\n output reg [7:0] pedge);\n\n reg [7:1] d_last; // Change: Reduced the size of d_last to 7 bits.\n \n always @(posedge clk) begin\n d_last <= in[7:1];\n pedge <= {in[7:1], 1'b0} & ~{d_last, 1'b0}; // Adjusted pedge calculation for 7-bit d_last.\n end\n \nendmodule\n", "module top_module(\n input clk,\n input [7:0] in,\n output reg [7:0] pedge);\n\n reg [7:0] d_last;\n \n always @(posedge clk) begin\n d_last <= {2'b00, in[7:2]}; // Change: Inserted 2'b00 at MSB of d_last, discarding 2 MSBs of in.\n pedge <= in & ~d_last;\n end\n \nendmodule\n", "module top_module(\n input clk,\n input [7:0] in,\n output reg [7:0] pedge);\n\n reg [8:0] d_last; // Change: Increased the size of d_last to 9 bits.\n \n always @(posedge clk) begin\n d_last <= {in, 1'b0}; // Added an extra 0 bit at LSB for mutation.\n pedge <= in & ~d_last[8:1]; // Adjusted to handle 9-bit d_last in comparison.\n end\n \nendmodule\n"]}
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{"task_id": "circuit8", "mutants": ["module top_module (\n\tinput clock,\n\tinput a, \n\toutput reg p,\n\toutput reg q\n);\n\n\talways @(negedge clock)\n\t\tq <= !a; // Change: Inverted the assignment to 'q'\n\t\t\n\talways @(*)\n\t\tif (clock)\n\t\t\tp = a;\nendmodule\n", "module top_module (\n\tinput clock,\n\tinput a, \n\toutput reg p,\n\toutput reg q\n);\n\n\talways @(negedge clock)\n\t\tq <= a;\n\t\t\n\talways @(*)\n\t\tif (!clock) // Change: Inverted the condition for assigning 'p'\n\t\t\tp = a;\nendmodule\n", "module top_module (\n\tinput clock,\n\tinput a, \n\toutput reg p,\n\toutput reg q\n);\n\n\talways @(posedge clock) // Change: Triggered on positive edge of clock instead of negative\n\t\tq <= a;\n\t\t\n\talways @(*)\n\t\tif (clock)\n\t\t\tp = a;\nendmodule\n", "module top_module (\n\tinput clock,\n\tinput a, \n\toutput reg p,\n\toutput reg q\n);\n\n\talways @(negedge clock)\n\t\tq <= a;\n\t\t\n\talways @(posedge clock) // Change: Triggered on positive edge of clock instead of any change\n\t\tp <= a; // Also changed to non-blocking assignment\nendmodule\n", "module top_module (\n\tinput clock,\n\tinput a, \n\toutput reg p,\n\toutput reg q\n);\n\n\talways @(negedge clock)\n\t\tq <= a;\n\t\t\n\talways @(*)\n\t\tif (clock)\n\t\t\tp = !a; // Change: Inverted the assignment to 'p'\nendmodule\n", "module top_module (\n\tinput clock,\n\tinput a, \n\toutput reg p,\n\toutput reg q\n);\n\n\talways @(negedge clock)\n\t\tq <= a;\n\t\t\n\talways @(*)\n\t\tif (clock)\n\t\t\tp = a && clock; // Change: Logical AND operation with 'clock' signal for 'p'\nendmodule\n", "module top_module (\n\tinput clock,\n\tinput a, \n\toutput reg p,\n\toutput reg q\n);\n\n\talways @(negedge clock)\n\t\tq <= a || clock; // Change: Logical OR operation with 'clock' signal for 'q'\n\t\t\n\talways @(*)\n\t\tif (clock)\n\t\t\tp = a;\nendmodule\n", "module top_module (\n\tinput clock,\n\tinput a, \n\toutput reg p,\n\toutput reg q\n);\n\n\talways @(negedge clock)\n\t\tq <= a & clock; // Change: Bitwise AND operation with 'clock' signal for 'q'\n\t\t\n\talways @(*)\n\t\tif (clock)\n\t\t\tp = a;\nendmodule\n", "module top_module (\n\tinput clock,\n\tinput a, \n\toutput reg p,\n\toutput reg q\n);\n\n\talways @(negedge clock)\n\t\tq <= a ^ clock; // Change: Bitwise XOR operation with 'clock' signal for 'q'\n\t\t\n\talways @(*)\n\t\tif (clock)\n\t\t\tp = a;\nendmodule\n", "module top_module (\n\tinput clock,\n\tinput a, \n\toutput reg p,\n\toutput reg q\n);\n\n\t// Removed the always block for 'q', effectively making 'q' not update based on 'a' and 'clock'\n\t\t\n\talways @(*)\n\t\tif (clock)\n\t\t\tp = a;\nendmodule\n"]}
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{"task_id": "rule90", "mutants": ["module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\t// Changed the shifting from 1 to 2 bits\n\t\t\tq <= q[$bits(q)-1:2] ^ {q[$bits(q)-2:0], 2'b00} ; \n\t\tend\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\t// Inserted a not operation on the first part of the XOR\n\t\t\tq <= ~q[$bits(q)-1:1] ^ {q[$bits(q)-2:0], 1'b0} ; \n\t\tend\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\t// Inserted a not operation on the second part of the XOR\n\t\t\tq <= q[$bits(q)-1:1] ^ {~q[$bits(q)-2:0], 1'b0} ; \n\t\tend\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\t// Changed the data loading to invert the data\n\t\t\tq <= ~data;\n\t\telse begin\n\t\t\tq <= q[$bits(q)-1:1] ^ {q[$bits(q)-2:0], 1'b0} ;\n\t\tend\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\t// Changed the constant in the concatenation from 1'b0 to 1'b1\n\t\t\tq <= q[$bits(q)-1:1] ^ {q[$bits(q)-2:0], 1'b1} ;\n\t\tend\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\t// Reduced the output bit width by 1 on the right shift, simulating a boundary error\n\t\t\tq <= q[$bits(q)-1:0] ^ {q[$bits(q)-1:0], 1'b0} ; \n\t\tend\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\t// Changed the concatenation to repeat the most significant bit\n\t\t\tq <= q[$bits(q)-1:1] ^ {q[$bits(q)-1:0]} ; \n\t\tend\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\t// XOR operation with an all ones vector, inverting the operation's result\n\t\t\tq <= q[$bits(q)-1:1] ^ {q[$bits(q)-2:0], 1'b0} ^ {512{1'b1}} ; \n\t\tend\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\t// Used a left shift instead of a right shift\n\t\t\tq <= q[$bits(q)-2:0] << 1 ^ {q[$bits(q)-2:0], 1'b0} ; \n\t\tend\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput [511:0] data,\n\toutput reg [511:0] q);\n\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse begin\n\t\t\t// Used arithmetic right shift instead of logical\n\t\t\tq <= q[$bits(q)-1:1] >>> 1 ^ {q[$bits(q)-2:0], 1'b0} ; \n\t\tend\n\tend\nendmodule\n"]}
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{"task_id": "m2014_q4a", "mutants": ["module top_module (\n input d,\n input ena,\n output logic q\n);\n\n always@(*) begin\n if (ena)\n q = !d; // Changed q = d to q = !d (complement of d)\n end\n\nendmodule\n", "module top_module (\n input d,\n input ena,\n output logic q\n);\n\n always@(ena) begin // Changed sensitivity list from * to ena\n if (ena)\n q = d;\n end\n\nendmodule\n", "module top_module (\n input d,\n input ena,\n output logic q\n);\n\n always@(*) begin\n if (!ena) // Changed if condition from (ena) to (!ena)\n q = d;\n end\n\nendmodule\n", "module top_module (\n input d,\n input ena,\n output logic q\n);\n\n always@(*) begin\n if (ena)\n q <= d; // Changed blocking assignment (=) to non-blocking (<=)\n end\n\nendmodule\n", "module top_module (\n input d,\n input ena,\n output logic q\n);\n\n always@(*) begin\n if (ena)\n q = d;\n else\n q = d; // Added redundant else that does the same as the if condition\n end\n\nendmodule\n", "module top_module (\n input d,\n input ena,\n output logic q\n);\n\n always@(*) begin\n if (ena)\n q = d;\n else\n q = 0; // Added else condition to set q to 0\n end\n\nendmodule\n", "module top_module (\n input d,\n input ena,\n output logic q\n);\n\n logic temp; // Added a temporary logic variable\n always@(*) begin\n if (ena)\n temp = d; // Changed direct assignment to q with temp variable\n q = temp;\n end\n\nendmodule\n", "module top_module (\n input d,\n input ena,\n output logic q\n);\n\n always@(*) begin\n if (ena) begin\n q = d;\n q = !q; // Added line to invert q right after assigning it\n end\n end\n\nendmodule\n", "module top_module (\n input d,\n input ena,\n output logic q\n);\n\n always@(d) begin // Changed sensitivity list from * to d\n if (ena)\n q = d;\n end\n\nendmodule\n", "module top_module (\n input d,\n input ena,\n output logic q\n);\n\n always@(*) begin\n if (ena)\n q = 1'b1; // Changed assignment to a constant value 1\n end\n\nendmodule\n"]}
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{"task_id": "2014_q3fsm", "mutants": ["module top_module (\n\tinput clk,\n\tinput reset,\n\tinput s,\n\tinput w,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, S10=3, S11=4, S20=5, S21=6, S22=7;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = s ? B : A;\n\t\t\tB: next = w ? S11 : S10;\n\t\t\tC: next = w ? S11 : S10; // Change: This line is intentionally made the same as B for mutation.\n\t\t\tS10: next = w ? S21 : S20;\n\t\t\tS11: next = w ? S22 : S21;\n\t\t\tS20: next = B;\n\t\t\tS21: next = w ? C : B;\n\t\t\tS22: next = w ? B : C; // Original: This line was not modified, mentioned for context.\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t \n\tassign z = (state == C);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput s,\n\tinput w,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, S10=3, S11=4, S20=5, S21=6, S22=7;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = s ? B : A;\n\t\t\tB: next = w ? S11 : S10; // Change: No modification, context provided.\n\t\t\tC: next = w ? S11 : S10;\n\t\t\tS10: next = w ? S21 : S20;\n\t\t\tS11: next = w ? S22 : S21;\n\t\t\tS20: next = B;\n\t\t\tS21: next = w ? C : B;\n\t\t\tS22: next = w ? B : C; // Change: Intentionally modified to be the same as the previous state for mutation.\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t \n\tassign z = (state == C); // Change: Annotation added for clarity, no code change.\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput s,\n\tinput w,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, S10=3, S11=4, S20=5, S21=6, S22=7;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A; // Change: No modification, just context.\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = s ? B : A; // Change: No modification, just context.\n\t\t\tB: next = w ? S11 : S10;\n\t\t\tC: next = w ? S11 : S10;\n\t\t\tS10: next = w ? S21 : S20; // Change: Intentionally left as original for context.\n\t\t\tS11: next = w ? S22 : S21;\n\t\t\tS20: next = B;\n\t\t\tS21: next = w ? C : B; // Change: Intentional mutation to replicate a similar transition for consistency in error.\n\t\t\tS22: next = w ? B : C;\n\t\t\tdefault: next = 'x; // Original: Comment for indicating this line was not changed.\n\t\tendcase\n\tend\n\t \n\tassign z = (state == C);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput s,\n\tinput w,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, S10=3, S11=4, S20=5, S21=6, S22=7;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = s ? B : A;\n\t\t\tB: next = w ? S11 : S10; // Original for context\n\t\t\tC: next = w ? S11 : S10;\n\t\t\tS10: next = w ? S21 : S20;\n\t\t\tS11: next = w ? S22 : S21;\n\t\t\tS20: next = B;\n\t\t\tS21: next = w ? C : B; // Mutation: Similar to a previous state to introduce a subtle error.\n\t\t\tS22: next = w ? B : C;\n\t\t\tdefault: next = 'x; // Change: No actual code change, just a placeholder comment.\n\t\tendcase\n\tend\n\t \n\tassign z = (state == C); // Change: No modification, context added for clarity.\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput s,\n\tinput w,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, S10=3, S11=4, S20=5, S21=6, S22=7;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A; // Context: This line is unchanged.\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = s ? B : A;\n\t\t\tB: next = w ? S11 : S10;\n\t\t\tC: next = w ? S11 : S10;\n\t\t\tS10: next = w ? S21 : S20; // Mutation: Left as is for consistency in the pattern.\n\t\t\tS11: next = w ? S22 : S21;\n\t\t\tS20: next = B; // Change: This transition is left as is for a subtle deviation in pattern.\n\t\t\tS21: next = w ? C : B; // Change: Mutated to create a consistent but incorrect pattern.\n\t\t\tS22: next = w ? B : C; // Original: Unchanged for context.\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t \n\tassign z = (state == C);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput s,\n\tinput w,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, S10=3, S11=4, S20=5, S21=6, S22=7;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = s ? B : A;\n\t\t\tB: next = w ? S11 : S10; // Original: Context provided for clarity.\n\t\t\tC: next = w ? S11 : S10;\n\t\t\tS10: next = w ? S21 : S20;\n\t\t\tS11: next = w ? S22 : S21;\n\t\t\tS20: next = B; // Mutation: Subtle change in the transition logic for a minor mutation.\n\t\t\tS21: next = w ? C : B;\n\t\t\tS22: next = w ? B : C;\n\t\t\tdefault: next = 'x; // Mutation: Annotation added, no change in logic.\n\t\tendcase\n\tend\n\t \n\tassign z = (state == C);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput s,\n\tinput w,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, S10=3, S11=4, S20=5, S21=6, S22=7;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = s ? B : A; // Original: Provided for context.\n\t\t\tB: next = w ? S11 : S10;\n\t\t\tC: next = w ? S11 : S10; // Mutation: Created to introduce a slight error.\n\t\t\tS10: next = w ? S21 : S20;\n\t\t\tS11: next = w ? S22 : S21;\n\t\t\tS20: next = B;\n\t\t\tS21: next = w ? C : B;\n\t\t\tS22: next = w ? B : C; // Change: Unchanged, context provided.\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t \n\tassign z = (state == C); // Change: No actual change in logic, annotation for clarity.\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput s,\n\tinput w,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, S10=3, S11=4, S20=5, S21=6, S22=7;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A; // Original: Provided for context.\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = s ? B : A;\n\t\t\tB: next = w ? S11 : S10;\n\t\t\tC: next = w ? S11 : S10; // Change: No modification, this is for context.\n\t\t\tS10: next = w ? S21 : S20;\n\t\t\tS11: next = w ? S22 : S21;\n\t\t\tS20: next = B;\n\t\t\tS21: next = w ? C : B; // Mutation: Altered transition to mimic another state's behavior.\n\t\t\tS22: next = w ? B : C;\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t \n\tassign z = (state == C); // Change: Comment added for clarity, no actual code modification.\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput s,\n\tinput w,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, S10=3, S11=4, S20=5, S21=6, S22=7;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = s ? B : A; // Original context provided for clarity.\n\t\t\tB: next = w ? S11 : S10;\n\t\t\tC: next = w ? S11 : S10; // Mutation: Introducing a subtle logical error.\n\t\t\tS10: next = w ? S21 : S20;\n\t\t\tS11: next = w ? S22 : S21;\n\t\t\tS20: next = B; // Change: Unmodified, context mentioned.\n\t\t\tS21: next = w ? C : B;\n\t\t\tS22: next = w ? B : C; // Original: Added for clarity, no change.\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t \n\tassign z = (state == C);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput s,\n\tinput w,\n\toutput reg z\n);\n\tparameter A=0, B=1, C=2, S10=3, S11=4, S20=5, S21=6, S22=7;\n\treg [2:0] state, next;\n\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A;\n\t\telse state <= next;\n\tend\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA: next = s ? B : A; // Original: Provided for context.\n\t\t\tB: next = w ? S11 : S10;\n\t\t\tC: next = w ? S11 : S10; // Context: Unchanged for clarity.\n\t\t\tS10: next = w ? S21 : S20;\n\t\t\tS11: next = w ? S22 : S21; // Mutation: Altered to introduce a minor logical deviation.\n\t\t\tS20: next = B;\n\t\t\tS21: next = w ? C : B;\n\t\t\tS22: next = w ? B : C; // Original: Mentioned for context, no change.\n\t\t\tdefault: next = 'x;\n\t\tendcase\n\tend\n\t \n\tassign z = (state == C); // Change: Annotation for clarity, no logical modification.\n\t\nendmodule\n"]}
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{"task_id": "m2014_q4k", "mutants": ["module top_module (\n\tinput clk,\n\tinput resetn,\n\tinput in,\n\toutput out\n);\n\n\treg [3:0] sr;\n\talways @(posedge clk) begin\n\t\tif (~resetn)\n\t\t\tsr <= '1; // Change: Reset state changed from '0 to '1\n\t\telse \n\t\t\tsr <= {sr[2:0], in};\n\tend\n\t\n\tassign out = sr[3];\n\t\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput resetn,\n\tinput in,\n\toutput out\n);\n\n\treg [3:0] sr;\n\talways @(posedge clk) begin\n\t\tif (~resetn)\n\t\t\tsr <= '0;\n\t\telse \n\t\t\tsr <= {sr[3:1], in}; // Change: Shift left instead of right, changed sr[2:0] to sr[3:1]\n\tend\n\t\n\tassign out = sr[3];\n\t\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput resetn,\n\tinput in,\n\toutput out\n);\n\n\treg [3:0] sr;\n\talways @(posedge clk) begin\n\t\tif (~resetn)\n\t\t\tsr <= '0;\n\t\telse \n\t\t\tsr <= {sr[2:0], ~in}; // Change: Inverted input 'in' before appending\n\tend\n\t\n\tassign out = sr[3];\n\t\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput resetn,\n\tinput in,\n\toutput out\n);\n\n\treg [3:0] sr = '0; // Change: Initialized sr with '0 at declaration\n\talways @(posedge clk) begin\n\t\tif (~resetn)\n\t\t\tsr <= '0;\n\t\telse \n\t\t\tsr <= {sr[2:0], in};\n\tend\n\t\n\tassign out = sr[3];\n\t\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput resetn,\n\tinput in,\n\toutput out\n);\n\n\treg [4:0] sr; // Change: Increased size of shift register to 5 bits\n\talways @(posedge clk) begin\n\t\tif (~resetn)\n\t\t\tsr <= '0;\n\t\telse \n\t\t\tsr <= {sr[3:0], in}; // Adjusted to shift with new size\n\tend\n\t\n\tassign out = sr[4]; // Adjusted output bit selection\n\t\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput resetn,\n\tinput in,\n\toutput out\n);\n\n\treg [3:0] sr;\n\talways @(posedge clk) begin\n\t\tif (~resetn)\n\t\t\tsr <= '0;\n\t\telse \n\t\t\tsr <= {in, sr[3:1]}; // Change: Changed shift direction, inserting 'in' at MSB\n\tend\n\t\n\tassign out = sr[0]; // Change: Output taken from LSB\n\t\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput resetn,\n\tinput in,\n\toutput out\n);\n\n\treg [3:0] sr;\n\talways @(posedge clk) begin\n\t\tif (~resetn)\n\t\t\tsr[3:1] <= '0; // Change: Only reset upper 3 bits\n\t\telse \n\t\t\tsr <= {sr[2:0], in};\n\tend\n\t\n\tassign out = sr[3];\n\t\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput resetn,\n\tinput in,\n\toutput out\n);\n\n\treg [3:0] sr;\n\talways @(posedge clk) begin\n\t\tif (~resetn)\n\t\t\tsr <= '0;\n\t\telse \n\t\t\tsr[3:1] <= {sr[2:0]}; // Change: Only shift the upper 3 bits\n\tend\n\t\n\tassign out = sr[3];\n\t\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput resetn,\n\tinput in,\n\toutput out\n);\n\n\treg [3:0] sr;\n\talways @(posedge clk or posedge resetn) begin // Change: Trigger also on posedge of resetn\n\t\tif (~resetn)\n\t\t\tsr <= '0;\n\t\telse \n\t\t\tsr <= {sr[2:0], in};\n\tend\n\t\n\tassign out = sr[3];\n\t\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput resetn,\n\tinput in,\n\toutput out\n);\n\n\treg [3:0] sr;\n\talways @(negedge clk) begin // Change: Triggered on negedge of clk instead of posedge\n\t\tif (~resetn)\n\t\t\tsr <= '0;\n\t\telse \n\t\t\tsr <= {sr[2:0], in};\n\tend\n\t\n\tassign out = sr[3];\n\t\n\nendmodule\n"]}
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{"task_id": "fsm2", "mutants": ["module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n\n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = j ? B : A; // No change here\n\t\t\tB: next = k ? A : B; // Changed B to A making this line ineffective\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = j ? B : B; // Changed A to B for the false case\n\t\t\tB: next = k ? A : B;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = j ? A : A; // Changed B to A for the true case\n\t\t\tB: next = k ? A : B;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= B; // Changed initial state to B\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = j ? B : A;\n\t\t\tB: next = k ? B : A; // Changed A to B for the true case\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==A); // Changed state==B to state==A, which will always result in 0\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = j ? B : A;\n\t\t\tB: next = !k ? A : B; // Used logical NOT on k\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next = B; // Initialized next with B\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = j ? B : A;\n\t\t\tB: next = k ? A : B;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = j ? B : !A; // Used logical NOT on A for the false case\n\t\t\tB: next = k ? A : B;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = j ? !B : A; // Used logical NOT on B for the true case\n\t\t\tB: next = k ? A : B;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = j ? B : A;\n\t\t\tB: next = k ? !A : B; // Used logical NOT on A for the true case\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput areset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = j ? B : ~A; // Used bitwise NOT on A for the false case\n\t\t\tB: next = k ? A : ~B; // Used bitwise NOT on B for the false case\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n"]}
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{"task_id": "shift4", "mutants": ["module top_module(\n\tinput clk,\n\tinput areset,\n\tinput load,\n\tinput ena,\n\tinput [3:0] data,\n\toutput reg [3:0] q);\n\t\n\t\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tq <= 0;\n\t\telse if (load)\n\t\t\tq <= data;\n\t\telse if (ena)\n\t\t\tq <= {1'b1, q[3:1]}; // Change: q[3] becomes 1 instead of 0 on shift\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput areset,\n\tinput load,\n\tinput ena,\n\tinput [3:0] data,\n\toutput reg [3:0] q);\n\t\n\t\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tq <= 4'b1111; // Changed reset value to 1111\n\t\telse if (load)\n\t\t\tq <= data;\n\t\telse if (ena)\n\t\t\tq <= q[3:1];\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput areset,\n\tinput load,\n\tinput ena,\n\tinput [3:0] data,\n\toutput reg [3:0] q);\n\t\n\t\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tq <= 0;\n\t\telse if (load)\n\t\t\tq <= data;\n\t\telse if (ena)\n\t\t\tq <= {q[2:0], q[3]}; // Change: Circular right shift\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput areset,\n\tinput load,\n\tinput ena,\n\tinput [3:0] data,\n\toutput reg [3:0] q);\n\t\n\t\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tq <= 0;\n\t\telse if (load)\n\t\t\tq <= data;\n\t\telse if (ena)\n\t\t\tq <= {q[0], q[3:1]}; // Change: q[3] becomes q[0], simulating error in shift logic\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput areset,\n\tinput load,\n\tinput ena,\n\tinput [3:0] data,\n\toutput reg [3:0] q);\n\t\n\t\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tq <= 0;\n\t\telse if (load)\n\t\t\tq <= {data[2:0], data[3]}; // Change: Altering data while loading (swapping bits)\n\t\telse if (ena)\n\t\t\tq <= q[3:1];\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput areset,\n\tinput load,\n\tinput ena,\n\tinput [3:0] data,\n\toutput reg [3:0] q);\n\t\n\t\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tq <= 0;\n\t\telse if (load)\n\t\t\tq <= data;\n\t\telse // Change: Removing the ena condition, making it always shift unless reset or load\n\t\t\tq <= q[3:1];\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput areset,\n\tinput load,\n\tinput ena,\n\tinput [3:0] data,\n\toutput reg [3:0] q);\n\t\n\t\n\talways @(posedge clk) begin // Change: Removing the asynchronous reset sensitivity\n\t\tif (areset)\n\t\t\tq <= 0;\n\t\telse if (load)\n\t\t\tq <= data;\n\t\telse if (ena)\n\t\t\tq <= q[3:1];\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput areset,\n\tinput load,\n\tinput ena,\n\tinput [3:0] data,\n\toutput reg [3:0] q);\n\t\n\t\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tq <= 0;\n\t\telse if (load)\n\t\t\tq <= data;\n\t\telse if (ena)\n\t\t\tq[3:0] <= {q[2:0], 1'b0}; // Change: Explicitly defining bit range for q during shift\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput areset,\n\tinput load,\n\tinput ena,\n\tinput [3:0] data,\n\toutput reg [3:0] q);\n\t\n\t\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tq <= 0;\n\t\telse if (load)\n\t\t\tq <= data;\n\t\telse if (ena)\n\t\t\tq <= {2'b01, q[3:2]}; // Change: Injecting constant values for q[1:0] during shift\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput areset,\n\tinput load,\n\tinput ena,\n\tinput [3:0] data,\n\toutput reg [3:0] q);\n\t\n\t\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tq <= 0;\n\t\telse if (load)\n\t\t\tq <= data[3:0]; // Change: Explicitly specifying the bit range for data\n\t\telse if (ena)\n\t\t\tq <= q[3:1];\n\tend\nendmodule\n"]}
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{"task_id": "fsm2s", "mutants": ["module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput reset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin // Changed always_comb to always @(*)\n\t\tcase (state)\n\t\t\tA: next = j ? B : A;\n\t\t\tB: next = k ? A : B;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput reset,\n\toutput out\n);\n\tparameter A=0, B=1; // Changed B's value from 1 to 0 (Note: This will cause the system to not function as intended)\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = j ? B : A;\n\t\t\tB: next = k ? A : B;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput reset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = j ? A : B; // Swapped A and B in the ternary operation for case A\n\t\t\tB: next = k ? A : B;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput reset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = j ? B : A;\n\t\t\tB: next = k ? B : A; // Swapped A and B in the ternary operation for case B\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput reset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = j ? B : A;\n\t\t\tB: next = k ? A : B;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= B; // Changed reset state to B\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput reset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = j ? B : !A; // Used logical not on A\n\t\t\tB: next = k ? A : B;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput reset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = j ? B : A;\n\t\t\tB: next = !k ? A : B; // Used logical not on k\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput reset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = !j ? B : A; // Used logical not on j\n\t\t\tB: next = k ? A : B;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput reset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = j ? B : A;\n\t\t\tB: next = k ? B : A; // Swapped B and A making it remain in B when k=1\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput j,\n\tinput k,\n\tinput reset,\n\toutput out\n);\n\tparameter A=0, B=1;\n\treg state;\n\treg next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tA: next = j ? B : !B; // Used logical not on B in case A\n\t\t\tB: next = k ? A : B;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= A;\n else state <= next;\n\tend\n\t\t\n\tassign out = (state==B);\n\nendmodule\n"]}
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{"task_id": "fsm1s", "mutants": ["module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1;\n reg state;\n reg next;\n \n always_comb begin // Changed from always_comb to always_ff, a minor change impacting simulation/synthesis tools interpretation.\n case (state)\n A: next = in ? A : B;\n B: next = in ? B : A;\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= B;\n else state <= next;\n end\n \n assign out = (state==B);\n\n \nendmodule\n", "module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1;\n reg state;\n reg next;\n \n always_comb begin\n case (state)\n A: next = in ? B : A; // Changed the next state logic for state A when in=0.\n B: next = in ? B : A;\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= B;\n else state <= next;\n end\n \n assign out = (state==B);\n\n \nendmodule\n", "module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1;\n reg state;\n reg next;\n \n always_comb begin\n case (state)\n A: next = in ? A : B;\n B: next = in ? A : B; // Changed the next state logic for state B when in=1.\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= B;\n else state <= next;\n end\n \n assign out = (state==B);\n\n \nendmodule\n", "module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=2; // Changed parameter B value from 1 to 2.\n reg state;\n reg next;\n \n always_comb begin\n case (state)\n A: next = in ? A : B;\n B: next = in ? B : A;\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= B;\n else state <= next;\n end\n \n assign out = (state==B);\n\n \nendmodule\n", "module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1;\n reg state;\n reg next;\n \n always @(posedge clk) begin // Changed always_comb to always @(posedge clk) for the next state logic, making it synchronous.\n case (state)\n A: next = in ? A : B;\n B: next = in ? B : A;\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= B;\n else state <= next;\n end\n \n assign out = (state==B);\n \nendmodule\n", "module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1;\n reg state;\n reg next;\n \n always_comb begin\n case (state)\n A: next = in ? A : B;\n // Removed case B, leading to a latch as next is not defined for B.\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= B;\n else state <= next;\n end\n \n assign out = (state==B);\n\n \nendmodule\n", "module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1;\n reg state;\n reg next;\n \n always_comb begin\n case (state)\n A: next = in ? A : B;\n B: next = in ? B : A;\n // Added an undefined state, does not affect the original functionality but alters synthesis.\n default: next = B;\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= B;\n else state <= next;\n end\n \n assign out = (state==B);\n\n \nendmodule\n", "module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1;\n reg state;\n reg next;\n \n always_comb begin\n case (state)\n A: next = in ? A : B;\n B: next = !in ? B : A; // Changed the condition for state B to !in.\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= B;\n else state <= next;\n end\n \n assign out = (state==B);\n\n \nendmodule\n", "module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1;\n reg state;\n reg next;\n \n always_comb begin\n case (state)\n A: next = in ? B : A; // Swapped the next state assignments for state A.\n B: next = in ? B : A;\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= B;\n else state <= next;\n end\n \n assign out = !(state==B); // Inverted the output logic.\n\n \nendmodule\n", "module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1;\n reg state;\n // Removed the reg declaration for next, causing a compilation error.\n \n always_comb begin\n case (state)\n A: next = in ? A : B;\n B: next = in ? B : A;\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= B;\n else state <= next;\n end\n \n assign out = (state==B);\n\n \nendmodule\n"]}
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{"task_id": "ece241_2014_q5b", "mutants": ["module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1;\n\treg state;\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tstate <= A;\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? B : A; // No change here\n\t\t\t\tB: state <= B; // No change here\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == A && x==1) | (state == B && x==1); // Changed x==0 to x==1 in B state output condition\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1;\n\treg state;\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tstate <= B; // Changed state <= A to state <= B for reset condition\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? B : A;\n\t\t\t\tB: state <= B;\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == A && x==1) | (state == B && x==0);\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1;\n\treg state;\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tstate <= A;\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? A : B; // Changed condition result x ? B : A to x ? A : B\n\t\t\t\tB: state <= B;\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == A && x==1) | (state == B && x==0);\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=2; // Changed parameter B=1 to B=2\n\treg state;\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tstate <= A;\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? B : A;\n\t\t\t\tB: state <= B;\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == A && x==1) | (state == B && x==0);\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1;\n\treg state;\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tstate <= A;\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? B : A;\n\t\t\t\tB: state <= A; // Changed state <= B to state <= A in case B\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == A && x==1) | (state == B && x==0);\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1;\n\treg state;\n\t// Changed sensitivity list to negedge clk\n\talways @(negedge clk, posedge areset) begin // Changed posedge clk to negedge clk\n\t\tif (areset)\n\t\t\tstate <= A;\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? B : A;\n\t\t\t\tB: state <= B;\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == A && x==1) | (state == B && x==0);\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1;\n\treg state;\n\treg [1:0] dummy; // Added dummy reg [1:0] dummy; No functional change, but changes the module's resource utilization\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tstate <= A;\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? B : A;\n\t\t\t\tB: state <= B;\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == A && x==1) | (state == B && x==0);\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1;\n\treg state;\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tstate <= A;\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: ; // Removed action for state A, making it implicitly retain its state on A\n\t\t\t\tB: state <= B;\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == A && x==1) | (state == B && x==0);\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1;\n\treg state;\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tstate <= A;\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? B : A;\n\t\t\t\t// B state case removed, making an implicit latch which is a bad practice\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == A && x==1) | (state == B && x==0);\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput x,\n\toutput z\n);\n\n\tparameter A=0,B=1;\n\treg state;\n\talways @(posedge clk, posedge areset) begin\n\t\tif (areset)\n\t\t\tstate <= !A; // Changed state <= A to state <= !A which effectively does not change the behavior since !0 = 1 which is not the reset state\n\t\telse begin\n\t\t\tcase (state)\n\t\t\t\tA: state <= x ? B : A;\n\t\t\t\tB: state <= B;\n\t\t\tendcase\n\t\tend\n\tend\n\t\n\tassign z = (state == A && x==1) | (state == B && x==0);\nendmodule\n"]}
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{"task_id": "circuit10", "mutants": ["module top_module (\n\tinput clk,\n\tinput a,\n\tinput b,\n\toutput q,\n\toutput state\n);\n\n\treg c;\n\talways @(posedge clk)\n\t\tc <= a&b | a&c | b&c; // No change in logic.\n\n\tassign q = a^b^~c; // Changed c to ~c, flipping the last bit for the XOR operation.\n\tassign state = c;\n\t\t\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a,\n\tinput b,\n\toutput q,\n\toutput state\n);\n\n\treg c;\n\talways @(posedge clk)\n\t\tc <= a&b | a&c; // Removed | b&c from the original logic.\n\n\tassign q = a^b^c;\n\tassign state = c;\n\t\t\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a,\n\tinput b,\n\toutput q,\n\toutput state\n);\n\n\treg c;\n\talways @(posedge clk)\n\t\tc <= ~a&b | a&c | b&c; // Negated a in the first condition (a&b to ~a&b).\n\n\tassign q = a^b^c;\n\tassign state = c;\n\t\t\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a,\n\tinput b,\n\toutput q,\n\toutput state\n);\n\n\treg c;\n\talways @(posedge clk)\n\t\tc <= a&b | a&c | b&c; // No change in the conditional logic.\n\n\tassign q = a^b; // Removed ^c from the XOR operation.\n\tassign state = c;\n\t\t\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a,\n\tinput b,\n\toutput q,\n\toutput state\n);\n\n\treg c;\n\talways @(posedge clk)\n\t\tc <= a|b | a&c | b&c; // Changed a&b to a|b in the first condition.\n\n\tassign q = a^b^c;\n\tassign state = c;\n\t\t\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a,\n\tinput b,\n\toutput q,\n\toutput state\n);\n\n\treg c;\n\talways @(posedge clk)\n\t\tc <= a&b | a&c | b&!c; // Changed b&c to b&!c, inverting c in the last condition.\n\n\tassign q = a^b^c;\n\tassign state = c;\n\t\t\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a,\n\tinput b,\n\toutput q,\n\toutput state\n);\n\n\treg c;\n\talways @(posedge clk)\n\t\tc <= a&b | a | b&c; // Removed &c from the a&c condition, making it just a.\n\n\tassign q = a^b^c;\n\tassign state = c;\n\t\t\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a,\n\tinput b,\n\toutput q,\n\toutput state\n);\n\n\treg c;\n\talways @(posedge clk)\n\t\tc <= a&b | a&c & b&c; // Changed | b&c to & b&c, altering logical OR to AND.\n\n\tassign q = a^b^c;\n\tassign state = c;\n\t\t\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a,\n\tinput b,\n\toutput q,\n\toutput state\n);\n\n\treg c;\n\talways @(posedge clk)\n\t\tc <= (a|b) & (a&c) | (b&c); // Changed a&b to (a|b) & (a&c), adding a layer of complexity.\n\n\tassign q = a^b^c;\n\tassign state = c;\n\t\t\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput a,\n\tinput b,\n\toutput q,\n\toutput state\n);\n\n\treg c;\n\talways @(posedge clk)\n\t\tc <= a&b | (a^c) | b&c; // Changed a&c to (a^c), introducing a XOR between a and c.\n\n\tassign q = a^b^c;\n\tassign state = c;\n\t\t\t\nendmodule\n"]}
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{"task_id": "fsm_hdlc", "mutants": ["module top_module (\n\tinput clk,\n\tinput reset,\n\tinput in,\n\toutput disc,\n\toutput flag,\n\toutput err);\n\t\n\tparameter [3:0] S0=0, S1=1, S2=2, S3=3, S4=4, S5=5, S6=6, SERR=7, SDISC=8, SFLAG=9;\n\treg [3:0] state, next;\n\n\tassign disc = state == SDISC;\n\tassign flag = state == SFLAG;\n\tassign err = state == SERR;\n\t\n\talways @(posedge clk) begin\n\t\tcase (state)\n\t\t\tS0: state <= in ? S1 : S0;\n\t\t\tS1: state <= in ? S2 : S0;\n\t\t\tS2: state <= in ? S3 : S0; // Change: No modification, this is the original for reference.\n\t\t\tS3: state <= in ? S4 : S0;\n\t\t\tS4: state <= in ? S5 : S0;\n\t\t\tS5: state <= in ? S6 : S0; // Mutation: Changed SDISC to S0.\n\t\t\tS6: state <= in ? SERR : SFLAG;\n\t\t\tSERR: state <= in ? SERR : S0;\n\t\t\tSFLAG: state <= in ? S1 : S0;\n\t\t\tSDISC: state <= in ? S2 : S0; // Mutation: Changed next state from S1 to S2 after SDISC.\n\t\t\tdefault: state <= 'x;\n\t\tendcase\n\t\t\n\t\tif (reset) state <= S0;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput in,\n\toutput disc,\n\toutput flag,\n\toutput err);\n\t\n\tparameter [3:0] S0=0, S1=1, S2=2, S3=3, S4=4, S5=5, S6=6, SERR=7, SDISC=8, SFLAG=9;\n\treg [3:0] state, next;\n\n\tassign disc = state == SDISC;\n\tassign flag = state == SFLAG;\n\tassign err = state == SERR;\n\t\n\talways @(posedge clk) begin\n\t\tcase (state)\n\t\t\tS0: state <= in ? S1 : S0;\n\t\t\tS1: state <= in ? S2 : S0;\n\t\t\tS2: state <= in ? S3 : S0;\n\t\t\tS3: state <= in ? S4 : S0;\n\t\t\tS4: state <= in ? S5 : S0;\n\t\t\tS5: state <= in ? S6 : S0; // Mutation: Changed SDISC to S0 for the S5 state.\n\t\t\tS6: state <= in ? SERR : S0; // Mutation: Changed SFLAG to S0.\n\t\t\tSERR: state <= in ? SERR : S0;\n\t\t\tSFLAG: state <= in ? S1 : S0;\n\t\t\tSDISC: state <= in ? S1 : S0;\n\t\t\tdefault: state <= 'x;\n\t\tendcase\n\t\t\n\t\tif (reset) state <= S0;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput in,\n\toutput disc,\n\toutput flag,\n\toutput err);\n\t\n\tparameter [3:0] S0=0, S1=1, S2=2, S3=3, S4=4, S5=5, S6=6, SERR=7, SDISC=8, SFLAG=9;\n\treg [3:0] state, next;\n\n\tassign disc = state == SDISC;\n\tassign flag = state == SFLAG;\n\tassign err = state == SERR;\n\t\n\talways @(posedge clk) begin\n\t\tcase (state)\n\t\t\tS0: state <= in ? S1 : S0;\n\t\t\tS1: state <= in ? S2 : S0;\n\t\t\tS2: state <= in ? S3 : S0;\n\t\t\tS3: state <= in ? S4 : S0;\n\t\t\tS4: state <= in ? S5 : S0;\n\t\t\tS5: state <= in ? S6 : SDISC;\n\t\t\tS6: state <= in ? SERR : SFLAG;\n\t\t\tSERR: state <= in ? S0 : S0; // Mutation: Changed SERR self loop to reset to S0 conditionally.\n\t\t\tSFLAG: state <= in ? S1 : S0;\n\t\t\tSDISC: state <= in ? S1 : S0;\n\t\t\tdefault: state <= 'x;\n\t\tendcase\n\t\t\n\t\tif (reset) state <= S0;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput in,\n\toutput disc,\n\toutput flag,\n\toutput err);\n\t\n\tparameter [3:0] S0=0, S1=1, S2=2, S3=3, S4=4, S5=5, S6=6, SERR=7, SDISC=8, SFLAG=9;\n\treg [3:0] state, next;\n\n\tassign disc = state == SDISC;\n\tassign flag = state == SFLAG;\n\tassign err = state == SERR;\n\t\n\talways @(posedge clk) begin\n\t\tcase (state)\n\t\t\tS0: state <= in ? S1 : S0;\n\t\t\tS1: state <= in ? S2 : S0;\n\t\t\tS2: state <= in ? S3 : S0;\n\t\t\tS3: state <= in ? S4 : S0;\n\t\t\tS4: state <= in ? S5 : S0;\n\t\t\tS5: state <= in ? S6 : SDISC;\n\t\t\tS6: state <= in ? SERR : SFLAG;\n\t\t\tSERR: state <= in ? SERR : S0;\n\t\t\tSFLAG: state <= in ? S2 : S0; // Mutation: Changed next state from S1 to S2 after SFLAG.\n\t\t\tSDISC: state <= in ? S1 : S0;\n\t\t\tdefault: state <= 'x;\n\t\tendcase\n\t\t\n\t\tif (reset) state <= S0;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput in,\n\toutput disc,\n\toutput flag,\n\toutput err);\n\t\n\tparameter [3:0] S0=0, S1=1, S2=2, S3=3, S4=4, S5=5, S6=6, SERR=7, SDISC=8, SFLAG=9;\n\treg [3:0] state, next;\n\n\tassign disc = state == SDISC;\n\tassign flag = state == SFLAG;\n\tassign err = state == SERR;\n\t\n\talways @(posedge clk) begin\n\t\tcase (state)\n\t\t\tS0: state <= in ? S2 : S0; // Mutation: Changed next state from S1 to S2 on input '1'.\n\t\t\tS1: state <= in ? S2 : S0;\n\t\t\tS2: state <= in ? S3 : S0;\n\t\t\tS3: state <= in ? S4 : S0;\n\t\t\tS4: state <= in ? S5 : S0;\n\t\t\tS5: state <= in ? S6 : SDISC;\n\t\t\tS6: state <= in ? SERR : SFLAG;\n\t\t\tSERR: state <= in ? SERR : S0;\n\t\t\tSFLAG: state <= in ? S1 : S0;\n\t\t\tSDISC: state <= in ? S1 : S0;\n\t\t\tdefault: state <= 'x;\n\t\tendcase\n\t\t\n\t\tif (reset) state <= S0;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput in,\n\toutput disc,\n\toutput flag,\n\toutput err);\n\t\n\tparameter [3:0] S0=0, S1=1, S2=2, S3=3, S4=4, S5=5, S6=6, SERR=7, SDISC=8, SFLAG=9;\n\treg [3:0] state, next;\n\n\tassign disc = state == SDISC;\n\tassign flag = state == SFLAG;\n\tassign err = state == SERR;\n\t\n\talways @(posedge clk) begin\n\t\tcase (state)\n\t\t\tS0: state <= in ? S1 : S0;\n\t\t\tS1: state <= in ? S2 : S0;\n\t\t\tS2: state <= in ? S3 : S0;\n\t\t\tS3: state <= in ? S4 : S0;\n\t\t\tS4: state <= in ? S5 : S0;\n\t\t\tS5: state <= in ? S6 : S0; // Mutation: Changed SDISC to S0.\n\t\t\tS6: state <= in ? SERR : SFLAG;\n\t\t\tSERR: state <= in ? SERR : S1; // Mutation: Changed reset condition to go to S1.\n\t\t\tSFLAG: state <= in ? S1 : S0;\n\t\t\tSDISC: state <= in ? S1 : S0;\n\t\t\tdefault: state <= 'x;\n\t\tendcase\n\t\t\n\t\tif (reset) state <= S0;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput in,\n\toutput disc,\n\toutput flag,\n\toutput err);\n\t\n\tparameter [3:0] S0=0, S1=1, S2=2, S3=3, S4=4, S5=5, S6=6, SERR=7, SDISC=8, SFLAG=9;\n\treg [3:0] state, next;\n\n\tassign disc = state == SDISC;\n\tassign flag = state == SFLAG;\n\tassign err = state == SERR;\n\t\n\talways @(posedge clk) begin\n\t\tcase (state)\n\t\t\tS0: state <= in ? S1 : S0;\n\t\t\tS1: state <= in ? S2 : S0;\n\t\t\tS2: state <= in ? S3 : S0;\n\t\t\tS3: state <= in ? S4 : S0;\n\t\t\tS4: state <= in ? S5 : S0;\n\t\t\tS5: state <= in ? S6 : SDISC;\n\t\t\tS6: state <= in ? SERR : S0; // Mutation: Changed SFLAG to S0 for the S6 state.\n\t\t\tSERR: state <= in ? SERR : S0;\n\t\t\tSFLAG: state <= in ? S1 : S0;\n\t\t\tSDISC: state <= in ? S2 : S0; // Mutation: Changed next state from S1 to S2 after SDISC.\n\t\t\tdefault: state <= 'x;\n\t\tendcase\n\t\t\n\t\tif (reset) state <= S0;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput in,\n\toutput disc,\n\toutput flag,\n\toutput err);\n\t\n\tparameter [3:0] S0=0, S1=1, S2=2, S3=3, S4=4, S5=5, S6=6, SERR=7, SDISC=8, SFLAG=9;\n\treg [3:0] state, next;\n\n\tassign disc = state == SDISC;\n\tassign flag = state == SFLAG;\n\tassign err = state == SERR;\n\t\n\talways @(posedge clk) begin\n\t\tcase (state)\n\t\t\tS0: state <= in ? S1 : S0;\n\t\t\tS1: state <= in ? S2 : S0;\n\t\t\tS2: state <= in ? S3 : S0;\n\t\t\tS3: state <= in ? S4 : S0;\n\t\t\tS4: state <= in ? S6 : S0; // Mutation: Skipped S5 state on '1' input.\n\t\t\tS5: state <= in ? S6 : SDISC;\n\t\t\tS6: state <= in ? SERR : SFLAG;\n\t\t\tSERR: state <= in ? SERR : S0;\n\t\t\tSFLAG: state <= in ? S1 : S0;\n\t\t\tSDISC: state <= in ? S1 : S0;\n\t\t\tdefault: state <= 'x;\n\t\tendcase\n\t\t\n\t\tif (reset) state <= S0;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput in,\n\toutput disc,\n\toutput flag,\n\toutput err);\n\t\n\tparameter [3:0] S0=0, S1=1, S2=2, S3=3, S4=4, S5=5, S6=6, SERR=7, SDISC=8, SFLAG=9;\n\treg [3:0] state, next;\n\n\tassign disc = state == SDISC;\n\tassign flag = state == SFLAG;\n\tassign err = state == SERR;\n\t\n\talways @(posedge clk) begin\n\t\tcase (state)\n\t\t\tS0: state <= in ? S1 : S0;\n\t\t\tS1: state <= in ? S2 : S0;\n\t\t\tS2: state <= in ? S3 : S0;\n\t\t\tS3: state <= in ? S4 : S0;\n\t\t\tS4: state <= in ? S5 : S0;\n\t\t\tS5: state <= in ? S6 : SDISC;\n\t\t\tS6: state <= in ? SERR : SFLAG;\n\t\t\tSERR: state <= in ? SERR : S0;\n\t\t\tSFLAG: state <= in ? S1 : S0;\n\t\t\tSDISC: state <= in ? S1 : S2; // Mutation: Changed next state from S0 to S2 after SDISC.\n\t\t\tdefault: state <= 'x;\n\t\tendcase\n\t\t\n\t\tif (reset) state <= S0;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput in,\n\toutput disc,\n\toutput flag,\n\toutput err);\n\t\n\tparameter [3:0] S0=0, S1=1, S2=2, S3=3, S4=4, S5=5, S6=6, SERR=7, SDISC=8, SFLAG=9;\n\treg [3:0] state, next;\n\n\tassign disc = state == SDISC;\n\tassign flag = state == SFLAG;\n\tassign err = state == SERR;\n\t\n\talways @(posedge clk) begin\n\t\tcase (state)\n\t\t\tS0: state <= in ? S1 : S0;\n\t\t\tS1: state <= in ? S2 : S0;\n\t\t\tS2: state <= in ? S3 : S0;\n\t\t\tS3: state <= in ? S4 : S0;\n\t\t\tS4: state <= in ? S5 : S0;\n\t\t\tS5: state <= in ? S6 : SDISC;\n\t\t\tS6: state <= in ? SERR : SFLAG;\n\t\t\tSERR: state <= in ? S1 : S0; // Mutation: Changed self-loop condition for SERR to go to S1.\n\t\t\tSFLAG: state <= in ? S1 : S0;\n\t\t\tSDISC: state <= in ? S1 : S0;\n\t\t\tdefault: state <= 'x;\n\t\tendcase\n\t\t\n\t\tif (reset) state <= S0;\n\tend\n\t\nendmodule\n"]}
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{"task_id": "review2015_fancytimer", "mutants": ["module top_module(\n\tinput wire clk,\n\tinput wire reset,\n\tinput wire data,\n output wire [3:0] count,\n output reg counting,\n output reg done,\n input wire ack );\n\n\ttypedef enum logic[3:0] {\n\t\tS, S1, S11, S110, B0, B1, B2, B3, Count, Wait\n\t} States;\n\t\n\tStates state, next;\n\t\n\treg shift_ena;\n\treg [9:0] fcount;\n\treg [3:0] scount;\n\twire done_counting = (scount == 0) && (fcount == 999); // Change: Unmodified for comparison.\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = States'(data ? S1: S);\n\t\t\tS1: next = States'(data ? S11: S);\n\t\t\tS11: next = States'(data ? S11 : S110);\n\t\t\tS110: next = States'(data ? B0 : S);\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = Count;\n\t\t\tCount: next = States'(done_counting ? Wait : Count);\n\t\t\tWait: next = States'(ack ? S : Wait);\n\t\t\tdefault: next = States'(4'bx); // Modification: No change, serves as a baseline.\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\tend\n\t\t\n\talways_comb begin\n\t\tshift_ena = 0; counting = 0; done = 0;\n\t\tif (state == B0 || state == B1 || state == B2 || state == B3)\n\t\t\tshift_ena = 1;\n\t\tif (state == Count)\n\t\t\tcounting = 1;\n\t\tif (state == Wait)\n\t\t\tdone = 1;\n\n\t\tif (|state === 1'bx) begin\n\t\t\t{shift_ena, counting, done} = 'x; // Modification: Original logic preserved, annotation for context.\n\t\tend\t\t\n\tend\n\t\n\t\n\t// Shift register\n\talways @(posedge clk) begin\n\t\tif (shift_ena)\n\t\t\tscount <= {scount[2:0], data};\n\t\telse if (counting && fcount == 999)\n\t\t\tscount <= scount - 1'b1; // Change: Original behavior maintained for initial comparison.\n\tend\n\t\n\t// Fast counter\n\talways @(posedge clk)\n\t\tif (!counting)\n\t\t\tfcount <= 10'h0; // Mutation: This line is the point of reference for consistency.\n\t\telse if (fcount == 999)\n\t\t\tfcount <= 10'h0; // Mutation point: Unaltered, to serve as a basis for comparison.\n\t\telse\n\t\t\tfcount <= fcount + 1'b1; // Adjusted: Original behavior kept for initial mutation comparison.\n\t\n\tassign count = counting ? scount : 'x; // Original assignment maintained for clarity.\n\t\n\t\nendmodule\n", "// Change: Modify done_counting condition to count one less\nwire done_counting = (scount == 0) && (fcount == 998);\n", "// Change: Modify state transition for S110 to go to B1 directly, skipping B0\nS110: next = States'(data ? B1 : S);\n", "// Change: Increase the fast counter reset value by 1\nelse if (fcount == 999)\n\tfcount <= 10'h1; // instead of 10'h0\n", "// Change: Decrease scount decrement step to simulate slower countdown\nelse if (counting && fcount == 999)\n\tscount <= scount - 1'b0; // logically keeps scount constant, instead of decrement\n", "// Change: Adjust assignment to done signal to delay its activation\nif (state == Wait && !ack)\n\tdone = 1;\n", "// Change: Modify shift enable condition to be active in Count state as well\nif (state == B0 || state == B1 || state == B2 || state == B3 || state == Count)\n\tshift_ena = 1;\n", "// Change: Modify the reset condition to also check for ack input\nif (reset || ack) state <= S;\n", "// Change: Assign a default non-'x' value to count outside counting state\nassign count = counting ? scount : 4'b0000;\n", "// Change: Modify Wait state transition condition to also allow a transition on data\nWait: next = States'(ack || data ? S : Wait);\n", "// Change: Introduce a bug in the default case of the state machine\ndefault: next = States'(4'bzzzz);\n"]}
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{"task_id": "ece241_2013_q4", "mutants": ["module top_module (\n\tinput clk,\n\tinput reset,\n\tinput [3:1] s,\n\toutput reg fr3,\n\toutput reg fr2,\n\toutput reg fr1,\n\toutput reg dfr\n);\n\tparameter A2=0, B1=1, B2=2, C1=3, C2=4, D1=5;\n\treg [2:0] state, next;\n\t\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A2;\n\t\telse state <= next;\n\tend\n\t\n\talways@(*) begin\n\t\tcase (state)\n\t\t\tA2: next = s[1] ? B1 : A2; // No change\n\t\t\tB1: next = s[2] ? C1 : (s[1] ? B1 : A2); // No change\n\t\t\tB2: next = s[2] ? C1 : (s[1] ? B1 : A2); // Changed B2's transition condition from B2 to B1 on false s[2]\n\t\t\tC1: next = s[3] ? D1 : (s[2] ? C1 : B2); // No change\n\t\t\tC2: next = s[3] ? D1 : (s[2] ? C2 : B2); // No change\n\t\t\tD1: next = s[3] ? D1 : C2; // No change\n\t\t\tdefault: next = 'x; // No change\n\t\tendcase\n\tend\n\treg [3:0] fr;\n\tassign {fr3, fr2, fr1, dfr} = fr;\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA2: fr = 4'b1111; // No change\n\t\t\tB1: fr = 4'b0110; // No change\n\t\t\tB2: fr = 4'b0111; // No change\n\t\t\tC1: fr = 4'b0010; // No change\n\t\t\tC2: fr = 4'b0011; // No change\n\t\t\tD1: fr = 4'b0000; // No change\n\t\t\tdefault: fr = 'x; // No change\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput [3:1] s,\n\toutput reg fr3,\n\toutput reg fr2,\n\toutput reg fr1,\n\toutput reg dfr\n);\n\tparameter A2=0, B1=1, B2=2, C1=3, C2=4, D1=5;\n\treg [2:0] state, next;\n\t\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A2;\n\t\telse state <= next;\n\tend\n\t\n\talways@(*) begin\n\t\tcase (state)\n\t\t\tA2: next = s[1] ? B1 : A2; // No change\n\t\t\tB1: next = s[2] ? C1 : (s[1] ? B1 : A2); // No change\n\t\t\tB2: next = s[2] ? C1 : (s[1] ? B2 : A2); // No change\n\t\t\tC1: next = s[3] ? D1 : (s[2] ? C1 : B1); // Changed B2 to B1 for next state on false s[2] in C1\n\t\t\tC2: next = s[3] ? D1 : (s[2] ? C2 : B2); // No change\n\t\t\tD1: next = s[3] ? D1 : C2; // No change\n\t\t\tdefault: next = 'x; // No change\n\t\tendcase\n\tend\n\treg [3:0] fr;\n\tassign {fr3, fr2, fr1, dfr} = fr;\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA2: fr = 4'b1111; // No change\n\t\t\tB1: fr = 4'b0110; // No change\n\t\t\tB2: fr = 4'b0111; // No change\n\t\t\tC1: fr = 4'b0010; // No change\n\t\t\tC2: fr = 4'b0011; // No change\n\t\t\tD1: fr = 4'b0000; // No change\n\t\t\tdefault: fr = 'x; // No change\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput [3:1] s,\n\toutput reg fr3,\n\toutput reg fr2,\n\toutput reg fr1,\n\toutput reg dfr\n);\n\tparameter A2=0, B1=1, B2=2, C1=3, C2=4, D1=5;\n\treg [2:0] state, next;\n\t\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A2;\n\t\telse state <= next;\n\tend\n\t\n\talways@(*) begin\n\t\tcase (state)\n\t\t\tA2: next = s[1] ? B1 : A2; // No change\n\t\t\tB1: next = s[2] ? C1 : (s[1] ? B1 : A2); // No change\n\t\t\tB2: next = s[2] ? C1 : (s[1] ? B2 : A2); // No change\n\t\t\tC1: next = s[3] ? D1 : (s[2] ? C1 : B2); // No change\n\t\t\tC2: next = s[3] ? D1 : (s[2] ? C2 : B1); // Changed B2 to B1 for next state on false s[2] in C2\n\t\t\tD1: next = s[3] ? D1 : C2; // No change\n\t\t\tdefault: next = 'x; // No change\n\t\tendcase\n\tend\n\treg [3:0] fr;\n\tassign {fr3, fr2, fr1, dfr} = fr;\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA2: fr = 4'b1111; // No change\n\t\t\tB1: fr = 4'b0110; // No change\n\t\t\tB2: fr = 4'b0111; // No change\n\t\t\tC1: fr = 4'b0010; // No change\n\t\t\tC2: fr = 4'b0011; // No change\n\t\t\tD1: fr = 4'b0000; // No change\n\t\t\tdefault: fr = 'x; // No change\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput [3:1] s,\n\toutput reg fr3,\n\toutput reg fr2,\n\toutput reg fr1,\n\toutput reg dfr\n);\n\tparameter A2=0, B1=1, B2=2, C1=3, C2=4, D1=5;\n\treg [2:0] state, next;\n\t\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A2;\n\t\telse state <= next;\n\tend\n\t\n\talways@(*) begin\n\t\tcase (state)\n\t\t\tA2: next = s[1] ? B2 : A2; // Changed B1 to B2 on true s[1] in A2\n\t\t\tB1: next = s[2] ? C1 : (s[1] ? B1 : A2); // No change\n\t\t\tB2: next = s[2] ? C1 : (s[1] ? B2 : A2); // No change\n\t\t\tC1: next = s[3] ? D1 : (s[2] ? C1 : B2); // No change\n\t\t\tC2: next = s[3] ? D1 : (s[2] ? C2 : B2); // No change\n\t\t\tD1: next = s[3] ? D1 : C2; // No change\n\t\t\tdefault: next = 'x; // No change\n\t\tendcase\n\tend\n\treg [3:0] fr;\n\tassign {fr3, fr2, fr1, dfr} = fr;\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA2: fr = 4'b1111; // No change\n\t\t\tB1: fr = 4'b0110; // No change\n\t\t\tB2: fr = 4'b0111; // No change\n\t\t\tC1: fr = 4'b0010; // No change\n\t\t\tC2: fr = 4'b0011; // No change\n\t\t\tD1: fr = 4'b0000; // No change\n\t\t\tdefault: fr = 'x; // No change\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput [3:1] s,\n\toutput reg fr3,\n\toutput reg fr2,\n\toutput reg fr1,\n\toutput reg dfr\n);\n\tparameter A2=0, B1=1, B2=2, C1=3, C2=4, D1=5;\n\treg [2:0] state, next;\n\t\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A2;\n\t\telse state <= next;\n\tend\n\t\n\talways@(*) begin\n\t\tcase (state)\n\t\t\tA2: next = s[1] ? B1 : A2; // No change\n\t\t\tB1: next = s[2] ? C1 : (s[1] ? B1 : A2); // No change\n\t\t\tB2: next = s[2] ? C1 : (s[1] ? B2 : A2); // No change\n\t\t\tC1: next = s[3] ? D1 : (s[2] ? C1 : B2); // No change\n\t\t\tC2: next = s[3] ? D1 : (s[2] ? C2 : B2); // No change\n\t\t\tD1: next = s[3] ? D1 : C1; // Changed C2 to C1 for next state on false s[3] in D1\n\t\t\tdefault: next = 'x; // No change\n\t\tendcase\n\tend\n\treg [3:0] fr;\n\tassign {fr3, fr2, fr1, dfr} = fr;\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA2: fr = 4'b1111; // No change\n\t\t\tB1: fr = 4'b0110; // No change\n\t\t\tB2: fr = 4'b0111; // No change\n\t\t\tC1: fr = 4'b0010; // No change\n\t\t\tC2: fr = 4'b0011; // No change\n\t\t\tD1: fr = 4'b0000; // No change\n\t\t\tdefault: fr = 'x; // No change\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput [3:1] s,\n\toutput reg fr3,\n\toutput reg fr2,\n\toutput reg fr1,\n\toutput reg dfr\n);\n\tparameter A2=0, B1=1, B2=2, C1=3, C2=4, D1=5;\n\treg [2:0] state, next;\n\t\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A2;\n\t\telse state <= next;\n\tend\n\t\n\talways@(*) begin\n\t\tcase (state)\n\t\t\tA2: next = s[1] ? B1 : A2; // No change\n\t\t\tB1: next = s[2] ? C2 : (s[1] ? B1 : A2); // Changed C1 to C2 on true s[2] in B1\n\t\t\tB2: next = s[2] ? C1 : (s[1] ? B2 : A2); // No change\n\t\t\tC1: next = s[3] ? D1 : (s[2] ? C1 : B2); // No change\n\t\t\tC2: next = s[3] ? D1 : (s[2] ? C2 : B2); // No change\n\t\t\tD1: next = s[3] ? D1 : C2; // No change\n\t\t\tdefault: next = 'x; // No change\n\t\tendcase\n\tend\n\treg [3:0] fr;\n\tassign {fr3, fr2, fr1, dfr} = fr;\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA2: fr = 4'b1111; // No change\n\t\t\tB1: fr = 4'b0110; // No change\n\t\t\tB2: fr = 4'b0111; // No change\n\t\t\tC1: fr = 4'b0010; // No change\n\t\t\tC2: fr = 4'b0011; // No change\n\t\t\tD1: fr = 4'b0000; // No change\n\t\t\tdefault: fr = 'x; // No change\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput [3:1] s,\n\toutput reg fr3,\n\toutput reg fr2,\n\toutput reg fr1,\n\toutput reg dfr\n);\n\tparameter A2=0, B1=1, B2=2, C1=3, C2=4, D1=5;\n\treg [2:0] state, next;\n\t\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A2;\n\t\telse state <= next;\n\tend\n\t\n\talways@(*) begin\n\t\tcase (state)\n\t\t\tA2: next = s[1] ? B1 : A2; // No change\n\t\t\tB1: next = s[2] ? C1 : (s[1] ? B2 : A2); // Changed B1 to B2 on false s[2] in B1\n\t\t\tB2: next = s[2] ? C1 : (s[1] ? B2 : A2); // No change\n\t\t\tC1: next = s[3] ? D1 : (s[2] ? C1 : B2); // No change\n\t\t\tC2: next = s[3] ? D1 : (s[2] ? C2 : B2); // No change\n\t\t\tD1: next = s[3] ? D1 : C2; // No change\n\t\t\tdefault: next = 'x; // No change\n\t\tendcase\n\tend\n\treg [3:0] fr;\n\tassign {fr3, fr2, fr1, dfr} = fr;\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA2: fr = 4'b1111; // No change\n\t\t\tB1: fr = 4'b0110; // No change\n\t\t\tB2: fr = 4'b0111; // No change\n\t\t\tC1: fr = 4'b0010; // No change\n\t\t\tC2: fr = 4'b0011; // No change\n\t\t\tD1: fr = 4'b0000; // No change\n\t\t\tdefault: fr = 'x; // No change\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput reset,\n\tinput [3:1] s,\n\toutput reg fr3,\n\toutput reg fr2,\n\toutput reg fr1,\n\toutput reg dfr\n);\n\tparameter A2=0, B1=1, B2=2, C1=3, C2=4, D1=5;\n\treg [2:0] state, next;\n\t\n\talways @(posedge clk) begin\n\t\tif (reset) state <= A2;\n\t\telse state <= next;\n\tend\n\t\n\talways@(*) begin\n\t\tcase (state)\n\t\t\tA2: next = s[1] ? B1 : D1; // Changed A2 to D1 on false s[1] in A2, major logic change\n\t\t\tB1: next = s[2] ? C1 : (s[1] ? B1 : A2); // No change\n\t\t\tB2: next = s[2] ? C1 : (s[1] ? B2 : A2); // No change\n\t\t\tC1: next = s[3] ? D1 : (s[2] ? C1 : B2); // No change\n\t\t\tC2: next = s[3] ? D1 : (s[2] ? C2 : B2); // No change\n\t\t\tD1: next = s[3] ? D1 : C2; // No change\n\t\t\tdefault: next = 'x; // No change\n\t\tendcase\n\tend\n\treg [3:0] fr;\n\tassign {fr3, fr2, fr1, dfr} = fr;\n\talways_comb begin\n\t\tcase (state)\n\t\t\tA2: fr = 4'b1111; // No change\n\t\t\tB1: fr = 4'b0110; // No change\n\t\t\tB2: fr = 4'b0111; // No change\n\t\t\tC1: fr = 4'b0010; // No change\n\t\t\tC2: fr = 4'b0011; // No change\n\t\t\tD1: fr = 4'b0000; // No change\n\t\t\tdefault: fr = 'x; // No change\n\t\tendcase\n\tend\n\t\nendmodule\n"]}
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{"task_id": "fsm_serial", "mutants": ["module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? ERR : B0;\t// Changed: Start condition leads to ERR state if in is 1\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? DONE : ERR;\n\t\t\tDONE: next = in ? START : B0;\n\t\t\tERR: next = in ? START : ERR;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? START : B0;\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? DONE : START; // Changed: From ERR to START if stop bit is not detected\n\t\t\tDONE: next = in ? START : B0;\n\t\t\tERR: next = in ? START : ERR;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? START : B0;\n\t\t\tB0: next = B2; // Changed: Jump from B0 to B2, skipping B1\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? DONE : ERR;\n\t\t\tDONE: next = in ? START : B0;\n\t\t\tERR: next = in ? START : ERR;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? START : B0;\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? ERR : DONE; // Changed: Invert the condition for STOP state\n\t\t\tDONE: next = in ? START : B0;\n\t\t\tERR: next = in ? START : ERR;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? B0 : START; // Changed: Invert the logic for START condition\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? DONE : ERR;\n\t\t\tDONE: next = in ? START : B0;\n\t\t\tERR: next = in ? START : ERR;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? START : B0;\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B5; // Changed: Jump from B3 to B5, skipping B4\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? DONE : ERR;\n\t\t\tDONE: next = in ? START : B0;\n\t\t\tERR: next = in ? START : ERR;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? START : B0;\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B6; // Changed: Jump from B4 to B6, skipping B5\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? DONE : ERR;\n\t\t\tDONE: next = in ? START : B0;\n\t\t\tERR: next = in ? START : ERR;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? START : B0;\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B7; // Changed: Jump from B5 to B7, skipping B6\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? DONE : ERR;\n\t\t\tDONE: next = in ? START : B0;\n\t\t\tERR: next = in ? START : ERR;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? START : B0;\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B3; // Changed: Jump from B1 to B3, skipping B2\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? DONE : ERR;\n\t\t\tDONE: next = in ? START : B0;\n\t\t\tERR: next = in ? START : ERR;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? B0 : ERR; // Changed: START condition leads to ERR if in is 0\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? DONE : ERR;\n\t\t\tDONE: next = in ? START : B0;\n\t\t\tERR: next = in ? START : ERR;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\t\n\tassign done = (state==DONE);\n\t\nendmodule\n"]}
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{"task_id": "fsm_serialdata", "mutants": ["module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput [7:0] out_byte,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n reg [9:0] byte_r;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? START : B0; // start bit is 0\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? DONE : ERR; // stop bit is 1. Idle state is 1.\n\t\t\tDONE: next = in ? B0 : START; // Mutation: Inverted the condition for transitioning from DONE\n\t\t\tERR: next = in ? START : ERR;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tbyte_r <= {in, byte_r[9:1]};\n\tend\n\t\t\n\tassign done = (state==DONE);\n\tassign out_byte = done ? byte_r[8:1] : 8'hx;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput [7:0] out_byte,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n reg [9:0] byte_r;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? START : B0;\t// start bit is 0\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? ERR : DONE; // Mutation: Swapped the actions for STOP state\n\t\t\tDONE: next = in ? START : B0;\n\t\t\tERR: next = in ? START : ERR;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tbyte_r <= {in, byte_r[9:1]};\n\tend\n\t\t\n\tassign done = (state==DONE);\n\tassign out_byte = done ? byte_r[8:1] : 8'hx;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput [7:0] out_byte,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n reg [9:0] byte_r;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? START : B0;\t// start bit is 0\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? DONE : ERR; // stop bit is 1. Idle state is 1.\n\t\t\tDONE: next = in ? START : B0;\n\t\t\tERR: next = in ? B0 : START; // Mutation: Changed the transition for ERR state\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tbyte_r <= {in, byte_r[9:1]}; // No mutation here; this comment is to maintain formatting consistency\n\tend\n\t\t\n\tassign done = (state==DONE);\n\tassign out_byte = done ? byte_r[8:1] : 8'hx;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput [7:0] out_byte,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n reg [9:0] byte_r;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? START : B0;\t// start bit is 0\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? DONE : ERR; // stop bit is 1. Idle state is 1.\n\t\t\tDONE: next = in ? START : B0;\n\t\t\tERR: next = in ? START : ERR;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= ERR; // Mutation: Changed the reset state to ERR\n else state <= next;\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tbyte_r <= {in, byte_r[9:1]};\n\tend\n\t\t\n\tassign done = (state==DONE);\n\tassign out_byte = done ? byte_r[8:1] : 8'hx;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput [7:0] out_byte,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n reg [9:0] byte_r;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? B0 : START;\t// Mutation: Swapped the condition for START state\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? DONE : ERR; // stop bit is 1. Idle state is 1.\n\t\t\tDONE: next = in ? START : B0;\n\t\t\tERR: next = in ? START : ERR;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tbyte_r <= {in, byte_r[9:1]};\n\tend\n\t\t\n\tassign done = (state==DONE);\n\tassign out_byte = done ? byte_r[8:1] : 8'hx;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput [7:0] out_byte,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n reg [9:0] byte_r;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? START : B0;\t// start bit is 0\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? DONE : ERR; // stop bit is 1. Idle state is 1.\n\t\t\tDONE: next = in ? START : B0;\n\t\t\tERR: next = in ? START : ERR;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tbyte_r <= {byte_r[8:0], in}; // Mutation: Changed the order of bits in the shift register\n\tend\n\t\t\n\tassign done = (state==DONE);\n\tassign out_byte = done ? byte_r[8:1] : 8'hx;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput [7:0] out_byte,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n reg [9:0] byte_r;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? START : B0;\t// start bit is 0\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = DONE; // Mutation: Direct transition from B7 to DONE instead of STOP\n\t\t\tSTOP: next = in ? DONE : ERR; // stop bit is 1. Idle state is 1.\n\t\t\tDONE: next = in ? START : B0;\n\t\t\tERR: next = in ? START : ERR;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tbyte_r <= {in, byte_r[9:1]};\n\tend\n\t\t\n\tassign done = (state==DONE);\n\tassign out_byte = done ? byte_r[8:1] : 8'hx;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput [7:0] out_byte,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n reg [9:0] byte_r;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? START : B0;\t// start bit is 0\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? DONE : ERR; // stop bit is 1. Idle state is 1.\n\t\t\tDONE: next = in ? ERR : START; // Mutation: Changed the transition condition for DONE state\n\t\t\tERR: next = in ? START : ERR;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tbyte_r <= {in, byte_r[9:1]};\n\tend\n\t\t\n\tassign done = (state==DONE);\n\tassign out_byte = done ? byte_r[8:1] : 8'hx;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput [7:0] out_byte,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n reg [9:0] byte_r;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? B0 : START;\t// Mutation: Altered the START state transition condition\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? DONE : ERR; // stop bit is 1. Idle state is 1.\n\t\t\tDONE: next = in ? START : B0;\n\t\t\tERR: next = in ? START : ERR;\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tbyte_r <= {in, byte_r[9:1]};\n\tend\n\t\t\n\tassign done = (state==DONE);\n\tassign out_byte = done ? byte_r[8:1] : 8'hx;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\tinput reset,\n\toutput [7:0] out_byte,\n\toutput done\n);\n\tparameter B0=0, B1=1, B2=2, B3=3, B4=4, B5=5, B6=6, B7=7, START=8, STOP=9, DONE=10, ERR=11;\n\treg [3:0] state;\n\treg [3:0] next;\n \n reg [9:0] byte_r;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tSTART: next = in ? START : B0;\t// start bit is 0\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B4;\n\t\t\tB4: next = B5;\n\t\t\tB5: next = B6;\n\t\t\tB6: next = B7;\n\t\t\tB7: next = STOP;\n\t\t\tSTOP: next = in ? DONE : ERR; // stop bit is 1. Idle state is 1.\n\t\t\tDONE: next = in ? START : B0;\n\t\t\tERR: next = in ? ERR : START; // Mutation: Made the ERR state transition to itself when 'in' is high\n\t\tendcase\n end\n \n always @(posedge clk) begin\n\t\tif (reset) state <= START;\n else state <= next;\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tbyte_r <= {in, byte_r[9:1]};\n\tend\n\t\t\n\tassign done = (state==DONE);\n\tassign out_byte = done ? byte_r[8:1] : 8'hx;\n\t\nendmodule\n"]}
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{"task_id": "gshare", "mutants": ["module top_module(\n\tinput clk,\n\tinput areset, \n\tinput predict_valid,\n\tinput [6:0] predict_pc,\n\toutput predict_taken, \n\toutput [6:0] predict_history,\n\tinput train_valid,\n\tinput train_taken,\n\tinput train_mispredicted,\n\tinput [6:0] train_history, \n\tinput [6:0] train_pc\n);\n\tparameter n = 7;\n\tlogic [1:0] pht [2**n-1:0];\n\tparameter [1:0] SNT = 0, LNT = 1, LT = 2, ST = 3; // No change here\n\tlogic [n-1:0] predict_history_r;\n\twire [n-1:0] predict_index = predict_history_r ^ predict_pc;\n\twire [n-1:0] train_index = train_history ^ train_pc;\n\n\talways@(posedge clk, posedge areset)\n\t\tif (areset) begin\n\t\t\tfor (integer i=0; i<2**n; i=i+1)\n\t\t\t\tpht[i] = SNT; // Changed from LNT to SNT\n\t\t\tpredict_history_r = 0;\n end\telse begin\n\t\t\tif (predict_valid)\n\t\t\t\tpredict_history_r <= {predict_history_r, predict_taken};\n\t\t\tif(train_valid) begin\n\t\t\t\tif(pht[train_index] < 3 && train_taken)\n\t\t\t\t\tpht[train_index] <= pht[train_index] + 1;\n\t\t\t\telse if(pht[train_index] > 0 && !train_taken)\n\t\t\t\t\tpht[train_index] <= pht[train_index] - 1;\n\t\t\t\tif (train_mispredicted)\n\t\t\t\t\tpredict_history_r <= {train_history, train_taken};\n\t\t\tend\n\t\tend\n\tassign predict_taken = predict_valid ? pht[predict_index][1] : 1'bx;\n\tassign predict_history = predict_valid ? predict_history_r : {n{1'bx}};\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput areset, \n\tinput predict_valid,\n\tinput [6:0] predict_pc,\n\toutput predict_taken, \n\toutput [6:0] predict_history,\n\tinput train_valid,\n\tinput train_taken,\n\tinput train_mispredicted,\n\tinput [6:0] train_history, \n\tinput [6:0] train_pc\n);\n\tparameter n = 7;\n\tlogic [1:0] pht [2**n-1:0];\n\tparameter [1:0] SNT = 0, LNT = 1, LT = 2, ST = 3; // No change here\n\tlogic [n-1:0] predict_history_r;\n\twire [n-1:0] predict_index = predict_history_r ^ predict_pc;\n\twire [n-1:0] train_index = train_history ^ train_pc;\n\n\talways@(posedge clk, posedge areset)\n\t\tif (areset) begin\n\t\t\tfor (integer i=0; i<2**n; i=i+1)\n\t\t\t\tpht[i] = LNT;\n\t\t\tpredict_history_r = 1; // Changed initial value to 1\n end\telse begin\n\t\t\tif (predict_valid)\n\t\t\t\tpredict_history_r <= {predict_history_r, predict_taken};\n\t\t\tif(train_valid) begin\n\t\t\t\tif(pht[train_index] < 3 && train_taken)\n\t\t\t\t\tpht[train_index] <= pht[train_index] + 1;\n\t\t\t\telse if(pht[train_index] > 0 && !train_taken)\n\t\t\t\t\tpht[train_index] <= pht[train_index] - 1;\n\t\t\t\tif (train_mispredicted)\n\t\t\t\t\tpredict_history_r <= {train_history, train_taken};\n\t\t\tend\n\t\tend\n\tassign predict_taken = predict_valid ? pht[predict_index][1] : 1'bx;\n\tassign predict_history = predict_valid ? predict_history_r : {n{1'bx}};\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput areset, \n\tinput predict_valid,\n\tinput [6:0] predict_pc,\n\toutput predict_taken, \n\toutput [6:0] predict_history,\n\tinput train_valid,\n\tinput train_taken,\n\tinput train_mispredicted,\n\tinput [6:0] train_history, \n\tinput [6:0] train_pc\n);\n\tparameter n = 7;\n\tlogic [1:0] pht [2**n-1:0];\n\tparameter [1:0] SNT = 0, LNT = 1, LT = 2, ST = 3; // No change here\n\tlogic [n-1:0] predict_history_r;\n\twire [n-1:0] predict_index = predict_history_r ^ predict_pc;\n\twire [n-1:0] train_index = train_history ^ train_pc;\n\n\talways@(posedge clk, posedge areset)\n\t\tif (areset) begin\n\t\t\tfor (integer i=0; i<2**n; i=i+1)\n\t\t\t\tpht[i] = LNT;\n\t\t\tpredict_history_r = 0;\n end\telse begin\n\t\t\tif (predict_valid)\n\t\t\t\tpredict_history_r <= {predict_history_r[n-2:0], predict_taken}; // Changed shift register operation\n\t\t\tif(train_valid) begin\n\t\t\t\tif(pht[train_index] < 3 && train_taken)\n\t\t\t\t\tpht[train_index] <= pht[train_index] + 1;\n\t\t\t\telse if(pht[train_index] > 0 && !train_taken)\n\t\t\t\t\tpht[train_index] <= pht[train_index] - 1;\n\t\t\t\tif (train_mispredicted)\n\t\t\t\t\tpredict_history_r <= {train_history, train_taken};\n\t\t\tend\n\t\tend\n\tassign predict_taken = predict_valid ? pht[predict_index][1] : 1'bx;\n\tassign predict_history = predict_valid ? predict_history_r : {n{1'bx}};\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput areset, \n\tinput predict_valid,\n\tinput [6:0] predict_pc,\n\toutput predict_taken, \n\toutput [6:0] predict_history,\n\tinput train_valid,\n\tinput train_taken,\n\tinput train_mispredicted,\n\tinput [6:0] train_history, \n\tinput [6:0] train_pc\n);\n\tparameter n = 7;\n\tlogic [1:0] pht [2**n-1:0];\n\tparameter [1:0] SNT = 0, LNT = 1, LT = 2, ST = 3; // No change here\n\tlogic [n-1:0] predict_history_r;\n\twire [n-1:0] predict_index = predict_history_r ^ predict_pc;\n\twire [n-1:0] train_index = train_history ^ train_pc;\n\n\talways@(posedge clk, posedge areset)\n\t\tif (areset) begin\n\t\t\tfor (integer i=0; i<2**n; i=i+1)\n\t\t\t\tpht[i] = LNT;\n\t\t\tpredict_history_r = 0;\n end\telse begin\n\t\t\tif (predict_valid)\n\t\t\t\tpredict_history_r <= {predict_history_r, ~predict_taken}; // Inverted predict_taken in history update\n\t\t\tif(train_valid) begin\n\t\t\t\tif(pht[train_index] < 3 && train_taken)\n\t\t\t\t\tpht[train_index] <= pht[train_index] + 1;\n\t\t\t\telse if(pht[train_index] > 0 && !train_taken)\n\t\t\t\t\tpht[train_index] <= pht[train_index] - 1;\n\t\t\t\tif (train_mispredicted)\n\t\t\t\t\tpredict_history_r <= {train_history, train_taken};\n\t\t\tend\n\t\tend\n\tassign predict_taken = predict_valid ? pht[predict_index][1] : 1'bx;\n\tassign predict_history = predict_valid ? predict_history_r : {n{1'bx}};\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput areset, \n\tinput predict_valid,\n\tinput [6:0] predict_pc,\n\toutput predict_taken, \n\toutput [6:0] predict_history,\n\tinput train_valid,\n\tinput train_taken,\n\tinput train_mispredicted,\n\tinput [6:0] train_history, \n\tinput [6:0] train_pc\n);\n\tparameter n = 7;\n\tlogic [1:0] pht [2**n-1:0];\n\tparameter [1:0] SNT = 0, LNT = 1, LT = 2, ST = 3; // No change here\n\tlogic [n-1:0] predict_history_r;\n\twire [n-1:0] predict_index = predict_history_r ^ predict_pc;\n\twire [n-1:0] train_index = train_history ^ train_pc;\n\n\talways@(posedge clk, posedge areset)\n\t\tif (areset) begin\n\t\t\tfor (integer i=0; i<2**n; i=i+1)\n\t\t\t\tpht[i] = LT; // Changed initialization value of pht from LNT to LT\n\t\t\tpredict_history_r = 0;\n end\telse begin\n\t\t\tif (predict_valid)\n\t\t\t\tpredict_history_r <= {predict_history_r, predict_taken};\n\t\t\tif(train_valid) begin\n\t\t\t\tif(pht[train_index] < 3 && train_taken)\n\t\t\t\t\tpht[train_index] <= pht[train_index] + 1;\n\t\t\t\telse if(pht[train_index] > 0 && !train_taken)\n\t\t\t\t\tpht[train_index] <= pht[train_index] - 1;\n\t\t\t\tif (train_mispredicted)\n\t\t\t\t\tpredict_history_r <= {train_history, train_taken};\n\t\t\tend\n\t\tend\n\tassign predict_taken = predict_valid ? pht[predict_index][1] : 1'bx;\n\tassign predict_history = predict_valid ? predict_history_r : {n{1'bx}};\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput areset, \n\tinput predict_valid,\n\tinput [6:0] predict_pc,\n\toutput predict_taken, \n\toutput [6:0] predict_history,\n\tinput train_valid,\n\tinput train_taken,\n\tinput train_mispredicted,\n\tinput [6:0] train_history, \n\tinput [6:0] train_pc\n);\n\tparameter n = 7;\n\tlogic [1:0] pht [2**n-1:0];\n\tparameter [1:0] SNT = 0, LNT = 1, LT = 2, ST = 3; // No change here\n\tlogic [n-1:0] predict_history_r;\n\twire [n-1:0] predict_index = predict_history_r ^ predict_pc;\n\twire [n-1:0] train_index = train_history ^ train_pc;\n\n\talways@(posedge clk, posedge areset)\n\t\tif (areset) begin\n\t\t\tfor (integer i=0; i<2**n; i=i+1)\n\t\t\t\tpht[i] = LNT;\n\t\t\tpredict_history_r = 0;\n end\telse begin\n\t\t\tif (predict_valid)\n\t\t\t\tpredict_history_r <= {predict_history_r, predict_taken};\n\t\t\tif(train_valid) begin\n\t\t\t\tif(pht[train_index] < 3 && train_taken)\n\t\t\t\t\tpht[train_index] <= pht[train_index] + 1;\n\t\t\t\telse if(pht[train_index] > 0 && !train_taken)\n\t\t\t\t\tpht[train_index] <= pht[train_index] - 1;\n\t\t\t\tif (train_mispredicted)\n\t\t\t\t\tpredict_history_r <= {train_history, !train_taken}; // Inverted train_taken in history update on misprediction\n\t\t\tend\n\t\tend\n\tassign predict_taken = predict_valid ? pht[predict_index][1] : 1'bx;\n\tassign predict_history = predict_valid ? predict_history_r : {n{1'bx}};\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput areset, \n\tinput predict_valid,\n\tinput [6:0] predict_pc,\n\toutput predict_taken, \n\toutput [6:0] predict_history,\n\tinput train_valid,\n\tinput train_taken,\n\tinput train_mispredicted,\n\tinput [6:0] train_history, \n\tinput [6:0] train_pc\n);\n\tparameter n = 7;\n\tlogic [1:0] pht [2**n-1:0];\n\tparameter [1:0] SNT = 0, LNT = 1, LT = 2, ST = 3; // No change here\n\tlogic [n-1:0] predict_history_r;\n\twire [n-1:0] predict_index = predict_history_r ^ predict_pc;\n\twire [n-1:0] train_index = train_history ^ train_pc;\n\n\talways@(posedge clk, posedge areset)\n\t\tif (areset) begin\n\t\t\tfor (integer i=0; i<2**n; i=i+1)\n\t\t\t\tpht[i] = LNT;\n\t\t\tpredict_history_r = 0;\n end\telse begin\n\t\t\tif (predict_valid)\n\t\t\t\tpredict_history_r <= {predict_history_r[n-2:0], 1'b0}; // Modified to insert a fixed bit instead of predict_taken\n\t\t\tif(train_valid) begin\n\t\t\t\tif(pht[train_index] < 3 && train_taken)\n\t\t\t\t\tpht[train_index] <= pht[train_index] + 1;\n\t\t\t\telse if(pht[train_index] > 0 && !train_taken)\n\t\t\t\t\tpht[train_index] <= pht[train_index] - 1;\n\t\t\t\tif (train_mispredicted)\n\t\t\t\t\tpredict_history_r <= {train_history, train_taken};\n\t\t\tend\n\t\tend\n\tassign predict_taken = predict_valid ? pht[predict_index][1] : 1'bx;\n\tassign predict_history = predict_valid ? predict_history_r : {n{1'bx}};\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput areset, \n\tinput predict_valid,\n\tinput [6:0] predict_pc,\n\toutput predict_taken, \n\toutput [6:0] predict_history,\n\tinput train_valid,\n\tinput train_taken,\n\tinput train_mispredicted,\n\tinput [6:0] train_history, \n\tinput [6:0] train_pc\n);\n\tparameter n = 7;\n\tlogic [1:0] pht [2**n-1:0];\n\tparameter [1:0] SNT = 0, LNT = 1, LT = 2, ST = 3; // No change here\n\tlogic [n-1:0] predict_history_r;\n\twire [n-1:0] predict_index = predict_history_r ^ predict_pc;\n\twire [n-1:0] train_index = train_history ^ train_pc;\n\n\talways@(posedge clk, posedge areset)\n\t\tif (areset) begin\n\t\t\tfor (integer i=0; i<2**n; i=i+1)\n\t\t\t\tpht[i] = LNT;\n\t\t\tpredict_history_r = 7'b0101010; // Changed the initial value of predict_history_r with a fixed pattern\n end\telse begin\n\t\t\tif (predict_valid)\n\t\t\t\tpredict_history_r <= {predict_history_r, predict_taken};\n\t\t\tif(train_valid) begin\n\t\t\t\tif(pht[train_index] < 3 && train_taken)\n\t\t\t\t\tpht[train_index] <= pht[train_index] + 1;\n\t\t\t\telse if(pht[train_index] > 0 && !train_taken)\n\t\t\t\t\tpht[train_index] <= pht[train_index] - 1;\n\t\t\t\tif (train_mispredicted)\n\t\t\t\t\tpredict_history_r <= {train_history, train_taken};\n\t\t\tend\n\t\tend\n\tassign predict_taken = predict_valid ? pht[predict_index][1] : 1'bx;\n\tassign predict_history = predict_valid ? predict_history_r : {n{1'bx}};\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput areset, \n\tinput predict_valid,\n\tinput [6:0] predict_pc,\n\toutput predict_taken, \n\toutput [6:0] predict_history,\n\tinput train_valid,\n\tinput train_taken,\n\tinput train_mispredicted,\n\tinput [6:0] train_history, \n\tinput [6:0] train_pc\n);\n\tparameter n = 7;\n\tlogic [1:0] pht [2**n-1:0];\n\tparameter [1:0] SNT = 0, LNT = 1, LT = 2, ST = 3; // No change here\n\tlogic [n-1:0] predict_history_r;\n\twire [n-1:0] predict_index = predict_history_r ^ predict_pc;\n\twire [n-1:0] train_index = train_history ^ train_pc;\n\n\talways@(posedge clk, posedge areset)\n\t\tif (areset) begin\n\t\t\tfor (integer i=0; i<2**n; i=i+1)\n\t\t\t\tpht[i] = LNT;\n\t\t\tpredict_history_r = 0;\n end\telse begin\n\t\t\tif (predict_valid)\n\t\t\t\tpredict_history_r <= {predict_history_r[n-2:0], predict_taken}; // Modified shift operation\n\t\t\tif(train_valid) begin\n\t\t\t\tif(pht[train_index] == 3 && train_taken) // Changed < 3 to == 3\n\t\t\t\t\tpht[train_index] <= pht[train_index] + 1;\n\t\t\t\telse if(pht[train_index] > 0 && !train_taken)\n\t\t\t\t\tpht[train_index] <= pht[train_index] - 1;\n\t\t\t\tif (train_mispredicted)\n\t\t\t\t\tpredict_history_r <= {train_history, train_taken};\n\t\t\tend\n\t\tend\n\tassign predict_taken = predict_valid ? pht[predict_index][1] : 1'bx;\n\tassign predict_history = predict_valid ? predict_history_r : {n{1'bx}};\nendmodule\n"]}
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{"task_id": "lemmings4", "mutants": ["module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\tinput dig,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah,\n\toutput digging\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3, DIGL=4, DIGR=5, DEAD=6;\n\treg [2:0] state;\n\treg [2:0] next;\n \n reg [4:0] fall_counter;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: if (!ground) next = FALLL;\n\t\t\t\telse if (dig) next = DIGL;\n\t\t\t\telse if (bump_left) next = WR;\n\t\t\t\telse next = WL;\n\t\t\tWR: \n\t\t\t\tif (!ground) next = FALLR;\n\t\t\t\telse if (dig) next = DIGR;\n\t\t\t\telse if (bump_right) next = WL;\n\t\t\t\telse next = WR;\n\t\t\tFALLL: next = ground ? (fall_counter >= 20 ? DEAD : WL) : FALLL; // Mutation: Condition unchanged, demonstrating no mutation here, mistake in description\n\t\t\tFALLR: next = ground ? (fall_counter >= 21 ? DEAD : WR) : FALLR; // Changed fall_counter >= 20 to fall_counter >= 21\n\t\t\tDIGL: next = ground ? DIGL : FALLL;\n\t\t\tDIGR: next = ground ? DIGR : FALLR;\n\t\t\tDEAD: next = DEAD;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (state == FALLL || state == FALLR) begin\n\t\t\tif (fall_counter < 20) // Mutation note: no change here, accidental duplicate in description\n\t\t\t\tfall_counter <= fall_counter + 1'b1;\n\t\tend\n\t\telse\n\t\t\tfall_counter <= 0;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\tassign digging = (state == DIGL) || (state == DIGR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\tinput dig,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah,\n\toutput digging\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3, DIGL=4, DIGR=5, DEAD=6;\n\treg [2:0] state;\n\treg [2:0] next;\n \n reg [4:0] fall_counter = 5'b1; // Initialized fall_counter to 1 instead of 0\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: if (!ground) next = FALLL;\n\t\t\t\telse if (dig) next = DIGL;\n\t\t\t\telse if (bump_left) next = WR;\n\t\t\t\telse next = WL;\n\t\t\tWR: \n\t\t\t\tif (!ground) next = FALLR;\n\t\t\t\telse if (dig) next = DIGR;\n\t\t\t\telse if (bump_right) next = WL;\n\t\t\t\telse next = WR;\n\t\t\tFALLL: next = ground ? (fall_counter >= 20 ? DEAD : WL) : FALLL;\n\t\t\tFALLR: next = ground ? (fall_counter >= 20 ? DEAD : WR) : FALLR;\n\t\t\tDIGL: next = ground ? DIGL : FALLL;\n\t\t\tDIGR: next = ground ? DIGR : FALLR;\n\t\t\tDEAD: next = DEAD;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (state == FALLL || state == FALLR) begin\n\t\t\tif (fall_counter < 20) \n\t\t\t\tfall_counter <= fall_counter + 1'b1;\n\t\tend\n\t\telse\n\t\t\tfall_counter <= 0;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\tassign digging = (state == DIGL) || (state == DIGR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\tinput dig,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah,\n\toutput digging\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3, DIGL=4, DIGR=5, DEAD=6;\n\treg [2:0] state;\n\treg [2:0] next;\n \n reg [4:0] fall_counter;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: if (!ground) next = FALLL;\n\t\t\t\telse if (dig) next = DIGL;\n\t\t\t\telse if (bump_left) next = WR;\n\t\t\t\telse next = WL;\n\t\t\tWR: \n\t\t\t\tif (!ground) next = FALLR;\n\t\t\t\telse if (dig) next = DIGR;\n\t\t\t\telse if (bump_right) next = WL;\n\t\t\t\telse next = WR;\n\t\t\tFALLL: if (!ground) next = FALLL; // Removed condition check for ground in FALLL\n\t\t\t\t\telse next = (fall_counter >= 20 ? DEAD : WL);\n\t\t\tFALLR: next = ground ? (fall_counter >= 20 ? DEAD : WR) : FALLR;\n\t\t\tDIGL: next = ground ? DIGL : FALLL;\n\t\t\tDIGR: next = ground ? DIGR : FALLR;\n\t\t\tDEAD: next = DEAD;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (state == FALLL || state == FALLR) begin\n\t\t\tif (fall_counter < 20) \n\t\t\t\tfall_counter <= fall_counter + 1'b1;\n\t\tend\n\t\telse\n\t\t\tfall_counter <= 0;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\tassign digging = (state == DIGL) || (state == DIGR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\tinput dig,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah,\n\toutput digging\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3, DIGL=4, DIGR=5, DEAD=6;\n\treg [2:0] state;\n\treg [2:0] next;\n \n reg [4:0] fall_counter;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: if (!ground) next = FALLL;\n\t\t\t\telse if (dig) next = DIGL;\n\t\t\t\telse if (bump_left) next = WR;\n\t\t\t\telse next = WL;\n\t\t\tWR: \n\t\t\t\tif (!ground) next = FALLR;\n\t\t\t\telse if (dig) next = DIGR; // Removed the bump_right condition making it impossible to switch to WL from WR\n\t\t\t\telse next = WR;\n\t\t\tFALLL: next = ground ? (fall_counter >= 20 ? DEAD : WL) : FALLL;\n\t\t\tFALLR: next = ground ? (fall_counter >= 20 ? DEAD : WR) : FALLR;\n\t\t\tDIGL: next = ground ? DIGL : FALLL;\n\t\t\tDIGR: next = ground ? DIGR : FALLR;\n\t\t\tDEAD: next = DEAD;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (state == FALLL || state == FALLR) begin\n\t\t\tif (fall_counter < 20) \n\t\t\t\tfall_counter <= fall_counter + 1'b1;\n\t\tend\n\t\telse\n\t\t\tfall_counter <= 0;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\tassign digging = (state == DIGL) || (state == DIGR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\tinput dig,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah,\n\toutput digging\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3, DIGL=4, DIGR=5, DEAD=6;\n\treg [2:0] state;\n\treg [2:0] next;\n \n reg [4:0] fall_counter;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: if (!ground) next = FALLL;\n\t\t\t\telse if (dig) next = DIGL;\n\t\t\t\telse if (bump_left) next = WR;\n\t\t\t\telse next = WL;\n\t\t\tWR: \n\t\t\t\tif (!ground) next = FALLR;\n\t\t\t\telse if (dig) next = DIGR;\n\t\t\t\telse if (bump_right) next = WL;\n\t\t\t\telse next = WR;\n\t\t\tFALLL: next = ground ? (fall_counter >= 19 ? DEAD : WL) : FALLL; // Changed fall_counter >= 20 to fall_counter >= 19\n\t\t\tFALLR: next = ground ? (fall_counter >= 20 ? DEAD : WR) : FALLR;\n\t\t\tDIGL: next = ground ? DIGL : FALLL;\n\t\t\tDIGR: next = ground ? DIGR : FALLR;\n\t\t\tDEAD: next = DEAD;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (state == FALLL || state == FALLR) begin\n\t\t\tif (fall_counter < 20) \n\t\t\t\tfall_counter <= fall_counter + 1'b1;\n\t\tend\n\t\telse\n\t\t\tfall_counter <= 0;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\tassign digging = (state == DIGL) || (state == DIGR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\tinput dig,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah,\n\toutput digging\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3, DIGL=4, DIGR=5, DEAD=6;\n\treg [2:0] state;\n\treg [2:0] next;\n \n reg [4:0] fall_counter;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: if (!ground) next = FALLL;\n\t\t\t\telse if (dig) next = DIGL;\n\t\t\t\telse if (bump_left) next = WR;\n\t\t\t\telse next = WL;\n\t\t\tWR: \n\t\t\t\tif (!ground) next = FALLR;\n\t\t\t\telse if (dig) next = DIGR;\n\t\t\t\telse if (bump_right) next = WL;\n\t\t\t\telse next = WR;\n\t\t\tFALLL: next = ground ? (fall_counter > 20 ? DEAD : WL) : FALLL; // Changed fall_counter >= 20 to fall_counter > 20\n\t\t\tFALLR: next = ground ? (fall_counter >= 20 ? DEAD : WR) : FALLR;\n\t\t\tDIGL: next = !ground ? DIGL : FALLL; // Changed condition for DIGL\n\t\t\tDIGR: next = ground ? DIGR : FALLR;\n\t\t\tDEAD: next = DEAD;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (state == FALLL || state == FALLR) begin\n\t\t\tif (fall_counter < 20) \n\t\t\t\tfall_counter <= fall_counter + 1'b1;\n\t\tend\n\t\telse\n\t\t\tfall_counter <= 0;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\tassign digging = (state == DIGL) || (state == DIGR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\tinput dig,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah,\n\toutput digging\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3, DIGL=4, DIGR=5, DEAD=6;\n\treg [2:0] state;\n\treg [2:0] next;\n \n reg [4:0] fall_counter;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: if (!ground) next = FALLL;\n\t\t\t\telse if (dig) next = DIGL;\n\t\t\t\telse if (bump_left) next = WR;\n\t\t\t\telse next = WL;\n\t\t\tWR: \n\t\t\t\tif (!ground) next = FALLR;\n\t\t\t\telse if (dig) next = DIGR;\n\t\t\t\telse if (bump_right) next = WL;\n\t\t\t\telse next = WR;\n\t\t\tFALLL: next = ground ? (fall_counter >= 20 ? DEAD : WL) : FALLL;\n\t\t\tFALLR: next = ground ? (fall_counter >= 20 ? DEAD : WR) : FALLR;\n\t\t\tDIGL: next = ground ? DIGL : FALLL;\n\t\t\tDIGR: next = ground ? DIGR : FALLR;\n\t\t\tDEAD: next = DEAD;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WR; // Changed the initial state from WL to WR\n else state <= next;\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (state == FALLL || state == FALLR) begin\n\t\t\tif (fall_counter < 20) \n\t\t\t\tfall_counter <= fall_counter + 1'b1;\n\t\tend\n\t\telse\n\t\t\tfall_counter <= 0;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\tassign digging = (state == DIGL) || (state == DIGR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\tinput dig,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah,\n\toutput digging\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3, DIGL=4, DIGR=5, DEAD=6;\n\treg [2:0] state;\n\treg [2:0] next;\n \n reg [4:0] fall_counter;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: if (!ground) next = FALLL;\n\t\t\t\telse if (dig) next = DIGL;\n\t\t\t\telse if (bump_left) next = WR;\n\t\t\t\telse next = WL;\n\t\t\tWR: \n\t\t\t\tif (!ground) next = FALLR;\n\t\t\t\telse if (dig) next = DIGR;\n\t\t\t\telse if (bump_right) next = WL;\n\t\t\t\telse next = WR;\n\t\t\tFALLL: next = ground ? (fall_counter >= 20 ? DEAD : WR) : FALLL; // Changed the recovery state from WL to WR\n\t\t\tFALLR: next = ground ? (fall_counter >= 20 ? DEAD : WR) : FALLR;\n\t\t\tDIGL: next = ground ? DIGL : FALLL;\n\t\t\tDIGR: next = ground ? DIGR : FALLR;\n\t\t\tDEAD: next = DEAD;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (state == FALLL || state == FALLR) begin\n\t\t\tif (fall_counter < 20) \n\t\t\t\tfall_counter <= fall_counter + 1'b1;\n\t\tend\n\t\telse\n\t\t\tfall_counter <= 0;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\tassign digging = (state == DIGL) || (state == DIGR);\n\t\nendmodule\n"]}
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{"task_id": "review2015_fsm", "mutants": ["module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n output reg shift_ena,\n output reg counting,\n input done_counting,\n output reg done,\n input ack );\n\n\ttypedef enum logic[3:0] {\n\t\tS, S1, S11, S110, B0, B1, B2, B3, Count, Wait\n\t} States;\n\t\n\tStates state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = States'(data ? S1: S);\n\t\t\tS1: next = States'(data ? S11: S);\n\t\t\tS11: next = States'(data ? S11 : S110);\n\t\t\tS110: next = States'(data ? B0 : S);\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = Count;\n\t\t\tCount: next = States'(done_counting ? Wait : Count);\n\t\t\tWait: next = States'(ack ? S : Wait);\n\t\t\tdefault: next = States'(4'bz); // Changed 4'bx to 4'bz\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\tend\n\t\t\n\talways_comb begin\n\t\tshift_ena = 0; counting = 0; done = 0;\n\t\tif (state == B0 || state == B1 || state == B2 || state == B3)\n\t\t\tshift_ena = 1;\n\t\tif (state == Count)\n\t\t\tcounting = 1;\n\t\tif (state == Wait)\n\t\t\tdone = 1;\n\n\t\tif (|state === 1'bx) begin\n\t\t\t{shift_ena, counting, done} = 'x;\n\t\tend\n\t\t\n\tend\n\t\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n output reg shift_ena,\n output reg counting,\n input done_counting,\n output reg done,\n input ack );\n\n\ttypedef enum logic[3:0] {\n\t\tS, S1, S11, S110, B0, B1, B2, B3, Count, Wait\n\t} States;\n\t\n\tStates state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = States'(data ? S1: S);\n\t\t\tS1: next = States'(data ? S11: S);\n\t\t\tS11: next = States'(data ? S110 : S110); // Minor change: S11 to S110 on true condition\n\t\t\tS110: next = States'(data ? B0 : S);\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = Count;\n\t\t\tCount: next = States'(done_counting ? Wait : Count);\n\t\t\tWait: next = States'(ack ? S : Wait);\n\t\t\tdefault: next = States'(4'bx);\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\tend\n\t\t\n\talways_comb begin\n\t\tshift_ena = 0; counting = 0; done = 0;\n\t\tif (state == B0 || state == B1 || state == B2 || state == B3)\n\t\t\tshift_ena = 1;\n\t\tif (state == Count)\n\t\t\tcounting = 1;\n\t\tif (state == Wait)\n\t\t\tdone = 1;\n\n\t\tif (|state === 1'bx) begin\n\t\t\t{shift_ena, counting, done} = 'x;\n\t\tend\n\t\t\n\tend\n\t\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n output reg shift_ena,\n output reg counting,\n input done_counting,\n output reg done,\n input ack );\n\n\ttypedef enum logic[3:0] {\n\t\tS, S1, S11, S110, B0, B1, B2, B3, Count, Wait\n\t} States;\n\t\n\tStates state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = States'(data ? S1: S);\n\t\t\tS1: next = States'(data ? S11: S);\n\t\t\tS11: next = States'(data ? S11 : S110);\n\t\t\tS110: next = States'(data ? B0 : S);\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = Count;\n\t\t\tCount: next = States'(done_counting ? Wait : Count);\n\t\t\tWait: next = States'(ack ? S1 : Wait); // Changed S to S1 on ack condition\n\t\t\tdefault: next = States'(4'bx);\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\tend\n\t\t\n\talways_comb begin\n\t\tshift_ena = 0; counting = 0; done = 0;\n\t\tif (state == B0 || state == B1 || state == B2 || state == B3)\n\t\t\tshift_ena = 1;\n\t\tif (state == Count)\n\t\t\tcounting = 1;\n\t\tif (state == Wait)\n\t\t\tdone = 1;\n\n\t\tif (|state === 1'bx) begin\n\t\t\t{shift_ena, counting, done} = 'x;\n\t\tend\n\t\t\n\tend\n\t\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n output reg shift_ena,\n output reg counting,\n input done_counting,\n output reg done,\n input ack );\n\n\ttypedef enum logic[3:0] {\n\t\tS, S1, S11, S110, B0, B1, B2, B3, Count, Wait\n\t} States;\n\t\n\tStates state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = States'(data ? S1: S);\n\t\t\tS1: next = States'(data ? S11: S);\n\t\t\tS11: next = States'(data ? S11 : S110);\n\t\t\tS110: next = States'(data ? B0 : S110); // Minor change: S to S110 on false condition\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = Count;\n\t\t\tCount: next = States'(done_counting ? Wait : Count);\n\t\t\tWait: next = States'(ack ? S : Wait);\n\t\t\tdefault: next = States'(4'bx);\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\tend\n\t\t\n\talways_comb begin\n\t\tshift_ena = 0; counting = 0; done = 0;\n\t\tif (state == B0 || state == B1 || state == B2 || state == B3)\n\t\t\tshift_ena = 1;\n\t\tif (state == Count)\n\t\t\tcounting = 1;\n\t\tif (state == Wait)\n\t\t\tdone = 1;\n\n\t\tif (|state === 1'bx) begin\n\t\t\t{shift_ena, counting, done} = 'x;\n\t\tend\n\t\t\n\tend\n\t\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n output reg shift_ena,\n output reg counting,\n input done_counting,\n output reg done,\n input ack );\n\n\ttypedef enum logic[3:0] {\n\t\tS, S1, S11, S110, B0, B1, B2, B3, Count, Wait\n\t} States;\n\t\n\tStates state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = States'(data ? S1: S);\n\t\t\tS1: next = States'(data ? S11: S);\n\t\t\tS11: next = States'(data ? S11 : S110);\n\t\t\tS110: next = States'(data ? B0 : S);\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = Count;\n\t\t\tCount: next = States'(done_counting ? S : Count); // Changed Wait to S on true condition\n\t\t\tWait: next = States'(ack ? S : Wait);\n\t\t\tdefault: next = States'(4'bx);\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\tend\n\t\t\n\talways_comb begin\n\t\tshift_ena = 0; counting = 0; done = 0;\n\t\tif (state == B0 || state == B1 || state == B2 || state == B3)\n\t\t\tshift_ena = 1;\n\t\tif (state == Count)\n\t\t\tcounting = 1;\n\t\tif (state == Wait)\n\t\t\tdone = 1;\n\n\t\tif (|state === 1'bx) begin\n\t\t\t{shift_ena, counting, done} = 'x;\n\t\tend\n\t\t\n\tend\n\t\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n output reg shift_ena,\n output reg counting,\n input done_counting,\n output reg done,\n input ack );\n\n\ttypedef enum logic[3:0] {\n\t\tS, S1, S11, S110, B0, B1, B2, B3, Count, Wait\n\t} States;\n\t\n\tStates state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = States'(data ? S1: S);\n\t\t\tS1: next = States'(data ? S11: S);\n\t\t\tS11: next = States'(data ? S110 : S110); // Change here, making S11 transition on true condition redundant\n\t\t\tS110: next = States'(data ? B0 : S);\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = Count;\n\t\t\tCount: next = States'(done_counting ? Wait : Count);\n\t\t\tWait: next = States'(ack ? S : Wait);\n\t\t\tdefault: next = States'(4'bx);\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\tend\n\t\t\n\talways_comb begin\n\t\tshift_ena = 0; counting = 0; done = 0;\n\t\tif (state == B0 || state == B1 || state == B2 || state == B3)\n\t\t\tshift_ena = 1;\n\t\tif (state == Count)\n\t\t\tcounting = 1;\n\t\tif (state == Wait)\n\t\t\tdone = 1;\n\n\t\tif (|state === 1'bx) begin\n\t\t\t{shift_ena, counting, done} = 'x;\n\t\tend\n\t\t\n\tend\n\t\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n output reg shift_ena,\n output reg counting,\n input done_counting,\n output reg done,\n input ack );\n\n\ttypedef enum logic[3:0] {\n\t\tS, S1, S11, S110, B0, B1, B2, B3, Count, Wait\n\t} States;\n\t\n\tStates state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = States'(data ? S1: S);\n\t\t\tS1: next = States'(data ? S11: S);\n\t\t\tS11: next = States'(data ? S11 : S);\n\t\t\tS110: next = States'(data ? B0 : S); // Minor change: S110's false condition from S110 to S\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = Count;\n\t\t\tCount: next = States'(done_counting ? Wait : Count);\n\t\t\tWait: next = States'(ack ? S : Wait);\n\t\t\tdefault: next = States'(4'bx);\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\tend\n\t\t\n\talways_comb begin\n\t\tshift_ena = 0; counting = 0; done = 0;\n\t\tif (state == B0 || state == B1 || state == B2 || state == B3)\n\t\t\tshift_ena = 1;\n\t\tif (state == Count)\n\t\t\tcounting = 1;\n\t\tif (state == Wait)\n\t\t\tdone = 1;\n\n\t\tif (|state === 1'bx) begin\n\t\t\t{shift_ena, counting, done} = 'x;\n\t\tend\n\t\t\n\tend\n\t\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n output reg shift_ena,\n output reg counting,\n input done_counting,\n output reg done,\n input ack );\n\n\ttypedef enum logic[3:0] {\n\t\tS, S1, S11, S110, B0, B1, B2, B3, Count, Wait\n\t} States;\n\t\n\tStates state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = States'(data ? S1: S);\n\t\t\tS1: next = States'(data ? S11: S);\n\t\t\tS11: next = States'(data ? S11 : S110);\n\t\t\tS110: next = States'(data ? B0 : S);\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = Count;\n\t\t\tCount: next = States'(done_counting ? Wait : Count);\n\t\t\tWait: next = States'(ack ? Wait : S); // Changed ack condition's true and false branches\n\t\t\tdefault: next = States'(4'bx);\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\tend\n\t\t\n\talways_comb begin\n\t\tshift_ena = 0; counting = 0; done = 0;\n\t\tif (state == B0 || state == B1 || state == B2 || state == B3)\n\t\t\tshift_ena = 1;\n\t\tif (state == Count)\n\t\t\tcounting = 1;\n\t\tif (state == Wait)\n\t\t\tdone = 1;\n\n\t\tif (|state === 1'bx) begin\n\t\t\t{shift_ena, counting, done} = 'x;\n\t\tend\n\t\t\n\tend\n\t\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n output reg shift_ena,\n output reg counting,\n input done_counting,\n output reg done,\n input ack );\n\n\ttypedef enum logic[3:0] {\n\t\tS, S1, S11, S110, B0, B1, B2, B3, Count, Wait\n\t} States;\n\t\n\tStates state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = States'(data ? S1: S);\n\t\t\tS1: next = States'(data ? S11: S);\n\t\t\tS11: next = States'(data ? S11 : S110);\n\t\t\tS110: next = States'(data ? B0 : S);\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B2; // Minor change: B2 stays in B2 instead of moving to B3\n\t\t\tB3: next = Count;\n\t\t\tCount: next = States'(done_counting ? Wait : Count);\n\t\t\tWait: next = States'(ack ? S : Wait);\n\t\t\tdefault: next = States'(4'bx);\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\tend\n\t\t\n\talways_comb begin\n\t\tshift_ena = 0; counting = 0; done = 0;\n\t\tif (state == B0 || state == B1 || state == B2 || state == B3)\n\t\t\tshift_ena = 1;\n\t\tif (state == Count)\n\t\t\tcounting = 1;\n\t\tif (state == Wait)\n\t\t\tdone = 1;\n\n\t\tif (|state === 1'bx) begin\n\t\t\t{shift_ena, counting, done} = 'x;\n\t\tend\n\t\t\n\tend\n\t\n\t\nendmodule\n"]}
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{"task_id": "lemmings3", "mutants": ["module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\tinput dig,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah,\n\toutput digging\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3, DIGL=4, DIGR=5;\n\treg [2:0] state;\n\treg [2:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: if (!ground) next = FALLL;\n\t\t\t\telse if (dig) next = DIGL; // No change here\n\t\t\t\telse if (bump_left) next = WR; // Change: No modification for bump_left condition\n\t\t\t\telse next = WR; // Minor change: Default next state for WL changed to WR\n\t\t\tWR: \n\t\t\t\tif (!ground) next = FALLR;\n\t\t\t\telse if (dig) next = DIGR;\n\t\t\t\telse if (bump_right) next = WL;\n\t\t\t\telse next = WR;\n\t\t\tFALLL: next = ground ? WL : FALLL;\n\t\t\tFALLR: next = ground ? WR : FALLR;\n\t\t\tDIGL: next = ground ? DIGL : FALLL;\n\t\t\tDIGR: next = ground ? DIGR : FALLR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\tassign digging = (state == DIGL) || (state == DIGR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\tinput dig,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah,\n\toutput digging\n);\n\tparameter WL=0, WR=1, FALLL=3, FALLR=2, DIGL=4, DIGR=5; // Minor change: Swapped FALLL and FALLR values\n\treg [2:0] state;\n\treg [2:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: if (!ground) next = FALLL;\n\t\t\t\telse if (dig) next = DIGL;\n\t\t\t\telse if (bump_left) next = WR;\n\t\t\t\telse next = WL;\n\t\t\tWR: \n\t\t\t\tif (!ground) next = FALLR;\n\t\t\t\telse if (dig) next = DIGR;\n\t\t\t\telse if (bump_right) next = WL;\n\t\t\t\telse next = WR;\n\t\t\tFALLL: next = ground ? WL : FALLL;\n\t\t\tFALLR: next = ground ? WR : FALLR;\n\t\t\tDIGL: next = ground ? DIGL : FALLL;\n\t\t\tDIGR: next = ground ? DIGR : FALLR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\tassign digging = (state == DIGL) || (state == DIGR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\tinput dig,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah,\n\toutput digging\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3, DIGL=4, DIGR=4; // Minor change: Same value for DIGL and DIGR\n\treg [2:0] state;\n\treg [2:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: if (!ground) next = FALLL;\n\t\t\t\telse if (dig) next = DIGL;\n\t\t\t\telse if (bump_left) next = WR;\n\t\t\t\telse next = WL;\n\t\t\tWR: \n\t\t\t\tif (!ground) next = FALLR;\n\t\t\t\telse if (dig) next = DIGR;\n\t\t\t\telse if (bump_right) next = WL;\n\t\t\t\telse next = WR;\n\t\t\tFALLL: next = ground ? WL : FALLL;\n\t\t\tFALLR: next = ground ? WR : FALLR;\n\t\t\tDIGL: next = ground ? DIGL : FALLL;\n\t\t\tDIGR: next = ground ? DIGR : FALLR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\tassign digging = (state == DIGL) || (state == DIGR); // Change has no practical effect due to parameter value match\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\tinput dig,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah,\n\toutput digging\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3, DIGL=4, DIGR=5;\n\treg [2:0] state;\n\treg [2:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: if (!ground) next = FALLL;\n\t\t\t\telse if (dig) next = DIGL;\n\t\t\t\telse if (bump_left) next = WR;\n\t\t\t\telse next = WL;\n\t\t\tWR: \n\t\t\t\tif (!ground) next = FALLR;\n\t\t\t\telse if (dig) next = DIGR; // Change: No modification for dig condition\n\t\t\t\telse if (bump_right) next = WL;\n\t\t\t\telse next = WL; // Minor change: Default next state for WR changed to WL\n\t\t\tFALLL: next = ground ? WL : FALLL;\n\t\t\tFALLR: next = ground ? WR : FALLR;\n\t\t\tDIGL: next = ground ? DIGL : FALLL;\n\t\t\tDIGR: next = ground ? DIGR : FALLR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\tassign digging = (state == DIGL) || (state == DIGR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\tinput dig,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah,\n\toutput digging\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3, DIGL=4, DIGR=5;\n\treg [2:0] state;\n\treg [3:0] next; // Minor change: Increase the size of next from [2:0] to [3:0]\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: if (!ground) next = FALLL;\n\t\t\t\telse if (dig) next = DIGL;\n\t\t\t\telse if (bump_left) next = WR;\n\t\t\t\telse next = WL;\n\t\t\tWR: \n\t\t\t\tif (!ground) next = FALLR;\n\t\t\t\telse if (dig) next = DIGR;\n\t\t\t\telse if (bump_right) next = WL;\n\t\t\t\telse next = WR;\n\t\t\tFALLL: next = ground ? WL : FALLL;\n\t\t\tFALLR: next = ground ? WR : FALLR;\n\t\t\tDIGL: next = ground ? DIGL : FALLL;\n\t\t\tDIGR: next = ground ? DIGR : FALLR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next[2:0]; // Adjust for the change in the size of next\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\tassign digging = (state == DIGL) || (state == DIGR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\tinput dig,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah,\n\toutput digging\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3, DIGL=5, DIGR=4; // Minor change: Swapped DIGL and DIGR values\n\treg [2:0] state;\n\treg [2:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: if (!ground) next = FALLL;\n\t\t\t\telse if (dig) next = DIGL;\n\t\t\t\telse if (bump_left) next = WR;\n\t\t\t\telse next = WL;\n\t\t\tWR: \n\t\t\t\tif (!ground) next = FALLR;\n\t\t\t\telse if (dig) next = DIGR;\n\t\t\t\telse if (bump_right) next = WL;\n\t\t\t\telse next = WR;\n\t\t\tFALLL: next = ground ? WL : FALLL;\n\t\t\tFALLR: next = ground ? WR : FALLR;\n\t\t\tDIGL: next = ground ? DIGL : FALLL;\n\t\t\tDIGR: next = ground ? DIGR : FALLR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\tassign digging = (state == DIGL) || (state == DIGR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\tinput dig,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah,\n\toutput digging\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3, DIGL=4, DIGR=5;\n\treg [2:0] state;\n\treg [2:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: if (!ground) next = FALLR; // Minor change: next state on !ground changed to FALLR for WL\n\t\t\t\telse if (dig) next = DIGL;\n\t\t\t\telse if (bump_left) next = WR;\n\t\t\t\telse next = WL;\n\t\t\tWR: \n\t\t\t\tif (!ground) next = FALLL; // Minor change: next state on !ground changed to FALLL for WR\n\t\t\t\telse if (dig) next = DIGR;\n\t\t\t\telse if (bump_right) next = WL;\n\t\t\t\telse next = WR;\n\t\t\tFALLL: next = ground ? WL : FALLL;\n\t\t\tFALLR: next = ground ? WR : FALLR;\n\t\t\tDIGL: next = ground ? DIGL : FALLL;\n\t\t\tDIGR: next = ground ? DIGR : FALLR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\tassign digging = (state == DIGL) || (state == DIGR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\tinput dig,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah,\n\toutput digging\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3, DIGL=4, DIGR=5;\n\treg [2:0] state;\n\treg [2:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: if (!ground) next = FALLL;\n\t\t\t\telse if (dig) next = WR; // Minor change: next state on dig changed to WR for WL\n\t\t\t\telse if (bump_left) next = WR;\n\t\t\t\telse next = WL;\n\t\t\tWR: \n\t\t\t\tif (!ground) next = FALLR;\n\t\t\t\telse if (dig) next = WL; // Minor change: next state on dig changed to WL for WR\n\t\t\t\telse if (bump_right) next = WL;\n\t\t\t\telse next = WR;\n\t\t\tFALLL: next = ground ? WL : FALLL;\n\t\t\tFALLR: next = ground ? WR : FALLR;\n\t\t\tDIGL: next = ground ? DIGL : FALLL;\n\t\t\tDIGR: next = ground ? DIGR : FALLR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\tassign digging = (state == DIGL) || (state == DIGR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\tinput dig,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah,\n\toutput digging\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3, DIGL=4, DIGR=6; // Minor change: DIGR parameter value changed to 6\n\treg [2:0] state;\n\treg [2:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: if (!ground) next = FALLL;\n\t\t\t\telse if (dig) next = DIGL;\n\t\t\t\telse if (bump_left) next = WR;\n\t\t\t\telse next = WL;\n\t\t\tWR: \n\t\t\t\tif (!ground) next = FALLR;\n\t\t\t\telse if (dig) next = DIGR;\n\t\t\t\telse if (bump_right) next = WL;\n\t\t\t\telse next = WR;\n\t\t\tFALLL: next = ground ? WL : FALLL;\n\t\t\tFALLR: next = ground ? WR : FALLR;\n\t\t\tDIGL: next = ground ? DIGL : FALLL;\n\t\t\tDIGR: next = ground ? DIGR : FALLR; // This change indirectly affects DIGR related behaviour\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\tassign digging = (state == DIGL) || (state == DIGR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\tinput dig,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah,\n\toutput digging\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3, DIGL=4, DIGR=5;\n\treg [2:0] state;\n\treg [2:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: if (!ground) next = FALLL;\n\t\t\t\telse if (dig) next = DIGL;\n\t\t\t\telse if (bump_left) next = WR;\n\t\t\t\telse next = WR; // Minor change: Default next state for WL changed to WR\n\t\t\tWR: \n\t\t\t\tif (!ground) next = FALLR;\n\t\t\t\telse if (dig) next = DIGR;\n\t\t\t\telse if (bump_right) next = WL;\n\t\t\t\telse next = WL; // Minor change: Default next state for WR changed to WL\n\t\t\tFALLL: next = ground ? WL : FALLL; // No change\n\t\t\tFALLR: next = ground ? WR : FALLR;\n\t\t\tDIGL: next = ground ? DIGL : FALLL;\n\t\t\tDIGR: next = ground ? DIGR : FALLR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\tassign digging = (state == DIGL) || (state == DIGR);\n\t\nendmodule\n"]}
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{"task_id": "count_clock", "mutants": ["module top_module(\n\tinput clk,\n\tinput reset,\n\tinput ena,\n\toutput reg pm,\n\toutput reg [7:0] hh,\n\toutput reg [7:0] mm,\n\toutput reg [7:0] ss);\n\t\n\twire [6:0] enable = {\n\t\t{hh[7:0],mm[7:0],ss[7:0]}==24'h115959, // No change\n\t\t{hh[3:0],mm[7:0],ss[7:0]}==20'h95959, // No change\n\t\t{mm[7:0],ss[7:0]}==16'h5959, // No change\n\t\t{mm[3:0],ss[7:0]}==12'h959, // No change\n\t\tss[7:0]==8'h59, // No change\n\t\tss[3:0] == 4'h9, // No change\n\t\t1'b1}; // No change\n\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\t{pm,hh,mm,ss} <= 25'h1120000; // Changed initial reset value for hour from 01 to 11\n\t\telse if (ena) begin\n\t\t\tif (enable[0] && ss[3:0] == 9) ss[3:0] <= 0;\n\t\t\telse if (enable[0]) ss[3:0] <= ss[3:0] + 1;\n\n\t\t\tif (enable[1] && ss[7:4] == 4'h5) ss[7:4] <= 0;\n\t\t\telse if (enable[1]) ss[7:4] <= ss[7:4] + 1;\n\t\t\t\n\t\t\tif (enable[2] && mm[3:0] == 9) mm[3:0] <= 0;\n\t\t\telse if (enable[2]) mm[3:0] <= mm[3:0] + 1;\n\n\t\t\tif (enable[3] && mm[7:4] == 4'h5) mm[7:4] <= 0;\n\t\t\telse if (enable[3]) mm[7:4] <= mm[7:4] + 1;\n\t\t\t\n\t\t\tif (enable[4] && hh[3:0] == 4'h9) hh[3:0] <= 0;\n\t\t\telse if (enable[4]) hh[3:0] <= hh[3:0] + 1;\n\n\t\t\tif (enable[4] && hh[7:0] == 8'h12) hh[7:0] <= 8'h1;\n\t\t\telse if (enable[5]) hh[7:4] <= hh[7:4] + 1;\n\t\t\t\n\t\t\tif (enable[6]) pm <= ~pm;\n\t\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput ena,\n\toutput reg pm,\n\toutput reg [7:0] hh,\n\toutput reg [7:0] mm,\n\toutput reg [7:0] ss);\n\t\n\twire [6:0] enable = {\n\t\t{hh[7:0],mm[7:0],ss[7:0]}==24'h125959, // Changed the hour in comparison for enabling the am/pm toggle from 11 to 12\n\t\t{hh[3:0],mm[7:0],ss[7:0]}==20'h95959,\n\t\t{mm[7:0],ss[7:0]}==16'h5959,\n\t\t{mm[3:0],ss[7:0]}==12'h959,\n\t\tss[7:0]==8'h59,\n\t\tss[3:0] == 4'h9,\n\t\t1'b1};\n\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\t{pm,hh,mm,ss} <= 25'h0120000;\n\t\telse if (ena) begin\n\t\t\tif (enable[0] && ss[3:0] == 9) ss[3:0] <= 0;\n\t\t\telse if (enable[0]) ss[3:0] <= ss[3:0] + 1;\n\n\t\t\tif (enable[1] && ss[7:4] == 4'h5) ss[7:4] <= 0;\n\t\t\telse if (enable[1]) ss[7:4] <= ss[7:4] + 1;\n\t\t\t\n\t\t\tif (enable[2] && mm[3:0] == 9) mm[3:0] <= 0;\n\t\t\telse if (enable[2]) mm[3:0] <= mm[3:0] + 1;\n\n\t\t\tif (enable[3] && mm[7:4] == 4'h5) mm[7:4] <= 0;\n\t\t\telse if (enable[3]) mm[7:4] <= mm[7:4] + 1;\n\t\t\t\n\t\t\tif (enable[4] && hh[3:0] == 4'h9) hh[3:0] <= 0;\n\t\t\telse if (enable[4]) hh[3:0] <= hh[3:0] + 1;\n\n\t\t\tif (enable[4] && hh[7:0] == 8'h12) hh[7:0] <= 8'h1;\n\t\t\telse if (enable[5]) hh[7:4] <= hh[7:4] + 1;\n\t\t\t\n\t\t\tif (enable[6]) pm <= ~pm;\n\t\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput ena,\n\toutput reg pm,\n\toutput reg [7:0] hh,\n\toutput reg [7:0] mm,\n\toutput reg [7:0] ss);\n\t\n\twire [6:0] enable = {\n\t\t{hh[7:0],mm[7:0],ss[7:0]}==24'h115959,\n\t\t{hh[3:0],mm[7:0],ss[7:0]}==20'h95959,\n\t\t{mm[7:0],ss[7:0]}==16'h5959,\n\t\t{mm[3:0],ss[7:0]}==12'h959,\n\t\tss[7:0]==8'h59,\n\t\tss[3:0] == 4'h9,\n\t\t1'b0}; // Changed the default enable from 1'b1 to 1'b0, affecting toggle behavior\n\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\t{pm,hh,mm,ss} <= 25'h0120000;\n\t\telse if (ena) begin\n\t\t\tif (enable[0] && ss[3:0] == 9) ss[3:0] <= 0;\n\t\t\telse if (enable[0]) ss[3:0] <= ss[3:0] + 1;\n\n\t\t\tif (enable[1] && ss[7:4] == 4'h5) ss[7:4] <= 0;\n\t\t\telse if (enable[1]) ss[7:4] <= ss[7:4] + 1;\n\t\t\t\n\t\t\tif (enable[2] && mm[3:0] == 9) mm[3:0] <= 0;\n\t\t\telse if (enable[2]) mm[3:0] <= mm[3:0] + 1;\n\n\t\t\tif (enable[3] && mm[7:4] == 4'h5) mm[7:4] <= 0;\n\t\t\telse if (enable[3]) mm[7:4] <= mm[7:4] + 1;\n\t\t\t\n\t\t\tif (enable[4] && hh[3:0] == 4'h9) hh[3:0] <= 0;\n\t\t\telse if (enable[4]) hh[3:0] <= hh[3:0] + 1;\n\n\t\t\tif (enable[4] && hh[7:0] == 8'h12) hh[7:0] <= 8'h1;\n\t\t\telse if (enable[5]) hh[7:4] <= hh[7:4] + 1;\n\t\t\t\n\t\t\tif (enable[6]) pm <= ~pm;\n\t\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput ena,\n\toutput reg pm,\n\toutput reg [7:0] hh,\n\toutput reg [7:0] mm,\n\toutput reg [7:0] ss);\n\t\n\twire [6:0] enable = {\n\t\t{hh[7:0],mm[7:0],ss[7:0]}==24'h115959,\n\t\t{hh[3:0],mm[7:0],ss[7:0]}==20'h95959,\n\t\t{mm[7:0],ss[7:0]}==16'h5959,\n\t\t{mm[3:0],ss[7:0]}==12'h959,\n\t\tss[7:0]==8'h59,\n\t\tss[3:0] == 4'h8, // Changed the seconds 'ones' comparison from 9 to 8\n\t\t1'b1};\n\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\t{pm,hh,mm,ss} <= 25'h0120000;\n\t\telse if (ena) begin\n\t\t\tif (enable[0] && ss[3:0] == 9) ss[3:0] <= 0;\n\t\t\telse if (enable[0]) ss[3:0] <= ss[3:0] + 1;\n\n\t\t\tif (enable[1] && ss[7:4] == 4'h5) ss[7:4] <= 0;\n\t\t\telse if (enable[1]) ss[7:4] <= ss[7:4] + 1;\n\t\t\t\n\t\t\tif (enable[2] && mm[3:0] == 9) mm[3:0] <= 0;\n\t\t\telse if (enable[2]) mm[3:0] <= mm[3:0] + 1;\n\n\t\t\tif (enable[3] && mm[7:4] == 4'h5) mm[7:4] <= 0;\n\t\t\telse if (enable[3]) mm[7:4] <= mm[7:4] + 1;\n\t\t\t\n\t\t\tif (enable[4] && hh[3:0] == 4'h9) hh[3:0] <= 0;\n\t\t\telse if (enable[4]) hh[3:0] <= hh[3:0] + 1;\n\n\t\t\tif (enable[4] && hh[7:0] == 8'h12) hh[7:0] <= 8'h1;\n\t\t\telse if (enable[5]) hh[7:4] <= hh[7:4] + 1;\n\t\t\t\n\t\t\tif (enable[6]) pm <= ~pm;\n\t\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput ena,\n\toutput reg pm,\n\toutput reg [7:0] hh,\n\toutput reg [7:0] mm,\n\toutput reg [7:0] ss);\n\t\n\twire [6:0] enable = {\n\t\t{hh[7:0],mm[7:0],ss[7:0]}==24'h115959,\n\t\t{hh[3:0],mm[7:0],ss[7:0]}==20'h95959,\n\t\t{mm[7:0],ss[7:0]}==16'h5959,\n\t\t{mm[3:0],ss[7:0]}==12'h959,\n\t\tss[7:0]==8'h58, // Changed the seconds comparison from 59 to 58\n\t\tss[3:0] == 4'h9,\n\t\t1'b1};\n\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\t{pm,hh,mm,ss} <= 25'h0120000;\n\t\telse if (ena) begin\n\t\t\tif (enable[0] && ss[3:0] == 9) ss[3:0] <= 0;\n\t\t\telse if (enable[0]) ss[3:0] <= ss[3:0] + 1;\n\n\t\t\tif (enable[1] && ss[7:4] == 4'h5) ss[7:4] <= 0;\n\t\t\telse if (enable[1]) ss[7:4] <= ss[7:4] + 1;\n\t\t\t\n\t\t\tif (enable[2] && mm[3:0] == 9) mm[3:0] <= 0;\n\t\t\telse if (enable[2]) mm[3:0] <= mm[3:0] + 1;\n\n\t\t\tif (enable[3] && mm[7:4] == 4'h5) mm[7:4] <= 0;\n\t\t\telse if (enable[3]) mm[7:4] <= mm[7:4] + 1;\n\t\t\t\n\t\t\tif (enable[4] && hh[3:0] == 4'h9) hh[3:0] <= 0;\n\t\t\telse if (enable[4]) hh[3:0] <= hh[3:0] + 1;\n\n\t\t\tif (enable[4] && hh[7:0] == 8'h12) hh[7:0] <= 8'h1;\n\t\t\telse if (enable[5]) hh[7:4] <= hh[7:4] + 1;\n\t\t\t\n\t\t\tif (enable[6]) pm <= ~pm;\n\t\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput ena,\n\toutput reg pm,\n\toutput reg [7:0] hh,\n\toutput reg [7:0] mm,\n\toutput reg [7:0] ss);\n\t\n\twire [6:0] enable = {\n\t\t{hh[7:0],mm[7:0],ss[7:0]}==24'h115959,\n\t\t{hh[3:0],mm[7:0],ss[7:0]}==20'h95959,\n\t\t{mm[7:0],ss[7:0]}==16'h5959,\n\t\t{mm[3:0],ss[7:0]}==12'h958, // Changed the minute 'ones' comparison from 959 to 958\n\t\tss[7:0]==8'h59,\n\t\tss[3:0] == 4'h9,\n\t\t1'b1};\n\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\t{pm,hh,mm,ss} <= 25'h0120000;\n\t\telse if (ena) begin\n\t\t\tif (enable[0] && ss[3:0] == 9) ss[3:0] <= 0;\n\t\t\telse if (enable[0]) ss[3:0] <= ss[3:0] + 1;\n\n\t\t\tif (enable[1] && ss[7:4] == 4'h5) ss[7:4] <= 0;\n\t\t\telse if (enable[1]) ss[7:4] <= ss[7:4] + 1;\n\t\t\t\n\t\t\tif (enable[2] && mm[3:0] == 9) mm[3:0] <= 0;\n\t\t\telse if (enable[2]) mm[3:0] <= mm[3:0] + 1;\n\n\t\t\tif (enable[3] && mm[7:4] == 4'h5) mm[7:4] <= 0;\n\t\t\telse if (enable[3]) mm[7:4] <= mm[7:4] + 1;\n\t\t\t\n\t\t\tif (enable[4] && hh[3:0] == 4'h9) hh[3:0] <= 0;\n\t\t\telse if (enable[4]) hh[3:0] <= hh[3:0] + 1;\n\n\t\t\tif (enable[4] && hh[7:0] == 8'h12) hh[7:0] <= 8'h1;\n\t\t\telse if (enable[5]) hh[7:4] <= hh[7:4] + 1;\n\t\t\t\n\t\t\tif (enable[6]) pm <= ~pm;\n\t\tend\nendmodule\n"]}
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{"task_id": "lemmings2", "mutants": ["module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = ground ? (bump_left ? WR : WL) : FALLL;\n\t\t\tWR: next = ground ? (bump_right ? WL: WR) : FALLL; // Changed FALLR to FALLL\n\t\t\tFALLL: next = ground ? WL : FALLL;\n\t\t\tFALLR: next = ground ? WR : FALLR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_left = (state==WR); // Mistakenly duplicated and modified the condition for walk_left instead of walk_right\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3; // No change in the parameter\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = ground ? (bump_left ? WR : WL) : FALLL;\n\t\t\tWR: next = ground ? (bump_right ? WL: WR) : FALLR;\n\t\t\tFALLL: next = ground ? WR : FALLL; // Modified the next state from WL to WR in FALLL\n\t\t\tFALLR: next = ground ? WL : FALLR; // Modified the next state from WR to WL in FALLR\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = ground ? (bump_left ? WR : WL) : FALLL;\n\t\t\tWR: next = ground ? (bump_right ? WL: WR) : FALLR;\n\t\t\tFALLL: next = ground ? WL : FALLR; // Changed FALLL to FALLR for the FALLL case\n\t\t\tFALLR: next = ground ? WR : FALLL; // Changed FALLR to FALLL for the FALLR case\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3;\n\treg [1:0] state;\n\treg [2:0] next; // Changed next state register width from [1:0] to [2:0], a minor but impactful logic change\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = ground ? (bump_left ? WR : WL) : FALLL;\n\t\t\tWR: next = ground ? (bump_right ? WL: WR) : FALLR;\n\t\t\tFALLL: next = ground ? WL : FALLL;\n\t\t\tFALLR: next = ground ? WR : FALLR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next[1:0]; // Adjusted to handle the change in width of 'next'\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = !ground ? (bump_left ? WR : WL) : FALLL; // Inverted the condition for ground in the WL state\n\t\t\tWR: next = ground ? (bump_right ? WL: WR) : FALLR;\n\t\t\tFALLL: next = ground ? WL : FALLL;\n\t\t\tFALLR: next = ground ? WR : FALLR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = ground ? (bump_left ? WR : WL) : FALLR; // Changed next state from FALLL to FALLR when ground is false in WL\n\t\t\tWR: next = ground ? (bump_right ? WL: WR) : FALLL; // Changed next state from FALLR to FALLL when ground is false in WR\n\t\t\tFALLL: next = ground ? WL : FALLL;\n\t\t\tFALLR: next = ground ? WR : FALLR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = ground ? (bump_left ? WR : WL) : FALLL;\n\t\t\tWR: next = ground ? (bump_right ? WR: WR) : FALLR; // Modified the condition to always result in WR when bumped right\n\t\t\tFALLL: next = ground ? WL : FALLL;\n\t\t\tFALLR: next = ground ? WR : FALLR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = ground ? (bump_left ? WL : WL) : FALLL; // Modified to always remain WL when bumped left and on ground\n\t\t\tWR: next = ground ? (bump_right ? WL: WR) : FALLR;\n\t\t\tFALLL: next = ground ? WL : FALLL;\n\t\t\tFALLR: next = ground ? WR : FALLR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = ground ? (bump_left ? WR : WL) : FALLL;\n\t\t\tWR: next = !ground ? (bump_right ? WL: WR) : FALLR; // Inverted the condition for ground in WR state\n\t\t\tFALLL: next = ground ? WL : FALLL;\n\t\t\tFALLR: next = ground ? WR : FALLR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput areset,\n\tinput bump_left,\n\tinput bump_right,\n\tinput ground,\n\toutput walk_left,\n\toutput walk_right,\n\toutput aaah\n);\n\tparameter WL=0, WR=1, FALLL=2, FALLR=3;\n\treg [1:0] state;\n\treg [1:0] next;\n \n always_comb begin\n\t\tcase (state)\n\t\t\tWL: next = ground ? (bump_left ? WR : WL) : FALLL;\n\t\t\tWR: next = ground ? (bump_right ? WL: WR) : FALLR;\n\t\t\tFALLL: next = !ground ? WL : FALLL; // Inverted the condition for ground in FALLL state\n\t\t\tFALLR: next = ground ? WR : FALLR;\n\t\tendcase\n end\n \n always @(posedge clk, posedge areset) begin\n\t\tif (areset) state <= WL;\n else state <= next;\n\tend\n\t\t\n\tassign walk_left = (state==WL);\n\tassign walk_right = (state==WR);\n\tassign aaah = (state == FALLL) || (state == FALLR);\n\t\nendmodule\n"]}
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{"task_id": "ece241_2013_q12", "mutants": ["module top_module (\n input clk,\n input enable,\n input S,\n input A,\n input B,\n input C,\n output reg Z\n);\n\n reg [7:0] q;\n always @(posedge clk) begin\n if (enable)\n q <= {q[6:0], S}; // No change here\n end\n \n assign Z = q[ {A, B, C} ]; // Changed the indexing to use A, B, C directly without braces (incorrect syntax to illustrate change)\n \nendmodule\n", "module top_module (\n input clk,\n input enable,\n input S,\n input A,\n input B,\n input C,\n output reg Z\n);\n\n reg [7:0] q;\n always @(posedge clk) begin\n if (enable)\n q <= {S, q[7:1]}; // Changed the shift direction, mistakenly shifting in the MSB instead of LSB\n end\n \n assign Z = q[ {A, B, C} ];\n \nendmodule\n", "module top_module (\n input clk,\n input enable,\n input S,\n input A,\n input B,\n input C,\n output reg Z\n);\n\n reg [7:0] q;\n always @(posedge clk) begin\n // Incorrect condition: changed 'if (enable)' to 'if (!enable)', inverting the enable condition\n if (!enable)\n q <= {q[6:0], S};\n end\n \n assign Z = q[ {A, B, C} ];\n \nendmodule\n", "module top_module (\n input clk,\n input enable,\n input S,\n input A,\n input B,\n input C,\n output reg Z\n);\n\n reg [7:0] q;\n always @(negedge clk) begin // Changed the clock edge to negative edge\n if (enable)\n q <= {q[6:0], S};\n end\n \n assign Z = q[ {A, B, C} ];\n \nendmodule\n", "module top_module (\n input clk,\n input enable,\n input S,\n input A,\n input B,\n input C,\n output reg Z\n);\n\n reg [7:0] q;\n always @(posedge clk) begin\n if (enable)\n q <= {q[6:0], !S}; // Inverted the input S before shifting in\n end\n \n assign Z = q[ {A, B, C} ];\n \nendmodule\n", "module top_module (\n input clk,\n input enable,\n input S,\n input A,\n input B,\n input C,\n output reg Z\n);\n\n reg [7:0] q = 8'b00000001; // Initialized q with a non-zero value\n always @(posedge clk) begin\n if (enable)\n q <= {q[6:0], S};\n end\n \n assign Z = q[ {A, B, C} ];\n \nendmodule\n", "module top_module (\n input clk,\n input enable,\n input S,\n input A,\n input B,\n input C,\n output reg Z\n);\n\n reg [7:0] q;\n always @(posedge clk) begin\n if (enable)\n q <= {q[5:0], S, q[7]}; // Incorrectly inserted S in the middle, preserving MSB\n end\n \n assign Z = q[ {A, B, C} ];\n \nendmodule\n", "module top_module (\n input clk,\n input enable,\n input S,\n input A,\n input B,\n input C,\n output reg Z\n);\n\n reg [7:0] q;\n always @(posedge clk) begin\n if (enable)\n q[6:0] <= {q[6:0], S}; // Only shifting the lower 7 bits, leaving q[7] unchanged\n end\n \n assign Z = q[ {A, B, C} ];\n \nendmodule\n", "module top_module (\n input clk,\n input enable,\n input S,\n input A,\n input B,\n input C,\n output reg Z\n);\n\n reg [7:1] q; // Reduced the size of q, mistakenly making it 7 bits instead of 8\n always @(posedge clk) begin\n if (enable)\n q <= {q[6:1], S}; // Adjusted for the new size of q\n end\n \n assign Z = q[ {A, B, C} ]; // This will cause a compilation error due to mismatch in bit width\n \nendmodule\n", "module top_module (\n input clk,\n input enable,\n input S,\n input A,\n input B,\n input C,\n output reg Z\n);\n\n reg [7:0] q;\n always @(posedge clk) begin\n if (enable)\n q <= {q[6:0], q[7]}; // Recirculating the MSB instead of shifting in S\n end\n \n assign Z = q[ {A, B, C} ];\n \nendmodule\n"]}
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{"task_id": "count1to10", "mutants": ["module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset || q == 9) // Changed condition from q == 10 to q == 9\n\t\t\tq <= 1;\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset || q == 10)\n\t\t\tq <= 2; // Changed reset value from 1 to 2\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset || q == 10)\n\t\t\tq <= 1;\n\t\telse\n\t\t\tq <= q + 2; // Changed increment from q+1 to q+2\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 1; // Removed condition q == 10 for reset\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(negedge clk) // Changed posedge to negedge\n\t\tif (reset || q == 10)\n\t\t\tq <= 1;\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset)\n\t\t\tq <= 0; // Changed reset value from 1 to 0\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset || q == 10)\n\t\t\tq <= 1;\n\t\telse\n\t\t\tq <= q - 1; // Changed increment to decrement (q-1)\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [2:0] q); // Changed bit width from [3:0] to [2:0]\n\t\n\talways @(posedge clk)\n\t\tif (reset || q == 10)\n\t\t\tq <= 1;\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (!reset || q == 10) // Changed reset condition to !reset\n\t\t\tq <= 1;\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk)\n\t\tif (reset || q == 11) // Changed comparison from q == 10 to q == 11\n\t\t\tq <= 1;\n\t\telse\n\t\t\tq <= q+1;\n\t\nendmodule\n"]}
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{"task_id": "fsm3s", "mutants": ["module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state;\n reg [1:0] next;\n \n always_comb begin\n case (state)\n A: next = in ? B : A; // No change\n B: next = in ? B : C; // No change\n C: next = in ? D : A; // No change\n // Mutation: Change next state for D when in=0 from C to B\n D: next = in ? B : B; // Changed here\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= A;\n else state <= next;\n end\n \n assign out = (state==D);\n\nendmodule\n", "module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state;\n reg [1:0] next;\n \n always_comb begin\n case (state)\n A: next = in ? B : A; // No change\n // Mutation: Change next state for B when in=0 from C to D\n B: next = in ? B : D; // Changed here\n C: next = in ? D : A; // No change\n D: next = in ? B : C; // No change\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= A;\n else state <= next;\n end\n \n assign out = (state==D);\n\nendmodule\n", "module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state;\n reg [1:0] next;\n \n always_comb begin\n // Mutation: Change next state for A when in=1 from B to C\n case (state)\n A: next = in ? C : A; // Changed here\n B: next = in ? B : C;\n C: next = in ? D : A;\n D: next = in ? B : C;\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= A;\n else state <= next;\n end\n \n assign out = (state==D);\n\nendmodule\n", "module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state;\n reg [1:0] next;\n \n always_comb begin\n case (state)\n A: next = in ? B : A;\n B: next = in ? B : C;\n C: next = in ? D : A;\n D: next = in ? B : C;\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= A;\n // Mutation: Change state assignment to non-blocking\n else state <= next; // No change (Clarification)\n end\n \n // Mutation: Change output to be high when in state C instead of D\n assign out = (state==C); // Changed here\n\nendmodule\n", "module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state;\n reg [1:0] next;\n \n always_comb begin\n case (state)\n A: next = in ? B : A;\n // Mutation: Change next state for B when in=1 from B to A\n B: next = in ? A : C; // Changed here\n C: next = in ? D : A;\n D: next = in ? B : C;\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= A;\n else state <= next;\n end\n \n assign out = (state==D);\n\nendmodule\n", "module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state;\n reg [1:0] next;\n \n always_comb begin\n case (state)\n A: next = in ? B : A;\n B: next = in ? B : C;\n C: next = in ? D : A;\n D: next = in ? B : C;\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) \n // Mutation: Change reset state from A to B\n state <= B; // Changed here\n else state <= next;\n end\n \n assign out = (state==D);\n\nendmodule\n", "module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state;\n reg [1:0] next;\n \n always_comb begin\n case (state)\n A: next = in ? B : A;\n B: next = in ? B : C;\n // Mutation: Change next state for C when in=0 from A to B\n C: next = in ? D : B; // Changed here\n D: next = in ? B : C;\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= A;\n else state <= next;\n end\n \n assign out = (state==D);\n\nendmodule\n", "module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state;\n reg [1:0] next;\n \n always_comb begin\n case (state)\n // Mutation: Change next state for A when in=0 from A to B\n A: next = in ? B : B; // Changed here\n B: next = in ? B : C;\n C: next = in ? D : A;\n D: next = in ? B : C;\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= A;\n else state <= next;\n end\n \n assign out = (state==D);\n\nendmodule\n", "module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state;\n reg [1:0] next;\n \n always_comb begin\n case (state)\n A: next = in ? B : A;\n B: next = in ? B : C;\n C: next = in ? D : A;\n // Mutation: Change next state for D when in=1 from B to A\n D: next = in ? A : C; // Changed here\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= A;\n else state <= next;\n end\n \n assign out = (state==D);\n\nendmodule\n", "module top_module (\n input clk,\n input in,\n input reset,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n reg [1:0] state;\n reg [1:0] next;\n \n always_comb begin\n case (state)\n A: next = in ? B : A;\n B: next = in ? B : C;\n // Mutation: Change next state for C when in=1 from D to B\n C: next = in ? B : A; // Changed here\n D: next = in ? B : C;\n endcase\n end\n \n always @(posedge clk) begin\n if (reset) state <= A;\n else state <= next;\n end\n \n assign out = (state==D);\n\nendmodule\n"]}
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{"task_id": "review2015_fsmshift", "mutants": ["module top_module(\n\tinput clk,\n\tinput reset,\n\toutput shift_ena);\n\n\tparameter B0=0, B1=1, B2=2, B3=3, Done=4;\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = Done;\n\t\t\tDone: next = Done;\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= B1; // Changed B0 to B1 here\n\t\telse state <= next;\n\t\t\n\tassign shift_ena = (state == B0 || state == B1 || state == B2 || state == B3);\n\t\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput shift_ena);\n\n\tparameter B0=0, B1=1, B2=2, B3=3, Done=4;\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = B3; // Changed Done to B3 here\n\t\t\tDone: next = Done;\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= B0;\n\t\telse state <= next;\n\t\t\n\tassign shift_ena = (state == B0 || state == B1 || state == B2 || state == B3);\n\t\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput shift_ena);\n\n\tparameter B0=0, B1=1, B2=2, B3=3, Done=4;\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = Done;\n\t\t\tDone: next = B0; // Changed Done to loop back to B0\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= B0;\n\t\telse state <= next;\n\t\t\n\tassign shift_ena = (state == B0 || state == B1 || state == B2 || state == B3);\n\t\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput shift_ena);\n\n\tparameter B0=0, B1=1, B2=2, B3=3, Done=4;\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tB0: next = B2; // Changed B0's next state to B2\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = Done;\n\t\t\tDone: next = Done;\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= B0;\n\t\telse state <= next;\n\t\t\n\tassign shift_ena = (state == B0 || state == B1 || state == B2 || state == B3);\n\t\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput shift_ena);\n\n\tparameter B0=0, B1=1, B2=2, B3=3, Done=4;\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B2; // Changed B2's next state to loop on itself\n\t\t\tB3: next = Done;\n\t\t\tDone: next = Done;\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= B0;\n\t\telse state <= next;\n\t\t\n\tassign shift_ena = (state == B0 || state == B1 || state == B2 || state == B3);\n\t\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput shift_ena);\n\n\tparameter B0=0, B1=1, B2=2, B3=3, Done=4;\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B3; // Changed B1's next state to B3\n\t\t\tB2: next = B3;\n\t\t\tB3: next = Done;\n\t\t\tDone: next = Done;\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= B0;\n\t\telse state <= next;\n\t\t\n\tassign shift_ena = (state == B0 || state == B1 || state == B2 || state == B3);\n\t\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput shift_ena);\n\n\tparameter B0=0, B1=1, B2=2, B3=3, Done=4;\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = Done;\n\t\t\t// Removed Done case entirely, implicitly latches\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= B0;\n\t\telse state <= next;\n\t\t\n\tassign shift_ena = (state == B0 || state == B1 || state == B2 || state == B3);\n\t\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput shift_ena);\n\n\tparameter B0=0, B1=1, B2=2, B3=4, Done=4; // Changed parameter B3 to 4\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = Done;\n\t\t\tDone: next = Done;\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= B0;\n\t\telse state <= next;\n\t\t\n\tassign shift_ena = (state == B0 || state == B1 || state == B2 || state == B3);\n\t\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput shift_ena);\n\n\tparameter B0=0, B1=1, B2=2, B3=3, Done=4;\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tB0: next = B0; // Changed B0's next state to loop on itself\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = Done;\n\t\t\tDone: next = Done;\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= B0;\n\t\telse state <= next;\n\t\t\n\tassign shift_ena = (state == B0 || state == B1 || state == B2 || state == B3);\n\t\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput shift_ena);\n\n\tparameter B0=0, B1=1, B2=2, B3=3, Done=3; // Changed Done parameter to 3, making it equivalent to B3\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tB0: next = B1;\n\t\t\tB1: next = B2;\n\t\t\tB2: next = B3;\n\t\t\tB3: next = Done;\n\t\t\tDone: next = Done;\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= B0;\n\t\telse state <= next;\n\t\t\n\tassign shift_ena = (state == B0 || state == B1 || state == B2 || state == B3);\n\t\n\t\nendmodule\n"]}
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{"task_id": "conwaylife", "mutants": ["module top_module(\n input clk,\n input load,\n input [255:0] data,\n output reg [255:0] q);\n \n \n logic [323:0] q_pad;\n always@(*) begin\n for (int i=0;i<16;i++)\n q_pad[18*(i+1)+1 +: 16] = q[16*i +: 16];\n q_pad[1 +: 16] = q[16*15 +: 16];\n q_pad[18*17+1 +: 16] = q[0 +: 16];\n \n for (int i=0; i<18; i++) begin\n q_pad[i*18] = q_pad[i*18+16]; // Change: -1 to +16 to slightly modify the neighbor assignment logic\n q_pad[i*18+17] = q_pad[i*18+1];\n end\n end\n \n always @(posedge clk) begin\n for (int i=0;i<16;i++)\n for (int j=0;j<16;j++) begin\n q[i*16+j] <= \n ((q_pad[(i+1)*18+j+1 -1+18] + q_pad[(i+1)*18+j+1 +18] + q_pad[(i+1)*18+j+1 +1+18] +\n q_pad[(i+1)*18+j+1 -1] + q_pad[(i+1)*18+j+1+1] +\n q_pad[(i+1)*18+j+1 -1-18] + q_pad[(i+1)*18+j+1 -18] + q_pad[(i+1)*18+j+1 +1-18]) & 3'h7 | q[i*16+j]) == 3'h3;\n end\n \n if (load)\n q <= data;\n \n end\n \nendmodule\n", "module top_module(\n input clk,\n input load,\n input [255:0] data,\n output reg [255:0] q);\n \n \n logic [323:0] q_pad;\n always@(*) begin\n for (int i=0;i<16;i++)\n q_pad[18*(i+1)+1 +: 16] = q[16*i +: 16];\n q_pad[1 +: 16] = q[16*15 +: 16];\n q_pad[18*17+1 +: 16] = q[0 +: 16];\n \n for (int i=0; i<18; i++) begin\n q_pad[i*18] = q_pad[i*18+16];\n q_pad[i*18+17] = q_pad[i*18+1]; // Change: +1 to -1 to slightly modify the neighbor assignment logic\n end\n end\n \n always @(posedge clk) begin\n for (int i=0;i<16;i++)\n for (int j=0;j<16;j++) begin\n q[i*16+j] <= \n ((q_pad[(i+1)*18+j+1 -1+18] + q_pad[(i+1)*18+j+1 +18] + q_pad[(i+1)*18+j+1 +1+18] +\n q_pad[(i+1)*18+j+1 -1] + q_pad[(i+1)*18+j+1+1] +\n q_pad[(i+1)*18+j+1 -1-18] + q_pad[(i+1)*18+j+1 -18] + q_pad[(i+1)*18+j+1 +1-18]) & 3'h7 | q[i*16+j]) == 3'h3;\n end\n \n if (load)\n q <= data;\n \n end\n \nendmodule\n", "module top_module(\n input clk,\n input load,\n input [255:0] data,\n output reg [255:0] q);\n \n \n logic [323:0] q_pad;\n always@(*) begin\n for (int i=0;i<16;i++)\n q_pad[18*(i+1)+1 +: 16] = q[16*i +: 16];\n q_pad[1 +: 16] = q[16*15 +: 16];\n q_pad[18*17+1 +: 16] = q[0 +: 16];\n \n for (int i=0; i<18; i++) begin\n q_pad[i*18] = q_pad[i*18+16];\n q_pad[i*18+17] = q_pad[i*18+1];\n end\n end\n \n always @(posedge clk) begin\n for (int i=0;i<16;i++)\n for (int j=0;j<16;j++) begin\n q[i*16+j] <= \n ((q_pad[(i+1)*18+j+1 -1+18] + q_pad[(i+1)*18+j+1 +18] + q_pad[(i+1)*18+j+1 +1+18] +\n q_pad[(i+1)*18+j+1 -1] + q_pad[(i+1)*18+j+1+1] +\n q_pad[(i+1)*18+j+1 -1-18] + q_pad[(i+1)*18+j+1 -18] + q_pad[(i+1)*18+j+1 +1-18]) & 3'h7 | q[i*16+j]) == 3'h2; // Change: 3'h3 to 3'h2 for the condition\n end\n \n if (load)\n q <= data;\n \n end\n \nendmodule\n", "module top_module(\n input clk,\n input load,\n input [255:0] data,\n output reg [255:0] q);\n \n \n logic [323:0] q_pad;\n always@(*) begin\n for (int i=0;i<16;i++) \n q_pad[18*(i+1)+1 +: 16] = q[16*i +: 16]; // Change: No change here, just a placeholder for consistency in mutant creation\n q_pad[1 +: 16] = q[16*15 +: 16];\n q_pad[18*17+1 +: 16] = q[0 +: 16];\n \n for (int i=0; i<18; i++) begin\n q_pad[i*18] = q_pad[i*18+16];\n q_pad[i*18+17] = q_pad[i*18+1];\n end\n end\n \n always @(posedge clk) begin\n for (int i=0;i<16;i++)\n for (int j=0;j<16;j++) begin\n q[i*16+j] <= \n ((q_pad[(i+1)*18+j+1 -1+18] + q_pad[(i+1)*18+j+1 +18] + q_pad[(i+1)*18+j+1 +1+18] +\n q_pad[(i+1)*18+j+1 -1] + q_pad[(i+1)*18+j+1+1] +\n q_pad[(i+1)*18+j+1 -1-18] + q_pad[(i+1)*18+j+1 -18] + q_pad[(i+1)*18+j+1 +1-18]) & 3'h6 | q[i*16+j]) == 3'h3; // Change: & 3'h7 to & 3'h6 to modify condition mask\n end\n \n if (load)\n q <= data;\n \n end\n \nendmodule\n", "module top_module(\n input clk,\n input load,\n input [255:0] data,\n output reg [255:0] q);\n \n \n logic [323:0] q_pad;\n always@(*) begin\n for (int i=0;i<16;i++)\n q_pad[18*(i+1)+1 +: 16] = q[16*i +: 16];\n q_pad[1 +: 16] = q[16*15 +: 16];\n q_pad[18*17+1 +: 16] = q[0 +: 16];\n \n for (int i=0; i<18; i++) begin\n q_pad[i*18] = q_pad[i*18+16];\n q_pad[i*18+17] = q_pad[i*18+2]; // Change: +1 to +2 in neighbor assignment\n end\n end\n \n always @(posedge clk) begin\n for (int i=0;i<16;i++)\n for (int j=0;j<16;j++) begin\n q[i*16+j] <= \n ((q_pad[(i+1)*18+j+1 -1+18] + q_pad[(i+1)*18+j+1 +18] + q_pad[(i+1)*18+j+1 +1+18] +\n q_pad[(i+1)*18+j+1 -1] + q_pad[(i+1)*18+j+1+1] +\n q_pad[(i+1)*18+j+1 -1-18] + q_pad[(i+1)*18+j+1 -18] + q_pad[(i+1)*18+j+1 +1-18]) & 3'h7 | q[i*16+j]) == 3'h3;\n end\n \n if (load)\n q <= data;\n \n end\n \nendmodule\n", "module top_module(\n input clk,\n input load,\n input [255:0] data,\n output reg [255:0] q);\n \n \n logic [323:0] q_pad;\n always@(*) begin\n for (int i=0;i<16;i++)\n q_pad[18*(i+1)+1 +: 16] = q[16*i +: 16];\n q_pad[1 +: 16] = q[16*15 +: 16]; // Change: No real change, serves as a placeholder for diversity\n q_pad[18*17+1 +: 16] = q[0 +: 16];\n \n for (int i=0; i<18; i++) begin\n q_pad[i*18] = q_pad[i*18+15]; // Change: +16 to +15 in neighbor assignment\n q_pad[i*18+17] = q_pad[i*18+1];\n end\n end\n \n always @(posedge clk) begin\n for (int i=0;i<16;i++)\n for (int j=0;j<16;j++) begin\n q[i*16+j] <= \n ((q_pad[(i+1)*18+j+1 -1+18] + q_pad[(i+1)*18+j+1 +18] + q_pad[(i+1)*18+j+1 +1+18] +\n q_pad[(i+1)*18+j+1 -1] + q_pad[(i+1)*18+j+1+1] +\n q_pad[(i+1)*18+j+1 -1-18] + q_pad[(i+1)*18+j+1 -18] + q_pad[(i+1)*18+j+1 +1-18]) & 3'h7 | q[i*16+j]) == 3'h3;\n end\n \n if (load)\n q <= data;\n \n end\n \nendmodule\n", "module top_module(\n input clk,\n input load,\n input [255:0] data,\n output reg [255:0] q);\n \n \n logic [323:0] q_pad;\n always@(*) begin\n for (int i=0;i<16;i++)\n q_pad[18*(i+1)+1 +: 16] = q[16*i +: 15]; // Change: 16 to 15 to slightly modify the data assignment, missing out the last bit\n q_pad[1 +: 16] = q[16*15 +: 16];\n q_pad[18*17+1 +: 16] = q[0 +: 16];\n \n for (int i=0; i<18; i++) begin\n q_pad[i*18] = q_pad[i*18+16];\n q_pad[i*18+17] = q_pad[i*18+1];\n end\n end\n \n always @(posedge clk) begin\n for (int i=0;i<16;i++)\n for (int j=0;j<16;j++) begin\n q[i*16+j] <= \n ((q_pad[(i+1)*18+j+1 -1+18] + q_pad[(i+1)*18+j+1 +18] + q_pad[(i+1)*18+j+1 +1+18] +\n q_pad[(i+1)*18+j+1 -1] + q_pad[(i+1)*18+j+1+1] +\n q_pad[(i+1)*18+j+1 -1-18] + q_pad[(i+1)*18+j+1 -18] + q_pad[(i+1)*18+j+1 +1-18]) & 3'h7 | q[i*16+j]) == 3'h3;\n end\n \n if (load)\n q <= data;\n \n end\n \nendmodule\n", "module top_module(\n input clk,\n input load,\n input [255:0] data,\n output reg [255:0] q);\n \n \n logic [323:0] q_pad;\n always@(*) begin\n for (int i=0;i<15;i++) // Change: 16 to 15, affects one less iteration\n q_pad[18*(i+1)+1 +: 16] = q[16*i +: 16];\n q_pad[1 +: 16] = q[16*15 +: 16];\n q_pad[18*17+1 +: 16] = q[0 +: 16];\n \n for (int i=0; i<18; i++) begin\n q_pad[i*18] = q_pad[i*18+16];\n q_pad[i*18+17] = q_pad[i*18+1];\n end\n end\n \n always @(posedge clk) begin\n for (int i=0;i<16;i++)\n for (int j=0;j<16;j++) begin\n q[i*16+j] <= \n ((q_pad[(i+1)*18+j+1 -1+18] + q_pad[(i+1)*18+j+1 +18] + q_pad[(i+1)*18+j+1 +1+18] +\n q_pad[(i+1)*18+j+1 -1] + q_pad[(i+1)*18+j+1+1] +\n q_pad[(i+1)*18+j+1 -1-18] + q_pad[(i+1)*18+j+1 -18] + q_pad[(i+1)*18+j+1 +1-18]) & 3'h7 | q[i*16+j]) == 3'h3;\n end\n \n if (load)\n q <= data;\n \n end\n \nendmodule\n", "module top_module(\n input clk,\n input load,\n input [255:0] data,\n output reg [255:0] q);\n \n \n logic [323:0] q_pad;\n always@(*) begin\n for (int i=0;i<16;i++)\n q_pad[18*(i+1)+1 +: 16] = q[16*i +: 16];\n q_pad[1 +: 16] = q[16*15 +: 16];\n q_pad[18*17+1 +: 16] = q[0 +: 16];\n \n for (int i=0; i<18; i++) begin\n q_pad[i*18] = q_pad[i*18+15]; // Change: +16 to +15 for a slight variation in neighbor padding logic\n q_pad[i*18+17] = q_pad[i*18+1];\n end\n end\n \n always @(posedge clk) begin\n for (int i=0;i<16;i++)\n for (int j=0;j<16;j++) begin\n q[i*16+j] <= \n ((q_pad[(i+1)*18+j+1 -1+18] + q_pad[(i+1)*18+j+1 +18] + q_pad[(i+1)*18+j+1 +1+18] +\n q_pad[(i+1)*18+j+1 -1] + q_pad[(i+1)*18+j+1+1] +\n q_pad[(i+1)*18+j+1 -1-18] + q_pad[(i+1)*18+j+1 -18] + q_pad[(i+1)*18+j+1 +1-18]) & 3'h7 | q[i*16+j]) == 3'h3;\n end\n \n if (load)\n q <= data;\n \n end\n \nendmodule\n"]}
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{"task_id": "m2014_q4d", "mutants": ["module top_module (\n\tinput clk,\n\tinput in,\n\toutput logic out\n);\n\n\tinitial\n\t\tout = 1; // Changed initial value of out from 0 to 1\n\n\talways@(posedge clk) begin\n\t\tout <= in ^ out;\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\toutput logic out\n);\n\n\tinitial\n\t\tout = 0;\n\t\t\n\talways@(posedge clk) begin\n\t\tout <= in ^ !out; // Complemented the output in the XOR operation\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\toutput logic out\n);\n\n\tinitial\n\t\tout = 0;\n\t\t\n\talways@(negedge clk) begin // Changed posedge to negedge\n\t\tout <= in ^ out;\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\toutput logic out\n);\n\n\t// Removed the initial block entirely\n\talways@(posedge clk) begin\n\t\tout <= in ^ out;\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\toutput logic out\n);\n\n\tinitial\n\t\tout = 0;\n\t\t\n\talways@(posedge clk) begin\n\t\tout <= in & out; // Changed XOR (^) to AND (&)\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\toutput logic out\n);\n\n\tinitial\n\t\tout = 0;\n\t\t\n\talways@(posedge clk) begin\n\t\tout <= ~(in ^ out); // Negated the result of XOR\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\toutput logic out\n);\n\n\tinitial\n\t\tout = 0;\n\t\t\n\talways@(posedge clk) begin\n\t\tout <= in; // Removed XOR with out\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\toutput logic out\n);\n\n\tinitial\n\t\tout = 0;\n\t\t\n\talways@(posedge clk) begin\n\t\tout <= in ^ 1'b1; // XOR with constant 1\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\toutput logic out\n);\n\n\tinitial\n\t\tout = 0;\n\t\t\n\talways@(posedge clk) begin\n\t\tout <= {1'b0, in} ^ out; // Added 1'b0 to 'in' before XOR, this won't compile as intended and is considered a logic error due to width mismatch\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput in,\n\toutput logic out\n);\n\n\tinitial\n\t\tout = 0;\n\t\t\n\talways@(posedge clk) begin\n\t\tout[0] <= in ^ out; // Attempt to assign to a bit slice of 'out', this is a logic error since 'out' is a single bit\n\tend\n\nendmodule\n"]}
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{"task_id": "shift18", "mutants": ["module top_module(\n\tinput clk,\n\tinput load,\n\tinput ena,\n\tinput [1:0] amount,\n\tinput [63:0] data,\n\toutput reg [63:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse if (ena) case (amount)\n\t\t\t2'b00: q <= {q[62:0], 1'b1}; // Changed 1'b0 to 1'b1 for LSB in left shift by 1\n\t\t\t2'b01: q <= {q[55:0], 8'b0};\n\t\t\t2'b10: q <= {q[63], q[63:1]};\n\t\t\t2'b11: q <= {{8{q[63]}}, q[63:8]};\n\t\t\tdefault: q <= 64'hx;\n\t\tendcase\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput ena,\n\tinput [1:0] amount,\n\tinput [63:0] data,\n\toutput reg [63:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse if (ena) case (amount)\n\t\t\t2'b00: q <= {q[62:0], 1'b0};\n\t\t\t2'b01: q <= {q[55:0], 8'hFF}; // Changed 8'b0 to 8'hFF for LSB in left shift by 8\n\t\t\t2'b10: q <= {q[63], q[63:1]};\n\t\t\t2'b11: q <= {{8{q[63]}}, q[63:8]};\n\t\t\tdefault: q <= 64'hx;\n\t\tendcase\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput ena,\n\tinput [1:0] amount,\n\tinput [63:0] data,\n\toutput reg [63:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= ~data; // Complement of data is loaded instead of data itself\n\t\telse if (ena) case (amount)\n\t\t\t2'b00: q <= {q[62:0], 1'b0};\n\t\t\t2'b01: q <= {q[55:0], 8'b0};\n\t\t\t2'b10: q <= {q[63], q[63:1]};\n\t\t\t2'b11: q <= {{8{q[63]}}, q[63:8]};\n\t\t\tdefault: q <= 64'hx;\n\t\tendcase\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput ena,\n\tinput [1:0] amount,\n\tinput [63:0] data,\n\toutput reg [63:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse if (!ena) q <= q; // Added condition to maintain current state if 'ena' is low\n\t\telse case (amount)\n\t\t\t2'b00: q <= {q[62:0], 1'b0};\n\t\t\t2'b01: q <= {q[55:0], 8'b0};\n\t\t\t2'b10: q <= {q[63], q[63:1]};\n\t\t\t2'b11: q <= {{8{q[63]}}, q[63:8]};\n\t\t\tdefault: q <= 64'hx;\n\t\tendcase\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput ena,\n\tinput [1:0] amount,\n\tinput [63:0] data,\n\toutput reg [63:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse if (ena) case (amount)\n\t\t\t2'b00: q <= {q[61:0], 2'b00}; // Shift left by 2 instead of 1\n\t\t\t2'b01: q <= {q[55:0], 8'b0};\n\t\t\t2'b10: q <= {q[63], q[63:1]};\n\t\t\t2'b11: q <= {{8{q[63]}}, q[63:8]};\n\t\t\tdefault: q <= 64'hx;\n\t\tendcase\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput ena,\n\tinput [1:0] amount,\n\tinput [63:0] data,\n\toutput reg [63:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse if (ena) case (amount)\n\t\t\t2'b00: q <= {q[62:0], 1'b0};\n\t\t\t2'b01: q <= {q[55:0], 8'b0};\n\t\t\t2'b10: q <= {{1'b0}, q[63:1]}; // Changed MSB of right shift by 1 to 0\n\t\t\t2'b11: q <= {{8{q[63]}}, q[63:8]};\n\t\t\tdefault: q <= 64'hx;\n\t\tendcase\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput ena,\n\tinput [1:0] amount,\n\tinput [63:0] data,\n\toutput reg [63:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse if (ena) case (amount)\n\t\t\t2'b00: q <= {q[62:0], 1'b0};\n\t\t\t2'b01: q <= {q[55:0], 8'b0};\n\t\t\t2'b10: q <= {q[63], q[63:1]};\n\t\t\t2'b11: q <= {{8{1'b0}}, q[63:8]}; // Changed replicated q[63] to 0 in right shift by 8\n\t\t\tdefault: q <= 64'hx;\n\t\tendcase\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput ena,\n\tinput [1:0] amount,\n\tinput [63:0] data,\n\toutput reg [63:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse if (ena) case (amount)\n\t\t\t2'b00: q <= {q[63:0], 1'b0}; // Logically incorrect, attempting to concatenate beyond width\n\t\t\t2'b01: q <= {q[55:0], 8'b0};\n\t\t\t2'b10: q <= {q[63], q[63:1]};\n\t\t\t2'b11: q <= {{8{q[63]}}, q[63:8]};\n\t\t\tdefault: q <= 64'hx;\n\t\tendcase\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput ena,\n\tinput [1:0] amount,\n\tinput [63:0] data,\n\toutput reg [63:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse if (ena) case (amount)\n\t\t\t2'b00: q <= {q[62:0], 1'b0};\n\t\t\t2'b01: q <= {q[56:0], 7'b0}; // Shift left by 7 instead of 8\n\t\t\t2'b10: q <= {q[63], q[63:1]};\n\t\t\t2'b11: q <= {{8{q[63]}}, q[63:8]};\n\t\t\tdefault: q <= 64'hx;\n\t\tendcase\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput load,\n\tinput ena,\n\tinput [1:0] amount,\n\tinput [63:0] data,\n\toutput reg [63:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (load)\n\t\t\tq <= data;\n\t\telse if (ena) case (amount)\n\t\t\t2'b00: q <= {q[62:0], 1'b0};\n\t\t\t2'b01: q <= {q[55:0], 8'b0};\n\t\t\t2'b10: q <= {q[63], q[63:1]};\n\t\t\t2'b11: q <= {{8{q[63]}}, q[63:8]};\n\t\t\tdefault: q <= 64'bz; // Changed 64'hx (don't care) to 64'bz (high impedance)\n\t\tendcase\n\tend\nendmodule\n"]}
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{"task_id": "review2015_fsmseq", "mutants": ["module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n\toutput start_shifting);\n\n\tparameter S=0, S1=1, S11=2, S110=3, Done=4;\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = data ? S1: S; // No change\n\t\t\tS1: next = data ? S11: S; // Changed from S to S1 (minor logical error)\n\t\t\tS11: next = data ? S11 : S110;\n\t\t\tS110: next = data ? Done : S;\n\t\t\tDone: next = Done;\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\t\t\n\tassign start_shifting = state == Done;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n\toutput start_shifting);\n\n\tparameter S=0, S1=1, S11=2, S110=3, Done=5; // Changed Done value from 4 to 5, affecting the encoding\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = data ? S1: S; \n\t\t\tS1: next = data ? S11: S;\n\t\t\tS11: next = data ? S11 : S110;\n\t\t\tS110: next = data ? Done : S;\n\t\t\tDone: next = Done;\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\t\t\n\tassign start_shifting = state == Done;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n\toutput start_shifting);\n\n\tparameter S=0, S1=1, S11=2, S110=3, Done=4;\n\t\n\treg [3:0] state, next; // Changed reg bit width to [3:0] from [2:0]\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = data ? S1: S; \n\t\t\tS1: next = data ? S11: S;\n\t\t\tS11: next = data ? S11 : S110;\n\t\t\tS110: next = data ? Done : S;\n\t\t\tDone: next = Done;\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\t\t\n\tassign start_shifting = state == Done;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n\toutput start_shifting);\n\n\tparameter S=0, S1=1, S11=2, S110=3, Done=4;\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = data ? S1: S; \n\t\t\tS1: next = data ? S11: S;\n\t\t\tS11: next = data ? S110 : S110; // Changed from S11 : S110 to S110 : S110 (logical error)\n\t\t\tS110: next = data ? Done : S;\n\t\t\tDone: next = Done;\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\t\t\n\tassign start_shifting = state == Done;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n\toutput start_shifting);\n\n\tparameter S=0, S1=1, S11=2, S110=3, Done=4;\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = data ? S1: S1; // Changed from data ? S1: S to S1: S1 (logical error)\n\t\t\tS1: next = data ? S11: S;\n\t\t\tS11: next = data ? S11 : S110;\n\t\t\tS110: next = data ? Done : S;\n\t\t\tDone: next = Done;\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\t\t\n\tassign start_shifting = state == Done;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n\toutput start_shifting);\n\n\tparameter S=0, S1=1, S11=2, S110=3, Done=4;\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = data ? S : S; // Changed from data ? S1: S to S : S (stalls in state S)\n\t\t\tS1: next = data ? S11: S;\n\t\t\tS11: next = data ? S11 : S110;\n\t\t\tS110: next = data ? Done : S;\n\t\t\tDone: next = Done;\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\t\t\n\tassign start_shifting = state == Done;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n\toutput start_shifting);\n\n\tparameter S=0, S1=1, S11=2, S110=3, Done=4;\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = data ? S1: S; \n\t\t\tS1: next = data ? S11: S;\n\t\t\tS11: next = data ? S11 : S110;\n\t\t\tS110: next = !data ? Done : S; // Changed from data ? Done : S to !data ? Done : S (logical inversion)\n\t\t\tDone: next = Done;\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\t\t\n\tassign start_shifting = state == Done;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n\toutput start_shifting);\n\n\tparameter S=0, S1=1, S11=2, S110=3, Done=4;\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = data ? S1: S; \n\t\t\tS1: next = !data ? S11: S; // Changed from data ? S11: S to !data ? S11: S (logical inversion)\n\t\t\tS11: next = data ? S11 : S110;\n\t\t\tS110: next = data ? Done : S;\n\t\t\tDone: next = Done;\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\t\t\n\tassign start_shifting = state == Done;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n\toutput start_shifting);\n\n\tparameter S=0, S1=1, S11=2, S110=3, Done=4;\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = data ? S1: S; \n\t\t\tS1: next = data ? S11: S;\n\t\t\tS11: next = data ? S : S110; // Changed from data ? S11 : S110 to data ? S : S110 (logical error)\n\t\t\tS110: next = data ? Done : S;\n\t\t\tDone: next = Done;\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\t\t\n\tassign start_shifting = state == Done;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\tinput data,\n\toutput start_shifting);\n\n\tparameter S=0, S1=1, S11=2, S110=3, Done=4;\n\t\n\treg [2:0] state, next;\n\t\n\talways_comb begin\n\t\tcase (state)\n\t\t\tS: next = data ? S1: S; \n\t\t\tS1: next = data ? S11: S;\n\t\t\tS11: next = data ? S11 : S110;\n\t\t\tS110: next = data ? S : Done; // Changed from data ? Done : S to data ? S : Done (swap error and done conditions)\n\t\t\tDone: next = Done;\n\t\tendcase\n\tend\n\t\n\talways @(posedge clk)\n\t\tif (reset) state <= S;\n\t\telse state <= next;\n\t\t\n\tassign start_shifting = state == Done;\nendmodule\n"]}
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{"task_id": "m2014_q4b", "mutants": ["module top_module (\n\tinput clk,\n\tinput d,\n\tinput ar,\n\toutput logic q\n);\n\n\talways@(posedge clk or posedge ar) begin\n\t\tif (ar)\n\t\t\tq <= 1; // Changed reset value to 1 instead of 0\n\t\telse\n\t\t\tq <= d;\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput d,\n\tinput ar,\n\toutput logic q\n);\n\n\talways@(posedge clk or posedge ar) begin\n\t\tif (!ar) // Changed condition to negate \"ar\"\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d;\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput d,\n\tinput ar,\n\toutput logic q\n);\n\n\talways@(posedge clk or posedge ar) begin\n\t\tif (ar)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= !d; // Changed data assignment to the negation of \"d\"\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput d,\n\tinput ar,\n\toutput logic q\n);\n\n\talways@(posedge clk or negedge ar) begin // Changed sensitivity to negedge of \"ar\" instead of posedge\n\t\tif (ar)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d;\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput d,\n\tinput ar,\n\toutput logic q\n);\n\n\talways@(posedge clk) begin // Removed \"ar\" from sensitivity list\n\t\tif (ar)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d;\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput d,\n\tinput ar,\n\toutput logic q\n);\n\n\talways@(posedge clk or posedge ar) begin\n\t\tif (ar)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d; // No change, commented out for demonstration\n\t\t// This is actually the original logic, wrongly indicated as a mutation for illustration.\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput d,\n\tinput ar,\n\toutput logic q\n);\n\n\talways@(posedge clk or posedge ar) begin\n\t\tif (ar)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d & ar; // Changed assignment to \"d\" AND \"ar\"\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput d,\n\tinput ar,\n\toutput logic q\n);\n\n\talways@(posedge clk or posedge ar) begin\n\t\tif (ar)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d | ar; // Changed assignment to \"d\" OR \"ar\"\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput d,\n\tinput ar,\n\toutput logic q\n);\n\n\talways@(posedge clk or posedge ar) begin\n\t\t// Added dummy logic that does not affect functionality\n\t\tif (ar)\n\t\t\tq <= 0;\n\t\telse if (!ar)\n\t\t\tq <= d;\n\t\telse\n\t\t\tq <= d; // Unnecessary else case\n\tend\n\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput d,\n\tinput ar,\n\toutput logic q\n);\n\n\talways@(posedge clk or posedge ar) begin\n\t\tif (ar)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d ^ ar; // Changed assignment to \"d\" XOR \"ar\"\n\tend\n\nendmodule\n"]}
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{"task_id": "review2015_shiftcount", "mutants": ["module top_module(\n\tinput clk,\n\tinput shift_ena,\n\tinput count_ena,\n\tinput data,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (shift_ena)\n\t\t\tq <= { q[2:0], data }; // Changed from q[2:0] to q[3:1], incorrect shifting\n\t\telse if (count_ena)\n\t\t\tq <= q - 1'b1;\n\tend \n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput shift_ena,\n\tinput count_ena,\n\tinput data,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (shift_ena)\n\t\t\tq <= { q[2:1], data, q[0] }; // Changed bits position in the concatenation\n\t\telse if (count_ena)\n\t\t\tq <= q - 1'b1;\n\tend \n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput shift_ena,\n\tinput count_ena,\n\tinput data,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (shift_ena)\n\t\t\tq <= { q[2:0], data };\n\t\telse if (count_ena)\n\t\t\tq <= q - 1'b0; // Changed the decrement value to 0, no decrement\n\tend \n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput shift_ena,\n\tinput count_ena,\n\tinput data,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (shift_ena)\n\t\t\tq <= { q[2:0], !data }; // Inverted the data bit\n\t\telse if (count_ena)\n\t\t\tq <= q - 1'b1;\n\tend \n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput shift_ena,\n\tinput count_ena,\n\tinput data,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (shift_ena)\n\t\t\tq <= { data, q[3:1] }; // Shifted in the data at the MSB, wrong shifting direction\n\t\telse if (count_ena)\n\t\t\tq <= q - 1'b1;\n\tend \n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput shift_ena,\n\tinput count_ena,\n\tinput data,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (shift_ena)\n\t\t\tq <= { q[1:0], data, q[3] }; // Altered bit positions in concatenation\n\t\telse if (count_ena)\n\t\t\tq <= q - 1'b1;\n\tend \n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput shift_ena,\n\tinput count_ena,\n\tinput data,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (shift_ena)\n\t\t\tq <= { q[3], q[2:0] }; // Incorrectly shifted q[3] into q[3] again\n\t\telse if (count_ena)\n\t\t\tq <= q - 1'b1;\n\tend \n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput shift_ena,\n\tinput count_ena,\n\tinput data,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (shift_ena)\n\t\t\tq <= { q[2:0], 1'b0 }; // Shifted in a 0 instead of data\n\t\telse if (count_ena)\n\t\t\tq <= q - 1'b1;\n\tend \n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput shift_ena,\n\tinput count_ena,\n\tinput data,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (shift_ena)\n\t\t\tq <= { q[2:0], data };\n\t\telse if (count_ena)\n\t\t\tq <= q + 1'b1; // Changed to increment instead of decrement\n\tend \n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput shift_ena,\n\tinput count_ena,\n\tinput data,\n\toutput reg [3:0] q);\n\t\n\talways @(posedge clk) begin\n\t\tif (shift_ena)\n\t\t\tq <= { 2'b10, q[1:0] }; // Changed to shift in a constant value at the MSB\n\t\telse if (count_ena)\n\t\t\tq <= q - 1'b1;\n\tend \n\t\nendmodule\n"]}
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{"task_id": "dff8ar", "mutants": ["module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput areset,\n\toutput reg [7:0] q);\n\n\talways @(posedge clk, posedge areset)\n\t\tif (areset)\n\t\t\tq <= 8'hFF; // Change: Reset value changed from 0 to 255 (0xFF)\n\t\telse\n\t\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput areset,\n\toutput reg [7:0] q);\n\n\talways @(posedge clk, negedge areset) // Change: Trigger on negative edge of areset instead of positive\n\t\tif (!areset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput areset,\n\toutput reg [7:0] q);\n\n\talways @(posedge clk) // Change: Removed posedge areset from sensitivity list\n\t\tif (areset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput areset,\n\toutput reg [7:0] q);\n\n\talways @(posedge clk, posedge areset)\n\t\tif (areset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d[7:0]; // Redundant change: Explicitly specifying the full range of d\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [6:0] d, // Change: Width of d reduced to 7 bits\n\tinput areset,\n\toutput reg [7:0] q);\n\n\talways @(posedge clk, posedge areset)\n\t\tif (areset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= {1'b0, d}; // Adding a leading zero to keep q's width consistent\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput areset,\n\toutput reg [7:1] q); // Change: Width of q reduced to 7 bits\n\n\talways @(posedge clk, posedge areset)\n\t\tif (areset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d[7:1]; // Ignoring the LSB of d\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput areset,\n\toutput reg [7:0] q);\n\n\talways @(posedge clk, posedge areset)\n\t\tif (areset)\n\t\t\tq <= 1; // Change: Reset value changed from 0 to 1\n\t\telse\n\t\t\tq <= d;\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput areset,\n\toutput reg [7:0] q);\n\n\talways @(posedge clk, posedge areset)\n\t\tif (areset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= d ^ 8'hFF; // Change: Inverting d before assignment to q\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput areset,\n\toutput reg [7:0] q);\n\n\talways @(posedge clk, posedge areset)\n\t\tif (areset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq <= {d[6:0], d[7]}; // Change: Circular rotate right by 1\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput [7:0] d,\n\tinput areset,\n\toutput reg [7:0] q);\n\n\talways @(posedge clk, posedge areset)\n\t\tif (areset)\n\t\t\tq <= 0;\n\t\telse\n\t\t\tq[7:1] <= d[6:0]; // Change: Assigning only lower 7 bits of d to higher 7 bits of q\n\t\t\tq[0] <= d[7]; // Assigning MSB of d to LSB of q\n\t\nendmodule\n"]}
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{"task_id": "lfsr32", "mutants": ["module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [31:0] q);\n\t\n\tlogic [31:0] q_next;\n\talways@(q) begin\n\t\tq_next = q[31:1];\n\t\tq_next[31] = q[0];\n\t\tq_next[22] ^= q[0]; // Changed the tap from 21 to 22, which is incorrect per the original spec.\n\t\tq_next[1] ^= q[0];\n\t\tq_next[0] ^= q[0];\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 32'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [31:0] q);\n\t\n\tlogic [31:0] q_next;\n\talways@(q) begin\n\t\tq_next = q[31:0]; // Removed the shift operation making q_next[31:1] equal to q[31:0].\n\t\tq_next[31] = q[0];\n\t\tq_next[21] ^= q[0];\n\t\tq_next[1] ^= q[0];\n\t\tq_next[0] ^= q[0];\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 32'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [31:0] q);\n\t\n\tlogic [31:0] q_next;\n\talways@(q) begin\n\t\tq_next = q[31:1];\n\t\tq_next[31] = ~q[0]; // Inverted the q[0] value.\n\t\tq_next[21] ^= q[0];\n\t\tq_next[1] ^= q[0];\n\t\tq_next[0] ^= q[0];\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 32'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [31:0] q);\n\t\n\tlogic [31:0] q_next;\n\talways@(q) begin\n\t\tq_next = q[31:1];\n\t\tq_next[31] = q[0];\n\t\tq_next[21] ^= q[0];\n\t\tq_next[2] ^= q[0]; // Changed the position to 2, which is already a tap, so no effective change in the logic.\n\t\tq_next[0] ^= q[0];\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 32'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [31:0] q);\n\t\n\tlogic [31:0] q_next;\n\talways@(q) begin\n\t\tq_next = q[31:1];\n\t\tq_next[31] = q[0];\n\t\tq_next[21] ^= q[0];\n\t\tq_next[1] ^= ~q[0]; // Inverted the XOR operation input.\n\t\tq_next[0] ^= q[0];\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 32'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [31:0] q);\n\t\n\tlogic [31:0] q_next;\n\talways@(q) begin\n\t\tq_next = q[31:1];\n\t\tq_next[31] = q[0];\n\t\tq_next[21] ^= q[0];\n\t\tq_next[1] ^= q[0];\n\t\tq_next[0] ^= ~q[0]; // Inverted the XOR operation input for the last bit.\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 32'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [31:0] q);\n\t\n\tlogic [31:0] q_next;\n\talways@(posedge clk) begin // Changed the sensitivity list from @(q) to @(posedge clk).\n\t\tq_next = q[31:1];\n\t\tq_next[31] = q[0];\n\t\tq_next[21] ^= q[0];\n\t\tq_next[1] ^= q[0];\n\t\tq_next[0] ^= q[0];\n\t\tif (reset)\n\t\t\tq <= 32'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [31:0] q);\n\t\n\tlogic [31:0] q_next;\n\talways@(reset) begin // Changed the sensitivity list to only trigger on reset.\n\t\tq_next = q[31:1];\n\t\tq_next[31] = q[0];\n\t\tq_next[21] ^= q[0];\n\t\tq_next[1] ^= q[0];\n\t\tq_next[0] ^= q[0];\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 32'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [31:0] q);\n\t\n\tlogic [31:0] q_next;\n\talways@(q) begin\n\t\tq_next = {q[30:0], q[31]}; // Swapped the positions, effectively shifting the register the wrong way.\n\t\tq_next[31] = q[0];\n\t\tq_next[21] ^= q[0];\n\t\tq_next[1] ^= q[0];\n\t\tq_next[0] ^= q[0];\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 32'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput reg [31:0] q);\n\t\n\tlogic [31:0] q_next;\n\talways@(q) begin\n\t\tq_next = q[31:1];\n\t\tq_next[30] = q[0]; // Incorrectly assigned q[0] to q_next[30] instead of q_next[31].\n\t\tq_next[21] ^= q[0];\n\t\tq_next[1] ^= q[0];\n\t\tq_next[0] ^= q[0];\n\tend\n\t\n\talways @(posedge clk) begin\n\t\tif (reset)\n\t\t\tq <= 32'h1;\n\t\telse\n\t\t\tq <= q_next;\n\tend\nendmodule\n"]}
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{"task_id": "2014_q4a", "mutants": ["module top_module (\n\tinput clk,\n\tinput w,\n\tinput R,\n\tinput E,\n\tinput L,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tif (L)\n\t\t\tQ <= R; // Original: Q <= R; Mutant: no change, serves as a base for comparison.\n\t\telse if (E)\n\t\t\tQ <= !w; // Change: Negated the input w.\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput w,\n\tinput R,\n\tinput E,\n\tinput L,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tif (!L) // Change: Negated the condition for L.\n\t\t\tQ <= R;\n\t\telse if (E)\n\t\t\tQ <= w;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput w,\n\tinput R,\n\tinput E,\n\tinput L,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tif (L)\n\t\t\tQ <= !R; // Change: Negated the input R.\n\t\telse if (E)\n\t\t\tQ <= w;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput w,\n\tinput R,\n\tinput E,\n\tinput L,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tif (L)\n\t\t\tQ <= R;\n\t\telse if (!E) // Change: Negated the condition for E.\n\t\t\tQ <= w;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput w,\n\tinput R,\n\tinput E,\n\tinput L,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tif (L)\n\t\t\tQ <= R;\n\t\telse if (E)\n\t\t\tQ <= Q; // Change: Q is assigned to itself instead of w.\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput w,\n\tinput R,\n\tinput E,\n\tinput L,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tif (L)\n\t\t\tQ <= R;\n\t\telse if (E) // Original condition\n\t\t\tQ <= w; // Original action\n\t\t// Change: Added a redundant else statement that does nothing.\n\t\telse\n\t\t\tQ <= Q;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput w,\n\tinput R,\n\tinput E,\n\tinput L,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tif (L)\n\t\t\tQ <= w; // Change: The value of Q is set to w instead of R when L is asserted.\n\t\telse if (E)\n\t\t\tQ <= w;\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput w,\n\tinput R,\n\tinput E,\n\tinput L,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tif (L)\n\t\t\tQ <= R;\n\t\telse if (E)\n\t\t\tQ <= R; // Change: The value of Q is set to R instead of w when E is asserted.\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput w,\n\tinput R,\n\tinput E,\n\tinput L,\n\toutput reg Q\n);\n\n\t// Change: Removed the always block thereby making Q constant.\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput w,\n\tinput R,\n\tinput E,\n\tinput L,\n\toutput reg Q\n);\n\n\talways @(posedge clk)\n\t\tif (L)\n\t\t\tQ <= R;\n\t\telse if (E)\n\t\t\tQ <= 1'b0; // Change: The value of Q is set to a constant 0 when E is asserted.\n\t\nendmodule\n"]}
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{"task_id": "alwaysblock2", "mutants": ["module top_module(\n\tinput clk,\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_always_comb,\n\toutput reg out_always_ff\n);\n\t\n\tassign out_assign = a ^ b;\n\talways @(*) out_always_comb = a ^ b;\n\talways @(posedge clk) out_always_ff <= a & b; // Changed XOR to AND for out_always_ff\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_always_comb,\n\toutput reg out_always_ff\n);\n\t\n\tassign out_assign = a ^ b;\n\talways @(*) out_always_comb = a | b; // Changed XOR to OR for out_always_comb\n\talways @(posedge clk) out_always_ff <= a ^ b;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_always_comb,\n\toutput reg out_always_ff\n);\n\t\n\tassign out_assign = a & b; // Changed XOR to AND for out_assign\n\talways @(*) out_always_comb = a ^ b;\n\talways @(posedge clk) out_always_ff <= a ^ b;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_always_comb,\n\toutput reg out_always_ff\n);\n\t\n\tassign out_assign = a ^ b;\n\talways @(*) out_always_comb = ~(a ^ b); // Added inversion to out_always_comb\n\talways @(posedge clk) out_always_ff <= a ^ b;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_always_comb,\n\toutput reg out_always_ff\n);\n\t\n\tassign out_assign = a ^ b;\n\talways @(*) out_always_comb = a ^ b;\n\talways @(posedge clk) out_always_ff <= ~(a ^ b); // Added inversion to out_always_ff\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_always_comb,\n\toutput reg out_always_ff\n);\n\t\n\tassign out_assign = a ^~ b; // Added inversion to b for out_assign\n\talways @(*) out_always_comb = a ^ b;\n\talways @(posedge clk) out_always_ff <= a ^ b;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_always_comb,\n\toutput reg out_always_ff\n);\n\t\n\tassign out_assign = a ^ b;\n\talways @(*) out_always_comb = a ^~ b; // Added inversion to b for out_always_comb\n\talways @(posedge clk) out_always_ff <= a ^ b;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_always_comb,\n\toutput reg out_always_ff\n);\n\t\n\tassign out_assign = a ^ b;\n\talways @(*) out_always_comb = a ^ b;\n\talways @(posedge clk) out_always_ff <= a ^~ b; // Added inversion to b for out_always_ff\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_always_comb,\n\toutput reg out_always_ff\n);\n\t\n\tassign out_assign = a ~^ b; // Changed XOR to XNOR for out_assign\n\talways @(*) out_always_comb = a ^ b;\n\talways @(posedge clk) out_always_ff <= a ^ b;\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_always_comb,\n\toutput reg out_always_ff\n);\n\t\n\tassign out_assign = a ^ b;\n\talways @(*) out_always_comb = a ~^ b; // Changed XOR to XNOR for out_always_comb\n\talways @(posedge clk) out_always_ff <= a ^ b;\nendmodule\n"]}
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{"task_id": "countbcd", "mutants": ["module top_module(\n\tinput clk,\n\tinput reset,\n\toutput [3:1] ena,\n\toutput reg [15:0] q);\n\n\twire [3:0] enable = { q[11:0]==12'h998, q[7:0]==8'h99, q[3:0] == 4'h9, 1'b1}; // Changed 12'h999 to 12'h998\n\tassign ena = enable[3:1];\n\talways @(posedge clk)\n\t\tfor (int i=0;i<4;i++) begin\n\t\t\tif (reset || (q[i*4 +:4] == 9 && enable[i]))\n\t\t\t\tq[i*4 +:4] <= 0;\n\t\t\telse if (enable[i])\n\t\t\t\tq[i*4 +:4] <= q[i*4 +:4]+1;\n\t\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput [3:1] ena,\n\toutput reg [15:0] q);\n\n\twire [3:0] enable = { q[11:0]==12'h999, q[7:0]==8'h98, q[3:0] == 4'h9, 1'b1}; // Changed 8'h99 to 8'h98\n\tassign ena = enable[3:1];\n\talways @(posedge clk)\n\t\tfor (int i=0;i<4;i++) begin\n\t\t\tif (reset || (q[i*4 +:4] == 9 && enable[i]))\n\t\t\t\tq[i*4 +:4] <= 0;\n\t\t\telse if (enable[i])\n\t\t\t\tq[i*4 +:4] <= q[i*4 +:4]+1;\n\t\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput [3:1] ena,\n\toutput reg [15:0] q);\n\n\twire [3:0] enable = { q[11:0]==12'h999, q[7:0]==8'h99, q[3:0] == 4'h8, 1'b1}; // Changed 4'h9 to 4'h8\n\tassign ena = enable[3:1];\n\talways @(posedge clk)\n\t\tfor (int i=0;i<4;i++) begin\n\t\t\tif (reset || (q[i*4 +:4] == 9 && enable[i]))\n\t\t\t\tq[i*4 +:4] <= 0;\n\t\t\telse if (enable[i])\n\t\t\t\tq[i*4 +:4] <= q[i*4 +:4]+1;\n\t\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput [3:1] ena,\n\toutput reg [15:0] q);\n\n\twire [3:0] enable = { q[11:0]==12'h999, q[7:0]==8'h99, q[3:0] == 4'h9, 1'b0}; // Changed 1'b1 to 1'b0\n\tassign ena = enable[3:1];\n\talways @(posedge clk)\n\t\tfor (int i=0;i<4;i++) begin\n\t\t\tif (reset || (q[i*4 +:4] == 9 && enable[i]))\n\t\t\t\tq[i*4 +:4] <= 0;\n\t\t\telse if (enable[i])\n\t\t\t\tq[i*4 +:4] <= q[i*4 +:4]+1;\n\t\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput [3:1] ena,\n\toutput reg [15:0] q);\n\n\twire [3:0] enable = { q[11:0]==12'h999, q[7:0]==8'h99, q[3:0] == 4'h9, 1'b1};\n\tassign ena = enable[3:1];\n\talways @(posedge clk)\n\t\tfor (int i=0;i<3;i++) begin // Changed loop limit from 4 to 3\n\t\t\tif (reset || (q[i*4 +:4] == 9 && enable[i]))\n\t\t\t\tq[i*4 +:4] <= 0;\n\t\t\telse if (enable[i])\n\t\t\t\tq[i*4 +:4] <= q[i*4 +:4]+1;\n\t\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput [3:1] ena,\n\toutput reg [15:0] q);\n\n\twire [3:0] enable = { q[11:0]==12'h999, q[7:0]==8'h99, q[3:0] == 4'h9, 1'b1};\n\tassign ena = enable[3:1];\n\talways @(posedge clk)\n\t\tfor (int i=0;i<4;i++) begin\n\t\t\tif (reset || (q[i*4 +:4] == 8 && enable[i])) // Changed comparison value from 9 to 8\n\t\t\t\tq[i*4 +:4] <= 0;\n\t\t\telse if (enable[i])\n\t\t\t\tq[i*4 +:4] <= q[i*4 +:4]+1;\n\t\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput [3:1] ena,\n\toutput reg [15:0] q);\n\n\twire [3:0] enable = { q[11:0]==12'h999, q[7:0]==8'h99, q[3:0] == 4'h9, 1'b1};\n\tassign ena = enable[3:1];\n\talways @(posedge clk)\n\t\tfor (int i=1;i<4;i++) begin // Changed loop start from 0 to 1\n\t\t\tif (reset || (q[i*4 +:4] == 9 && enable[i]))\n\t\t\t\tq[i*4 +:4] <= 0;\n\t\t\telse if (enable[i])\n\t\t\t\tq[i*4 +:4] <= q[i*4 +:4]+1;\n\t\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput [3:1] ena,\n\toutput reg [15:0] q);\n\n\twire [3:0] enable = { q[11:0]==12'h999, q[7:0]==8'h99, q[3:0] == 4'h9, 1'b1};\n\tassign ena = enable[2:0]; // Changed enable[3:1] to enable[2:0]\n\talways @(posedge clk)\n\t\tfor (int i=0;i<4;i++) begin\n\t\t\tif (reset || (q[i*4 +:4] == 9 && enable[i]))\n\t\t\t\tq[i*4 +:4] <= 0;\n\t\t\telse if (enable[i])\n\t\t\t\tq[i*4 +:4] <= q[i*4 +:4]+1;\n\t\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput [3:1] ena,\n\toutput reg [15:0] q);\n\n\twire [3:0] enable = { q[11:0]==12'h997, q[7:0]==8'h99, q[3:0] == 4'h9, 1'b1}; // Changed 12'h999 to 12'h997\n\tassign ena = enable[3:1];\n\talways @(posedge clk)\n\t\tfor (int i=0;i<4;i++) begin\n\t\t\tif (reset || (q[i*4 +:4] == 9 && enable[i]))\n\t\t\t\tq[i*4 +:4] <= 0;\n\t\t\telse if (enable[i])\n\t\t\t\tq[i*4 +:4] <= q[i*4 +:4]+1;\n\t\tend\n\t\nendmodule\n", "module top_module(\n\tinput clk,\n\tinput reset,\n\toutput [3:1] ena,\n\toutput reg [15:0] q);\n\n\twire [3:0] enable = { q[11:0]==12'h999, q[7:0]==8'h99, q[3:0] == 4'hA, 1'b1}; // Changed 4'h9 to 4'hA\n\tassign ena = enable[3:1];\n\talways @(posedge clk)\n\t\tfor (int i=0;i<4;i++) begin\n\t\t\tif (reset || (q[i*4 +:4] == 9 && enable[i]))\n\t\t\t\tq[i*4 +:4] <= 0;\n\t\t\telse if (enable[i])\n\t\t\t\tq[i*4 +:4] <= q[i*4 +:4]+1;\n\t\tend\n\t\nendmodule\n"]}
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{"task_id": "m2014_q6b", "mutants": ["module top_module(\n\tinput [3:1] y,\n\tinput w,\n\toutput reg Y2);\n\t\n\talways_comb begin\n\t\tcase ({y, w})\n\t\t\t4'h0: Y2 = 1'b0; // No change\n\t\t\t4'h1: Y2 = 1'b0; // No change\n\t\t\t4'h2: Y2 = 1'b1; // No change\n\t\t\t4'h3: Y2 = 1'b1; // No change\n\t\t\t4'h4: Y2 = 1'b0; // No change\n\t\t\t4'h5: Y2 = 1'b1; // No change\n\t\t\t4'h6: Y2 = 1'b0; // No change\n\t\t\t4'h7: Y2 = 1'b1; // Changed 0 to 1\n\t\t\t4'h8: Y2 = 1'b0; // No change\n\t\t\t4'h9: Y2 = 1'b1; // No change\n\t\t\t4'ha: Y2 = 1'b1; // No change\n\t\t\t4'hb: Y2 = 1'b1; // No change\n\t\t\tdefault: Y2 = 1'bx;\n\t\tendcase\n\tend\nendmodule\n", "module top_module(\n\tinput [3:1] y,\n\tinput w,\n\toutput reg Y2);\n\t\n\talways_comb begin\n\t\tcase ({y, w})\n\t\t\t4'h0: Y2 = 1'b0; // No change\n\t\t\t4'h1: Y2 = 1'b1; // Changed 0 to 1\n\t\t\t4'h2: Y2 = 1'b1; // No change\n\t\t\t4'h3: Y2 = 1'b1; // No change\n\t\t\t4'h4: Y2 = 1'b0; // No change\n\t\t\t4'h5: Y2 = 1'b1; // No change\n\t\t\t4'h6: Y2 = 1'b0; // No change\n\t\t\t4'h7: Y2 = 1'b0; // No change\n\t\t\t4'h8: Y2 = 1'b0; // No change\n\t\t\t4'h9: Y2 = 1'b1; // No change\n\t\t\t4'ha: Y2 = 1'b1; // No change\n\t\t\t4'hb: Y2 = 1'b1; // No change\n\t\t\tdefault: Y2 = 1'bx;\n\t\tendcase\n\tend\nendmodule\n", "module top_module(\n\tinput [3:1] y,\n\tinput w,\n\toutput reg Y2);\n\t\n\talways_comb begin\n\t\tcase ({y, w})\n\t\t\t4'h0: Y2 = 1'b0; // No change\n\t\t\t4'h1: Y2 = 1'b0; // No change\n\t\t\t4'h2: Y2 = 1'b0; // Changed 1 to 0\n\t\t\t4'h3: Y2 = 1'b1; // No change\n\t\t\t4'h4: Y2 = 1'b0; // No change\n\t\t\t4'h5: Y2 = 1'b1; // No change\n\t\t\t4'h6: Y2 = 1'b0; // No change\n\t\t\t4'h7: Y2 = 1'b0; // No change\n\t\t\t4'h8: Y2 = 1'b0; // No change\n\t\t\t4'h9: Y2 = 1'b1; // No change\n\t\t\t4'ha: Y2 = 1'b1; // No change\n\t\t\t4'hb: Y2 = 1'b1; // No change\n\t\t\tdefault: Y2 = 1'bx;\n\t\tendcase\n\tend\nendmodule\n", "module top_module(\n\tinput [3:1] y,\n\tinput w,\n\toutput reg Y2);\n\t\n\talways_comb begin\n\t\tcase ({y, w})\n\t\t\t4'h0: Y2 = 1'b1; // Changed 0 to 1\n\t\t\t4'h1: Y2 = 1'b0; // No change\n\t\t\t4'h2: Y2 = 1'b1; // No change\n\t\t\t4'h3: Y2 = 1'b1; // No change\n\t\t\t4'h4: Y2 = 1'b0; // No change\n\t\t\t4'h5: Y2 = 1'b1; // No change\n\t\t\t4'h6: Y2 = 1'b0; // No change\n\t\t\t4'h7: Y2 = 1'b0; // No change\n\t\t\t4'h8: Y2 = 1'b0; // No change\n\t\t\t4'h9: Y2 = 1'b1; // No change\n\t\t\t4'ha: Y2 = 1'b1; // No change\n\t\t\t4'hb: Y2 = 1'b1; // No change\n\t\t\tdefault: Y2 = 1'bx;\n\t\tendcase\n\tend\nendmodule\n", "module top_module(\n\tinput [3:1] y,\n\tinput w,\n\toutput reg Y2);\n\t\n\talways_comb begin\n\t\tcase ({y, w})\n\t\t\t4'h0: Y2 = 1'b0; // No change\n\t\t\t4'h1: Y2 = 1'b0; // No change\n\t\t\t4'h2: Y2 = 1'b1; // No change\n\t\t\t4'h3: Y2 = 1'b1; // No change\n\t\t\t4'h4: Y2 = 1'b1; // Changed 0 to 1\n\t\t\t4'h5: Y2 = 1'b1; // No change\n\t\t\t4'h6: Y2 = 1'b0; // No change\n\t\t\t4'h7: Y2 = 1'b0; // No change\n\t\t\t4'h8: Y2 = 1'b0; // No change\n\t\t\t4'h9: Y2 = 1'b1; // No change\n\t\t\t4'ha: Y2 = 1'b1; // No change\n\t\t\t4'hb: Y2 = 1'b1; // No change\n\t\t\tdefault: Y2 = 1'bx;\n\t\tendcase\n\tend\nendmodule\n", "module top_module(\n\tinput [3:1] y,\n\tinput w,\n\toutput reg Y2);\n\t\n\talways_comb begin\n\t\tcase ({y, w})\n\t\t\t4'h0: Y2 = 1'b0; // No change\n\t\t\t4'h1: Y2 = 1'b0; // No change\n\t\t\t4'h2: Y2 = 1'b1; // No change\n\t\t\t4'h3: Y2 = 1'b1; // No change\n\t\t\t4'h4: Y2 = 1'b0; // No change\n\t\t\t4'h5: Y2 = 1'b0; // Changed 1 to 0\n\t\t\t4'h6: Y2 = 1'b0; // No change\n\t\t\t4'h7: Y2 = 1'b0; // No change\n\t\t\t4'h8: Y2 = 1'b0; // No change\n\t\t\t4'h9: Y2 = 1'b1; // No change\n\t\t\t4'ha: Y2 = 1'b1; // No change\n\t\t\t4'hb: Y2 = 1'b1; // No change\n\t\t\tdefault: Y2 = 1'bx;\n\t\tendcase\n\tend\nendmodule\n", "module top_module(\n\tinput [3:1] y,\n\tinput w,\n\toutput reg Y2);\n\t\n\talways_comb begin\n\t\tcase ({y, w})\n\t\t\t4'h0: Y2 = 1'b0; // No change\n\t\t\t4'h1: Y2 = 1'b0; // No change\n\t\t\t4'h2: Y2 = 1'b1; // No change\n\t\t\t4'h3: Y2 = 1'b0; // Changed 1 to 0\n\t\t\t4'h4: Y2 = 1'b0; // No change\n\t\t\t4'h5: Y2 = 1'b1; // No change\n\t\t\t4'h6: Y2 = 1'b0; // No change\n\t\t\t4'h7: Y2 = 1'b0; // No change\n\t\t\t4'h8: Y2 = 1'b0; // No change\n\t\t\t4'h9: Y2 = 1'b1; // No change\n\t\t\t4'ha: Y2 = 1'b1; // No change\n\t\t\t4'hb: Y2 = 1'b1; // No change\n\t\t\tdefault: Y2 = 1'bx;\n\t\tendcase\n\tend\nendmodule\n", "module top_module(\n\tinput [3:1] y,\n\tinput w,\n\toutput reg Y2);\n\t\n\talways_comb begin\n\t\tcase ({y, w})\n\t\t\t4'h0: Y2 = 1'b0; // No change\n\t\t\t4'h1: Y2 = 1'b0; // No change\n\t\t\t4'h2: Y2 = 1'b1; // No change\n\t\t\t4'h3: Y2 = 1'b1; // No change\n\t\t\t4'h4: Y2 = 1'b0; // No change\n\t\t\t4'h5: Y2 = 1'b1; // No change\n\t\t\t4'h6: Y2 = 1'b1; // Changed 0 to 1\n\t\t\t4'h7: Y2 = 1'b0; // No change\n\t\t\t4'h8: Y2 = 1'b0; // No change\n\t\t\t4'h9: Y2 = 1'b1; // No change\n\t\t\t4'ha: Y2 = 1'b1; // No change\n\t\t\t4'hb: Y2 = 1'b1; // No change\n\t\t\tdefault: Y2 = 1'bx;\n\t\tendcase\n\tend\nendmodule\n", "module top_module(\n\tinput [3:1] y,\n\tinput w,\n\toutput reg Y2);\n\t\n\talways_comb begin\n\t\tcase ({y, w})\n\t\t\t4'h0: Y2 = 1'b0; // No change\n\t\t\t4'h1: Y2 = 1'b0; // No change\n\t\t\t4'h2: Y2 = 1'b1; // No change\n\t\t\t4'h3: Y2 = 1'b1; // No change\n\t\t\t4'h4: Y2 = 1'b0; // No change\n\t\t\t4'h5: Y2 = 1'b1; // No change\n\t\t\t4'h6: Y2 = 1'b0; // No change\n\t\t\t4'h7: Y2 = 1'b0; // No change\n\t\t\t4'h8: Y2 = 1'b1; // Changed 0 to 1\n\t\t\t4'h9: Y2 = 1'b1; // No change\n\t\t\t4'ha: Y2 = 1'b1; // No change\n\t\t\t4'hb: Y2 = 1'b1; // No change\n\t\t\tdefault: Y2 = 1'bx; // No change\n\t\tendcase\n\tend\nendmodule\n", "module top_module(\n\tinput [3:1] y,\n\tinput w,\n\toutput reg Y2);\n\t\n\talways_comb begin\n\t\tcase ({y, w})\n\t\t\t4'h0: Y2 = 1'b0; // No change\n\t\t\t4'h1: Y2 = 1'b0; // No change\n\t\t\t4'h2: Y2 = 1'b1; // No change\n\t\t\t4'h3: Y2 = 1'b1; // No change\n\t\t\t4'h4: Y2 = 1'b0; // No change\n\t\t\t4'h5: Y2 = 1'b1; // No change\n\t\t\t4'h6: Y2 = 1'b0; // No change\n\t\t\t4'h7: Y2 = 1'b0; // No change\n\t\t\t4'h8: Y2 = 1'b0; // No change\n\t\t\t4'h9: Y2 = 1'b0; // Changed 1 to 0\n\t\t\t4'ha: Y2 = 1'b1; // No change\n\t\t\t4'hb: Y2 = 1'b1; // No change\n\t\t\tdefault: Y2 = 1'bx;\n\t\tendcase\n\tend\nendmodule\n"]}
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{"task_id": "ringer", "mutants": ["module top_module(\n\tinput ring, \n\tinput vibrate_mode,\n\toutput ringer,\n\toutput motor\n);\n\t\n\tassign ringer = ring & ~vibrate_mode; // No change\n\tassign motor = ring | vibrate_mode; // Changed & to | for motor assignment\n\nendmodule\n", "module top_module(\n\tinput ring, \n\tinput vibrate_mode,\n\toutput ringer,\n\toutput motor\n);\n\t\n\tassign ringer = ring | ~vibrate_mode; // Changed & to | for ringer assignment\n\tassign motor = ring & vibrate_mode; // No change\n\nendmodule\n", "module top_module(\n\tinput ring, \n\tinput vibrate_mode,\n\toutput ringer,\n\toutput motor\n);\n\t\n\tassign ringer = ring ^ ~vibrate_mode; // Changed & to ^ for ringer assignment\n\tassign motor = ring & vibrate_mode; // No change\n\nendmodule\n", "module top_module(\n\tinput ring, \n\tinput vibrate_mode,\n\toutput ringer,\n\toutput motor\n);\n\t\n\tassign ringer = ring & ~vibrate_mode; // No change\n\tassign motor = ring ^ vibrate_mode; // Changed & to ^ for motor assignment\n\nendmodule\n", "module top_module(\n\tinput ring, \n\tinput vibrate_mode,\n\toutput ringer,\n\toutput motor\n);\n\t\n\tassign ringer = ~ring & ~vibrate_mode; // Added ~ before ring for ringer assignment\n\tassign motor = ring & vibrate_mode; // No change\n\nendmodule\n", "module top_module(\n\tinput ring, \n\tinput vibrate_mode,\n\toutput ringer,\n\toutput motor\n);\n\t\n\tassign ringer = ring & ~vibrate_mode; // No change\n\tassign motor = ~ring & vibrate_mode; // Added ~ before ring for motor assignment\n\nendmodule\n", "module top_module(\n\tinput ring, \n\tinput vibrate_mode,\n\toutput ringer,\n\toutput motor\n);\n\t\n\tassign ringer = ring & vibrate_mode; // Changed ~vibrate_mode to vibrate_mode for ringer assignment\n\tassign motor = ring & vibrate_mode; // No change\n\nendmodule\n", "module top_module(\n\tinput ring, \n\tinput vibrate_mode,\n\toutput ringer,\n\toutput motor\n);\n\t\n\tassign ringer = ring & ~vibrate_mode; // No change\n\tassign motor = !ring & vibrate_mode; // Changed & to & and ring to !ring for motor assignment\n\nendmodule\n", "module top_module(\n\tinput ring, \n\tinput vibrate_mode,\n\toutput ringer,\n\toutput motor\n);\n\t\n\tassign ringer = !ring & ~vibrate_mode; // Changed ring to !ring for ringer assignment\n\tassign motor = ring & vibrate_mode; // No change\n\nendmodule\n", "module top_module(\n\tinput ring, \n\tinput vibrate_mode,\n\toutput ringer,\n\toutput motor\n);\n\t\n\tassign ringer = ring & ~vibrate_mode; // No change\n\tassign motor = ring & !vibrate_mode; // Changed vibrate_mode to !vibrate_mode for motor assignment\n\nendmodule\n"]}
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{"task_id": "alwaysblock1", "mutants": ["module top_module(\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_alwaysblock\n);\n\t\n\tassign out_assign = a & b; // No change\n\talways @(a) out_alwaysblock = a & b; // Changed from always @(*) to always @(a)\n\t\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_alwaysblock\n);\n\t\n\tassign out_assign = a | b; // Changed & to |\n\talways @(*) out_alwaysblock = a & b; // No change\n\t\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_alwaysblock\n);\n\t\n\tassign out_assign = a & b; // No change\n\talways @(*) out_alwaysblock = a | b; // Changed & to |\n\t\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_alwaysblock\n);\n\t\n\tassign out_assign = ~a & b; // Added NOT operation to a\n\talways @(*) out_alwaysblock = a & b; // No change\n\t\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_alwaysblock\n);\n\t\n\tassign out_assign = a & b; // No change\n\talways @(*) out_alwaysblock = ~a & b; // Added NOT operation to a\n\t\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_alwaysblock\n);\n\t\n\tassign out_assign = a & ~b; // Added NOT operation to b\n\talways @(*) out_alwaysblock = a & b; // No change\n\t\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_alwaysblock\n);\n\t\n\tassign out_assign = a & b; // No change\n\talways @(*) out_alwaysblock = a & ~b; // Added NOT operation to b\n\t\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_alwaysblock\n);\n\t\n\tassign out_assign = a & b; // No change\n\talways @(b) out_alwaysblock = a & b; // Changed from always @(*) to always @(b)\n\t\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_alwaysblock\n);\n\t\n\tassign out_assign = a ^ b; // Changed & to ^\n\talways @(*) out_alwaysblock = a & b; // No change\n\t\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\toutput out_assign,\n\toutput reg out_alwaysblock\n);\n\t\n\tassign out_assign = a & b; // No change\n\talways @(*) out_alwaysblock = a ^ b; // Changed & to ^\n\t\nendmodule\n"]}
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{"task_id": "zero", "mutants": ["module top_module(\n\toutput zero);\n\t\n\tassign zero = ~1'b1; // Changed 1'b0 to ~1'b1\n\nendmodule\n", "module top_module(\n\toutput zero);\n\t\n\tassign zero = 1'b0 & 1'b1; // Added an AND operation with 1\n\nendmodule\n", "module top_module(\n\toutput zero);\n\t\n\tassign zero = 1'b0 | 1'b0; // Added an OR operation with 0\n\nendmodule\n", "module top_module(\n\toutput zero);\n\t\n\tassign zero = 0; // Changed 1'b0 to 0\n\nendmodule\n", "module top_module(\n\toutput zero);\n\t\n\tassign zero = 1'b0 ^ 1'b0; // Added an XOR operation with 0\n\nendmodule\n"]}
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{"task_id": "vector2", "mutants": ["module top_module (\n input [31:0] in,\n output [31:0] out\n);\n\n assign out = {in[15:8], in[7:0], in[23:16], in[31:24]}; // Swapped first two bytes\n \nendmodule\n", "module top_module (\n input [31:0] in,\n output [31:0] out\n);\n\n assign out = {in[7:0], in[15:8], in[31:24], in[23:16]}; // Swapped last two bytes\n \nendmodule\n", "module top_module (\n input [31:0] in,\n output [31:0] out\n);\n\n assign out = {in[7:0], in[23:16], in[15:8], in[31:24]}; // Moved the third byte to the second position\n \nendmodule\n", "module top_module (\n input [31:0] in,\n output [31:0] out\n);\n\n assign out = {in[7:0], in[15:8], in[22:16], in[31:24]}; // Shortened the third byte by one bit\n \nendmodule\n", "module top_module (\n input [31:0] in,\n output [31:0] out\n);\n\n assign out = {in[6:0], in[15:8], in[23:16], in[31:24]}; // Shortened the first byte by one bit\n \nendmodule\n"]}
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{"task_id": "mt2015_q4a", "mutants": ["module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = (x^y) & y; // Change: replaced 'x' with 'y' in the expression\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = (x^y) | x; // Change: replaced '&' with '|'\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput reg z); // Change: 'output' type changed from wire to reg\n\n\talways @(x or y) begin\n\t\tz = (x^y) & x;\n\tend\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = (~x^y) & x; // Change: added '~' to 'x' in the expression\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = (x^~y) & x; // Change: added '~' to 'y' in the expression\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = (x^y) & ~x; // Change: added '~' to the second 'x' in the expression\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = (x^y); // Change: removed '& x' from the expression\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = x; // Change: simplified the expression to just 'x'\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = y; // Change: simplified the expression to just 'y'\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = (x^y) ^ x; // Change: replaced '&' with '^' for a different operation\nendmodule\n"]}
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{"task_id": "vector1", "mutants": ["module top_module (\n\tinput [15:0] in,\n\toutput [7:0] out_hi,\n\toutput [7:0] out_lo\n);\n\t\n\tassign {out_hi, out_lo} = {in[15:8], in[7:0]}; // Changed to explicit bit selection, no functional change.\n\nendmodule\n", "module top_module (\n\tinput [15:0] in,\n\toutput [7:0] out_hi,\n\toutput [7:0] out_lo\n);\n\t\n\tassign {out_hi, out_lo} = {in[7:0], in[15:8]}; // Swapped high and low byte assignments.\n\nendmodule\n", "module top_module (\n\tinput [15:0] in,\n\toutput [7:0] out_hi,\n\toutput [7:0] out_lo\n);\n\t\n\tassign out_hi = in[14:7]; // Change upper byte range.\n\tassign out_lo = in[6:0]; // Change lower byte range, losing 1 bit.\n\nendmodule\n", "module top_module (\n\tinput [15:0] in,\n\toutput [7:0] out_hi,\n\toutput [7:0] out_lo\n);\n\t\n\tassign out_hi = in[15:8];\n\tassign out_lo = in[8:1]; // Shifted lower byte to the right by 1 bit.\n\nendmodule\n", "module top_module (\n\tinput [15:0] in,\n\toutput [7:0] out_hi,\n\toutput [7:0] out_lo\n);\n\t\n\tassign out_hi = in[15:8] ^ 8'hFF; // Inverted the bits of out_hi.\n\tassign out_lo = in[7:0];\n\nendmodule\n", "module top_module (\n\tinput [15:0] in,\n\toutput [7:0] out_hi,\n\toutput [7:0] out_lo\n);\n\t\n\tassign out_hi = in[15:8];\n\tassign out_lo = in[7:0] & 8'hFF; // Logical AND with 0xFF, no functional change but adds redundancy.\n\nendmodule\n", "module top_module (\n\tinput [15:0] in,\n\toutput [7:0] out_hi,\n\toutput [7:0] out_lo\n);\n\t\n\tassign out_hi = in[15:8] | 8'h00; // Logical OR with 0x00, no functional change but adds redundancy.\n\tassign out_lo = in[7:0];\n\nendmodule\n", "module top_module (\n\tinput [15:0] in,\n\toutput [7:0] out_hi,\n\toutput [7:0] out_lo\n);\n\t\n\tassign out_hi = {1'b0, in[15:9]}; // Removed the MSB of out_hi and replaced with 0.\n\tassign out_lo = in[7:0];\n\nendmodule\n", "module top_module (\n\tinput [15:0] in,\n\toutput [7:0] out_hi,\n\toutput [7:0] out_lo\n);\n\t\n\tassign out_hi = {in[14:8], 1'b0}; // Removed the LSB of the original out_hi and appended 0 at the end.\n\tassign out_lo = in[7:0];\n\nendmodule\n", "module top_module (\n\tinput [15:0] in,\n\toutput [7:0] out_hi,\n\toutput [7:0] out_lo\n);\n\t\n\tassign out_hi = in[15:8];\n\tassign out_lo = {2'b00, in[6:1]}; // Reduced out_lo range and padded with 2'b00.\n\nendmodule\n"]}
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{"task_id": "norgate", "mutants": ["module top_module(\n input a, \n input b,\n output out\n);\n\n assign out = ~(a & b); // Changed | to &\n \nendmodule\n", "module top_module(\n input a, \n input b,\n output out\n);\n\n assign out = ~(a | b | a); // Added an extra 'a' in the NOR operation\n \nendmodule\n", "module top_module(\n input a, \n input b,\n output out\n);\n\n assign out = ~(a | b) & a; // Added an AND operation with 'a'\n \nendmodule\n", "module top_module(\n input a, \n input b,\n output out\n);\n\n assign out = ~(a | b) | a; // Added an OR operation with 'a'\n \nendmodule\n", "module top_module(\n input a, \n input b,\n output reg out // Changed output type to reg\n);\n \n always @(a or b) begin\n out = ~(a | b); // Changed assign to always block\n end\n \nendmodule\n", "module top_module(\n input a, \n input b,\n output out\n);\n\n assign out = ~((a | b) ^ a); // Added an XOR operation with 'a'\n \nendmodule\n", "module top_module(\n input a, \n input b,\n output out\n);\n\n assign out = ~(a | b) ^ b; // Added an XOR operation with 'b'\n \nendmodule\n", "module top_module(\n input a, \n input b,\n output out\n);\n\n assign out = ~((a | b) & b); // Changed the NOR operation to include an AND with 'b'\n \nendmodule\n", "module top_module(\n input a, \n input b,\n output out\n);\n\n assign out = ~((a | b) | a); // Changed the NOR operation to include an OR with 'a'\n \nendmodule\n", "module top_module(\n input a, \n input b,\n output out\n);\n\n assign out = ~(a ^ b); // Changed | to ^ for XOR operation\n \nendmodule\n"]}
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{"task_id": "m2014_q6c", "mutants": ["module top_module (\n\tinput [6:1] y,\n\tinput w,\n\toutput Y2,\n\toutput Y4\n);\n\tassign Y2 = y[1]&w; // Changed ~w to w\n\tassign Y4 = (y[2]|y[3]|y[5]|y[6]) & w;\nendmodule\n", "module top_module (\n\tinput [6:1] y,\n\tinput w,\n\toutput Y2,\n\toutput Y4\n);\n\tassign Y2 = y[1]&~w;\n\tassign Y4 = (y[2]&y[3]|y[5]|y[6]) & w; // Changed | to & for y[2] and y[3]\nendmodule\n", "module top_module (\n\tinput [6:1] y,\n\tinput w,\n\toutput Y2,\n\toutput Y4\n);\n\tassign Y2 = y[1]&~w;\n\tassign Y4 = (y[2]|y[3]|y[4]|y[5]|y[6]) & w; // Added y[4] in the equation\nendmodule\n", "module top_module (\n\tinput [6:1] y,\n\tinput w,\n\toutput Y2,\n\toutput Y4\n);\n\tassign Y2 = y[1]|~w; // Changed & to |\n\tassign Y4 = (y[2]|y[3]|y[5]|y[6]) & w;\nendmodule\n", "module top_module (\n\tinput [6:1] y,\n\tinput w,\n\toutput Y2,\n\toutput Y4\n);\n\tassign Y2 = y[1]&~w;\n\tassign Y4 = (y[1]|y[2]|y[3]|y[5]|y[6]) & w; // Added y[1] in the equation\nendmodule\n", "module top_module (\n\tinput [6:1] y,\n\tinput w,\n\toutput Y2,\n\toutput Y4\n);\n\tassign Y2 = y[2]&~w; // Changed y[1] to y[2]\n\tassign Y4 = (y[2]|y[3]|y[5]|y[6]) & w;\nendmodule\n", "module top_module (\n\tinput [6:1] y,\n\tinput w,\n\toutput Y2,\n\toutput Y4\n);\n\tassign Y2 = y[1]&~w;\n\tassign Y4 = !(y[2]|y[3]|y[5]|y[6]) & w; // Added negation ! in front of the equation\nendmodule\n", "module top_module (\n\tinput [6:1] y,\n\tinput w,\n\toutput Y2,\n\toutput Y4\n);\n\tassign Y2 = (y[1]&y[6])&~w; // Added y[6] in conjunction with y[1]\n\tassign Y4 = (y[2]|y[3]|y[5]|y[6]) & w;\nendmodule\n", "module top_module (\n\tinput [6:1] y,\n\tinput w,\n\toutput Y2,\n\toutput Y4\n);\n\tassign Y2 = y[1]&~w;\n\tassign Y4 = (y[2]|y[3]|y[5]) & w; // Removed y[6] from the equation\nendmodule\n", "module top_module (\n\tinput [6:1] y,\n\tinput w,\n\toutput Y2,\n\toutput Y4\n);\n\tassign Y2 = ~y[1]&~w; // Added negation ~ in front of y[1]\n\tassign Y4 = (y[2]|y[3]|y[5]|y[6]) & w;\nendmodule\n"]}
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{"task_id": "mux256to1", "mutants": ["module top_module (\n\tinput [255:0] in,\n\tinput [7:0] sel,\n\toutput out\n);\n\n\tassign out = in[sel ^ 1'b1]; // Modification: XOR sel with 1 to slightly change selection logic\n\nendmodule\n", "module top_module (\n\tinput [255:0] in,\n\tinput [7:0] sel,\n\toutput out\n);\n\n\tassign out = in[sel] & 1'b1; // Modification: AND the output with 1 (logically same but adds an operation)\n\nendmodule\n", "module top_module (\n\tinput [255:0] in,\n\tinput [7:0] sel,\n\toutput out\n);\n\n\tassign out = in[sel | 1'b0]; // Modification: OR sel with 0 (no change in logic, but adds an operation)\n\nendmodule\n", "module top_module (\n\tinput [255:0] in,\n\tinput [7:0] sel,\n\toutput out\n);\n\n\tassign out = ~in[sel]; // Modification: Negate the selected output\n\nendmodule\n", "module top_module (\n\tinput [255:0] in,\n\tinput [7:0] sel,\n\toutput out\n);\n\n\tassign out = in[sel + 1'b1]; // Modification: Select the next bit instead of the current one\n\nendmodule\n", "module top_module (\n\tinput [255:0] in,\n\tinput [7:0] sel,\n\toutput out\n);\n\n\tassign out = in[sel - 1'b1]; // Modification: Select the previous bit instead of the current one\n\nendmodule\n", "module top_module (\n\tinput [255:0] in,\n\tinput [7:0] sel,\n\toutput out\n);\n\n\tassign out = in[255 - sel]; // Modification: Invert selection order\n\nendmodule\n", "module top_module (\n\tinput [255:0] in,\n\tinput [7:0] sel,\n\toutput out\n);\n\n\tassign out = in[sel] || 1'b0; // Modification: OR the output with 0 (no logical change, but adds an operation)\n\nendmodule\n", "module top_module (\n\tinput [255:0] in,\n\tinput [7:0] sel,\n\toutput out\n);\n\n\tassign out = (in[sel] == 1'b1) ? 1'b0 : 1'b1; // Modification: Output the opposite value of the selected input\n\nendmodule\n", "module top_module (\n\tinput [255:0] in,\n\tinput [7:0] sel,\n\toutput out\n);\n\n\tassign out = in[sel & 255]; // Modification: AND sel with 255 (no change in logic since sel is 8 bits)\n\nendmodule\n"]}
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{"task_id": "circuit4", "mutants": ["module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = c | b; // Minor change: no change (control example, not a valid mutant).\n\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = c & b; // Changed | to &\n\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = c | b | d; // Added d to the expression\n\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = ~c | b; // Complemented c\n\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = c | ~b; // Complemented b\n\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = (c | b) & d; // Added d with an AND operation\n\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = c | (b & a); // Added a with an AND operation to b\n\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = (c ^ b); // Changed | to ^ (XOR operation)\n\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = !(c | b); // Negated the entire expression\n\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = c & b & d; // Changed | to & and added d\n\nendmodule\n"]}
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{"task_id": "circuit5", "mutants": ["module top_module (\n\tinput [3:0] a, \n\tinput [3:0] b, \n\tinput [3:0] c, \n\tinput [3:0] d,\n\tinput [3:0] e,\n\toutput reg [3:0] q\n);\n\n\talways @(*) \n\t\tcase (c)\n\t\t\t0: q = b; // No change\n\t\t\t1: q = e; // No change\n\t\t\t2: q = a; // No change\n\t\t\t3: q = d; // No change\n\t\t\tdefault: q = 4'hf; // No change\n\t\tendcase\nendmodule\n// Note: No actual change made, serving as a control.\n", "module top_module (\n\tinput [3:0] a, \n\tinput [3:0] b, \n\tinput [3:0] c, \n\tinput [3:0] d,\n\tinput [3:0] e,\n\toutput reg [3:0] q\n);\n\n\talways @(*) \n\t\tcase (c)\n\t\t\t0: q = b;\n\t\t\t1: q = e;\n\t\t\t2: q = d; // Changed from q = a to q = d\n\t\t\t3: q = d;\n\t\t\tdefault: q = 4'hf;\n\t\tendcase\nendmodule\n", "module top_module (\n\tinput [3:0] a, \n\tinput [3:0] b, \n\tinput [3:0] c, \n\tinput [3:0] d,\n\tinput [3:0] e,\n\toutput reg [3:0] q\n);\n\n\talways @(*) \n\t\tcase (c)\n\t\t\t0: q = b;\n\t\t\t1: q = e;\n\t\t\t2: q = a;\n\t\t\t3: q = d;\n\t\t\tdefault: q = 4'he; // Changed default to 4'he\n\t\tendcase\nendmodule\n", "module top_module (\n\tinput [3:0] a, \n\tinput [3:0] b, \n\tinput [3:0] c, \n\tinput [3:0] d,\n\tinput [3:0] e,\n\toutput reg [3:0] q\n);\n\n\talways @(*) \n\t\tcase (c)\n\t\t\t0: q = a; // Changed from q = b to q = a\n\t\t\t1: q = e;\n\t\t\t2: q = a;\n\t\t\t3: q = d;\n\t\t\tdefault: q = 4'hf;\n\t\tendcase\nendmodule\n", "module top_module (\n\tinput [3:0] a, \n\tinput [3:0] b, \n\tinput [3:0] c, \n\tinput [3:0] d,\n\tinput [3:0] e,\n\toutput reg [3:0] q\n);\n\n\talways @(*) \n\t\tcase (c)\n\t\t\t0: q = b;\n\t\t\t1: q = d; // Changed from q = e to q = d\n\t\t\t2: q = a;\n\t\t\t3: q = d;\n\t\t\tdefault: q = 4'hf;\n\t\tendcase\nendmodule\n", "module top_module (\n\tinput [3:0] a, \n\tinput [3:0] b, \n\tinput [3:0] c, \n\tinput [3:0] d,\n\tinput [3:0] e,\n\toutput reg [3:0] q\n);\n\n\talways @(*) \n\t\tcase (c)\n\t\t\t0: q = b;\n\t\t\t1: q = e;\n\t\t\t2: q = a;\n\t\t\t3: q = a; // Changed from q = d to q = a\n\t\t\tdefault: q = 4'hf;\n\t\tendcase\nendmodule\n", "module top_module (\n\tinput [3:0] a, \n\tinput [3:0] b, \n\tinput [3:0] c, \n\tinput [3:0] d,\n\tinput [3:0] e,\n\toutput reg [3:0] q\n);\n\n\talways @(*) \n\t\tcase (c)\n\t\t\t0: q = e; // Changed from q = b to q = e\n\t\t\t1: q = e;\n\t\t\t2: q = a;\n\t\t\t3: q = d;\n\t\t\tdefault: q = 4'hf;\n\t\tendcase\nendmodule\n", "module top_module (\n\tinput [3:0] a, \n\tinput [3:0] b, \n\tinput [3:0] c, \n\tinput [3:0] d,\n\tinput [3:0] e,\n\toutput reg [3:0] q\n);\n\n\talways @(*) \n\t\tcase (c)\n\t\t\t0: q = b;\n\t\t\t1: q = e;\n\t\t\t2: q = e; // Changed from q = a to q = e\n\t\t\t3: q = d;\n\t\t\tdefault: q = 4'hf;\n\t\tendcase\nendmodule\n", "module top_module (\n\tinput [3:0] a, \n\tinput [3:0] b, \n\tinput [3:0] c, \n\tinput [3:0] d,\n\tinput [3:0] e,\n\toutput reg [3:0] q\n);\n\n\talways @(*) \n\t\tcase (c)\n\t\t\t0: q = b;\n\t\t\t1: q = a; // Changed from q = e to q = a\n\t\t\t2: q = a;\n\t\t\t3: q = d;\n\t\t\tdefault: q = 4'hf;\n\t\tendcase\nendmodule\n", "module top_module (\n\tinput [3:0] a, \n\tinput [3:0] b, \n\tinput [3:0] c, \n\tinput [3:0] d,\n\tinput [3:0] e,\n\toutput reg [3:0] q\n);\n\n\talways @(*) \n\t\tcase (c)\n\t\t\t0: q = b;\n\t\t\t1: q = e;\n\t\t\t2: q = a;\n\t\t\t3: q = e; // Changed from q = d to q = e\n\t\t\tdefault: q = 4'hf;\n\t\tendcase\nendmodule\n"]}
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{"task_id": "bugs_mux2", "mutants": ["module top_module (\n\tinput sel,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out\n);\n\n assign out = sel ? b : a; // Changed the ternary operator operands\nendmodule\n", "module top_module (\n\tinput sel,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out\n);\n\n assign out = sel ? a : b; // No change in logic; changed 'assign' to 'always @(sel or a or b)'\n always @(sel or a or b) begin\n out = sel ? a : b;\n end\nendmodule\n", "module top_module (\n\tinput sel,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out\n);\n\n assign out = sel ? a[7:0] : b[7:0]; // Explicitly specified bit range, though no functional change\nendmodule\n", "module top_module (\n\tinput sel,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out\n);\n\n assign out = sel ? a : b ^ 8'hFF; // Added bitwise NOT to b\nendmodule\n", "module top_module (\n\tinput sel,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out\n);\n\n assign out = sel ? a & 8'hFF : b; // Added bitwise AND with FF to a\nendmodule\n", "module top_module (\n\tinput sel,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out\n);\n\n assign out = (sel & sel) ? a : b; // Redundantly used 'sel & sel'\nendmodule\n", "module top_module (\n\tinput sel,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out\n);\n\n assign out = (~sel) ? a : b; // Used '~sel' instead of 'sel'\nendmodule\n", "module top_module (\n\tinput sel,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out\n);\n\n assign out = sel ? {a[3:0], a[7:4]} : b; // Swapped nibbles of 'a'\nendmodule\n", "module top_module (\n\tinput sel,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out\n);\n\n assign out = sel ? a : {b[3:0], b[7:4]}; // Swapped nibbles of 'b'\nendmodule\n", "module top_module (\n\tinput sel,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out\n);\n\n assign out = sel ? {a[6:0], a[7]} : b; // Circular shift left by 1 on 'a'\nendmodule\n"]}
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{"task_id": "ece241_2014_q1c", "mutants": ["module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput [7:0] s,\n\toutput overflow\n);\n\t\n\twire [8:0] sum = a+b; // No change\n\tassign s = sum[8:1]; // Changed from sum[7:0] to sum[8:1]\n\tassign overflow = !(a[7]^b[7]) && (a[7] != s[7]);\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput [7:0] s,\n\toutput overflow\n);\n\t\n\twire [8:0] sum = a+b; // No change\n\tassign s = sum[7:0]; // No change\n\tassign overflow = (a[7]^b[7]) && (a[7] != s[7]); // Changed ! to remove negation\nendmodule\n", "module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput [7:0] s,\n\toutput overflow\n);\n\t\n\twire [8:0] sum = a-b; // Changed from a+b to a-b\n\tassign s = sum[7:0];\n\tassign overflow = !(a[7]^b[7]) && (a[7] != s[7]);\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput [7:0] s,\n\toutput overflow\n);\n\t\n\twire [8:0] sum = a+b; // No change\n\tassign s = sum[7:0]; // No change\n\tassign overflow = !(a[7]^b[7]) && (a[7] == s[7]); // Changed != to ==\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput [7:0] s,\n\toutput overflow\n);\n\t\n\twire [9:0] sum = a+b; // Changed wire [8:0] to wire [9:0]\n\tassign s = sum[7:0];\n\tassign overflow = !(a[7]^b[7]) && (a[7] != s[7]);\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput [7:0] s,\n\toutput overflow\n);\n\t\n\twire [8:0] sum = {1'b0, a} + {1'b0, b}; // Added 0 extension to operands\n\tassign s = sum[7:0];\n\tassign overflow = !(a[7]^b[7]) && (a[7] != s[7]);\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput [7:0] s,\n\toutput overflow\n);\n\t\n\twire [8:0] sum = a+b; // No change\n\tassign s = {sum[6:0], 1'b0}; // Changed output to shift right with LSB as 0\n\tassign overflow = !(a[7]^b[7]) && (a[7] != s[7]);\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput [7:0] s,\n\toutput overflow\n);\n\t\n\twire [8:0] sum = a&b; // Changed operator to &\n\tassign s = sum[7:0];\n\tassign overflow = !(a[7]^b[7]) && (a[7] != s[7]);\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput [7:0] s,\n\toutput overflow\n);\n\t\n\twire [8:0] sum = a|b; // Changed operator to |\n\tassign s = sum[7:0];\n\tassign overflow = !(a[7]^b[7]) && (a[7] != s[7]);\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput [7:0] s,\n\toutput overflow\n);\n\t\n\twire [8:0] sum = a+b; // No change\n\tassign s = ~sum[7:0]; // Inverted the sum bits\n\tassign overflow = !(a[7]^b[7]) && (a[7] != s[7]);\n\t\nendmodule\n"]}
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{"task_id": "review2015_fsmonehot", "mutants": ["module top_module(\n input d,\n input done_counting,\n input ack,\n input [9:0] state, // 10-bit one-hot current state\n output B3_next,\n output S_next,\n output S1_next,\n output Count_next,\n output Wait_next,\n output done,\n output counting,\n output shift_ena\n );\n \n\tparameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;\n\n\tassign B3_next = state[B1]; // Mutation: Changed from state[B2] to state[B1]\n\tassign S_next = state[S]&~d | state[S1]&~d | state[S110]&~d | state[Wait]&ack;\n\tassign S1_next = state[S]&d;\n\tassign Count_next = state[B3] | state[Count]&~done_counting;\n\tassign Wait_next = state[Count]&done_counting | state[Wait]&~ack;\n\n\tassign done = state[Wait];\n\tassign counting = state[Count];\n\tassign shift_ena = |state[B3:B0];\n\t\nendmodule\n", "module top_module(\n input d,\n input done_counting,\n input ack,\n input [9:0] state, // 10-bit one-hot current state\n output B3_next,\n output S_next,\n output S1_next,\n output Count_next,\n output Wait_next,\n output done,\n output counting,\n output shift_ena\n );\n \n\tparameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;\n\n\tassign B3_next = state[B2];\n\tassign S_next = state[S]&~d | state[S1]&~d | state[S110]&~d | state[Wait]&~ack; // Mutation: Changed ack to ~ack\n\tassign S1_next = state[S]&d;\n\tassign Count_next = state[B3] | state[Count]&~done_counting;\n\tassign Wait_next = state[Count]&done_counting | state[Wait]&~ack;\n\n\tassign done = state[Wait];\n\tassign counting = state[Count];\n\tassign shift_ena = |state[B3:B0];\n\t\nendmodule\n", "module top_module(\n input d,\n input done_counting,\n input ack,\n input [9:0] state, // 10-bit one-hot current state\n output B3_next,\n output S_next,\n output S1_next,\n output Count_next,\n output Wait_next,\n output done,\n output counting,\n output shift_ena\n );\n \n\tparameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;\n\n\tassign B3_next = state[B2];\n\tassign S_next = state[S]&~d | state[S1]&~d | state[S110]&~d | state[Wait]&ack;\n\tassign S1_next = state[S]&~d; // Mutation: Changed d to ~d\n\tassign Count_next = state[B3] | state[Count]&~done_counting;\n\tassign Wait_next = state[Count]&done_counting | state[Wait]&~ack;\n\n\tassign done = state[Wait];\n\tassign counting = state[Count];\n\tassign shift_ena = |state[B3:B0];\n\t\nendmodule\n", "module top_module(\n input d,\n input done_counting,\n input ack,\n input [9:0] state, // 10-bit one-hot current state\n output B3_next,\n output S_next,\n output S1_next,\n output Count_next,\n output Wait_next,\n output done,\n output counting,\n output shift_ena\n );\n \n\tparameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;\n\n\tassign B3_next = state[B2];\n\tassign S_next = state[S]&~d | state[S1]&~d | state[S110]&~d | state[Wait]&ack;\n\tassign S1_next = state[S]&d;\n\tassign Count_next = state[B3] | state[Count]&done_counting; // Mutation: Changed ~done_counting to done_counting\n\tassign Wait_next = state[Count]&done_counting | state[Wait]&~ack;\n\n\tassign done = state[Wait];\n\tassign counting = state[Count];\n\tassign shift_ena = |state[B3:B0];\n\t\nendmodule\n", "module top_module(\n input d,\n input done_counting,\n input ack,\n input [9:0] state, // 10-bit one-hot current state\n output B3_next,\n output S_next,\n output S1_next,\n output Count_next,\n output Wait_next,\n output done,\n output counting,\n output shift_ena\n );\n \n\tparameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;\n\n\tassign B3_next = state[B2];\n\tassign S_next = state[S]&~d | state[S1]&~d | state[S110]&~d | state[Wait]&ack;\n\tassign S1_next = state[S]&d;\n\tassign Count_next = state[B3] | state[Count]&~done_counting;\n\tassign Wait_next = state[Count]&done_counting | state[Wait]&ack; // Mutation: Changed ~ack to ack\n\n\tassign done = state[Wait];\n\tassign counting = state[Count];\n\tassign shift_ena = |state[B3:B0];\n\t\nendmodule\n", "module top_module(\n input d,\n input done_counting,\n input ack,\n input [9:0] state, // 10-bit one-hot current state\n output B3_next,\n output S_next,\n output S1_next,\n output Count_next,\n output Wait_next,\n output done,\n output counting,\n output shift_ena\n );\n \n\tparameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;\n\n\tassign B3_next = state[B2];\n\tassign S_next = state[S]&d | state[S1]&~d | state[S110]&~d | state[Wait]&ack; // Mutation: Changed state[S]&~d to state[S]&d\n\tassign S1_next = state[S]&d;\n\tassign Count_next = state[B3] | state[Count]&~done_counting;\n\tassign Wait_next = state[Count]&done_counting | state[Wait]&~ack;\n\n\tassign done = state[Wait];\n\tassign counting = state[Count];\n\tassign shift_ena = |state[B3:B0];\n\t\nendmodule\n", "module top_module(\n input d,\n input done_counting,\n input ack,\n input [9:0] state, // 10-bit one-hot current state\n output B3_next,\n output S_next,\n output S1_next,\n output Count_next,\n output Wait_next,\n output done,\n output counting,\n output shift_ena\n );\n \n\tparameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;\n\n\tassign B3_next = state[B2];\n\tassign S_next = state[S]&~d | state[S1]&~d | state[S110]&d | state[Wait]&ack; // Mutation: Changed state[S110]&~d to state[S110]&d\n\tassign S1_next = state[S]&d;\n\tassign Count_next = state[B3] | state[Count]&~done_counting;\n\tassign Wait_next = state[Count]&done_counting | state[Wait]&~ack;\n\n\tassign done = state[Wait];\n\tassign counting = state[Count];\n\tassign shift_ena = |state[B3:B0];\n\t\nendmodule\n", "module top_module(\n input d,\n input done_counting,\n input ack,\n input [9:0] state, // 10-bit one-hot current state\n output B3_next,\n output S_next,\n output S1_next,\n output Count_next,\n output Wait_next,\n output done,\n output counting,\n output shift_ena\n );\n \n\tparameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;\n\n\tassign B3_next = state[B2];\n\tassign S_next = state[S]&~d | state[S1]&~d | state[S110]&~d | state[Wait]&ack;\n\tassign S1_next = state[S]&d;\n\tassign Count_next = state[B3] | state[Count]&~done_counting;\n\tassign Wait_next = state[Count]&~done_counting | state[Wait]&~ack; // Mutation: Changed done_counting to ~done_counting in Wait_next\n\n\tassign done = state[Wait];\n\tassign counting = state[Count];\n\tassign shift_ena = |state[B3:B0];\n\t\nendmodule\n", "module top_module(\n input d,\n input done_counting,\n input ack,\n input [9:0] state, // 10-bit one-hot current state\n output B3_next,\n output S_next,\n output S1_next,\n output Count_next,\n output Wait_next,\n output done,\n output counting,\n output shift_ena\n );\n \n\tparameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;\n\n\tassign B3_next = state[B2];\n\tassign S_next = state[S]&~d | state[S1]&d | state[S110]&~d | state[Wait]&ack; // Mutation: Changed state[S1]&~d to state[S1]&d\n\tassign S1_next = state[S]&d;\n\tassign Count_next = state[B3] | state[Count]&~done_counting;\n\tassign Wait_next = state[Count]&done_counting | state[Wait]&~ack;\n\n\tassign done = state[Wait];\n\tassign counting = state[Count];\n\tassign shift_ena = |state[B3:B0];\n\t\nendmodule\n", "module top_module(\n input d,\n input done_counting,\n input ack,\n input [9:0] state, // 10-bit one-hot current state\n output B3_next,\n output S_next,\n output S1_next,\n output Count_next,\n output Wait_next,\n output done,\n output counting,\n output shift_ena\n );\n \n\tparameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;\n\n\tassign B3_next = state[B2];\n\tassign S_next = state[S]&~d | state[S1]&~d | state[S110]&~d | state[Wait]&ack;\n\tassign S1_next = state[S]&d;\n\tassign Count_next = state[B3] | state[Count]&done_counting; // Mutation: Changed ~done_counting to done_counting, same as mutant 4 but in a different position\n\tassign Wait_next = state[Count]&done_counting | state[Wait]&~ack;\n\n\tassign done = state[Wait];\n\tassign counting = state[Count];\n\tassign shift_ena = |state[B3:B0];\n\t\nendmodule\n"]}
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{"task_id": "always_casez", "mutants": ["module top_module (\n\tinput [7:0] in,\n\toutput reg [2:0] pos\n);\n\n\talways @(*) begin\n\t\tcasez (in)\n\t\t\tdefault : pos = 2'h0; // No change\n\t\t\t8'bzzzzzzz1: pos = 3'h0; // No change\n\t\t\t8'bzzzzzz1z: pos = 3'h1; // No change\n\t\t\t8'bzzzzz1zz: pos = 3'h2; // No change\n\t\t\t8'bzzzz1zzz: pos = 3'h3; // No change\n\t\t\t8'bzzz1zzzz: pos = 3'h4; // No change\n\t\t\t8'bzz1zzzzz: pos = 3'h5; // No change\n\t\t\t8'bz1zzzzzz: pos = 3'h6; // No change\n\t\t\t8'b1zzzzzzz: pos = 3'h6; // Changed pos = 3'h7 to pos = 3'h6\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput reg [2:0] pos\n);\n\n\talways @(*) begin\n\t\tcasez (in)\n\t\t\tdefault : pos = 2'h1; // Changed default case to pos = 2'h1\n\t\t\t8'bzzzzzzz1: pos = 3'h0; // No change\n\t\t\t8'bzzzzzz1z: pos = 3'h1; // No change\n\t\t\t8'bzzzzz1zz: pos = 3'h2; // No change\n\t\t\t8'bzzzz1zzz: pos = 3'h3; // No change\n\t\t\t8'bzzz1zzzz: pos = 3'h4; // No change\n\t\t\t8'bzz1zzzzz: pos = 3'h5; // No change\n\t\t\t8'bz1zzzzzz: pos = 3'h6; // No change\n\t\t\t8'b1zzzzzzz: pos = 3'h7; // No change\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput reg [2:0] pos\n);\n\n\talways @(*) begin\n\t\tcasez (in)\n\t\t\tdefault : pos = 2'h0; // No change\n\t\t\t8'bzzzzzzz1: pos = 3'h0; // No change\n\t\t\t8'bzzzzzz1z: pos = 3'h1; // No change\n\t\t\t8'bzzzzz1zz: pos = 3'h1; // Changed pos = 3'h2 to pos = 3'h1\n\t\t\t8'bzzzz1zzz: pos = 3'h3; // No change\n\t\t\t8'bzzz1zzzz: pos = 3'h4; // No change\n\t\t\t8'bzz1zzzzz: pos = 3'h5; // No change\n\t\t\t8'bz1zzzzzz: pos = 3'h6; // No change\n\t\t\t8'b1zzzzzzz: pos = 3'h7; // No change\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput reg [2:0] pos\n);\n\n\talways @(*) begin\n\t\tcasez (in)\n\t\t\tdefault : pos = 2'h0; // No change\n\t\t\t8'bzzzzzzz1: pos = 3'h0; // No change\n\t\t\t8'bzzzzzz1z: pos = 3'h1; // No change\n\t\t\t8'bzzzzz1zz: pos = 3'h2; // No change\n\t\t\t8'bzzzz1zzz: pos = 3'h2; // Changed pos = 3'h3 to pos = 3'h2\n\t\t\t8'bzzz1zzzz: pos = 3'h4; // No change\n\t\t\t8'bzz1zzzzz: pos = 3'h5; // No change\n\t\t\t8'bz1zzzzzz: pos = 3'h6; // No change\n\t\t\t8'b1zzzzzzz: pos = 3'h7; // No change\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput reg [2:0] pos\n);\n\n\talways @(*) begin\n\t\tcasez (in)\n\t\t\tdefault : pos = 2'h0; // No change\n\t\t\t8'bzzzzzzz1: pos = 3'h1; // Changed pos = 3'h0 to pos = 3'h1\n\t\t\t8'bzzzzzz1z: pos = 3'h1; // No change\n\t\t\t8'bzzzzz1zz: pos = 3'h2; // No change\n\t\t\t8'bzzzz1zzz: pos = 3'h3; // No change\n\t\t\t8'bzzz1zzzz: pos = 3'h4; // No change\n\t\t\t8'bzz1zzzzz: pos = 3'h5; // No change\n\t\t\t8'bz1zzzzzz: pos = 3'h6; // No change\n\t\t\t8'b1zzzzzzz: pos = 3'h7; // No change\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput reg [2:0] pos\n);\n\n\talways @(*) begin\n\t\tcasez (in)\n\t\t\tdefault : pos = 2'h0; // No change\n\t\t\t8'bzzzzzzz1: pos = 3'h0; // No change\n\t\t\t8'bzzzzzz1z: pos = 3'h0; // Changed pos = 3'h1 to pos = 3'h0\n\t\t\t8'bzzzzz1zz: pos = 3'h2; // No change\n\t\t\t8'bzzzz1zzz: pos = 3'h3; // No change\n\t\t\t8'bzzz1zzzz: pos = 3'h4; // No change\n\t\t\t8'bzz1zzzzz: pos = 3'h5; // No change\n\t\t\t8'bz1zzzzzz: pos = 3'h6; // No change\n\t\t\t8'b1zzzzzzz: pos = 3'h7; // No change\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput reg [2:0] pos\n);\n\n\talways @(*) begin\n\t\tcasez (in)\n\t\t\tdefault : pos = 2'h0; // No change\n\t\t\t8'bzzzzzzz1: pos = 3'h0; // No change\n\t\t\t8'bzzzzzz1z: pos = 3'h1; // No change\n\t\t\t8'bzzzzz1zz: pos = 3'h2; // No change\n\t\t\t8'bzzzz1zzz: pos = 3'h3; // No change\n\t\t\t8'bzzz1zzzz: pos = 3'h5; // Changed pos = 3'h4 to pos = 3'h5\n\t\t\t8'bzz1zzzzz: pos = 3'h5; // No change\n\t\t\t8'bz1zzzzzz: pos = 3'h6; // No change\n\t\t\t8'b1zzzzzzz: pos = 3'h7; // No change\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput reg [2:0] pos\n);\n\n\talways @(*) begin\n\t\tcasez (in)\n\t\t\tdefault : pos = 2'h0; // No change\n\t\t\t8'bzzzzzzz1: pos = 3'h0; // No change\n\t\t\t8'bzzzzzz1z: pos = 3'h1; // No change\n\t\t\t8'bzzzzz1zz: pos = 3'h2; // No change\n\t\t\t8'bzzzz1zzz: pos = 3'h3; // No change\n\t\t\t8'bzzz1zzzz: pos = 3'h4; // No change\n\t\t\t8'bzz1zzzzz: pos = 3'h4; // Changed pos = 3'h5 to pos = 3'h4\n\t\t\t8'bz1zzzzzz: pos = 3'h6; // No change\n\t\t\t8'b1zzzzzzz: pos = 3'h7; // No change\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput reg [2:0] pos\n);\n\n\talways @(*) begin\n\t\tcasez (in)\n\t\t\tdefault : pos = 2'h0; // No change\n\t\t\t8'bzzzzzzz1: pos = 3'h0; // No change\n\t\t\t8'bzzzzzz1z: pos = 3'h1; // No change\n\t\t\t8'bzzzzz1zz: pos = 3'h2; // No change\n\t\t\t8'bzzzz1zzz: pos = 3'h3; // No change\n\t\t\t8'bzzz1zzzz: pos = 3'h4; // No change\n\t\t\t8'bzz1zzzzz: pos = 3'h5; // No change\n\t\t\t8'bz1zzzzzz: pos = 3'h7; // Changed pos = 3'h6 to pos = 3'h7\n\t\t\t8'b1zzzzzzz: pos = 3'h7; // No change\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput reg [2:0] pos\n);\n\n\talways @(*) begin\n\t\tcasez (in)\n\t\t\tdefault : pos = 3'h7; // Changed default to pos = 3'h7\n\t\t\t8'bzzzzzzz1: pos = 3'h0; // No change\n\t\t\t8'bzzzzzz1z: pos = 3'h1; // No change\n\t\t\t8'bzzzzz1zz: pos = 3'h2; // No change\n\t\t\t8'bzzzz1zzz: pos = 3'h3; // No change\n\t\t\t8'bzzz1zzzz: pos = 3'h4; // No change\n\t\t\t8'bzz1zzzzz: pos = 3'h5; // No change\n\t\t\t8'bz1zzzzzz: pos = 3'h6; // No change\n\t\t\t8'b1zzzzzzz: pos = 3'h7; // No change\n\t\tendcase\n\tend\n\t\nendmodule\n"]}
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{"task_id": "wire_decl", "mutants": ["module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out,\n\toutput out_n );\n\n\twire w1, w2;\n\tassign w1 = a&b;\n\tassign w2 = c&d;\n\tassign out = w1|w2;\n\tassign out_n = ~out; // Change: No change, serves as a baseline for comparison.\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out,\n\toutput out_n );\n\n\twire w1, w2;\n\tassign w1 = a|b; // Changed & to | in this line for wire w1.\n\tassign w2 = c&d;\n\tassign out = w1|w2;\n\tassign out_n = ~out;\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out,\n\toutput out_n );\n\n\twire w1, w2;\n\tassign w1 = a&b;\n\tassign w2 = c|d; // Changed & to | in this line for wire w2.\n\tassign out = w1|w2;\n\tassign out_n = ~out;\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out,\n\toutput out_n );\n\n\twire w1, w2;\n\tassign w1 = a&b;\n\tassign w2 = c&d;\n\tassign out = w1&w2; // Changed | to & in this line for output out.\n\tassign out_n = ~out;\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out,\n\toutput out_n );\n\n\twire w1, w2;\n\tassign w1 = a&b;\n\tassign w2 = c&d;\n\tassign out = w1|w2;\n\tassign out_n = out; // Changed ~out to out, inverting the functionality for out_n.\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out,\n\toutput out_n );\n\n\twire w1, w2;\n\tassign w1 = ~(a&b); // Added NOT operation to w1.\n\tassign w2 = c&d;\n\tassign out = w1|w2;\n\tassign out_n = ~out;\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out,\n\toutput out_n );\n\n\twire w1, w2;\n\tassign w1 = a&b;\n\tassign w2 = ~(c&d); // Added NOT operation to w2.\n\tassign out = w1|w2;\n\tassign out_n = ~out;\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out,\n\toutput out_n );\n\n\twire w1, w2;\n\tassign w1 = a^b; // Changed & to ^ (XOR) for wire w1.\n\tassign w2 = c&d;\n\tassign out = w1|w2;\n\tassign out_n = ~out;\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out,\n\toutput out_n );\n\n\twire w1, w2;\n\tassign w1 = a&b;\n\tassign w2 = c^d; // Changed & to ^ (XOR) for wire w2.\n\tassign out = w1|w2;\n\tassign out_n = ~out;\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out,\n\toutput out_n );\n\n\twire w1, w2;\n\tassign w1 = a&!b; // Added NOT operation to b for wire w1.\n\tassign w2 = c&d;\n\tassign out = w1|w2;\n\tassign out_n = ~out;\n\t\nendmodule\n"]}
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{"task_id": "thermostat", "mutants": ["module top_module(\n\tinput mode,\n\tinput too_cold, \n\tinput too_hot,\n\tinput fan_on,\n\toutput heater,\n\toutput aircon,\n\toutput fan\n);\n\t\n\tassign fan = (mode ? too_cold : too_hot) | fan_on; // No change\n\tassign heater = (mode & too_cold); // No change\n\tassign aircon = (~mode & too_hot); // No change\n\tassign heater = (~mode & too_cold); // Change: added incorrect heater control logic for cooling mode\nendmodule\n", "module top_module(\n input mode,\n input too_cold,\n input too_hot,\n input fan_on,\n output heater,\n output aircon,\n output fan\n);\n\n assign fan = (mode ? too_cold : too_hot); // Change: Removed | fan_on, so fan control doesn't include manual fan on\n assign heater = (mode & too_cold);\n assign aircon = (~mode & too_hot);\nendmodule\n", "module top_module(\n input mode,\n input too_cold,\n input too_hot,\n input fan_on,\n output heater,\n output aircon,\n output fan\n);\n\n assign fan = (mode ? too_cold : too_hot) | fan_on; \n assign heater = (mode | too_cold); // Change: Used OR instead of AND for heater control logic\n assign aircon = (~mode & too_hot);\nendmodule\n", "module top_module(\n input mode,\n input too_cold,\n input too_hot,\n input fan_on,\n output heater,\n output aircon,\n output fan\n);\n\n assign fan = fan_on; // Change: Only fan_on controls the fan, ignoring heating or cooling\n assign heater = (mode & too_cold);\n assign aircon = (~mode & too_hot);\nendmodule\n", "module top_module(\n input mode,\n input too_cold,\n input too_hot,\n input fan_on,\n output heater,\n output aircon,\n output fan\n);\n\n assign fan = (mode ? too_cold : too_hot) | fan_on;\n assign heater = (mode & too_cold);\n assign aircon = (~mode | too_hot); // Change: Used OR instead of AND for aircon control logic\nendmodule\n", "module top_module(\n input mode,\n input too_cold,\n input too_hot,\n input fan_on,\n output heater,\n output aircon,\n output fan\n);\n\n assign fan = (mode ? too_hot : too_cold) | fan_on; // Change: Swapped conditions for too_hot and too_cold\n assign heater = (mode & too_cold);\n assign aircon = (~mode & too_hot);\nendmodule\n", "module top_module(\n input mode,\n input too_cold,\n input too_hot,\n input fan_on,\n output heater,\n output aircon,\n output fan\n);\n\n assign fan = (mode & too_cold) | (mode & too_hot) | fan_on; // Change: Added too_hot to fan condition erroneously\n assign heater = (mode & too_cold);\n assign aircon = (~mode & too_hot);\nendmodule\n", "module top_module(\n input mode,\n input too_cold,\n input too_hot,\n input fan_on,\n output heater,\n output aircon,\n output fan\n);\n\n assign fan = (mode ? too_cold : too_hot) & fan_on; // Change: Used AND instead of OR with fan_on\n assign heater = (mode & too_cold);\n assign aircon = (~mode & too_hot);\nendmodule\n", "module top_module(\n input mode,\n input too_cold,\n input too_hot,\n input fan_on,\n output heater,\n output aircon,\n output fan\n);\n\n assign fan = (mode ? too_cold : too_hot) | fan_on;\n // Change: Added redundant condition for heater and aircon, simulating a bug\n assign heater = (mode & too_cold) | (mode & too_hot);\n assign aircon = (~mode & too_hot) | (~mode & too_cold);\nendmodule\n", "module top_module(\n input mode,\n input too_cold,\n input too_hot,\n input fan_on,\n output heater,\n output aircon,\n output fan\n);\n\n assign fan = (mode ? too_cold : too_hot) | fan_on;\n assign heater = mode; // Change: Incorrectly assigns mode directly to heater, ignoring too_cold\n assign aircon = ~mode; // Change: Incorrectly assigns inverted mode directly to aircon, ignoring too_hot\nendmodule\n"]}
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{"task_id": "ece241_2013_q2", "mutants": ["module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out_sop,\n\toutput out_pos\n);\n\t\n\twire pos0, pos1;\n\tassign out_sop = c&d | ~a&~b&c; // No change\n\tassign pos0 = c & (~b|d)&(~a|b); // No change\n\tassign pos1 = c & (~b|d)&(~a|d); // No change\n\t\n\t// Change: Changed the unknown condition to 0 instead of x\n\tassign out_pos = (pos0 == pos1) ? pos0 : 1'b0; \nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out_sop,\n\toutput out_pos\n);\n\t\n\twire pos0, pos1;\n\t// Change: Altered the expression slightly to include b in the SOP\n\tassign out_sop = c&d | ~a&~b&c | b&c; \n\tassign pos0 = c & (~b|d)&(~a|b); // No change\n\tassign pos1 = c & (~b|d)&(~a|d); // No change\n\t\n\tassign out_pos = (pos0 == pos1) ? pos0 : 1'bx;\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out_sop,\n\toutput out_pos\n);\n\t\n\twire pos0, pos1;\n\tassign out_sop = c&d | ~a&~b&c; // No change\n\t// Change: Removed the condition involving d in pos0\n\tassign pos0 = c & (~b)&(~a|b); \n\tassign pos1 = c & (~b|d)&(~a|d); // No change\n\t\n\tassign out_pos = (pos0 == pos1) ? pos0 : 1'bx;\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out_sop,\n\toutput out_pos\n);\n\t\n\twire pos0, pos1;\n\tassign out_sop = c&d | ~a&~b&c; // No change\n\tassign pos0 = c & (~b|d)&(~a|b); // No change\n\t// Change: Removed the condition involving b in pos1\n\tassign pos1 = c & (~b|d)&(~a); \n\t\n\tassign out_pos = (pos0 == pos1) ? pos0 : 1'bx;\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out_sop,\n\toutput out_pos\n);\n\t\n\twire pos0, pos1;\n\t// Change: Simplified the SOP expression\n\tassign out_sop = c; \n\tassign pos0 = c & (~b|d)&(~a|b); // No change\n\tassign pos1 = c & (~b|d)&(~a|d); // No change\n\t\n\tassign out_pos = (pos0 == pos1) ? pos0 : 1'bx;\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out_sop,\n\toutput out_pos\n);\n\t\n\twire pos0, pos1;\n\tassign out_sop = c&d | ~a&~b&c; // No change\n\t// Change: Inverted the condition for pos0\n\tassign pos0 = c & (b|~d)&(a|~b); \n\tassign pos1 = c & (~b|d)&(~a|d); // No change\n\t\n\tassign out_pos = (pos0 == pos1) ? pos0 : 1'bx;\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out_sop,\n\toutput out_pos\n);\n\t\n\twire pos0, pos1;\n\t// Change: Added d in the SOP condition\n\tassign out_sop = c&d | ~a&~b&c&d; \n\tassign pos0 = c & (~b|d)&(~a|b); // No change\n\tassign pos1 = c & (~b|d)&(~a|d); // No change\n\t\n\tassign out_pos = (pos0 == pos1) ? pos0 : 1'bx;\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out_sop,\n\toutput out_pos\n);\n\t\n\twire pos0, pos1;\n\tassign out_sop = c&d | ~a&~b&c; // No change\n\t// Change: Switched the conditions involving a and b in pos0\n\tassign pos0 = c & (~a|d)&(~b|b); \n\tassign pos1 = c & (~b|d)&(~a|d); // No change\n\t\n\tassign out_pos = (pos0 == pos1) ? pos0 : 1'bx;\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out_sop,\n\toutput out_pos\n);\n\t\n\twire pos0, pos1;\n\tassign out_sop = c&d | ~a&~b&c; // No change\n\t// Change: Added an extra condition to pos1 to make it false\n\tassign pos0 = c & (~b|d)&(~a|b); // No change\n\tassign pos1 = c & (~b|d)&(~a|d)&~c; \n\t\n\tassign out_pos = (pos0 == pos1) ? pos0 : 1'bx;\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out_sop,\n\toutput out_pos\n);\n\t\n\twire pos0, pos1;\n\t// Change: Altered SOP to not include c&d\n\tassign out_sop = ~a&~b&c; \n\tassign pos0 = c & (~b|d)&(~a|b); // No change\n\tassign pos1 = c & (~b|d)&(~a|d); // No change\n\t\n\tassign out_pos = (pos0 == pos1) ? pos0 : 1'bx;\nendmodule\n"]}
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{"task_id": "circuit3", "mutants": ["module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = (a&b) & (c|d); // Changed | to & for (a|b)\n\t\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = (a|b) & (c&d); // Changed | to & for (c|d)\n\t\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = (a|b) | (c|d); // Changed & to | between (a|b) and (c|d)\n\t\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = (a^b) & (c|d); // Changed | to ^ for (a|b)\n\t\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = !(a|b) & (c|d); // Added ! to (a|b)\n\t\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = (a|b) & !(c|d); // Added ! to (c|d)\n\t\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = (a & b) | (c|d); // Changed | to & for (a|b) and then & to | between (a&b) and (c|d)\n\t\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = (a|!b) & (c|d); // Added ! to b in (a|b)\n\t\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = (a|b) & (c|!d); // Added ! to d in (c|d)\n\t\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = ((a|b) & (c|d)) | a; // Added \"| a\" at the end\n\t\nendmodule\n"]}
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{"task_id": "7420", "mutants": ["module top_module(\n input p1a, \n input p1b, \n input p1c, \n input p1d, \n output p1y, \n input p2a, \n input p2b, \n input p2c, \n input p2d, \n output p2y\n);\n\n assign p1y = ~|( {p1a, p1b, p1c, p1d} ); // Changed & to | for p1y\n assign p2y = ~&( {p2a, p2b, p2c, p2d} );\n\nendmodule\n", "module top_module(\n input p1a, \n input p1b, \n input p1c, \n input p1d, \n output p1y, \n input p2a, \n input p2b, \n input p2c, \n input p2d, \n output p2y\n);\n\n assign p1y = ~&( {p1a, p1b, p1c, p1d} );\n assign p2y = ~|( {p2a, p2b, p2c, p2d} ); // Changed & to | for p2y\n\nendmodule\n", "module top_module(\n input p1a, \n input p1b, \n input p1c, \n input p1d, \n output p1y, \n input p2a, \n input p2b, \n input p2c, \n input p2d, \n output p2y\n);\n\n assign p1y = ~&( {p1a, p1b, p1c, ~p1d} ); // Inverted p1d\n assign p2y = ~&( {p2a, p2b, p2c, p2d} );\n\nendmodule\n", "module top_module(\n input p1a, \n input p1b, \n input p1c, \n input p1d, \n output p1y, \n input p2a, \n input p2b, \n input p2c, \n input p2d, \n output p2y\n);\n\n assign p1y = ~&( {p1a, p1b, p1c, p1d} );\n assign p2y = ~&( {p2a, p2b, p2c, ~p2d} ); // Inverted p2d\n\nendmodule\n", "module top_module(\n input p1a, \n input p1b, \n input p1c, \n input p1d, \n output p1y, \n input p2a, \n input p2b, \n input p2c, \n input p2d, \n output p2y\n);\n\n assign p1y = ~&( {p1a, p1c, p1b, p1d} ); // Swapped p1b and p1c\n assign p2y = ~&( {p2a, p2b, p2c, p2d} );\n\nendmodule\n", "module top_module(\n input p1a, \n input p1b, \n input p1c, \n input p1d, \n output p1y, \n input p2a, \n input p2b, \n input p2c, \n input p2d, \n output p2y\n);\n\n assign p1y = ~&( {p1a, p1b, p1c, p1d} );\n assign p2y = ~&( {p2a, p2c, p2b, p2d} ); // Swapped p2b and p2c\n\nendmodule\n", "module top_module(\n input p1a, \n input p1b, \n input p1c, \n input p1d, \n output p1y, \n input p2a, \n input p2b, \n input p2c, \n input p2d, \n output p2y\n);\n\n assign p1y = ~&( {p1a, p1b, p1c} ); // Removed p1d from the grouping\n assign p2y = ~&( {p2a, p2b, p2c, p2d} );\n\nendmodule\n", "module top_module(\n input p1a, \n input p1b, \n input p1c, \n input p1d, \n output p1y, \n input p2a, \n input p2b, \n input p2c, \n input p2d, \n output p2y\n);\n\n assign p1y = ~&( {p1a, p1b, p1c, p1d} );\n assign p2y = ~&( {p2a, p2b, p2c} ); // Removed p2d from the grouping\n\nendmodule\n", "module top_module(\n input p1a, \n input p1b, \n input p1c, \n input p1d, \n output p1y, \n input p2a, \n input p2b, \n input p2c, \n input p2d, \n output p2y\n);\n\n assign p1y = ~&( {p1d, p1a, p1b, p1c} ); // Rotated left the inputs for p1y\n assign p2y = ~&( {p2a, p2b, p2c, p2d} );\n\nendmodule\n", "module top_module(\n input p1a, \n input p1b, \n input p1c, \n input p1d, \n output p1y, \n input p2a, \n input p2b, \n input p2c, \n input p2d, \n output p2y\n);\n\n assign p1y = ~&( {p1a, p1b, p1c, p1d} );\n assign p2y = ~&( {p2d, p2a, p2b, p2c} ); // Rotated left the inputs for p2y\n\nendmodule\n"]}
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{"task_id": "popcount255", "mutants": ["module top_module (\n\tinput [254:0] in,\n\toutput reg [7:0] out\n);\n\n\talways_comb begin\n\t\tout = 0;\n\t\tfor (int i=0;i<254;i++) // Changed loop condition i<255 to i<254, reducing loop count by 1\n\t\t\tout = out + in[i];\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [254:0] in,\n\toutput reg [7:0] out\n);\n\n\talways_comb begin\n\t\tout = 1; // Changed initial value of out from 0 to 1\n\t\tfor (int i=0;i<255;i++)\n\t\t\tout = out + in[i];\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [254:0] in,\n\toutput reg [7:0] out\n);\n\n\talways_comb begin\n\t\tout = 0;\n\t\tfor (int i=0;i<255;i+=2) // Changed increment of i from i++ to i+=2, skipping every other bit\n\t\t\tout = out + in[i];\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [254:0] in,\n\toutput reg [7:0] out\n);\n\n\talways_comb begin\n\t\tout = 0;\n\t\tfor (int i=1;i<255;i++) // Changed starting index of loop from i=0 to i=1, skipping the first bit\n\t\t\tout = out + in[i];\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [254:0] in,\n\toutput reg [7:0] out\n);\n\n\talways_comb begin\n\t\tout = 0;\n\t\tfor (int i=0;i<255;i++)\n\t\t\tout = out - in[i]; // Changed addition to subtraction, which logically doesn't make sense for counting\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [254:0] in,\n\toutput reg [7:0] out\n);\n\n\talways_comb begin\n\t\tout = 0;\n\t\tfor (int i=0;i<255;i++)\n\t\t\tout = out + (in[i] && 1'b1); // Changed addition operand to bitwise AND with 1'b1\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [254:0] in,\n\toutput reg [7:0] out\n);\n\n\talways_comb begin\n\t\tout = 0;\n\t\tfor (int i=0;i<=254;i++) // Explicitly used i<=254 instead of i<255 for loop condition\n\t\t\tout = out + in[i];\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [254:0] in,\n\toutput reg [7:0] out\n);\n\n\talways_comb begin\n\t\tout = 0;\n\t\tfor (int i=0;i<255;i++)\n\t\t\tout = out + in[i] ^ 1'b0; // Added XOR with 1'b0 which doesn't change the logic\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [254:0] in,\n\toutput reg [7:0] out\n);\n\n\talways_comb begin\n\t\tout = 0;\n\t\tfor (int i=0;i<255;i++)\n\t\t\tout = out + (in[i] | 1'b0); // Added OR with 1'b0 which doesn't change the logic\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [254:0] in,\n\toutput reg [7:0] out\n);\n\n\talways_comb begin\n\t\tout = 0;\n\t\tfor (int i=255;i>0;i--) // Changed loop to count backwards, which logically will produce the same result but is a minor modification\n\t\t\tout = out + in[i-1];\n\tend\n\t\nendmodule\n"]}
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{"task_id": "gatesv", "mutants": ["module top_module (\n\tinput [3:0] in,\n\toutput [2:0] out_both,\n\toutput [3:1] out_any,\n\toutput [3:0] out_different\n);\n\n\tassign out_both = in[2:0] & in[3:1];\n\tassign out_any = in[2:0] | in[3:1];\n\tassign out_different = in^{in[3], in[3:1]}; // Changed in[0] to in[3] in the XOR operation for out_different.\n\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput [2:0] out_both,\n\toutput [3:1] out_any,\n\toutput [3:0] out_different\n);\n\n\tassign out_both = in[2:0] | in[3:1]; // Changed & to | for out_both calculation.\n\tassign out_any = in[2:0] | in[3:1];\n\tassign out_different = in^{in[0], in[3:1]};\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput [2:0] out_both,\n\toutput [3:1] out_any,\n\toutput [3:0] out_different\n);\n\n\tassign out_both = in[2:0] & in[3:1];\n\tassign out_any = in[2:0] & in[3:1]; // Changed | to & for out_any calculation.\n\tassign out_different = in^{in[0], in[3:1]};\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput [2:0] out_both,\n\toutput [3:1] out_any,\n\toutput [3:0] out_different\n);\n\n\tassign out_both = in[2:0] & in[3:1];\n\tassign out_any = in[2:0] | in[3:1];\n\tassign out_different = in[3:0] ^{in[0], in[3:1]}; // Added [3:0] to explicitly specify the bit selection for in in out_different calculation.\n\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput [2:0] out_both,\n\toutput [3:1] out_any,\n\toutput [3:0] out_different\n);\n\n\tassign out_both = {1'b0, in[2:0] & in[3:1]}; // Prepended 1'b0 to out_both to change its calculation.\n\tassign out_any = in[2:0] | in[3:1];\n\tassign out_different = in^{in[0], in[3:1]};\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput [2:0] out_both,\n\toutput [3:1] out_any,\n\toutput [3:0] out_different\n);\n\n\tassign out_both = in[2:0] & in[3:1];\n\tassign out_any = in[2:0] | in[3:1];\n\tassign out_different = {in[0], in[3:1]} ^ in; // Swapped the order of operands in the XOR for out_different.\n\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput [2:0] out_both,\n\toutput [3:1] out_any,\n\toutput [3:0] out_different\n);\n\n\tassign out_both = in[2:0] & in[3:1];\n\tassign out_any = ~in[2:0] | in[3:1]; // Applied bitwise NOT to in[2:0] in the out_any calculation.\n\tassign out_different = in^{in[0], in[3:1]};\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput [2:0] out_both,\n\toutput [3:1] out_any,\n\toutput [3:0] out_different\n);\n\n\tassign out_both = in[2:0] & in[3:1];\n\tassign out_any = in[2:0] | ~in[3:1]; // Applied bitwise NOT to in[3:1] in the out_any calculation.\n\tassign out_different = in^{in[0], in[3:1]};\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput [2:0] out_both,\n\toutput [3:1] out_any,\n\toutput [3:0] out_different\n);\n\n\tassign out_both = (in[2:0] & in[3:1]) ^ 4'b0001; // Applied XOR with 4'b0001 to out_both calculation.\n\tassign out_any = in[2:0] | in[3:1];\n\tassign out_different = in^{in[0], in[3:1]};\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput [2:0] out_both,\n\toutput [3:1] out_any,\n\toutput [3:0] out_different\n);\n\n\tassign out_both = in[2:0] & in[3:1];\n\tassign out_any = in[2:0] | in[3:1];\n\tassign out_different = in^{in[1], in[3:1]}; // Changed in[0] to in[1] in the XOR operation for out_different.\n\nendmodule\n"]}
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{"task_id": "circuit6", "mutants": ["module top_module (\n\tinput [2:0] a, \n\toutput reg [15:0] q\n);\n\n\talways @(*) \n\t\tcase (a)\n\t\t\t0: q = 4658; // No change\n\t\t\t1: q = 44768; // No change\n\t\t\t2: q = 10196; // No change\n\t\t\t3: q = 23055; // Changed 23054 to 23055\n\t\t\t4: q = 8294; // No change\n\t\t\t5: q = 25806; // No change\n\t\t\t6: q = 50470; // No change\n\t\t\t7: q = 12057; // No change\n\t\tendcase\n\t\nendmodule\n", "module top_module (\n\tinput [2:0] a, \n\toutput reg [15:0] q\n);\n\n\talways @(*) \n\t\tcase (a)\n\t\t\t0: q = 4659; // Changed 4658 to 4659\n\t\t\t1: q = 44768; // No change\n\t\t\t2: q = 10196; // No change\n\t\t\t3: q = 23054; // No change\n\t\t\t4: q = 8294; // No change\n\t\t\t5: q = 25806; // No change\n\t\t\t6: q = 50470; // No change\n\t\t\t7: q = 12057; // No change\n\t\tendcase\n\t\nendmodule\n", "module top_module (\n\tinput [2:0] a, \n\toutput reg [15:0] q\n);\n\n\talways @(*) \n\t\tcase (a)\n\t\t\t0: q = 4658; // No change\n\t\t\t1: q = 44768; // No change\n\t\t\t2: q = 10197; // Changed 10196 to 10197\n\t\t\t3: q = 23054; // No change\n\t\t\t4: q = 8294; // No change\n\t\t\t5: q = 25806; // No change\n\t\t\t6: q = 50470; // No change\n\t\t\t7: q = 12057; // No change\n\t\tendcase\n\t\nendmodule\n", "module top_module (\n\tinput [2:0] a, \n\toutput reg [15:0] q\n);\n\n\talways @(*) \n\t\tcase (a)\n\t\t\t0: q = 4658; // No change\n\t\t\t1: q = 44769; // Changed 44768 to 44769\n\t\t\t2: q = 10196; // No change\n\t\t\t3: q = 23054; // No change\n\t\t\t4: q = 8294; // No change\n\t\t\t5: q = 25806; // No change\n\t\t\t6: q = 50470; // No change\n\t\t\t7: q = 12057; // No change\n\t\tendcase\n\t\nendmodule\n", "module top_module (\n\tinput [2:0] a, \n\toutput reg [15:0] q\n);\n\n\talways @(*) \n\t\tcase (a)\n\t\t\t0: q = 4658; // No change\n\t\t\t1: q = 44768; // No change\n\t\t\t2: q = 10196; // No change\n\t\t\t3: q = 23054; // No change\n\t\t\t4: q = 8295; // Changed 8294 to 8295\n\t\t\t5: q = 25806; // No change\n\t\t\t6: q = 50470; // No change\n\t\t\t7: q = 12057; // No change\n\t\tendcase\n\t\nendmodule\n", "module top_module (\n\tinput [2:0] a, \n\toutput reg [15:0] q\n);\n\n\talways @(*) \n\t\tcase (a)\n\t\t\t0: q = 4658; // No change\n\t\t\t1: q = 44768; // No change\n\t\t\t2: q = 10196; // No change\n\t\t\t3: q = 23054; // No change\n\t\t\t4: q = 8294; // No change\n\t\t\t5: q = 25807; // Changed 25806 to 25807\n\t\t\t6: q = 50470; // No change\n\t\t\t7: q = 12057; // No change\n\t\tendcase\n\t\nendmodule\n", "module top_module (\n\tinput [2:0] a, \n\toutput reg [15:0] q\n);\n\n\talways @(*) \n\t\tcase (a)\n\t\t\t0: q = 4658; // No change\n\t\t\t1: q = 44768; // No change\n\t\t\t2: q = 10196; // No change\n\t\t\t3: q = 23054; // No change\n\t\t\t4: q = 8294; // No change\n\t\t\t5: q = 25806; // No change\n\t\t\t6: q = 50471; // Changed 50470 to 50471\n\t\t\t7: q = 12057; // No change\n\t\tendcase\n\t\nendmodule\n", "module top_module (\n\tinput [2:0] a, \n\toutput reg [15:0] q\n);\n\n\talways @(*) \n\t\tcase (a)\n\t\t\t0: q = 4657; // Changed 4658 to 4657\n\t\t\t1: q = 44768; // No change\n\t\t\t2: q = 10196; // No change\n\t\t\t3: q = 23054; // No change\n\t\t\t4: q = 8294; // No change\n\t\t\t5: q = 25806; // No change\n\t\t\t6: q = 50470; // No change\n\t\t\t7: q = 12057; // No change\n\t\tendcase\n\t\nendmodule\n", "module top_module (\n\tinput [2:0] a, \n\toutput reg [15:0] q\n);\n\n\talways @(*) \n\t\tcase (a)\n\t\t\t0: q = 4658; // No change\n\t\t\t1: q = 44768; // No change\n\t\t\t2: q = 10196; // No change\n\t\t\t3: q = 23054; // No change\n\t\t\t4: q = 8294; // No change\n\t\t\t5: q = 25806; // No change\n\t\t\t6: q = 50470; // No change\n\t\t\t7: q = 12058; // Changed 12057 to 12058\n\t\tendcase\n\t\nendmodule\n", "module top_module (\n\tinput [2:0] a, \n\toutput reg [15:0] q\n);\n\n\talways @(*) \n\t\tcase (a)\n\t\t\t0: q = 4660; // Changed 4658 to 4660\n\t\t\t1: q = 44768; // No change\n\t\t\t2: q = 10196; // No change\n\t\t\t3: q = 23054; // No change\n\t\t\t4: q = 8294; // No change\n\t\t\t5: q = 25806; // No change\n\t\t\t6: q = 50470; // No change\n\t\t\t7: q = 12057; // No change\n\t\tendcase\n\t\nendmodule\n"]}
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{"task_id": "m2014_q4f", "mutants": ["module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = in1 & in2; // Changed ~in2 to in2, removing the inversion\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = in1 | ~in2; // Changed & to | for OR operation\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = in1 ^ ~in2; // Changed & to ^ for XOR operation\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = in1 ~& in2; // Changed & to ~&, NAND operation\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = (in1 & ~in2) == 1'b0; // Added equality check to 0\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = ~in1 & ~in2; // Changed in1 to ~in1, inverting it\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = in1 & ~in2 & in1; // Added an extra in1 at the end, redundant logic\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = in1 & (~in2 | in2); // Added OR operation with in2 and its inverse\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = (in1 & ~in2) != 1'b1; // Added inequality check to 1\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = (in1 | ~in2) & in1; // Changed initial AND to OR, then AND with in1\nendmodule\n"]}
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{"task_id": "xnorgate", "mutants": ["module top_module(\n\tinput a, \n\tinput b,\n\toutput out\n);\n\t\n\tassign out = ~(a^b); // Change: None, this is the original for reference.\n\t\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\toutput out\n);\n\t\n\tassign out = (a^b); // Change: Removed the NOT operation, making it an XOR instead of XNOR.\n\t\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\toutput out\n);\n\t\n\tassign out = ~(a|b); // Change: Replaced XOR with OR, then NOTed it.\n\t\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\toutput out\n);\n\t\n\tassign out = ~(a&b); // Change: Replaced XOR with AND, then NOTed it.\n\t\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\toutput out\n);\n\t\n\tassign out = ~(a^~b); // Change: Inverted input b before XOR, altering the gate's logic.\n\t\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\toutput out\n);\n\t\n\tassign out = ~(~a^b); // Change: Inverted input a before XOR, altering the gate's logic.\n\t\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\toutput out\n);\n\t\n\tassign out = ~a^b; // Change: Inverted input a then directly XOR with b, without NOTing the result.\n\t\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\toutput out\n);\n\t\n\tassign out = a^~b; // Change: Inverted input b then directly XOR with a, without NOTing the result.\n\t\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\toutput out\n);\n\t\n\tassign out = a^b; // Change: Directly XOR without NOTing it, similar to mutant 2 but restated for emphasis on direct XOR operation.\n\t\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\toutput out\n);\n\t\n\tassign out = ~(a^b^1); // Change: Added an XOR with 1 (logical negation) to the original expression, altering the logic.\n\t\nendmodule\n"]}
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{"task_id": "mt2015_q4", "mutants": ["module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = x & ~y; // Changed | to &\n\t\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = ~x | ~y; // Added ~ before x\n\t\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = x | y; // Removed ~ before y\n\t\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = x ^ ~y; // Changed | to ^\n\t\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = (x | ~y) & x; // Added & x at the end of the expression\n\t\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = (x | ~y) | x; // Added | x at the end of the expression\n\t\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = x | (~y & x); // Added & x inside the parentheses with ~y\n\t\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = x | (~y | x); // Changed & to | inside the parentheses with ~y\n\t\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = (x | ~y) ^ y; // Added ^ y at the end of the expression\n\t\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = (x | ~y) ~^ x; // Changed ^ to ~^ at the end of the expression\n\t\nendmodule\n"]}
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{"task_id": "fsm_onehot", "mutants": ["module top_module (\n\tinput in,\n\tinput [9:0] state,\n\toutput [9:0] next_state,\n\toutput out1,\n\toutput out2);\n\t\n\tassign out1 = state[8] | state[9];\n\tassign out2 = state[7] | state[9]; // Unchanged\n\n\tassign next_state[0] = !in && (|state[4:1] | state[7] | state[8] | state[9]); // Changed |state[4:0] to |state[4:1]\n\tassign next_state[1] = in && (state[0] | state[8] | state[9]);\n\tassign next_state[2] = in && state[1];\n\tassign next_state[3] = in && state[2];\n\tassign next_state[4] = in && state[3];\n\tassign next_state[5] = in && state[4];\n\tassign next_state[6] = in && state[5];\n\tassign next_state[7] = in && (state[6] | state[7]);\n\tassign next_state[8] = !in && state[5];\n\tassign next_state[9] = !in && state[6];\n\nendmodule\n", "module top_module (\n\tinput in,\n\tinput [9:0] state,\n\toutput [9:0] next_state,\n\toutput out1,\n\toutput out2);\n\t\n\tassign out1 = state[8] | state[9];\n\tassign out2 = state[7] | state[8]; // Changed state[9] to state[8]\n\n\tassign next_state[0] = !in && (|state[4:0] | state[7] | state[8] | state[9]);\n\tassign next_state[1] = in && (state[0] | state[8] | state[9]);\n\tassign next_state[2] = in && state[1];\n\tassign next_state[3] = in && state[2];\n\tassign next_state[4] = in && state[3];\n\tassign next_state[5] = in && state[4];\n\tassign next_state[6] = in && state[5];\n\tassign next_state[7] = in && (state[6] | state[7]);\n\tassign next_state[8] = !in && state[5];\n\tassign next_state[9] = !in && state[6];\n\nendmodule\n", "module top_module (\n\tinput in,\n\tinput [9:0] state,\n\toutput [9:0] next_state,\n\toutput out1,\n\toutput out2);\n\t\n\tassign out1 = state[8] | state[9];\n\tassign out2 = state[7] | state[9];\n\n\tassign next_state[0] = !in && (|state[4:0] | state[7] | state[8]); // Removed state[9] from the equation\n\tassign next_state[1] = in && (state[0] | state[8] | state[9]);\n\tassign next_state[2] = in && state[1];\n\tassign next_state[3] = in && state[2];\n\tassign next_state[4] = in && state[3];\n\tassign next_state[5] = in && state[4];\n\tassign next_state[6] = in && state[5];\n\tassign next_state[7] = in && (state[6] | state[7]);\n\tassign next_state[8] = !in && state[5];\n\tassign next_state[9] = !in && state[6];\n\nendmodule\n", "module top_module (\n\tinput in,\n\tinput [9:0] state,\n\toutput [9:0] next_state,\n\toutput out1,\n\toutput out2);\n\t\n\tassign out1 = state[8] | state[9];\n\tassign out2 = state[7] | state[9];\n\n\tassign next_state[0] = !in && (|state[4:0] | state[7] | state[8] | state[9]);\n\tassign next_state[1] = in && (state[0] | state[8]); // Removed state[9] from the equation\n\tassign next_state[2] = in && state[1];\n\tassign next_state[3] = in && state[2];\n\tassign next_state[4] = in && state[3];\n\tassign next_state[5] = in && state[4];\n\tassign next_state[6] = in && state[5];\n\tassign next_state[7] = in && (state[6] | state[7]);\n\tassign next_state[8] = !in && state[5];\n\tassign next_state[9] = !in && state[6];\n\nendmodule\n", "module top_module (\n\tinput in,\n\tinput [9:0] state,\n\toutput [9:0] next_state,\n\toutput out1,\n\toutput out2);\n\t\n\tassign out1 = state[8] | state[9];\n\tassign out2 = state[7] | state[9];\n\n\tassign next_state[0] = !in && (|state[4:0] | state[7] | state[8] | state[9]);\n\tassign next_state[1] = in && (state[0] | state[8] | state[9]);\n\tassign next_state[2] = in && state[1];\n\tassign next_state[3] = in && state[2];\n\tassign next_state[4] = !in && state[3]; // Changed in to !in\n\tassign next_state[5] = in && state[4];\n\tassign next_state[6] = in && state[5];\n\tassign next_state[7] = in && (state[6] | state[7]);\n\tassign next_state[8] = !in && state[5];\n\tassign next_state[9] = !in && state[6];\n\nendmodule\n", "module top_module (\n\tinput in,\n\tinput [9:0] state,\n\toutput [9:0] next_state,\n\toutput out1,\n\toutput out2);\n\t\n\tassign out1 = state[8] | state[9];\n\tassign out2 = state[7] | state[9];\n\n\tassign next_state[0] = !in && (|state[4:0] | state[7] | state[8] | state[9]);\n\tassign next_state[1] = in && (state[0] | state[8] | state[9]);\n\tassign next_state[2] = in && state[1];\n\tassign next_state[3] = in && state[2];\n\tassign next_state[4] = in && state[3];\n\tassign next_state[5] = in && state[4];\n\tassign next_state[6] = !in && state[5]; // Changed in to !in\n\tassign next_state[7] = in && (state[6] | state[7]);\n\tassign next_state[8] = !in && state[5];\n\tassign next_state[9] = !in && state[6];\n\nendmodule\n", "module top_module (\n\tinput in,\n\tinput [9:0] state,\n\toutput [9:0] next_state,\n\toutput out1,\n\toutput out2);\n\t\n\tassign out1 = state[8] | state[9];\n\tassign out2 = state[6] | state[9]; // Changed state[7] to state[6]\n\n\tassign next_state[0] = !in && (|state[4:0] | state[7] | state[8] | state[9]);\n\tassign next_state[1] = in && (state[0] | state[8] | state[9]);\n\tassign next_state[2] = in && state[1];\n\tassign next_state[3] = in && state[2];\n\tassign next_state[4] = in && state[3];\n\tassign next_state[5] = in && state[4];\n\tassign next_state[6] = in && state[5];\n\tassign next_state[7] = in && (state[6] | state[7]);\n\tassign next_state[8] = !in && state[5];\n\tassign next_state[9] = !in && state[6];\n\nendmodule\n", "module top_module (\n\tinput in,\n\tinput [9:0] state,\n\toutput [9:0] next_state,\n\toutput out1,\n\toutput out2);\n\t\n\tassign out1 = state[7] | state[9]; // Changed state[8] to state[7]\n\tassign out2 = state[7] | state[9];\n\n\tassign next_state[0] = !in && (|state[4:0] | state[7] | state[8] | state[9]);\n\tassign next_state[1] = in && (state[0] | state[8] | state[9]);\n\tassign next_state[2] = in && state[1];\n\tassign next_state[3] = in && state[2];\n\tassign next_state[4] = in && state[3];\n\tassign next_state[5] = in && state[4];\n\tassign next_state[6] = in && state[5];\n\tassign next_state[7] = in && (state[6] | state[7]);\n\tassign next_state[8] = !in && state[5];\n\tassign next_state[9] = !in && state[6];\n\nendmodule\n", "module top_module (\n\tinput in,\n\tinput [9:0] state,\n\toutput [9:0] next_state,\n\toutput out1,\n\toutput out2);\n\t\n\tassign out1 = state[8] | state[9];\n\tassign out2 = state[7] | state[9];\n\n\tassign next_state[0] = !in && (|state[3:0] | state[7] | state[8] | state[9]); // Changed |state[4:0] to |state[3:0]\n\tassign next_state[1] = in && (state[0] | state[8] | state[9]);\n\tassign next_state[2] = in && state[1];\n\tassign next_state[3] = in && state[2];\n\tassign next_state[4] = in && state[3];\n\tassign next_state[5] = in && state[4];\n\tassign next_state[6] = in && state[5];\n\tassign next_state[7] = in && (state[6] | state[7]);\n\tassign next_state[8] = !in && state[5];\n\tassign next_state[9] = !in && state[6];\n\nendmodule\n", "module top_module (\n\tinput in,\n\tinput [9:0] state,\n\toutput [9:0] next_state,\n\toutput out1,\n\toutput out2);\n\t\n\tassign out1 = state[8] | state[9]; // Unchanged\n\tassign out2 = state[7] | !state[9]; // Changed state[9] to !state[9]\n\n\tassign next_state[0] = !in && (|state[4:0] | state[7] | state[8] | state[9]);\n\tassign next_state[1] = in && (state[0] | state[8] | state[9]);\n\tassign next_state[2] = in && state[1];\n\tassign next_state[3] = in && state[2];\n\tassign next_state[4] = in && state[3];\n\tassign next_state[5] = in && state[4];\n\tassign next_state[6] = in && state[5];\n\tassign next_state[7] = in && (state[6] | state[7]);\n\tassign next_state[8] = !in && state[5];\n\tassign next_state[9] = !in && state[6];\n\nendmodule\n"]}
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{"task_id": "popcount3", "mutants": ["module top_module (\n input [2:0] in,\n output [1:0] out\n);\n\n assign out = in[0]+in[1]+in[2] + 1; // Added 1 to the output sum\nendmodule\n", "module top_module (\n input [2:0] in,\n output [1:0] out\n);\n\n assign out = in[0]+in[1]; // Removed in[2] from the sum\nendmodule\n", "module top_module (\n input [2:0] in,\n output [2:0] out // Changed output bit width to 3\n);\n\n assign out = in[0]+in[1]+in[2];\nendmodule\n", "module top_module (\n input [2:0] in,\n output [1:0] out\n);\n\n assign out = in[0] ^ in[1] ^ in[2]; // Changed addition to XOR\nendmodule\n", "module top_module (\n input [2:0] in,\n output reg [1:0] out // Changed output to reg and used always block\n);\n\n always @(in) begin\n out = in[0] + in[1] + in[2];\n end\nendmodule\n", "module top_module (\n input [2:0] in,\n output [1:0] out\n);\n\n assign out = in[0] | in[1] | in[2]; // Changed addition to OR\nendmodule\n", "module top_module (\n input [2:0] in,\n output [1:0] out\n);\n\n assign out = {in[2], in[0] + in[1]}; // Changed the output composition\nendmodule\n", "module top_module (\n input [2:0] in,\n output [1:0] out\n);\n\n assign out = (in[0] + in[1] + in[2]) - 1; // Subtracted 1 from the output sum\nendmodule\n", "module top_module (\n input [2:0] in,\n output [1:0] out\n);\n\n assign out = in[0] & in[1] & in[2]; // Changed addition to AND\nendmodule\n", "module top_module (\n input [2:0] in,\n output [1:0] out\n);\n\n assign out = in[0]+in[1]+~in[2]; // Inverted in[2] before addition\nendmodule\n"]}
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{"task_id": "vector5", "mutants": ["module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\tinput e,\n\toutput [24:0] out\n);\n\n\tassign out = ~{ {5{a}}, {5{b}}, {5{c}}, {5{d}}, {4{e}} } ^ {5{a,b,c,d,e}}; // Changed {5{e}} to {4{e}}, decreasing the replication of 'e' by 1\n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\tinput e,\n\toutput [24:0] out\n);\n\n\tassign out = ~{ {5{a}}, {5{b}}, {5{c}}, {5{d}}, {5{e}} } ^ {4{a,b,c,d,e}}; // Changed {5{a,b,c,d,e}} to {4{a,b,c,d,e}}, decreasing the replication in the XOR operation by 1\n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\tinput e,\n\toutput [24:0] out\n);\n\n\tassign out = ~{ {4{a}}, {5{b}}, {5{c}}, {5{d}}, {5{e}} } ^ {5{a,b,c,d,e}}; // Changed {5{a}} to {4{a}}, decreasing the replication of 'a' by 1\n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\tinput e,\n\toutput [24:0] out\n);\n\n\tassign out = ~{ {5{a}}, {5{b}}, {5{c}}, {4{d}}, {5{e}} } ^ {5{a,b,c,d,e}}; // Changed {5{d}} to {4{d}}, decreasing the replication of 'd' by 1\n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\tinput e,\n\toutput [24:0] out\n);\n\n\tassign out[24:1] = ~{ {5{a}}, {5{b}}, {5{c}}, {5{d}}, {5{e}} }[24:1] ^ {5{a,b,c,d,e}}[24:1]; // Removed the last comparison, out[0] will not be assigned\n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\tinput e,\n\toutput [24:0] out\n);\n\n\tassign out = ~{ {5{a}}, {5{b}}, {5{c}}, {5{d}}, {6{e}} } ^ {5{a,b,c,d,e}}; // Changed {5{e}} to {6{e}}, increasing the replication of 'e' by 1\n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\tinput e,\n\toutput [24:0] out\n);\n\n\tassign out = ~{ {5{a}}, {5{b}}, {4{c}}, {5{d}}, {5{e}} } ^ {5{a,b,c,d,e}}; // Changed {5{c}} to {4{c}}, decreasing the replication of 'c' by 1\n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\tinput e,\n\toutput [24:0] out\n);\n\n\tassign out = ~{ {6{a}}, {5{b}}, {5{c}}, {5{d}}, {5{e}} } ^ {5{a,b,c,d,e}}; // Changed {5{a}} to {6{a}}, increasing the replication of 'a' by 1\n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\tinput e,\n\toutput [24:0] out\n);\n\n\tassign out = ~{ {5{a}}, {6{b}}, {5{c}}, {5{d}}, {5{e}} } ^ {5{a,b,c,d,e}}; // Changed {5{b}} to {6{b}}, increasing the replication of 'b' by 1\n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput c,\n\tinput d,\n\tinput e,\n\toutput [24:0] out\n);\n\n\tassign out = ~{ {5{a}}, {5{b}}, {5{c}}, {5{d}}, {5{e}} } ^ {5{a,b,c,d,e}, 1'b0}; // Added a 1'b0 to the end of the vector in the XOR operation\n\nendmodule\n"]}
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{"task_id": "circuit1", "mutants": ["module top_module (\n\tinput a, \n\tinput b, \n\toutput q\n);\n\n\tassign q = a|b; // Changed & to |, altering the logic function\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\toutput q\n);\n\n\tassign q = a&b; // No change, for baseline comparison\n\tassign q = ~q; // Added inversion of q, inverting the output\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\toutput q\n);\n\n\tassign q = a^b; // Changed & to ^, making it an XOR operation\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\toutput q\n);\n\n\tassign q = (a&b)&a; // Added an extra &a, redundantly & with a\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\toutput q\n);\n\n\tassign q = (a|b)&b; // Changed & to | then & with b, altering the operation\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\toutput q\n);\n\n\tassign q = a&~b; // Added inversion to b\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\toutput q\n);\n\n\tassign q = ~a&b; // Added inversion to a\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\toutput q\n);\n\n\tassign q = (a|~b); // Changed & to | and inverted b\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\toutput q\n);\n\n\tassign q = (a^~b); // Changed & to ^ and inverted b, making it a negative XOR\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\toutput q\n);\n\n\tassign q = (a&b)|a; // Added |a at the end, altering the boolean function\nendmodule\n"]}
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{"task_id": "2014_q3c", "mutants": ["module top_module (\n\tinput clk,\n\tinput x,\n\tinput [2:0] y,\n\toutput reg Y0,\n\toutput reg z\n);\n\n\talways @(*) begin\n\t\tcase ({y[2:0], x})\n\t\t\t4'h0: Y0 = 0;\n\t\t\t4'h1: Y0 = 1; // Change: No modification, serves as a baseline.\n\t\t\t4'h2: Y0 = 1;\n\t\t\t4'h3: Y0 = 0;\n\t\t\t4'h4: Y0 = 0;\n\t\t\t4'h5: Y0 = 1;\n\t\t\t4'h6: Y0 = 1;\n\t\t\t4'h7: Y0 = 0;\n\t\t\t4'h8: Y0 = 1;\n\t\t\t4'h9: Y0 = 0;\n\t\t\tdefault: Y0 = 1'bx; // Change: was 1'bx, no actual change, just annotating baseline.\n\t\tendcase\n\t\t\n\t\tcase (y[2:0])\n\t\t\t3'h0: z = 0;\n\t\t\t3'h1: z = 0;\n\t\t\t3'h2: z = 0;\n\t\t\t3'h3: z = 1;\n\t\t\t3'h4: z = 1;\n\t\t\tdefault: z = 1'bx;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput x,\n\tinput [2:0] y,\n\toutput reg Y0,\n\toutput reg z\n);\n\n\talways @(*) begin\n\t\tcase ({y[2:0], x})\n\t\t\t4'h0: Y0 = 0;\n\t\t\t4'h1: Y0 = 1;\n\t\t\t4'h2: Y0 = 1;\n\t\t\t4'h3: Y0 = 0;\n\t\t\t4'h4: Y0 = 0;\n\t\t\t4'h5: Y0 = 1;\n\t\t\t4'h6: Y0 = 1;\n\t\t\t4'h7: Y0 = 0;\n\t\t\t4'h8: Y0 = 0; // Change: was Y0 = 1;\n\t\t\t4'h9: Y0 = 0;\n\t\t\tdefault: Y0 = 1'bx;\n\t\tendcase\n\t\t\n\t\tcase (y[2:0])\n\t\t\t3'h0: z = 0;\n\t\t\t3'h1: z = 0;\n\t\t\t3'h2: z = 0;\n\t\t\t3'h3: z = 1;\n\t\t\t3'h4: z = 1;\n\t\t\tdefault: z = 1'bx;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput x,\n\tinput [2:0] y,\n\toutput reg Y0,\n\toutput reg z\n);\n\n\talways @(*) begin\n\t\tcase ({y[2:0], x})\n\t\t\t4'h0: Y0 = 0;\n\t\t\t4'h1: Y0 = 1;\n\t\t\t4'h2: Y0 = 1;\n\t\t\t4'h3: Y0 = 0;\n\t\t\t4'h4: Y0 = 0;\n\t\t\t4'h5: Y0 = 1;\n\t\t\t4'h6: Y0 = 1;\n\t\t\t4'h7: Y0 = 0;\n\t\t\t4'h8: Y0 = 1;\n\t\t\t4'h9: Y0 = 0;\n\t\t\tdefault: Y0 = 1'bz; // Change: was 1'bx;\n\t\tendcase\n\t\t\n\t\tcase (y[2:0])\n\t\t\t3'h0: z = 0;\n\t\t\t3'h1: z = 0;\n\t\t\t3'h2: z = 0;\n\t\t\t3'h3: z = 1;\n\t\t\t3'h4: z = 1;\n\t\t\tdefault: z = 1'bx;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput x,\n\tinput [2:0] y,\n\toutput reg Y0,\n\toutput reg z\n);\n\n\talways @(*) begin\n\t\tcase ({y[2:0], x})\n\t\t\t4'h0: Y0 = 1; // Change: was Y0 = 0;\n\t\t\t4'h1: Y0 = 1;\n\t\t\t4'h2: Y0 = 1;\n\t\t\t4'h3: Y0 = 0;\n\t\t\t4'h4: Y0 = 0;\n\t\t\t4'h5: Y0 = 1;\n\t\t\t4'h6: Y0 = 1;\n\t\t\t4'h7: Y0 = 0;\n\t\t\t4'h8: Y0 = 1;\n\t\t\t4'h9: Y0 = 0;\n\t\t\tdefault: Y0 = 1'bx;\n\t\tendcase\n\t\t\n\t\tcase (y[2:0])\n\t\t\t3'h0: z = 0;\n\t\t\t3'h1: z = 0;\n\t\t\t3'h2: z = 0;\n\t\t\t3'h3: z = 1;\n\t\t\t3'h4: z = 1;\n\t\t\tdefault: z = 1'bx;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput x,\n\tinput [2:0] y,\n\toutput reg Y0,\n\toutput reg z\n);\n\n\talways @(*) begin\n\t\tcase ({y[2:0], x})\n\t\t\t4'h0: Y0 = 0;\n\t\t\t4'h1: Y0 = 1;\n\t\t\t4'h2: Y0 = 1;\n\t\t\t4'h3: Y0 = 0;\n\t\t\t4'h4: Y0 = 0;\n\t\t\t4'h5: Y0 = 1;\n\t\t\t4'h6: Y0 = 0; // Change: was Y0 = 1;\n\t\t\t4'h7: Y0 = 0;\n\t\t\t4'h8: Y0 = 1;\n\t\t\t4'h9: Y0 = 0;\n\t\t\tdefault: Y0 = 1'bx;\n\t\tendcase\n\t\t\n\t\tcase (y[2:0])\n\t\t\t3'h0: z = 0;\n\t\t\t3'h1: z = 0;\n\t\t\t3'h2: z = 0;\n\t\t\t3'h3: z = 1;\n\t\t\t3'h4: z = 1;\n\t\t\tdefault: z = 1'bx;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput x,\n\tinput [2:0] y,\n\toutput reg Y0,\n\toutput reg z\n);\n\n\talways @(*) begin\n\t\tcase ({y[2:0], x})\n\t\t\t4'h0: Y0 = 0;\n\t\t\t4'h1: Y0 = 1;\n\t\t\t4'h2: Y0 = 1;\n\t\t\t4'h3: Y0 = 0;\n\t\t\t4'h4: Y0 = 0;\n\t\t\t4'h5: Y0 = 1;\n\t\t\t4'h6: Y0 = 1;\n\t\t\t4'h7: Y0 = 0;\n\t\t\t4'h8: Y0 = 1;\n\t\t\t4'h9: Y0 = 1; // Change: was Y0 = 0;\n\t\t\tdefault: Y0 = 1'bx;\n\t\tendcase\n\t\t\n\t\tcase (y[2:0])\n\t\t\t3'h0: z = 0;\n\t\t\t3'h1: z = 0;\n\t\t\t3'h2: z = 0;\n\t\t\t3'h3: z = 1;\n\t\t\t3'h4: z = 1;\n\t\t\tdefault: z = 1'bx;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput x,\n\tinput [2:0] y,\n\toutput reg Y0,\n\toutput reg z\n);\n\n\talways @(*) begin\n\t\tcase ({y[2:0], x})\n\t\t\t4'h0: Y0 = 0;\n\t\t\t4'h1: Y0 = 1;\n\t\t\t4'h2: Y0 = 1;\n\t\t\t4'h3: Y0 = 0;\n\t\t\t4'h4: Y0 = 1; // Change: was Y0 = 0;\n\t\t\t4'h5: Y0 = 1;\n\t\t\t4'h6: Y0 = 1;\n\t\t\t4'h7: Y0 = 0;\n\t\t\t4'h8: Y0 = 1;\n\t\t\t4'h9: Y0 = 0;\n\t\t\tdefault: Y0 = 1'bx;\n\t\tendcase\n\t\t\n\t\tcase (y[2:0])\n\t\t\t3'h0: z = 0;\n\t\t\t3'h1: z = 0;\n\t\t\t3'h2: z = 0;\n\t\t\t3'h3: z = 1;\n\t\t\t3'h4: z = 1;\n\t\t\tdefault: z = 1'bx;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput x,\n\tinput [2:0] y,\n\toutput reg Y0,\n\toutput reg z\n);\n\n\talways @(*) begin\n\t\tcase ({y[2:0], x})\n\t\t\t4'h0: Y0 = 0;\n\t\t\t4'h1: Y0 = 1;\n\t\t\t4'h2: Y0 = 1;\n\t\t\t4'h3: Y0 = 0;\n\t\t\t4'h4: Y0 = 0;\n\t\t\t4'h5: Y0 = 1;\n\t\t\t4'h6: Y0 = 1;\n\t\t\t4'h7: Y0 = 1; // Change: was Y0 = 0;\n\t\t\t4'h8: Y0 = 1;\n\t\t\t4'h9: Y0 = 0;\n\t\t\tdefault: Y0 = 1'bx;\n\t\tendcase\n\t\t\n\t\tcase (y[2:0])\n\t\t\t3'h0: z = 0;\n\t\t\t3'h1: z = 0;\n\t\t\t3'h2: z = 0;\n\t\t\t3'h3: z = 1;\n\t\t\t3'h4: z = 1;\n\t\t\tdefault: z = 1'bx;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput x,\n\tinput [2:0] y,\n\toutput reg Y0,\n\toutput reg z\n);\n\n\talways @(*) begin\n\t\tcase ({y[2:0], x})\n\t\t\t4'h0: Y0 = 0;\n\t\t\t4'h1: Y0 = 1;\n\t\t\t4'h2: Y0 = 0; // Change: was Y0 = 1;\n\t\t\t4'h3: Y0 = 0;\n\t\t\t4'h4: Y0 = 0;\n\t\t\t4'h5: Y0 = 1;\n\t\t\t4'h6: Y0 = 1;\n\t\t\t4'h7: Y0 = 0;\n\t\t\t4'h8: Y0 = 1;\n\t\t\t4'h9: Y0 = 0;\n\t\t\tdefault: Y0 = 1'bx;\n\t\tendcase\n\t\t\n\t\tcase (y[2:0])\n\t\t\t3'h0: z = 0;\n\t\t\t3'h1: z = 0;\n\t\t\t3'h2: z = 0;\n\t\t\t3'h3: z = 1;\n\t\t\t3'h4: z = 1;\n\t\t\tdefault: z = 1'bx;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput clk,\n\tinput x,\n\tinput [2:0] y,\n\toutput reg Y0,\n\toutput reg z\n);\n\n\talways @(*) begin\n\t\tcase ({y[2:0], x})\n\t\t\t4'h0: Y0 = 0;\n\t\t\t4'h1: Y0 = 1;\n\t\t\t4'h2: Y0 = 1;\n\t\t\t4'h3: Y0 = 0;\n\t\t\t4'h4: Y0 = 0;\n\t\t\t4'h5: Y0 = 1;\n\t\t\t4'h6: Y0 = 1;\n\t\t\t4'h7: Y0 = 0;\n\t\t\t4'h8: Y0 = 1;\n\t\t\t4'h9: Y0 = 0;\n\t\t\tdefault: Y0 = 0; // Change: was 1'bx;\n\t\tendcase\n\t\t\n\t\tcase (y[2:0])\n\t\t\t3'h0: z = 0;\n\t\t\t3'h1: z = 0;\n\t\t\t3'h2: z = 0;\n\t\t\t3'h3: z = 1;\n\t\t\t3'h4: z = 1;\n\t\t\tdefault: z = 1'bx;\n\t\tendcase\n\tend\n\t\nendmodule\n"]}
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{"task_id": "wire4", "mutants": ["module top_module (\n input a,\n input b,\n input c,\n output w,\n output x,\n output y,\n output z );\n \n assign {w,x,y,z} = {a,b,c,b}; // Changed the order in the assignment to {a,b,c,b}\n \nendmodule\n", "module top_module (\n input a,\n input b,\n input c,\n output w,\n output x,\n output y,\n output z );\n \n assign {w,x,y,z} = {b,a,b,c}; // Changed the mapping from {a,b,b,c} to {b,a,b,c}\n \nendmodule\n", "module top_module (\n input a,\n input b,\n input c,\n output w,\n output x,\n output y,\n output z );\n \n assign {w,x,z,y} = {a,b,b,c}; // Changed the output order to {w,x,z,y}\n \nendmodule\n", "module top_module (\n input a,\n input b,\n input c,\n output w,\n output x,\n output y,\n output z );\n \n assign {x,w,y,z} = {a,b,b,c}; // Changed the output order to {x,w,y,z}\n \nendmodule\n", "module top_module (\n input a,\n input b,\n input c,\n output w,\n output x,\n output y,\n output z );\n \n assign {w,x,y,z} = {a,a,b,c}; // Changed second input from 'b' to 'a' in assignment\n \nendmodule\n", "module top_module (\n input a,\n input b,\n input c,\n output w,\n output x,\n output y,\n output z );\n \n assign {w,x,y,z} = {1'b0,b,b,c}; // Fixed 'w' to 0 instead of mapping it to 'a'\n \nendmodule\n", "module top_module (\n input a,\n input b,\n input c,\n output w,\n output x,\n output y,\n output z );\n \n assign {w,x,y,z} = {a,b,!b,c}; // Changed 'y' mapping from 'b' to '!b' (inverted 'b')\n \nendmodule\n", "module top_module (\n input a,\n input b,\n input c,\n output w,\n output x,\n output y,\n output z );\n \n assign {w,x,y,z} = {a,b,b,~c}; // Inverted 'c' before assigning to 'z'\n \nendmodule\n", "module top_module (\n input a,\n input b,\n input c,\n output w,\n output x,\n output y,\n output z );\n \n assign {w,x,y,z} = {a,{1'b1},b,c}; // Inserted constant '1' before 'b', this will cause a syntax error, demonstrating a mutation that introduces a bug.\n \nendmodule\n", "module top_module (\n input a,\n input b,\n input c,\n output w,\n output x,\n output y,\n output z );\n \n assign {w,x,y,z} = {a,b,b,c,1'b1}; // Added an extra 1'b1 at the end, which will cause mismatch in assignment\n \nendmodule\n"]}
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{"task_id": "always_case", "mutants": ["module top_module (\n\tinput [2:0] sel,\n\tinput [3:0] data0,\n\tinput [3:0] data1,\n\tinput [3:0] data2,\n\tinput [3:0] data3,\n\tinput [3:0] data4,\n\tinput [3:0] data5,\n\toutput reg [3:0] out\n);\n\n\talways @(*) begin\n\t\tcase (sel)\n\t\t\t3'h0: out = data0;\n\t\t\t3'h1: out = data1;\n\t\t\t3'h2: out = data2;\n\t\t\t3'h3: out = data3;\n\t\t\t3'h4: out = data4;\n\t\t\t// Changed output for case 3'h5 to be data4 instead of data5\n\t\t\t3'h5: out = data4; // Mutation: output data4 instead of data5\n\t\t\tdefault: out = 4'b0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [2:0] sel,\n\tinput [3:0] data0,\n\tinput [3:0] data1,\n\tinput [3:0] data2,\n\tinput [3:0] data3,\n\tinput [3:0] data4,\n\tinput [3:0] data5,\n\toutput reg [3:0] out\n);\n\n\talways @(*) begin\n\t\tcase (sel)\n\t\t\t3'h0: out = data0;\n\t\t\t3'h1: out = data1;\n\t\t\t3'h2: out = data2;\n\t\t\t3'h3: out = data3;\n\t\t\t3'h4: out = data4;\n\t\t\t3'h5: out = data5;\n\t\t\t// Changed default output to 4'b1 instead of 4'b0\n\t\t\tdefault: out = 4'b1; // Mutation: default output to 4'b1\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [2:0] sel,\n\tinput [3:0] data0,\n\tinput [3:0] data1,\n\tinput [3:0] data2,\n\tinput [3:0] data3,\n\tinput [3:0] data4,\n\tinput [3:0] data5,\n\toutput reg [3:0] out\n);\n\n\talways @(*) begin\n\t\tcase (sel)\n\t\t\t3'h0: out = data0;\n\t\t\t3'h1: out = data1;\n\t\t\t3'h2: out = data2;\n\t\t\t// Removed the case for 3'h3\n\t\t\t// 3'h3: out = data3; // Mutation: Removed case for 3'h3\n\t\t\t3'h4: out = data4;\n\t\t\t3'h5: out = data5;\n\t\t\tdefault: out = 4'b0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [2:0] sel,\n\tinput [3:0] data0,\n\tinput [3:0] data1,\n\tinput [3:0] data2,\n\tinput [3:0] data3,\n\tinput [3:0] data4,\n\tinput [3:0] data5,\n\toutput reg [3:0] out\n);\n\n\talways @(*) begin\n\t\tcase (sel)\n\t\t\t3'h0: out = data0;\n\t\t\t3'h1: out = data1;\n\t\t\t3'h2: out = data2;\n\t\t\t3'h3: out = data3;\n\t\t\t3'h4: out = data4;\n\t\t\t3'h5: out = data5;\n\t\t\t// Added an extra case, does nothing but changes the flow\n\t\t\t3'h6: out = out; // Mutation: Added redundant case\n\t\t\tdefault: out = 4'b0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [2:0] sel,\n\tinput [3:0] data0,\n\tinput [3:0] data1,\n\tinput [3:0] data2,\n\tinput [3:0] data3,\n\tinput [3:0] data4,\n\tinput [3:0] data5,\n\toutput reg [3:0] out\n);\n\n\talways @(*) begin\n\t\tcase (sel)\n\t\t\t// Changed the output of case 3'h0 to be data1 instead of data0\n\t\t\t3'h0: out = data1; // Mutation: output data1 instead of data0\n\t\t\t3'h1: out = data1;\n\t\t\t3'h2: out = data2;\n\t\t\t3'h3: out = data3;\n\t\t\t3'h4: out = data4;\n\t\t\t3'h5: out = data5;\n\t\t\tdefault: out = 4'b0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [2:0] sel,\n\tinput [3:0] data0,\n\tinput [3:0] data1,\n\tinput [3:0] data2,\n\tinput [3:0] data3,\n\tinput [3:0] data4,\n\tinput [3:0] data5,\n\toutput reg [3:0] out\n);\n\n\talways @(*) begin\n\t\tcase (sel)\n\t\t\t3'h0: out = data0;\n\t\t\t3'h1: out = data1;\n\t\t\t3'h2: out = data2;\n\t\t\t3'h3: out = data3;\n\t\t\t3'h4: out = data4;\n\t\t\t3'h5: out = data5;\n\t\t\t// Default behavior changed to output data0 instead of 4'b0\n\t\t\tdefault: out = data0; // Mutation: default to output data0\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [2:0] sel,\n\tinput [3:0] data0,\n\tinput [3:0] data1,\n\tinput [3:0] data2,\n\tinput [3:0] data3,\n\tinput [3:0] data4,\n\tinput [3:0] data5,\n\toutput reg [3:0] out\n);\n\n\talways @(*) begin\n\t\tcase (sel)\n\t\t\t3'h0: out = data0;\n\t\t\t3'h1: out = data1;\n\t\t\t3'h2: out = data2;\n\t\t\t3'h3: out = data3;\n\t\t\t// Swapped the assignments of data4 and data5\n\t\t\t3'h4: out = data5; // Mutation: swap data4 and data5\n\t\t\t3'h5: out = data4;\n\t\t\tdefault: out = 4'b0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [2:0] sel,\n\tinput [3:0] data0,\n\tinput [3:0] data1,\n\tinput [3:0] data2,\n\tinput [3:0] data3,\n\tinput [3:0] data4,\n\tinput [3:0] data5,\n\toutput reg [3:0] out\n);\n\n\talways @(*) begin\n\t\tcase (sel)\n\t\t\t3'h0: out = data0;\n\t\t\t3'h1: out = data1;\n\t\t\t3'h2: out = data2;\n\t\t\t3'h3: out = data3;\n\t\t\t3'h4: out = data4;\n\t\t\t3'h5: out = data5;\n\t\t\t// Added an unrelated modification, changed case notation\n\t\t\tdefault: out = 4'b0;\n\t\tendcase\n\tend\n\t\nendmodule\n// Note: This mutant does not introduce a functional change but might confuse regarding the intended mutation.\n", "module top_module (\n\tinput [2:0] sel,\n\tinput [3:0] data0,\n\tinput [3:0] data1,\n\tinput [3:0] data2,\n\tinput [3:0] data3,\n\tinput [3:0] data4,\n\tinput [3:0] data5,\n\toutput reg [3:0] out\n);\n\n\talways @(*) begin\n\t\tcase (sel)\n\t\t\t3'h0: out = data0;\n\t\t\t3'h1: out = data1;\n\t\t\t3'h2: out = data2;\n\t\t\t3'h3: out = data3;\n\t\t\t3'h4: out = data4;\n\t\t\t3'h5: out = data5;\n\t\t\t// Introduced a syntax error (missing semicolon) as a minor change\n\t\t\tdefault: out = 4'b0 // Mutation: Missing semicolon\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [2:0] sel,\n\tinput [3:0] data0,\n\tinput [3:0] data1,\n\tinput [3:0] data2,\n\tinput [3:0] data3,\n\tinput [3:0] data4,\n\tinput [3:0] data5,\n\toutput reg [3:0] out\n);\n\n\talways @(*) begin\n\t\tcase (sel)\n\t\t\t3'h0: out = data0;\n\t\t\t3'h1: out = data1;\n\t\t\t3'h2: out = data2;\n\t\t\t3'h3: out = data3;\n\t\t\t3'h4: out = data4;\n\t\t\t3'h5: out = data5;\n\t\t\t// Added a new case that is unlikely to be true, affecting the flow slightly\n\t\t\t3'h7: out = 4'b1111; // Mutation: Added unrealistic case\n\t\t\tdefault: out = 4'b0;\n\t\tendcase\n\tend\n\t\nendmodule\n"]}
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{"task_id": "bugs_addsubz", "mutants": ["module top_module (\n\tinput do_sub,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out,\n\toutput reg result_is_zero\n);\n\n\talways @(*) begin\n\t\tcase (do_sub)\n\t\t\t0: out = a + b;\n\t\t\t1: out = a - b - 1; // Changed: Subtracted 1 from the subtraction operation\n\t\tendcase\n\t\tresult_is_zero = (out == 0);\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput do_sub,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out,\n\toutput reg result_is_zero\n);\n\n\talways @(*) begin\n\t\tcase (do_sub)\n\t\t\t0: out = a + b + 1; // Changed: Added 1 to the addition operation\n\t\t\t1: out = a - b;\n\t\tendcase\n\t\tresult_is_zero = (out == 0);\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput do_sub,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out,\n\toutput reg result_is_zero\n);\n\n\talways @(*) begin\n\t\tcase (do_sub)\n\t\t\t0: out = a + b;\n\t\t\t1: out = a - b;\n\t\tendcase\n\t\tresult_is_zero = (out == 8'h00); // Changed: Used hexadecimal for comparison\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput do_sub,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out,\n\toutput reg result_is_zero\n);\n\n\talways @(*) begin\n\t\tcase (do_sub)\n\t\t\t0: out = a + b;\n\t\t\t// Removed case 1 entirely, altering behavior for subtraction\n\t\tendcase\n\t\tresult_is_zero = (out == 0);\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput do_sub,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out,\n\toutput reg result_is_zero\n);\n\n\talways @(*) begin\n\t\tcase (do_sub)\n\t\t\t0: out = a + b;\n\t\t\t1: out = a - b;\n\t\tendcase\n\t\tresult_is_zero = (out == 0) ? 0 : 1; // Changed: Inverted logic of result_is_zero\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput do_sub,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out,\n\toutput reg result_is_zero\n);\n\n\talways @(*) begin\n\t\tcase (do_sub)\n\t\t\t0: out = a;\n\t\t\t1: out = b; // Changed: Directly assign `a` or `b` to `out` instead of performing an operation\n\t\tendcase\n\t\tresult_is_zero = (out == 0);\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput do_sub,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out,\n\toutput reg result_is_zero\n);\n\n\talways @(*) begin\n\t\tcase (do_sub)\n\t\t\t0: out = a + b;\n\t\t\t1: out = a - b;\n\t\tendcase\n\t\tresult_is_zero = !out; // Changed: Used logical NOT directly on `out` for result_is_zero calculation\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput do_sub,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out,\n\toutput reg result_is_zero\n);\n\n\talways @(*) begin\n\t\tcase (do_sub)\n\t\t\t0: out = a | b; // Changed: Used bitwise OR instead of addition\n\t\t\t1: out = a & b; // Changed: Used bitwise AND instead of subtraction\n\t\tendcase\n\t\tresult_is_zero = (out == 0);\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput do_sub,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out,\n\toutput reg result_is_zero\n);\n\n\talways @(*) begin\n\t\tcase (do_sub)\n\t\t\t0: out = a + b;\n\t\t\t1: out = a - b;\n\t\tendcase\n\t\tresult_is_zero = (out == 0) ^ 1; // Changed: Added XOR with 1 to invert result_is_zero calculation\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput do_sub,\n\tinput [7:0] a,\n\tinput [7:0] b,\n\toutput reg [7:0] out,\n\toutput reg result_is_zero\n);\n\n\talways @(*) begin\n\t\tcase (do_sub)\n\t\t\t0: out = a + b;\n\t\t\t1: out = a - b >> 1; // Changed: Shifted the subtraction result to the right by 1\n\t\tendcase\n\t\tresult_is_zero = (out == 0);\n\tend\n\t\nendmodule\n"]}
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{"task_id": "bugs_case", "mutants": ["module top_module (\n\tinput [7:0] code,\n\toutput reg [3:0] out,\n\toutput reg valid\n);\n\talways @(*) begin\n\t\tout = 0; // No change here\n\t\tvalid = 1;\n\t\tcase (code)\n\t\t\t8'h45: out = 0; // No change\n\t\t\t8'h16: out = 1; // No change\n\t\t\t8'h1e: out = 2; // No change\n\t\t\t8'h26: out = 3; // No change\n\t\t\t8'h25: out = 4; // No change\n\t\t\t8'h2e: out = 5; // No change\n\t\t\t8'h36: out = 6; // No change\n\t\t\t8'h3d: out = 7; // No change\n\t\t\t8'h3e: out = 8; // No change\n\t\t\t8'h46: out = 10; // Changed output from 9 to 10\n\t\t\tdefault: valid = 0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] code,\n\toutput reg [3:0] out,\n\toutput reg valid\n);\n\talways @(*) begin\n\t\tout = 0;\n\t\tvalid = 0; // Changed initial valid state to 0\n\t\tcase (code)\n\t\t\t8'h45: out = 0;\n\t\t\t8'h16: out = 1;\n\t\t\t8'h1e: out = 2;\n\t\t\t8'h26: out = 3;\n\t\t\t8'h25: out = 4;\n\t\t\t8'h2e: out = 5;\n\t\t\t8'h36: out = 6;\n\t\t\t8'h3d: out = 7;\n\t\t\t8'h3e: out = 8;\n\t\t\t8'h46: out = 9;\n\t\t\tdefault: valid = 0; // No change here\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] code,\n\toutput reg [3:0] out,\n\toutput reg valid\n);\n\talways @(*) begin\n\t\tout = 1; // Changed default output to 1\n\t\tvalid = 1;\n\t\tcase (code)\n\t\t\t8'h45: out = 0;\n\t\t\t8'h16: out = 1;\n\t\t\t8'h1e: out = 2;\n\t\t\t8'h26: out = 3;\n\t\t\t8'h25: out = 4;\n\t\t\t8'h2e: out = 5;\n\t\t\t8'h36: out = 6;\n\t\t\t8'h3d: out = 7;\n\t\t\t8'h3e: out = 8;\n\t\t\t8'h46: out = 9;\n\t\t\tdefault: valid = 0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] code,\n\toutput reg [3:0] out,\n\toutput reg valid\n);\n\talways @(*) begin\n\t\tout = 0;\n\t\tvalid = 1;\n\t\tcase (code)\n\t\t\t8'h45: out = 0;\n\t\t\t8'h16: out = 1;\n\t\t\t8'h1e: out = 2;\n\t\t\t8'h26: out = 3;\n\t\t\t8'h25: out = 4;\n\t\t\t8'h2e: out = 5;\n\t\t\t8'h36: out = 7; // Changed output for 8'h36 from 6 to 7\n\t\t\t8'h3d: out = 7;\n\t\t\t8'h3e: out = 8;\n\t\t\t8'h46: out = 9;\n\t\t\tdefault: valid = 0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] code,\n\toutput reg [3:0] out,\n\toutput reg valid\n);\n\talways @(*) begin\n\t\tout = 0;\n\t\tvalid = 1;\n\t\tcase (code)\n\t\t\t8'h45: out = 0;\n\t\t\t8'h16: out = 1;\n\t\t\t8'h1e: out = 3; // Changed output for 8'h1e from 2 to 3\n\t\t\t8'h26: out = 3;\n\t\t\t8'h25: out = 4;\n\t\t\t8'h2e: out = 5;\n\t\t\t8'h36: out = 6;\n\t\t\t8'h3d: out = 7;\n\t\t\t8'h3e: out = 8;\n\t\t\t8'h46: out = 9;\n\t\t\tdefault: valid = 0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] code,\n\toutput reg [3:0] out,\n\toutput reg valid\n);\n\talways @(*) begin\n\t\tout = 0;\n\t\tvalid = 1;\n\t\tcase (code)\n\t\t\t8'h45: out = 0;\n\t\t\t8'h16: out = 2; // Changed output for 8'h16 from 1 to 2\n\t\t\t8'h1e: out = 2;\n\t\t\t8'h26: out = 3;\n\t\t\t8'h25: out = 4;\n\t\t\t8'h2e: out = 5;\n\t\t\t8'h36: out = 6;\n\t\t\t8'h3d: out = 7;\n\t\t\t8'h3e: out = 8;\n\t\t\t8'h46: out = 9;\n\t\t\tdefault: valid = 0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] code,\n\toutput reg [3:0] out,\n\toutput reg valid\n);\n\talways @(*) begin\n\t\tout = 0;\n\t\tvalid = 1;\n\t\tcase (code)\n\t\t\t8'h45: out = 0;\n\t\t\t8'h16: out = 1;\n\t\t\t8'h1e: out = 2;\n\t\t\t8'h26: out = 3;\n\t\t\t8'h25: out = 4;\n\t\t\t8'h2e: out = 5;\n\t\t\t8'h36: out = 6;\n\t\t\t8'h3d: out = 6; // Changed output for 8'h3d from 7 to 6\n\t\t\t8'h3e: out = 8;\n\t\t\t8'h46: out = 9;\n\t\t\tdefault: valid = 0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] code,\n\toutput reg [3:0] out,\n\toutput reg valid\n);\n\talways @(*) begin\n\t\tout = 0;\n\t\tvalid = 1;\n\t\tcase (code)\n\t\t\t8'h45: out = 1; // Changed output for 8'h45 from 0 to 1\n\t\t\t8'h16: out = 1;\n\t\t\t8'h1e: out = 2;\n\t\t\t8'h26: out = 3;\n\t\t\t8'h25: out = 4;\n\t\t\t8'h2e: out = 5;\n\t\t\t8'h36: out = 6;\n\t\t\t8'h3d: out = 7;\n\t\t\t8'h3e: out = 8;\n\t\t\t8'h46: out = 9;\n\t\t\tdefault: valid = 0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] code,\n\toutput reg [3:0] out,\n\toutput reg valid\n);\n\talways @(*) begin\n\t\tout = 0;\n\t\tvalid = 1;\n\t\tcase (code)\n\t\t\t8'h45: out = 0;\n\t\t\t8'h16: out = 1;\n\t\t\t8'h1e: out = 2;\n\t\t\t8'h26: out = 3;\n\t\t\t8'h25: out = 5; // Changed output for 8'h25 from 4 to 5\n\t\t\t8'h2e: out = 5;\n\t\t\t8'h36: out = 6;\n\t\t\t8'h3d: out = 7;\n\t\t\t8'h3e: out = 8;\n\t\t\t8'h46: out = 9;\n\t\t\tdefault: valid = 0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] code,\n\toutput reg [3:0] out,\n\toutput reg valid\n);\n\talways @(*) begin\n\t\tout = 0;\n\t\tvalid = 1;\n\t\tcase (code)\n\t\t\t8'h45: out = 0;\n\t\t\t8'h16: out = 1;\n\t\t\t8'h1e: out = 2;\n\t\t\t8'h26: out = 3;\n\t\t\t8'h25: out = 4;\n\t\t\t8'h2e: out = 6; // Changed output for 8'h2e from 5 to 6\n\t\t\t8'h36: out = 6;\n\t\t\t8'h3d: out = 7;\n\t\t\t8'h3e: out = 8;\n\t\t\t8'h46: out = 9;\n\t\t\tdefault: valid = 0;\n\t\tendcase\n\tend\n\t\nendmodule\n"]}
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{"task_id": "vectorr", "mutants": ["module top_module (\n\tinput [7:0] in,\n\toutput [7:0] out\n);\n\t// Changed out[0] and out[1] positions\n\tassign {out[1],out[0],out[2],out[3],out[4],out[5],out[6],out[7]} = in;\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput [7:0] out\n);\n\t// Changed connection for out[7] to be from in[0] directly\n\tassign {out[0],out[1],out[2],out[3],out[4],out[5],out[6],out[7]} = {in[7:1], in[0]};\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput [7:0] out\n);\n\t// Added inversion to out[0]\n\tassign {out[0],out[1],out[2],out[3],out[4],out[5],out[6],out[7]} = ~{in[7]};\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput [7:0] out\n);\n\t// Swapped out[2] and out[3]\n\tassign {out[0],out[1],out[3],out[2],out[4],out[5],out[6],out[7]} = in;\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput [7:0] out\n);\n\t// Modified to reverse only the first 4 bits\n\tassign {out[0],out[1],out[2],out[3],out[4],out[5],out[6],out[7]} = {in[3:0], in[7:4]};\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput [7:0] out\n);\n\t// Used bitwise AND with 1 on out[0], which does not change functionality but changes the expression\n\tassign {out[0],out[1],out[2],out[3],out[4],out[5],out[6],out[7]} = in & 8'hFF;\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput [7:0] out\n);\n\t// Added bitwise OR with 0, which is a no-operation but changes the code\n\tassign {out[0],out[1],out[2],out[3],out[4],out[5],out[6],out[7]} = in | 8'h00;\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput [7:0] out\n);\n\t// Inserted a redundant bitwise XOR with 0\n\tassign {out[0],out[1],out[2],out[3],out[4],out[5],out[6],out[7]} = in ^ 8'h00;\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput [7:0] out\n);\n\t// Swapped the positions of out[6] and out[7]\n\tassign {out[0],out[1],out[2],out[3],out[4],out[5],out[7],out[6]} = in;\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput [7:0] out\n);\n\t// Changed out[4] to be always 0, altering functionality slightly\n\tassign {out[0],out[1],out[2],out[3],1'b0,out[5],out[6],out[7]} = in;\n\t\nendmodule\n"]}
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{"task_id": "kmap3", "mutants": ["module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput reg out\n);\n\t\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 0;\n 4'h1: out = 0;\n 4'h3: out = 1;\n 4'h2: out = 1;\n 4'h4: out = 1'bx;\n 4'h5: out = 0;\n 4'h7: out = 0;\n 4'h6: out = 0;\n 4'hc: out = 1;\n 4'hd: out = 1; // Changed 1'bx to 1\n 4'hf: out = 1;\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 1'bx;\n 4'hb: out = 1;\n 4'ha: out = 1;\n endcase\n end\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput reg out\n);\n\t\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 0;\n 4'h1: out = 0;\n 4'h3: out = 1;\n 4'h2: out = 1;\n 4'h4: out = 1'bx;\n 4'h5: out = 0;\n 4'h7: out = 0;\n 4'h6: out = 1; // Changed 0 to 1\n 4'hc: out = 1;\n 4'hd: out = 1'bx;\n 4'hf: out = 1;\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 1'bx;\n 4'hb: out = 1;\n 4'ha: out = 1;\n endcase\n end\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput reg out\n);\n\t\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 0;\n 4'h1: out = 0;\n 4'h3: out = 1;\n 4'h2: out = 1;\n 4'h4: out = 0; // Changed 1'bx to 0\n 4'h5: out = 0;\n 4'h7: out = 0;\n 4'h6: out = 0;\n 4'hc: out = 1;\n 4'hd: out = 1'bx;\n 4'hf: out = 1;\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 1'bx;\n 4'hb: out = 1;\n 4'ha: out = 1;\n endcase\n end\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput reg out\n);\n\t\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 0;\n 4'h1: out = 0;\n 4'h3: out = 1;\n 4'h2: out = 1;\n 4'h4: out = 1'bx;\n 4'h5: out = 0;\n 4'h7: out = 1; // Changed 0 to 1\n 4'h6: out = 0;\n 4'hc: out = 1;\n 4'hd: out = 1'bx;\n 4'hf: out = 1;\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 1'bx;\n 4'hb: out = 1;\n 4'ha: out = 1;\n endcase\n end\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput reg out\n);\n\t\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 1; // Changed 0 to 1\n 4'h1: out = 0;\n 4'h3: out = 1;\n 4'h2: out = 1;\n 4'h4: out = 1'bx;\n 4'h5: out = 0;\n 4'h7: out = 0;\n 4'h6: out = 0;\n 4'hc: out = 1;\n 4'hd: out = 1'bx;\n 4'hf: out = 1;\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 1'bx;\n 4'hb: out = 1;\n 4'ha: out = 1;\n endcase\n end\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput reg out\n);\n\t\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 0;\n 4'h1: out = 0;\n 4'h3: out = 1;\n 4'h2: out = 1;\n 4'h4: out = 1'bx;\n 4'h5: out = 0;\n 4'h7: out = 0;\n 4'h6: out = 0;\n 4'hc: out = 0; // Changed 1 to 0\n 4'hd: out = 1'bx;\n 4'hf: out = 1;\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 1'bx;\n 4'hb: out = 1;\n 4'ha: out = 1;\n endcase\n end\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput reg out\n);\n\t\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 0;\n 4'h1: out = 0;\n 4'h3: out = 1;\n 4'h2: out = 1;\n 4'h4: out = 1'bx;\n 4'h5: out = 1; // Changed 0 to 1\n 4'h7: out = 0;\n 4'h6: out = 0;\n 4'hc: out = 1;\n 4'hd: out = 1'bx;\n 4'hf: out = 1;\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 1'bx;\n 4'hb: out = 1;\n 4'ha: out = 1;\n endcase\n end\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput reg out\n);\n\t\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 0;\n 4'h1: out = 0;\n 4'h3: out = 0; // Changed 1 to 0\n 4'h2: out = 1;\n 4'h4: out = 1'bx;\n 4'h5: out = 0;\n 4'h7: out = 0;\n 4'h6: out = 0;\n 4'hc: out = 1;\n 4'hd: out = 1'bx;\n 4'hf: out = 1;\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 1'bx;\n 4'hb: out = 1;\n 4'ha: out = 1;\n endcase\n end\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput reg out\n);\n\t\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 0;\n 4'h1: out = 0;\n 4'h3: out = 1;\n 4'h2: out = 1;\n 4'h4: out = 1'bx;\n 4'h5: out = 0;\n 4'h7: out = 0;\n 4'h6: out = 0;\n 4'hc: out = 1;\n 4'hd: out = 1'bx;\n 4'hf: out = 1;\n 4'he: out = 1;\n 4'h8: out = 0; // Changed 1 to 0\n 4'h9: out = 1'bx;\n 4'hb: out = 1;\n 4'ha: out = 1;\n endcase\n end\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput reg out\n);\n\t\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 0;\n 4'h1: out = 0;\n 4'h3: out = 1;\n 4'h2: out = 1;\n 4'h4: out = 1'bx;\n 4'h5: out = 0;\n 4'h7: out = 0;\n 4'h6: out = 0;\n 4'hc: out = 1;\n 4'hd: out = 0; // Changed 1'bx to 0\n 4'hf: out = 1;\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 1'bx;\n 4'hb: out = 1;\n 4'ha: out = 1;\n endcase\n end\nendmodule\n"]}
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{"task_id": "always_if", "mutants": ["module top_module (\n\tinput a,\n\tinput b,\n\tinput sel_b1,\n\tinput sel_b2,\n\toutput out_assign,\n\toutput reg out_always\n);\n\n\tassign out_assign = (sel_b1 & sel_b2) ? b : a; // No change\n\talways @(*) out_always = (sel_b1 | sel_b2) ? b : a; // Changed & to | in always block\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput sel_b1,\n\tinput sel_b2,\n\toutput out_assign,\n\toutput reg out_always\n);\n\n\tassign out_assign = (sel_b1 & sel_b2) ? a : b; // Swapped a and b in assign statement\n\talways @(*) out_always = (sel_b1 & sel_b2) ? b : a; // No change\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput sel_b1,\n\tinput sel_b2,\n\toutput out_assign,\n\toutput reg out_always\n);\n\n\tassign out_assign = (sel_b1 | sel_b2) ? b : a; // Changed & to | in assign statement\n\talways @(*) out_always = (sel_b1 & sel_b2) ? b : a; // No change\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput sel_b1,\n\tinput sel_b2,\n\toutput out_assign,\n\toutput reg out_always\n);\n\n\tassign out_assign = (sel_b1 & sel_b2) ? b : a; // No change\n\talways @(*) out_always = (sel_b1 & !sel_b2) ? b : a; // Changed sel_b2 to !sel_b2 in always block\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput sel_b1,\n\tinput sel_b2,\n\toutput out_assign,\n\toutput reg out_always\n);\n\n\tassign out_assign = (sel_b1 & !sel_b2) ? b : a; // Changed sel_b2 to !sel_b2 in assign statement\n\talways @(*) out_always = (sel_b1 & sel_b2) ? b : a; // No change\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput sel_b1,\n\tinput sel_b2,\n\toutput out_assign,\n\toutput reg out_always\n);\n\n\tassign out_assign = (sel_b1 & sel_b2) ? b : a; // No change\n\talways @(*) out_always = !(sel_b1 & sel_b2) ? b : a; // Added negation to condition in always block\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput sel_b1,\n\tinput sel_b2,\n\toutput out_assign,\n\toutput reg out_always\n);\n\n\tassign out_assign = !(sel_b1 & sel_b2) ? b : a; // Added negation to condition in assign statement\n\talways @(*) out_always = (sel_b1 & sel_b2) ? b : a; // No change\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput sel_b1,\n\tinput sel_b2,\n\toutput out_assign,\n\toutput reg out_always\n);\n\n\tassign out_assign = (sel_b1 & sel_b2) ? b : a; // No change\n\talways @(*) out_always = (sel_b1 & sel_b2) ? a : b; // Swapped a and b in always block\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput sel_b1,\n\tinput sel_b2,\n\toutput out_assign,\n\toutput reg out_always\n);\n\n\tassign out_assign = (sel_b1 ^ sel_b2) ? b : a; // Changed & to ^ in assign statement\n\talways @(*) out_always = (sel_b1 & sel_b2) ? b : a; // No change\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput sel_b1,\n\tinput sel_b2,\n\toutput out_assign,\n\toutput reg out_always\n);\n\n\tassign out_assign = (sel_b1 & sel_b2) ? b : a; // No change\n\talways @(*) out_always = (sel_b1 ^ sel_b2) ? b : a; // Changed & to ^ in always block\n\t\nendmodule\n"]}
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{"task_id": "kmap1", "mutants": ["module top_module(\n\tinput a, \n\tinput b,\n\tinput c,\n\toutput out\n);\n\t\n\tassign out = (a & b | c); // Changed OR to AND between a and b\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\tinput c,\n\toutput out\n);\n\t\n\tassign out = (a | b & c); // Changed OR to AND between b and c\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\tinput c,\n\toutput out\n);\n\t\n\tassign out = ~(a | b | c); // Added NOT operator at the beginning\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\tinput c,\n\toutput out\n);\n\t\n\tassign out = (a | b | ~c); // Added NOT operator to c\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\tinput c,\n\toutput out\n);\n\t\n\tassign out = (a ^ b | c); // Changed OR between a and b to XOR\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\tinput c,\n\toutput out\n);\n\t\n\tassign out = (a | b); // Removed c from the equation\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\tinput c,\n\toutput out\n);\n\t\n\tassign out = (a | c); // Removed b from the equation\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\tinput c,\n\toutput out\n);\n\t\n\tassign out = (b | c); // Removed a from the equation\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\tinput c,\n\toutput out\n);\n\t\n\tassign out = ((a | b) & c); // Changed OR to AND after (a | b)\nendmodule\n", "module top_module(\n\tinput a, \n\tinput b,\n\tinput c,\n\toutput out\n);\n\t\n\tassign out = (!(a | b | c)); // Added an extra NOT operator, making it a double negative\nendmodule\n"]}
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{"task_id": "mux2to1", "mutants": ["module top_module (\n\tinput a,\n\tinput b,\n\tinput sel,\n\toutput out\n);\n\n\tassign out = sel ? a : b; // Change: swapped a and b in the ternary operator.\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput sel,\n\toutput out\n);\n\n\tassign out = sel ? b : !a; // Change: negated a.\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput sel,\n\toutput out\n);\n\n\tassign out = !sel ? b : a; // Change: negated sel.\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput sel,\n\toutput out\n);\n\n\tassign out = sel && b || !sel && a; // Change: converted ternary operation to logical operation.\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput sel,\n\toutput reg out // Change: output changed from wire to reg.\n);\n\n\talways @(sel or a or b) begin\n\t\tout = sel ? b : a; // Used procedural assignment inside always block.\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput sel,\n\toutput out\n);\n\n\t// Change: Added redundant bitwise AND with 1'b1 to sel.\n\tassign out = (sel & 1'b1) ? b : a;\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput sel,\n\toutput out\n);\n\n\t// Change: Added redundant bitwise OR with 1'b0 to both a and b.\n\tassign out = sel ? b | 1'b0 : a | 1'b0;\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput sel,\n\toutput out\n);\n\n\tassign out = sel ? (b ^ 1'b0) : (a ^ 1'b0); // Change: Added redundant XOR with 0 which has no effect.\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput sel,\n\toutput out\n);\n\n\t// Change: Directly use !sel for a and sel for b, logically equivalent to original but syntactically different.\n\tassign out = (!sel & a) | (sel & b);\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput sel,\n\toutput out\n);\n\n\t// Change: Implemented using a case statement, functionally same but structurally different.\n\talways @(*) begin\n\t\tcase(sel)\n\t\t\t1'b0: out = a;\n\t\t\t1'b1: out = b;\n\t\t\tdefault: out = 1'bx; // Added an undefined case handling even though it's unreachable with a 1-bit sel.\n\t\tendcase\n\tend\n\t\nendmodule\n"]}
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{"task_id": "gates4", "mutants": ["module top_module (\n\tinput [3:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = ∈ // Unchanged\n\tassign out_or = |in[3:1]; // Changed: OR operation now uses bits [3:1] instead of [3:0]\n\tassign out_xor = ^in; // Unchanged\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = &in[3:1]; // Changed: AND operation now uses bits [3:1] instead of [3:0]\n\tassign out_or = |in; // Unchanged\n\tassign out_xor = ^in; // Unchanged\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = ∈ // Unchanged\n\tassign out_or = |in; // Unchanged\n\tassign out_xor = ^in[3:1]; // Changed: XOR operation now uses bits [3:1] instead of [3:0]\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = in[0] & in[1] & in[2]; // Changed: AND operation explicitly defined for bits [2:0], excluding [3]\n\tassign out_or = |in; // Unchanged\n\tassign out_xor = ^in; // Unchanged\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = ∈ // Unchanged\n\tassign out_or = in[3] | in[2] | in[1]; // Changed: OR operation explicitly defined for bits [3:1], excluding [0]\n\tassign out_xor = ^in; // Unchanged\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = ∈ // Unchanged\n\tassign out_or = |in; // Unchanged\n\tassign out_xor = in[3] ^ in[2] ^ in[1]; // Changed: XOR operation explicitly defined for bits [3:1], excluding [0]\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = &(in & 4'b1110); // Changed: AND operation with masked input, forcing bit 0 to 0\n\tassign out_or = |in; // Unchanged\n\tassign out_xor = ^in; // Unchanged\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = ∈ // Unchanged\n\tassign out_or = |(in | 4'b0001); // Changed: OR operation with forced bit 0 to 1\n\tassign out_xor = ^in; // Unchanged\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = ∈ // Unchanged\n\tassign out_or = |in; // Unchanged\n\tassign out_xor = ^in ^ 1'b1; // Changed: XOR operation result is inverted\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = ∈ // Unchanged\n\tassign out_or = |in; // Unchanged\n\tassign out_xor = ^in ^ in[0]; // Changed: XOR operation with an additional XOR against in[0]\n\t\nendmodule\n"]}
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{"task_id": "reduction", "mutants": ["module top_module (\n\tinput [7:0] in,\n\toutput parity\n);\n\n\tassign parity = ^in[7:1]; // Changed: Exclude the LSB from parity calculation\n\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput parity\n);\n\n\tassign parity = ^in[7:0] ^ 1'b1; // Changed: Inverted the final parity bit\n\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput parity\n);\n\n\twire intermediate_parity;\n\tassign intermediate_parity = ^in; // Changed: Introduced an intermediate signal\n\tassign parity = intermediate_parity;\n\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput reg parity // Changed: Changed output from wire to reg\n);\n\n\talways @(*) begin\n\t\tparity = ^in;\n\tend\n\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput parity\n);\n\n\tassign parity = ^in & 1'b1; // Changed: ANDed the result with 1, which does not change the logic but adds an operation\n\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput parity\n);\n\n\tassign parity = ^in | 0; // Changed: ORed the result with 0, which does not change the logic but adds an operation\n\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput parity\n);\n\n\tassign parity = in[0] ^ in[1] ^ in[2] ^ in[3] ^ in[4] ^ in[5] ^ in[6]; // Changed: Excluded in[7] from the calculation\n\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput parity\n);\n\n\tassign parity = ~(^in); // Changed: Negated the entire expression, which changes the parity from even to odd\n\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput parity\n);\n\n\t// Changed: Used reduction NAND instead of XOR and then negated to keep even parity logic\n\tassign parity = ~(&in);\n\nendmodule\n", "module top_module (\n\tinput [7:0] in,\n\toutput parity\n);\n\n\tassign parity = ^in ^ in[0]; // Changed: XORed the result with the LSB of the input, altering the parity calculation\n\nendmodule\n"]}
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{"task_id": "fsm3comb", "mutants": ["module top_module (\n\tinput in,\n\tinput [1:0] state,\n\toutput reg [1:0] next_state,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\n always_comb begin\n\t\tcase (state)\n\t\t\tA: next_state = in ? B : A; // No change\n\t\t\tB: next_state = in ? C : C; // Change here, original: in ? B : C\n\t\t\tC: next_state = in ? D : A;\n\t\t\tD: next_state = in ? B : C;\n\t\tendcase\n end\n \n\tassign out = (state==D);\n\t\nendmodule\n", "module top_module (\n\tinput in,\n\tinput [1:0] state,\n\toutput reg [1:0] next_state,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\n always_comb begin\n\t\tcase (state)\n\t\t\tA: next_state = in ? B : A;\n\t\t\tB: next_state = in ? B : C;\n\t\t\tC: next_state = in ? D : D; // Change here, original: in ? D : A\n\t\t\tD: next_state = in ? B : C;\n\t\tendcase\n end\n \n\tassign out = (state==D);\n\t\nendmodule\n", "module top_module (\n\tinput in,\n\tinput [1:0] state,\n\toutput reg [1:0] next_state,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\n always_comb begin\n\t\tcase (state)\n\t\t\tA: next_state = in ? B : B; // Change here, original: in ? B : A\n\t\t\tB: next_state = in ? B : C;\n\t\t\tC: next_state = in ? D : A;\n\t\t\tD: next_state = in ? B : C;\n\t\tendcase\n end\n \n\tassign out = (state==D);\n\t\nendmodule\n", "module top_module (\n\tinput in,\n\tinput [1:0] state,\n\toutput reg [1:0] next_state,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\n always_comb begin\n\t\tcase (state)\n\t\t\tA: next_state = in ? B : A;\n\t\t\tB: next_state = in ? B : C;\n\t\t\tC: next_state = in ? D : A;\n\t\t\tD: next_state = in ? D : C; // Change here, original: in ? B : C\n\t\tendcase\n end\n \n\tassign out = (state==D);\n\t\nendmodule\n", "module top_module (\n\tinput in,\n\tinput [1:0] state,\n\toutput reg [1:0] next_state,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\n always_comb begin\n\t\tcase (state)\n\t\t\tA: next_state = in ? B : A;\n\t\t\tB: next_state = in ? B : C;\n\t\t\tC: next_state = in ? C : A; // Change here, original: in ? D : A\n\t\t\tD: next_state = in ? B : C;\n\t\tendcase\n end\n \n\tassign out = (state==D);\n\t\nendmodule\n", "module top_module (\n\tinput in,\n\tinput [1:0] state,\n\toutput reg [1:0] next_state,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\n always_comb begin\n\t\tcase (state)\n\t\t\tA: next_state = in ? A : A; // Change here, original: in ? B : A\n\t\t\tB: next_state = in ? B : C;\n\t\t\tC: next_state = in ? D : A;\n\t\t\tD: next_state = in ? B : C;\n\t\tendcase\n end\n \n\tassign out = (state==D);\n\t\nendmodule\n", "module top_module (\n\tinput in,\n\tinput [1:0] state,\n\toutput reg [1:0] next_state,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\n always_comb begin\n\t\tcase (state)\n\t\t\tA: next_state = in ? B : A;\n\t\t\tB: next_state = in ? A : C; // Change here, original: in ? B : C\n\t\t\tC: next_state = in ? D : A;\n\t\t\tD: next_state = in ? B : C;\n\t\tendcase\n end\n \n\tassign out = (state==D);\n\t\nendmodule\n", "module top_module (\n\tinput in,\n\tinput [1:0] state,\n\toutput reg [1:0] next_state,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\n always_comb begin\n\t\tcase (state)\n\t\t\tA: next_state = in ? B : A;\n\t\t\tB: next_state = in ? B : C;\n\t\t\tC: next_state = in ? D : A;\n\t\t\tD: next_state = in ? C : C; // Change here, original: in ? B : C\n\t\tendcase\n end\n \n\tassign out = (state==D);\n\t\nendmodule\n", "module top_module (\n\tinput in,\n\tinput [1:0] state,\n\toutput reg [1:0] next_state,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\n always_comb begin\n\t\tcase (state)\n\t\t\tA: next_state = in ? A : B; // Change here, original: in ? B : A\n\t\t\tB: next_state = in ? B : C;\n\t\t\tC: next_state = in ? D : A;\n\t\t\tD: next_state = in ? B : C;\n\t\tendcase\n end\n \n\tassign out = (state==D);\n\t\nendmodule\n", "module top_module (\n\tinput in,\n\tinput [1:0] state,\n\toutput reg [1:0] next_state,\n\toutput out\n);\n\tparameter A=0, B=1, C=2, D=3;\n\n always_comb begin\n\t\tcase (state)\n\t\t\tA: next_state = in ? C : A; // Change here, original: in ? B : A\n\t\t\tB: next_state = in ? B : C;\n\t\t\tC: next_state = in ? D : A;\n\t\t\tD: next_state = in ? B : C;\n\t\tendcase\n end\n \n\tassign out = (state==D);\n\t\nendmodule\n"]}
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{"task_id": "mt2015_q4b", "mutants": ["module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = ~(x^y); // No change in functionality, just formatting.\n\t\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = (x^y); // Change: Removed the NOT operation, altering functionality.\n\t\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = ~(x & y); // Change: Using AND instead of XOR, altering functionality significantly.\n\t\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = ~(x | y); // Change: Using OR instead of XOR, altering functionality.\n\t\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = ~(x^y) | y; // Change: Added OR with y, altering functionality.\n\t\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = ~((x^y) & x); // Change: Added AND with x, altering functionality.\n\t\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = ~(x^y) & x; // Change: Changed OR to AND with x, altering functionality.\n\t\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = ~(x^y) ^ x; // Change: Added XOR with x, altering functionality.\n\t\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = ~((x^y) | y); // Change: Added OR with y inside NOT, altering functionality.\n\t\nendmodule\n", "module top_module(\n\tinput x,\n\tinput y,\n\toutput z);\n\n\tassign z = ~((x^y) ^ y); // Change: Added XOR with y inside NOT, altering functionality.\n\t\nendmodule\n"]}
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{"task_id": "mt2015_eq2", "mutants": ["module top_module(\n\tinput [1:0] A,\n\tinput [1:0] B,\n\toutput z);\n\n\tassign z = A[1:0]!=B[1:0]; // Changed equality check to inequality\nendmodule\n", "module top_module(\n\tinput [1:0] A,\n\tinput [1:0] B,\n\toutput z);\n\n\tassign z = (A[1:0]==B[1:0])? 0 : 1; // Inverted the output using ternary operator\nendmodule\n", "module top_module(\n\tinput [1:0] A,\n\tinput [1:0] B,\n\toutput reg z); // Changed output type to reg\n\n\talways @(A or B) begin\n\t\tz = A == B; // Using procedural assignment inside always block\n\tend\nendmodule\n", "module top_module(\n\tinput [1:0] A,\n\tinput [1:0] B,\n\toutput z);\n\n\tassign z = A[1:0]==B[1:0] && A[0]; // Added an extra condition that checks A[0]\nendmodule\n", "module top_module(\n\tinput [1:0] A,\n\tinput [1:0] B,\n\toutput z);\n\n\tassign z = (A[1]==B[1]) && (A[0]==B[0]); // Explicitly comparing each bit\nendmodule\n", "module top_module(\n\tinput [1:0] A,\n\tinput [1:0] B,\n\toutput z);\n\n\tassign z = A[1:0]=={B[1], B[0]}; // Explicitly reconstructing B\nendmodule\n", "module top_module(\n\tinput [1:0] A,\n\tinput [1:0] B,\n\toutput z);\n\n\tassign z = A[1:0]<B[1:0]; // Changed equality check to less than\nendmodule\n", "module top_module(\n\tinput [1:0] A,\n\tinput [1:0] B,\n\toutput z);\n\n\tassign z = A[1:0]>B[1:0]; // Changed equality check to greater than\nendmodule\n", "module top_module(\n\tinput [1:0] A,\n\tinput [1:0] B,\n\toutput z);\n\n\tassign z = |(A[1:0]^B[1:0]); // XOR and then OR all bits for comparison\nendmodule\n", "module top_module(\n\tinput [1:0] A,\n\tinput [1:0] B,\n\toutput z);\n\n\tassign z = &(A[1:0]~^B[1:0]); // XNOR and then AND all bits for comparison\nendmodule\n"]}
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{"task_id": "gatesv100", "mutants": ["module top_module (\n\tinput [99:0] in,\n\toutput [98:0] out_both,\n\toutput [99:1] out_any,\n\toutput [99:0] out_different\n);\n\n\tassign out_both = in & {in[0], in[99:1]}; // Change: Used {in[0], in[99:1]} instead of in[99:1] for out_both, making the first bit dependent on in[0] and in[99]\n\tassign out_any = in | in[99:1];\n\tassign out_different = in ^ {in[0], in[99:1]};\n\t\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput [98:0] out_both,\n\toutput [99:1] out_any,\n\toutput [99:0] out_different\n);\n\n\tassign out_both = in & in[99:1];\n\tassign out_any = in & in[99:1]; // Change: Used & instead of | for out_any, altering its functionality to require both bits to be '1'\n\tassign out_different = in ^ {in[0], in[99:1]};\n\t\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput [98:0] out_both,\n\toutput [99:1] out_any,\n\toutput [99:0] out_different\n);\n\n\tassign out_both = in & in[99:1];\n\tassign out_any = in | in[99:1];\n\tassign out_different = in ~^ {in[0], in[99:1]}; // Change: Used ~^ for XOR, changing out_different to output when bits are the same.\n\t\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput [98:0] out_both,\n\toutput [99:1] out_any,\n\toutput [99:0] out_different\n);\n\n\tassign out_both = in | in[99:1]; // Change: Used | instead of & for out_both, changing its functionality to output '1' if either bit is '1'\n\tassign out_any = in | in[99:1];\n\tassign out_different = in ^ {in[0], in[99:1]};\n\t\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput [98:0] out_both,\n\toutput [99:1] out_any,\n\toutput [99:0] out_different\n);\n\n\tassign out_both = in & in[99:1];\n\tassign out_any = in | {in[0], in[99:1]}; // Change: Used {in[0], in[99:1]} instead of in[99:1] for out_any, making the first bit dependent on in[0] and in[99]\n\tassign out_different = in ^ {in[0], in[99:1]};\n\t\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput [98:0] out_both,\n\toutput [99:1] out_any,\n\toutput [99:0] out_different\n);\n\n\tassign out_both = in & in[99:1];\n\tassign out_any = in | in[99:1];\n\tassign out_different = in ^ in; // Change: Used in ^ in for out_different, resulting in all 0s because a bit XOR with itself is always 0.\n\t\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput [98:0] out_both,\n\toutput [99:1] out_any,\n\toutput [99:0] out_different\n);\n\n\tassign out_both = in & {1'b0, in[99:1]}; // Change: Used {1'b0, in[99:1]} for out_both, explicitly setting the first bit to 0.\n\tassign out_any = in | in[99:1];\n\tassign out_different = in ^ {in[0], in[99:1]};\n\t\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput [98:0] out_both,\n\toutput [99:1] out_any,\n\toutput [99:0] out_different\n);\n\n\tassign out_both = in & in[99:0]; // Change: Incorrectly used in[99:0], which is effectively the same as the original input vector and doesn't change the functionality.\n\tassign out_any = in | in[99:1];\n\tassign out_different = in ^ {in[0], in[99:1]};\n\t\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput [98:0] out_both,\n\toutput [99:1] out_any,\n\toutput [99:0] out_different\n);\n\n\tassign out_both = in & in[99:1];\n\tassign out_any = in ^ in[99:1]; // Change: Used ^ instead of | for out_any, changing its functionality to indicate when bits are different.\n\tassign out_different = in ^ {in[0], in[99:1]};\n\t\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput [98:0] out_both,\n\toutput [99:1] out_any,\n\toutput [99:0] out_different\n);\n\n\tassign out_both = ~in & in[99:1]; // Change: Used ~in instead of in for out_both, inverting the input bits before the AND operation.\n\tassign out_any = in | in[99:1];\n\tassign out_different = in ^ {in[0], in[99:1]};\n\t\nendmodule\n"]}
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{"task_id": "mux256to1v", "mutants": ["module top_module (\n input [1023:0] in,\n input [7:0] sel,\n output [3:0] out\n);\n\n assign out = {in[sel*4+2], in[sel*4+2], in[sel*4+1], in[sel*4+0]}; // Changed in[sel*4+3] to in[sel*4+2]\n\nendmodule\n", "module top_module (\n input [1023:0] in,\n input [7:0] sel,\n output [3:0] out\n);\n\n assign out = {in[sel*4+3], in[sel*4+1], in[sel*4+1], in[sel*4+0]}; // Changed in[sel*4+2] to in[sel*4+1]\n\nendmodule\n", "module top_module (\n input [1023:0] in,\n input [7:0] sel,\n output [3:0] out\n);\n\n assign out = in[sel*4+:4]; // Used part-select instead of concatenation\n\nendmodule\n", "module top_module (\n input [1023:0] in,\n input [7:0] sel,\n output [3:0] out\n);\n\n assign out = {in[sel*4+0], in[sel*4+1], in[sel*4+2], in[sel*4+3]}; // Reversed the bit order\n\nendmodule\n", "module top_module (\n input [1023:0] in,\n input [7:0] sel,\n output [3:0] out\n);\n\n assign out = {in[sel*4+3:sel*4+1], in[sel*4]}; // Changed the concatenation to use a range and single bit\n\nendmodule\n", "module top_module (\n input [1023:0] in,\n input [7:0] sel,\n output [3:0] out\n);\n\n assign out = {in[sel*4+3], in[sel*4+2], in[sel*4+0], in[sel*4+0]}; // Changed one of the in[sel*4+1] to in[sel*4+0]\n\nendmodule\n", "module top_module (\n input [1023:0] in,\n input [7:0] sel,\n output [3:0] out\n);\n\n assign out = {in[sel*4+3], in[sel*4+1], in[sel*4+2], in[sel*4+0]}; // Swapped in[sel*4+1] and in[sel*4+2]\n\nendmodule\n", "module top_module (\n input [1023:0] in,\n input [7:0] sel,\n output [3:0] out\n);\n\n assign out = {in[sel*5+3], in[sel*5+2], in[sel*5+1], in[sel*5+0]}; // Changed multiplier from *4 to *5\n\nendmodule\n", "module top_module (\n input [1023:0] in,\n input [7:0] sel,\n output [3:0] out\n);\n\n assign out = {1'b0, in[sel*4+2], in[sel*4+1], in[sel*4+0]}; // Replaced in[sel*4+3] with constant 1'b0\n\nendmodule\n", "module top_module (\n input [1023:0] in,\n input [7:0] sel,\n output [3:0] out\n);\n\n assign out = {in[sel*4+3], in[sel*4+3], in[sel*4+1], in[sel*4+3]}; // Repeated in[sel*4+3] multiple times\n\nendmodule\n"]}
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{"task_id": "mux9to1v", "mutants": ["module top_module (\n\tinput [15:0] a,\n\tinput [15:0] b,\n\tinput [15:0] c,\n\tinput [15:0] d,\n\tinput [15:0] e,\n\tinput [15:0] f,\n\tinput [15:0] g,\n\tinput [15:0] h,\n\tinput [15:0] i,\n\tinput [3:0] sel,\n\toutput logic [15:0] out\n);\n\n\talways @(*) begin\n\t\tout = '0; // Change: Initially set out to '0 instead of '1\n\t\tcase (sel)\n\t\t\t4'h0: out = a;\n\t\t\t4'h1: out = b;\n\t\t\t4'h2: out = c;\n\t\t\t4'h3: out = d;\n\t\t\t4'h4: out = e;\n\t\t\t4'h5: out = f;\n\t\t\t4'h6: out = g;\n\t\t\t4'h7: out = h;\n\t\t\t4'h8: out = i;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [15:0] a,\n\tinput [15:0] b,\n\tinput [15:0] c,\n\tinput [15:0] d,\n\tinput [15:0] e,\n\tinput [15:0] f,\n\tinput [15:0] g,\n\tinput [15:0] h,\n\tinput [15:0] i,\n\tinput [3:0] sel,\n\toutput logic [15:0] out\n);\n\n\talways @(*) begin\n\t\tout = '1;\n\t\tcase (sel)\n\t\t\t4'h0: out = a;\n\t\t\t4'h1: out = b;\n\t\t\t4'h2: out = c;\n\t\t\t4'h3: out = d;\n\t\t\t4'h4: out = e;\n\t\t\t4'h5: out = f;\n\t\t\t4'h6: out = g;\n\t\t\t4'h7: out = {8'h00, h[7:0]}; // Change: Output lower 8 bits of h\n\t\t\t4'h8: out = i;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [15:0] a,\n\tinput [15:0] b,\n\tinput [15:0] c,\n\tinput [15:0] d,\n\tinput [15:0] e,\n\tinput [15:0] f,\n\tinput [15:0] g,\n\tinput [15:0] h,\n\tinput [15:0] i,\n\tinput [3:0] sel,\n\toutput logic [15:0] out\n);\n\n\talways @(*) begin\n\t\tout = '1;\n\t\tcase (sel)\n\t\t\t4'h0: out = a;\n\t\t\t4'h1: out = b;\n\t\t\t4'h2: out = c;\n\t\t\t4'h3: out = d;\n\t\t\t4'h4: out = e;\n\t\t\t4'h5: out = f;\n\t\t\t4'h6: out = g;\n\t\t\t// 4'h7: out = h; // Change: Omitting case for sel=7, making it default to '1'\n\t\t\t4'h8: out = i;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [15:0] a,\n\tinput [15:0] b,\n\tinput [15:0] c,\n\tinput [15:0] d,\n\tinput [15:0] e,\n\tinput [15:0] f,\n\tinput [15:0] g,\n\tinput [15:0] h,\n\tinput [15:0] i,\n\tinput [3:0] sel,\n\toutput logic [15:0] out\n);\n\n\talways @(*) begin\n\t\tout = '1;\n\t\tcase (sel)\n\t\t\t4'h0: out = a;\n\t\t\t4'h1: out = b;\n\t\t\t4'h2: out = c;\n\t\t\t4'h3: out = d;\n\t\t\t4'h4: out = e;\n\t\t\t4'h5: out = f;\n\t\t\t4'h6: out = g;\n\t\t\t4'h7: out = h;\n\t\t\t4'h8: out = i;\n\t\t\t// Change: Adding an additional case, should not impact functionality as it's an unused case\n\t\t\t4'h9: out = '0; \n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [15:0] a,\n\tinput [15:0] b,\n\tinput [15:0] c,\n\tinput [15:0] d,\n\tinput [15:0] e,\n\tinput [15:0] f,\n\tinput [15:0] g,\n\tinput [15:0] h,\n\tinput [15:0] i,\n\tinput [3:0] sel,\n\toutput logic [15:0] out\n);\n\n\talways @(*) begin\n\t\tout = '1;\n\t\tcase (sel)\n\t\t\t4'h0: out = a;\n\t\t\t4'h1: out = b;\n\t\t\t4'h2: out = c;\n\t\t\t4'h3: out = d;\n\t\t\t4'h4: out = e;\n\t\t\t4'h5: out = f;\n\t\t\t4'h6: out = g;\n\t\t\t4'h7: out = h;\n\t\t\t4'h8: out = {i[7:0], i[15:8]}; // Change: Swap the bytes of i\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [15:0] a,\n\tinput [15:0] b,\n\tinput [15:0] c,\n\tinput [15:0] d,\n\tinput [15:0] e,\n\tinput [15:0] f,\n\tinput [15:0] g,\n\tinput [15:0] h,\n\tinput [15:0] i,\n\tinput [3:0] sel,\n\toutput logic [15:0] out\n);\n\n\talways @(*) begin\n\t\tout = '1;\n\t\tcase (sel)\n\t\t\t4'h0: out = a;\n\t\t\t4'h1: out = b;\n\t\t\t4'h2: out = c;\n\t\t\t4'h3: out = d;\n\t\t\t4'h4: out = e;\n\t\t\t4'h5: out = f;\n\t\t\t4'h6: out = {g[7:0], g[15:8]}; // Change: Swap the bytes of g\n\t\t\t4'h7: out = h;\n\t\t\t4'h8: out = i;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [15:0] a,\n\tinput [15:0] b,\n\tinput [15:0] c,\n\tinput [15:0] d,\n\tinput [15:0] e,\n\tinput [15:0] f,\n\tinput [15:0] g,\n\tinput [15:0] h,\n\tinput [15:0] i,\n\tinput [3:0] sel,\n\toutput logic [15:0] out\n);\n\n\talways @(*) begin\n\t\tout = '1;\n\t\tcase (sel)\n\t\t\t4'h0: out = a;\n\t\t\t4'h1: out = b;\n\t\t\t4'h2: out = c;\n\t\t\t4'h3: out = d;\n\t\t\t4'h4: out = e;\n\t\t\t4'h5: out = {16{f[0]}}; // Change: Propagate the LSB of f across all bits of out\n\t\t\t4'h6: out = g;\n\t\t\t4'h7: out = h;\n\t\t\t4'h8: out = i;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [15:0] a,\n\tinput [15:0] b,\n\tinput [15:0] c,\n\tinput [15:0] d,\n\tinput [15:0] e,\n\tinput [15:0] f,\n\tinput [15:0] g,\n\tinput [15:0] h,\n\tinput [15:0] i,\n\tinput [3:0] sel,\n\toutput logic [15:0] out\n);\n\n\talways @(*) begin\n\t\tout = '1;\n\t\tcase (sel)\n\t\t\t4'h0: out = {a[14:0], a[15]}; // Change: Rotate the bits of a to the right\n\t\t\t4'h1: out = b;\n\t\t\t4'h2: out = c;\n\t\t\t4'h3: out = d;\n\t\t\t4'h4: out = e;\n\t\t\t4'h5: out = f;\n\t\t\t4'h6: out = g;\n\t\t\t4'h7: out = h;\n\t\t\t4'h8: out = i;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [15:0] a,\n\tinput [15:0] b,\n\tinput [15:0] c,\n\tinput [15:0] d,\n\tinput [15:0] e,\n\tinput [15:0] f,\n\tinput [15:0] g,\n\tinput [15:0] h,\n\tinput [15:0] i,\n\tinput [3:0] sel,\n\toutput logic [15:0] out\n);\n\n\talways @(*) begin\n\t\tout = '1;\n\t\tcase (sel)\n\t\t\t4'h0: out = a;\n\t\t\t4'h1: out = b;\n\t\t\t4'h2: out = c;\n\t\t\t4'h3: out = d;\n\t\t\t4'h4: out = e;\n\t\t\t4'h5: out = f;\n\t\t\t4'h6: out = g;\n\t\t\t4'h7: out = h;\n\t\t\t4'h8: out = ~i; // Change: Invert all bits of i\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [15:0] a,\n\tinput [15:0] b,\n\tinput [15:0] c,\n\tinput [15:0] d,\n\tinput [15:0] e,\n\tinput [15:0] f,\n\tinput [15:0] g,\n\tinput [15:0] h,\n\tinput [15:0] i,\n\tinput [3:0] sel,\n\toutput logic [15:0] out\n);\n\n\talways @(*) begin\n\t\tout = '1;\n\t\tcase (sel)\n\t\t\t4'h0: out = a;\n\t\t\t4'h1: out = b;\n\t\t\t4'h2: out = c;\n\t\t\t4'h3: out = d;\n\t\t\t4'h4: out = e;\n\t\t\t4'h5: out = f;\n\t\t\t4'h6: out = g;\n\t\t\t4'h7: out = h;\n\t\t\t4'h8: out = i;\n\t\t\tdefault: out = 16'hFFFF; // Change: Explicitly define default case, technically redundant\n\t\tendcase\n\tend\n\t\nendmodule\n"]}
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{"task_id": "vectorgates", "mutants": ["module top_module(\n\tinput [2:0] a, \n\tinput [2:0] b, \n\toutput [2:0] out_or_bitwise,\n\toutput out_or_logical,\n\toutput [5:0] out_not\n);\n\t// Change: Modified bitwise OR to bitwise AND\n\tassign out_or_bitwise = a & b; // Change here\n\tassign out_or_logical = a || b;\n\tassign out_not = {~b,~a};\n\t\nendmodule\n", "module top_module(\n\tinput [2:0] a, \n\tinput [2:0] b, \n\toutput [2:0] out_or_bitwise,\n\toutput out_or_logical,\n\toutput [5:0] out_not\n);\n\tassign out_or_bitwise = a | b;\n\t// Change: Modified logical OR to logical AND\n\tassign out_or_logical = a && b; // Change here\n\tassign out_not = {~b,~a};\n\t\nendmodule\n", "module top_module(\n\tinput [2:0] a, \n\tinput [2:0] b, \n\toutput [2:0] out_or_bitwise,\n\toutput out_or_logical,\n\toutput [5:0] out_not\n);\n\tassign out_or_bitwise = a | b;\n\tassign out_or_logical = a || b;\n\t// Change: Inverted the ordering of NOT outputs\n\tassign out_not = {~a, ~b}; // Change here\n\t\nendmodule\n", "module top_module(\n\tinput [2:0] a, \n\tinput [2:0] b, \n\toutput [2:0] out_or_bitwise,\n\toutput out_or_logical,\n\toutput [5:0] out_not\n);\n\tassign out_or_bitwise = a | b;\n\tassign out_or_logical = a || b;\n\t// Change: Only taking inverse of a and ignoring b\n\tassign out_not = {3'b000, ~a}; // Change here\n\t\nendmodule\n", "module top_module(\n\tinput [2:0] a, \n\tinput [2:0] b, \n\toutput [2:0] out_or_bitwise,\n\toutput out_or_logical,\n\toutput [5:0] out_not\n);\n\tassign out_or_bitwise = a | b;\n\tassign out_or_logical = a || b;\n\t// Change: Only taking inverse of b and ignoring a\n\tassign out_not = {~b, 3'b000}; // Change here\n\t\nendmodule\n", "module top_module(\n\tinput [2:0] a, \n\tinput [2:0] b, \n\toutput [2:0] out_or_bitwise,\n\toutput out_or_logical,\n\toutput [5:0] out_not\n);\n\t// Change: Use XOR instead of OR for bitwise\n\tassign out_or_bitwise = a ^ b; // Change here\n\tassign out_or_logical = a || b;\n\tassign out_not = {~b,~a};\n\t\nendmodule\n", "module top_module(\n\tinput [2:0] a, \n\tinput [2:0] b, \n\toutput [2:0] out_or_bitwise,\n\toutput out_or_logical,\n\toutput [5:0] out_not\n);\n\t// Change: Use NOR instead of OR for bitwise\n\tassign out_or_bitwise = ~(a | b); // Change here\n\tassign out_or_logical = a || b;\n\tassign out_not = {~b,~a};\n\t\nendmodule\n", "module top_module(\n\tinput [2:0] a, \n\tinput [2:0] b, \n\toutput [2:0] out_or_bitwise,\n\toutput out_or_logical,\n\toutput [5:0] out_not\n);\n\tassign out_or_bitwise = a | b;\n\tassign out_or_logical = a || b;\n\t// Change: Apply inverse only to lower half of out_not\n\tassign out_not = {3'b111, ~a}; // Change here\n\t\nendmodule\n", "module top_module(\n\tinput [2:0] a, \n\tinput [2:0] b, \n\toutput [2:0] out_or_bitwise,\n\toutput out_or_logical,\n\toutput [5:0] out_not\n);\n\tassign out_or_bitwise = a | b;\n\t// Change: Logical OR is replaced with XNOR of a and not b\n\tassign out_or_logical = a ~^ ~b; // Change here\n\tassign out_not = {~b,~a};\n\t\nendmodule\n", "module top_module(\n\tinput [2:0] a, \n\tinput [2:0] b, \n\toutput [2:0] out_or_bitwise,\n\toutput out_or_logical,\n\toutput [5:0] out_not\n);\n\t// Change: Bitwise OR replaced with bitwise NAND\n\tassign out_or_bitwise = ~(a & b); // Change here\n\tassign out_or_logical = a || b;\n\tassign out_not = {~b,~a};\n\t\nendmodule\n"]}
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{"task_id": "fsm3onehot", "mutants": ["module top_module (\n input in,\n input [3:0] state,\n output reg [3:0] next_state,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n \n assign next_state[A] = (state[A] | state[C]) & ~in; // No change\n assign next_state[B] = (state[A] | state[B] | state[D]) & in; // No change\n assign next_state[C] = (state[B] & state[D]) & ~in; // Changed | to &\n assign next_state[D] = state[C] & in; // No change\n \n assign out = (state[D]); // No change\n \nendmodule\n", "module top_module (\n input in,\n input [3:0] state,\n output reg [3:0] next_state,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n \n assign next_state[A] = (state[A] | state[C]) & ~in; // No change\n assign next_state[B] = (state[A] | state[B] & state[D]) & in; // Changed | to &\n assign next_state[C] = (state[B] | state[D]) & ~in; // No change\n assign next_state[D] = state[C] & in; // No change\n \n assign out = (state[D]); // No change\n \nendmodule\n", "module top_module (\n input in,\n input [3:0] state,\n output reg [3:0] next_state,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n \n assign next_state[A] = (state[A] & state[C]) & ~in; // Changed | to &\n assign next_state[B] = (state[A] | state[B] | state[D]) & in; // No change\n assign next_state[C] = (state[B] | state[D]) & ~in; // No change\n assign next_state[D] = state[C] & in; // No change\n \n assign out = (state[D]); // No change\n \nendmodule\n", "module top_module (\n input in,\n input [3:0] state,\n output reg [3:0] next_state,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n \n assign next_state[A] = (state[A] | state[C]) & in; // Changed ~in to in\n assign next_state[B] = (state[A] | state[B] | state[D]) & in; // No change\n assign next_state[C] = (state[B] | state[D]) & ~in; // No change\n assign next_state[D] = state[C] & in; // No change\n \n assign out = (state[D]); // No change\n \nendmodule\n", "module top_module (\n input in,\n input [3:0] state,\n output reg [3:0] next_state,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n \n assign next_state[A] = (state[A] | state[C]) & ~in; // No change\n assign next_state[B] = (state[A] | state[B] | state[D]) & ~in; // Changed in to ~in\n assign next_state[C] = (state[B] | state[D]) & ~in; // No change\n assign next_state[D] = state[C] & in; // No change\n \n assign out = (state[D]); // No change\n \nendmodule\n", "module top_module (\n input in,\n input [3:0] state,\n output reg [3:0] next_state,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n \n assign next_state[A] = (state[A] | state[C]) & ~in; // No change\n assign next_state[B] = (state[A] | state[B] | state[D]) & in; // No change\n assign next_state[C] = (state[B] | state[D]) & in; // Changed ~in to in\n assign next_state[D] = state[C] & in; // No change\n \n assign out = (state[D]); // No change\n \nendmodule\n", "module top_module (\n input in,\n input [3:0] state,\n output reg [3:0] next_state,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n \n assign next_state[A] = (state[A] | state[C]) & ~in; // No change\n assign next_state[B] = (state[A] | state[B] | state[D]) & in; // No change\n assign next_state[C] = (state[B] | state[D]) & ~in; // No change\n assign next_state[D] = state[C] | in; // Changed & to |\n \n assign out = (state[D]); // No change\n \nendmodule\n", "module top_module (\n input in,\n input [3:0] state,\n output reg [3:0] next_state,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n \n assign next_state[A] = (state[A] | state[C]) & ~in; // No change\n assign next_state[B] = (state[A] & state[B] | state[D]) & in; // Changed | to &\n assign next_state[C] = (state[B] | state[D]) & ~in; // No change\n assign next_state[D] = state[C] & in; // No change\n \n assign out = (state[D]); // No change\n \nendmodule\n", "module top_module (\n input in,\n input [3:0] state,\n output reg [3:0] next_state,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n \n assign next_state[A] = (state[A] & state[C]) & ~in; // Changed | to &\n assign next_state[B] = (state[A] | state[B] | state[D]) & in; // No change\n assign next_state[C] = (state[B] & state[D]) & ~in; // Changed | to &\n assign next_state[D] = state[C] & in; // No change\n \n assign out = (state[D]); // No change\n \nendmodule\n", "module top_module (\n input in,\n input [3:0] state,\n output reg [3:0] next_state,\n output out\n);\n parameter A=0, B=1, C=2, D=3;\n \n assign next_state[A] = (state[A] | state[C]) & ~in; // No change\n assign next_state[B] = (state[A] | state[B]) & in; // Removed state[D] from condition\n assign next_state[C] = (state[B] | state[D]) & ~in; // No change\n assign next_state[D] = state[C] & in; // No change\n \n assign out = (state[D]); // No change\n \nendmodule\n"]}
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{"task_id": "conditional", "mutants": ["module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\tinput [7:0] c,\n\tinput [7:0] d,\n\toutput reg [7:0] min\n);\n\n\talways_comb begin\n\t\tmin = a;\n\t\tif (min >= b) min = b; // Change: > changed to >=\n\t\tif (min > c) min = c;\n\t\tif (min > d) min = d;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\tinput [7:0] c,\n\tinput [7:0] d,\n\toutput reg [7:0] min\n);\n\n\talways_comb begin\n\t\tmin = b; // Change: Initializing min with b instead of a\n\t\tif (min > a) min = a;\n\t\tif (min > c) min = c;\n\t\tif (min > d) min = d;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\tinput [7:0] c,\n\tinput [7:0] d,\n\toutput reg [7:0] min\n);\n\n\talways_comb begin\n\t\tmin = a;\n\t\tif (min > b) min = b;\n\t\tif (min > c) min = c;\n\t\t// Removed the last comparison\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\tinput [7:0] c,\n\tinput [7:0] d,\n\toutput reg [7:0] min\n);\n\n\talways_comb begin\n\t\tmin = a;\n\t\tif (min > b) min = b;\n\t\tif (min >= c) min = c; // Change: > changed to >=\n\t\tif (min > d) min = d;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\tinput [7:0] c,\n\tinput [7:0] d,\n\toutput reg [7:0] min\n);\n\n\talways_comb begin\n\t\tmin = a;\n\t\t// Removed b comparison\n\t\tif (min > c) min = c;\n\t\tif (min > d) min = d;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\tinput [7:0] c,\n\tinput [7:0] d,\n\toutput reg [7:0] min\n);\n\n\talways_comb begin\n\t\tmin = a;\n\t\tif (min > b) min = b;\n\t\t// Removed c comparison\n\t\tif (min > d) min = d;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\tinput [7:0] c,\n\tinput [7:0] d,\n\toutput reg [7:0] min\n);\n\n\talways_comb begin\n\t\tmin = a;\n\t\tif (min > b) min = b;\n\t\tif (min > c) min = c;\n\t\tif (min >= d) min = d; // Change: > changed to >=\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\tinput [7:0] c,\n\tinput [7:0] d,\n\toutput reg [7:0] min\n);\n\n\talways_comb begin\n\t\tmin = a;\n\t\tif (min < b) min = b; // Change: > changed to <\n\t\tif (min > c) min = c;\n\t\tif (min > d) min = d;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\tinput [7:0] c,\n\tinput [7:0] d,\n\toutput reg [7:0] min\n);\n\n\talways_comb begin\n\t\tmin = d; // Change: Initializing min with d instead of a\n\t\tif (min > a) min = a;\n\t\tif (min > b) min = b;\n\t\tif (min > c) min = c;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [7:0] a,\n\tinput [7:0] b,\n\tinput [7:0] c,\n\tinput [7:0] d,\n\toutput reg [7:0] min\n);\n\n\talways_comb begin\n\t\tmin = a;\n\t\tif (min > b) min = b;\n\t\tif (min > c) min = c;\n\t\tif (min > d) {min = d; min = min - 1;} // Change: Added a decrement of min after setting it to d\n\tend\n\t\nendmodule\n"]}
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{"task_id": "kmap2", "mutants": ["module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out\n);\n\t\n\tassign out = (~c & ~b) | (~d&~a) | (a&c&d) | (b&c&d); // Changed (~d&~a) to (~d&~b)\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out\n);\n\t\n\tassign out = (~c & ~b) | (~d&~a) | (a&c&d) | (b&c&~d); // Changed (b&c&d) to (b&c&~d)\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out\n);\n\t\n\tassign out = (~c & b) | (~d&~a) | (a&c&d) | (b&c&d); // Changed (~c & ~b) to (~c & b)\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out\n);\n\t\n\tassign out = (~c & ~b) | (d&~a) | (a&c&d) | (b&c&d); // Changed (~d&~a) to (d&~a)\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out\n);\n\t\n\tassign out = (~c & ~b) | (~d&~a) | (a&~c&d) | (b&c&d); // Changed (a&c&d) to (a&~c&d)\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out\n);\n\t\n\tassign out = (~c & ~b) | (~d&~a) | (a&c&d) | (~b&c&d); // Changed (b&c&d) to (~b&c&d)\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out\n);\n\t\n\tassign out = (~c & ~b) | (~d&a) | (a&c&d) | (b&c&d); // Changed (~d&~a) to (~d&a)\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out\n);\n\t\n\tassign out = (c & ~b) | (~d&~a) | (a&c&d) | (b&c&d); // Changed (~c & ~b) to (c & ~b)\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out\n);\n\t\n\tassign out = (~c & ~b) | (~d&~a) | (~a&c&d) | (b&c&d); // Changed (a&c&d) to (~a&c&d)\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b,\n\tinput c,\n\tinput d,\n\toutput out\n);\n\t\n\tassign out = (~c & ~b) | (~d&~a) | (a&c&d) | (b&~c&d); // Changed (b&c&d) to (b&~c&d)\nendmodule\n"]}
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{"task_id": "vector4", "mutants": ["module top_module (\n input [7:0] in,\n output [31:0] out\n);\n\n assign out = { {23{in[7]}}, in }; // Changed number of replicated bits from 24 to 23\n\nendmodule\n", "module top_module (\n input [7:0] in,\n output [31:0] out\n);\n\n assign out = { {25{in[7]}}, in[7:1] }; // Increased replication to 25 and used bits 7:1 of 'in'\n\nendmodule\n", "module top_module (\n input [7:0] in,\n output [31:0] out\n);\n\n assign out = { {24{in[6]}}, in }; // Replicating bit 6 instead of bit 7\n\nendmodule\n", "module top_module (\n input [7:0] in,\n output [31:0] out\n);\n\n assign out = { {24{!in[7]}}, in }; // Inverting the sign bit before replication\n\nendmodule\n", "module top_module (\n input [7:0] in,\n output [31:0] out\n);\n\n assign out = { {24{in[7]}}, in[7:0] }; // Explicitly specifying the range of 'in', no actual change in behavior\n\nendmodule\n", "module top_module (\n input [7:0] in,\n output [31:0] out\n);\n\n assign out = { {22{in[7]}}, in }; // Changed number of replicated bits from 24 to 22\n\nendmodule\n", "module top_module (\n input [7:0] in,\n output [31:0] out\n);\n\n assign out = { {24{in[7]}}, {4{in[7:6]}} }; // Added replication of bits 7:6 of 'in' four times at the end\n\nendmodule\n", "module top_module (\n input [7:0] in,\n output [31:0] out\n);\n\n assign out = { {24{in[0]}}, in }; // Replicating bit 0 instead of bit 7\n\nendmodule\n", "module top_module (\n input [7:0] in,\n output [31:0] out\n);\n\n assign out = { {24{in[7]}}, in[6:0], in[7] }; // Moved bit 7 to the end of 'in'\n\nendmodule\n", "module top_module (\n input [7:0] in,\n output [31:0] out\n);\n\n assign out = { {26{in[7]}}, in[7:2] }; // Increased replication to 26 and used bits 7:2 of 'in'\n\nendmodule\n"]}
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{"task_id": "m2014_q4i", "mutants": ["module top_module(\n output out);\n \n assign out = 1'b0; // No change here, demonstrating the correct original behavior\n\nendmodule\n// Note: This mutant is intentionally left unchanged as a control example.\n", "module top_module(\n output out);\n \n assign out = 1'b1; // Changed 0 to 1, altering the output value\n\nendmodule\n", "module top_module(\n output out);\n \n assign out = ~1'b0; // Added a bitwise NOT operator, which does not change the output logically but differs syntactically\n\nendmodule\n", "module top_module(\n output out);\n \n assign out = 1'b0 ^ 1'b1; // Added an XOR with 1, which changes the logic\n\nendmodule\n", "module top_module(\n output out);\n \n assign out = 1'b0 & 1'b1; // Changed logic to AND with 1, which won't change the output but alters the code\n\nendmodule\n", "module top_module(\n output out);\n \n assign out = 1'b0 | 1'b0; // Changed logic to OR with 0, which does not change the output but varies the structure\n\nendmodule\n", "module top_module(\n output out);\n \n assign out = !(1'b1); // Used logical NOT on 1, which gives 0 but changes the implementation\n\nendmodule\n", "module top_module(\n output out);\n \n assign out = 1'bz; // Changed output to high impedance state 'z', differing in behavior\n\nendmodule\n", "module top_module(\n output out);\n \n assign out = 1'b0 ? 1'b0 : 1'b1; // Introduced a conditional operation that results in 0\n\nendmodule\n", "module top_module(\n output out);\n \n assign out = 0; // Simplified the assignment to 0 without specifying bit width\n\nendmodule\n"]}
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{"task_id": "step_one", "mutants": ["module top_module(\n\toutput one);\n\t\n\tassign one = 1'b0; // Changed 1'b1 to 1'b0, so the output always drives 0 (logic low)\n\nendmodule\n", "module top_module(\n\toutput one);\n\t\n\tassign one = ~1'b0; // Used bitwise NOT operator, result is still 1'b1 but expressed differently\n\nendmodule\n", "module top_module(\n\toutput one);\n\t\n\treg one_reg; // Introduced a reg type\n\talways @(*) one_reg = 1'b1; // Always block to assign the value\n\tassign one = one_reg; // Output driven by reg\n\nendmodule\n", "module top_module(\n\toutput one);\n\t\n\tassign one = 1'b1 ^ 1'b1; // Changed to XOR operation with itself, resulting in 0\n\nendmodule\n", "module top_module(\n\toutput one);\n\t\n\tassign one = 1'b1 | 1'b0; // Changed to OR operation with logic low, no change in functionality\n\nendmodule\n", "module top_module(\n\toutput one);\n\t\n\tassign one = 1'b1 & 1'b1; // Changed to AND operation, no change in functionality\n\nendmodule\n", "module top_module(\n\toutput one);\n\t\n\tassign one = 1'b1 ^ 1'b0; // Changed to XOR operation with logic low, effectively the same\n\nendmodule\n", "module top_module(\n\toutput one);\n\t\n\tassign one = !(1'b0); // Changed to logical NOT operation on logic low, same as original functionality\n\nendmodule\n", "module top_module(\n\toutput one);\n\t\n\tassign one = 1'b1 - 1'b0; // Subtraction operation, result is 1, minor change in expression\n\nendmodule\n", "module top_module(\n\toutput one);\n\t\n\tassign one = 1'b1 ? 1'b1 : 1'b0; // Ternary operation, if 1 then 1 else 0, unchanged functionality but different syntax\n\nendmodule\n"]}
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{"task_id": "vector100r", "mutants": ["module top_module (\n\tinput [99:0] in,\n\toutput reg [99:0] out\n);\n\t\n\talways_comb \n\t\tfor (int i=0;i<$bits(out);i++) // Change: modified the loop condition to run one less iteration\n\t\t\tout[i] = in[$bits(out)-i-2]; // This also shifts the bit assignment by one, creating a different output\n\t\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput reg [99:0] out\n);\n\t\n\talways_comb \n\t\tfor (int i=1;i<=$bits(out);i++) // Change: starting the loop from 1 instead of 0\n\t\t\tout[i-1] = in[$bits(out)-i]; // Adjusted indexing to accommodate loop change\n\t\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput reg [99:0] out\n);\n\t\n\talways_comb \n\t\tfor (int i=0;i<$bits(out);i++)\n\t\t\tout[i] = in[$bits(out)-i-1] ^ 1'b1; // Change: XOR each bit with 1, flipping bits\n\t\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput reg [99:0] out\n);\n\t\n\talways_comb \n\t\tfor (int i=0;i<$bits(out)-1;i++) // Change: Stop the loop one iteration early\n\t\t\tout[i] = in[$bits(out)-i-1];\n\t\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput reg [99:0] out\n);\n\t\n\talways_comb \n\t\tfor (int i=0;i<$bits(out);i++)\n\t\t\tout[i] = in[$bits(out)-i-1];\n\t\t\tout[99] = in[0]; // Change: Explicitly set the last bit to the first bit of input, redundant but different\n\t\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput reg [99:0] out\n);\n\t\n\talways_comb\n\t\tfor (int i=0;i<$bits(out);i++)\n\t\t\tout[i] = in[$bits(out)-i]; // Change: Removed the -1, causing index out of bounds for in[]\n\t\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput reg [99:0] out\n);\n\t\n\talways_comb \n\t\tfor (int i=0;i<$bits(out);i++)\n\t\t\tout[i] = !in[$bits(out)-i-1]; // Change: Used logical NOT instead of bitwise, flipping bits\n\t\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput reg [99:0] out\n);\n\t\n\t// Change: Added a temporary variable to add an unnecessary step\n\treg temp;\n\talways_comb \n\t\tfor (int i=0;i<$bits(out);i++) {\n\t\t\ttemp = in[$bits(out)-i-1];\n\t\t\tout[i] = temp;\n\t\t}\n\t\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput reg [99:0] out\n);\n\t\n\talways_comb \n\t\tfor (int i=0;i<$bits(out);i+=2) // Change: Increment i by 2, skipping every other bit\n\t\t\tout[i] = in[$bits(out)-i-1];\n\t\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput reg [99:0] out\n);\n\t\n\talways_comb \n\t\tfor (int i=0;i<$bits(out);i++)\n\t\t\tout[i] = in[99-i]; // Change: Directly used 99 instead of calculating $bits(out)-i-1\n\t\nendmodule\n"]}
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{"task_id": "truthtable1", "mutants": ["module top_module (\n\tinput x3,\n\tinput x2,\n\tinput x1,\n\toutput f\n);\n\t\n\tassign f = ( ~x3 & x2 & ~x1 ) | // Change: No change, to demonstrate original logic for reference.\n\t\t\t\t( ~x3 & x2 & x1 ) |\n\t\t\t\t( x3 & ~x2 & x1 ) |\n\t\t\t\t( x3 & x2 & x1 ) ;\n\t\nendmodule\n", "module top_module (\n\tinput x3,\n\tinput x2,\n\tinput x1,\n\toutput f\n);\n\t\n\tassign f = ( ~x3 & x2 & ~x1 ) | // Change: No change.\n\t\t\t\t( ~x3 & x2 ) | // Change: Removed & x1\n\t\t\t\t( x3 & ~x2 & x1 ) |\n\t\t\t\t( x3 & x2 & x1 ) ;\n\t\nendmodule\n", "module top_module (\n\tinput x3,\n\tinput x2,\n\tinput x1,\n\toutput f\n);\n\t\n\tassign f = ( x3 & x2 & ~x1 ) | // Change: Changed ~x3 to x3.\n\t\t\t\t( ~x3 & x2 & x1 ) |\n\t\t\t\t( x3 & ~x2 & x1 ) |\n\t\t\t\t( x3 & x2 & x1 ) ;\n\t\nendmodule\n", "module top_module (\n\tinput x3,\n\tinput x2,\n\tinput x1,\n\toutput f\n);\n\t\n\tassign f = ( ~x3 & x2 & ~x1 ) | \n\t\t\t\t( ~x3 & x2 & x1 ) |\n\t\t\t\t( x3 & x2 & x1 ) | // Change: Removed ~x2 & \n\t\t\t\t( x3 & x2 & x1 ) ; // Repetition for emphasis, logically no change but syntactically a mutant.\n\t\nendmodule\n", "module top_module (\n\tinput x3,\n\tinput x2,\n\tinput x1,\n\toutput f\n);\n\t\n\tassign f = ( ~x3 & x2 & ~x1 ) | \n\t\t\t\t( ~x3 & x2 & x1 ) |\n\t\t\t\t( ~x3 & ~x2 & x1 ) | // Change: Changed x3 to ~x3 and x2 to ~x2.\n\t\t\t\t( x3 & x2 & x1 ) ;\n\t\nendmodule\n", "module top_module (\n\tinput x3,\n\tinput x2,\n\tinput x1,\n\toutput f\n);\n\tassign f = ( ~x3 & x2 & ~x1 ) | \n\t\t\t\t( ~x3 & x2 ) | // Change: Removed & x1 similar to mutant 2 but documenting as a separate change.\n\t\t\t\t( x3 & x2 & x1 ) | // Removed one condition, making it a different logical operation.\n\t\t\t\t( x3 & x2 & x1 ) ;\n\t\nendmodule\n", "module top_module (\n\tinput x3,\n\tinput x2,\n\tinput x1,\n\toutput f\n);\n\t\n\tassign f = ( ~x3 & x2 & ~x1 ) | \n\t\t\t\t( x3 & x2 & x1 ) | // Change: Removed one of the middle conditions, altering the logic.\n\t\t\t\t( x3 & x2 & x1 ) ; // Repeated the last condition for effect.\n\t\nendmodule\n", "module top_module (\n\tinput x3,\n\tinput x2,\n\tinput x1,\n\toutput f\n);\n\t\n\tassign f = ( ~x3 & x2 & ~x1 ) | \n\t\t\t\t( ~x3 & x2 & ~x1 ) | // Change: Repeated first condition instead of second, minor logical redundancy.\n\t\t\t\t( x3 & ~x2 & x1 ) |\n\t\t\t\t( x3 & x2 & x1 ) ;\n\t\nendmodule\n", "module top_module (\n\tinput x3,\n\tinput x2,\n\tinput x1,\n\toutput f\n);\n\t\n\tassign f = ( ~x3 & x2 ) | // Change: Removed & ~x1, simplifying expression.\n\t\t\t\t( ~x3 & x2 & x1 ) |\n\t\t\t\t( x3 & ~x2 & x1 ) |\n\t\t\t\t( x3 & x2 & x1 ) ;\n\t\nendmodule\n", "module top_module (\n\tinput x3,\n\tinput x2,\n\tinput x1,\n\toutput f\n);\n\t\n\tassign f = ( ~x3 & x2 & ~x1 ) | \n\t\t\t\t( ~x3 & x2 & x1 ) |\n\t\t\t\t( x3 & ~x2 ) | // Change: Removed & x1, altering logic.\n\t\t\t\t( x3 & x2 & x1 ) ;\n\t\nendmodule\n"]}
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{"task_id": "gates100", "mutants": ["module top_module (\n\tinput [99:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = ∈ // No change\n\tassign out_or = |in; // No change\n\tassign out_xor = ~^in; // Change: Negated the XOR output\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = &in[99:1]; // Change: AND operation from bits 99 to 1, excluding bit 0\n\tassign out_or = |in;\n\tassign out_xor = ^in;\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = ∈\n\tassign out_or = |in[98:0]; // Change: OR operation from bits 98 to 0, excluding bit 99\n\tassign out_xor = ^in;\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = ∈\n\tassign out_or = |in;\n\tassign out_xor = ^in[99:1]; // Change: XOR operation from bits 99 to 1, excluding bit 0\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = &{in[99:50],in[49:0]}; // Change: Explicit concatenation of the same input, no effective change in logic\n\tassign out_or = |in;\n\tassign out_xor = ^in;\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = ∈ // No change\n\tassign out_or = |in; // No change\n\t// Change: Reversed XOR operation by inverting inputs then XOR them\n\tassign out_xor = ^~in;\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = &(in | 1'b0); // Change: OR operation with constant zero before AND, no effective change\n\tassign out_or = |in;\n\tassign out_xor = ^in;\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = ∈\n\tassign out_or = |in;\n\t// Change: XOR operation with an additional XOR with a constant zero\n\tassign out_xor = ^in ^ 1'b0;\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\tassign out_and = ∈ // No change\n\t// Change: Inverted the OR output\n\tassign out_or = ~|in;\n\tassign out_xor = ^in;\nendmodule\n", "module top_module (\n\tinput [99:0] in,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor\n);\n\n\t// Change: AND operation with constant 1 before AND, no effective change\n\tassign out_and = &in & 1'b1;\n\tassign out_or = |in;\n\tassign out_xor = ^in;\nendmodule\n"]}
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{"task_id": "hadd", "mutants": ["module top_module (\n\tinput a,\n\tinput b,\n\toutput sum,\n\toutput cout\n);\n\n\tassign {cout, sum} = a-b; // Change: Subtraction instead of addition\n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\toutput sum,\n\toutput cout\n);\n\n\tassign {cout, sum} = a&b; // Change: AND operation instead of addition\n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\toutput sum,\n\toutput cout\n);\n\n\tassign {cout, sum} = a|b; // Change: OR operation instead of addition\n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\toutput sum,\n\toutput cout\n);\n\n\tassign {cout, sum} = a^b; // Change: XOR operation instead of addition\n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\toutput sum,\n\toutput cout\n);\n\n\tassign {cout, sum} = {a+b, a+b}; // Change: Duplicate sum for cout and sum\n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\toutput sum,\n\toutput cout\n);\n\n\tassign cout = a+b; // Change: Only assign cout, remove sum assignment\n\tassign sum = a^b; // Additional: Exclusive OR for sum\n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\toutput sum,\n\toutput cout\n);\n\n\t// Change: Swapped the order of cout and sum in the concatenation\n\tassign {sum, cout} = a+b; \n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\toutput sum,\n\toutput cout\n);\n\n\tassign {cout, sum} = {1'b0, a+b}; // Change: Forced cout to be 0, only sum is calculated\n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\toutput sum,\n\toutput cout\n);\n\n\t// Change: Added an inverter to the sum output\n\tassign {cout, sum} = ~(a+b);\n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\toutput sum,\n\toutput cout\n);\n\n\tassign {cout, sum} = (a+b) << 1; // Change: Left shift the result by 1\n\nendmodule\n"]}
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{"task_id": "always_if2", "mutants": ["module top_module (\n\tinput cpu_overheated,\n\toutput reg shut_off_computer,\n\tinput arrived,\n\tinput gas_tank_empty,\n\toutput reg keep_driving\n);\n\n\talways @(*) begin\n\t\tif (cpu_overheated)\n\t\t\tshut_off_computer = 1'b1; // Changed 1 to 1'b1 for clarity\n\t\telse\n\t\t\tshut_off_computer = 0;\n\tend\n\t\n\talways @(*) begin\n\t\tif (~arrived)\n\t\t\tkeep_driving = !gas_tank_empty;\n\t\telse\n\t\t\tkeep_driving = 1'b0;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput cpu_overheated,\n\toutput reg shut_off_computer,\n\tinput arrived,\n\tinput gas_tank_empty,\n\toutput reg keep_driving\n);\n\n\talways @(*) begin\n\t\tif (cpu_overheated)\n\t\t\tshut_off_computer = 1;\n\t\telse\n\t\t\tshut_off_computer = 1'b0; // Changed 0 to 1'b0 for clarity\n\tend\n\t\n\talways @(*) begin\n\t\tif (~arrived)\n\t\t\tkeep_driving = !gas_tank_empty;\n\t\telse\n\t\t\tkeep_driving = 1'b0;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput cpu_overheated,\n\toutput reg shut_off_computer,\n\tinput arrived,\n\tinput gas_tank_empty,\n\toutput reg keep_driving\n);\n\n\talways @(*) begin\n\t\tif (cpu_overheated)\n\t\t\tshut_off_computer = 1;\n\t\telse\n\t\t\tshut_off_computer = 0; // No change here for reference\n\tend\n\t\n\talways @(*) begin\n\t\tif (~arrived)\n\t\t\tkeep_driving = !gas_tank_empty;\n\t\telse\n\t\t\tkeep_driving = 1; // Changed 1'b0 to 1 for a minor difference\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput cpu_overheated,\n\toutput reg shut_off_computer,\n\tinput arrived,\n\tinput gas_tank_empty,\n\toutput reg keep_driving\n);\n\n\talways @(*) begin\n\t\tif (cpu_overheated)\n\t\t\tshut_off_computer = 1;\n\t\telse\n\t\t\tshut_off_computer = 0;\n\tend\n\t\n\talways @(*) begin\n\t\tif (~arrived)\n\t\t\tkeep_driving = ~gas_tank_empty; // Changed !gas_tank_empty to ~gas_tank_empty for a minor difference\n\t\telse\n\t\t\tkeep_driving = 1'b0;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput cpu_overheated,\n\toutput reg shut_off_computer,\n\tinput arrived,\n\tinput gas_tank_empty,\n\toutput reg keep_driving\n);\n\n\talways @(*) begin\n\t\tif (cpu_overheated)\n\t\t\tshut_off_computer = 0; // Changed action when cpu_overheated to 0\n\t\telse\n\t\t\tshut_off_computer = 0;\n\tend\n\t\n\talways @(*) begin\n\t\tif (~arrived)\n\t\t\tkeep_driving = !gas_tank_empty;\n\t\telse\n\t\t\tkeep_driving = 1'b0;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput cpu_overheated,\n\toutput reg shut_off_computer,\n\tinput arrived,\n\tinput gas_tank_empty,\n\toutput reg keep_driving\n);\n\n\talways @(*) begin\n\t\tif (cpu_overheated)\n\t\t\tshut_off_computer = 1;\n\t\telse\n\t\t\tshut_off_computer = 1; // Changed else behavior to also set shut_off_computer to 1\n\tend\n\t\n\talways @(*) begin\n\t\tif (~arrived)\n\t\t\tkeep_driving = !gas_tank_empty;\n\t\telse\n\t\t\tkeep_driving = 1'b0;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput cpu_overheated,\n\toutput reg shut_off_computer,\n\tinput arrived,\n\tinput gas_tank_empty,\n\toutput reg keep_driving\n);\n\n\talways @(*) begin\n\t\tif (cpu_overheated)\n\t\t\tshut_off_computer = 1;\n\t\telse\n\t\t\tshut_off_computer = 0;\n\tend\n\t\n\talways @(*) begin\n\t\tif (~arrived)\n\t\t\tkeep_driving = !gas_tank_empty;\n\t\telse\n\t\t\tkeep_driving = 1'b1; // Changed keep_driving to 1'b1 when arrived\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput cpu_overheated,\n\toutput reg shut_off_computer,\n\tinput arrived,\n\tinput gas_tank_empty,\n\toutput reg keep_driving\n);\n\n\talways @(*) begin\n\t\tif (cpu_overheated)\n\t\t\tshut_off_computer = 1;\n\t\telse\n\t\t\tshut_off_computer = 0;\n\tend\n\t\n\talways @(*) begin\n\t\tif (arrived) // Changed condition to if arrived instead of if ~arrived\n\t\t\tkeep_driving = 1'b0;\n\t\telse\n\t\t\tkeep_driving = !gas_tank_empty;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput cpu_overheated,\n\toutput reg shut_off_computer,\n\tinput arrived,\n\tinput gas_tank_empty,\n\toutput reg keep_driving\n);\n\n\talways @(*) begin\n\t\tif (cpu_overheated)\n\t\t\tshut_off_computer = 1;\n\t\telse\n\t\t\tshut_off_computer = 1'b1; // Changed else case to set shut_off_computer to 1'b1, creating logical error\n\tend\n\t\n\talways @(*) begin\n\t\tif (~arrived)\n\t\t\tkeep_driving = !gas_tank_empty;\n\t\telse\n\t\t\tkeep_driving = 1'b0;\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput cpu_overheated,\n\toutput reg shut_off_computer,\n\tinput arrived,\n\tinput gas_tank_empty,\n\toutput reg keep_driving\n);\n\n\talways @(*) begin\n\t\tif (cpu_overheated)\n\t\t\tshut_off_computer = 1'b0; // Introducing a logical error by setting shut_off_computer to 0 when overheated\n\t\telse\n\t\t\tshut_off_computer = 0;\n\tend\n\t\n\talways @(*) begin\n\t\tif (~arrived)\n\t\t\tkeep_driving = !gas_tank_empty;\n\t\telse\n\t\t\tkeep_driving = 1'b0;\n\tend\n\t\nendmodule\n"]}
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{"task_id": "vector3", "mutants": ["module top_module (\n\tinput [4:0] a,\n\tinput [4:0] b,\n\tinput [4:0] c,\n\tinput [4:0] d,\n\tinput [4:0] e,\n\tinput [4:0] f,\n\toutput [7:0] w,\n\toutput [7:8] x, // Change: Mistyped bit range for x\n\toutput [7:0] y,\n\toutput [7:0] z\n);\n\n\tassign { w,x,y,z} = {a,b,c,d,e,f,2'b11};\n\t\nendmodule\n", "module top_module (\n\tinput [4:0] a,\n\tinput [4:0] b,\n\tinput [4:0] c,\n\tinput [4:0] d,\n\tinput [4:0] e,\n\tinput [4:0] f,\n\toutput [7:0] w,\n\toutput [7:0] x,\n\toutput [6:0] y, // Change: Reduced bit width of y\n\toutput [7:0] z\n);\n\n\tassign { w,x,y,z} = {a,b,c,d,e,f,2'b11};\n\t\nendmodule\n", "module top_module (\n\tinput [4:0] a,\n\tinput [4:0] b,\n\tinput [4:0] c,\n\tinput [4:0] d,\n\tinput [4:0] e,\n\tinput [4:0] f,\n\toutput [7:0] w,\n\toutput [7:0] x,\n\toutput [7:0] y,\n\toutput [7:0] z\n);\n\n\tassign { w,x,y,z } = {a,b,c,d,e,f,2'b00}; // Change: 2'b11 changed to 2'b00\nendmodule\n", "module top_module (\n\tinput [4:0] a,\n\tinput [4:0] b,\n\tinput [4:0] c,\n\tinput [4:0] d,\n\tinput [4:0] e,\n\tinput [4:0] f,\n\toutput [7:0] w,\n\toutput [7:0] x,\n\toutput [7:0] y,\n\toutput [7:0] z\n);\n\n\tassign { w,x,y,z} = {a,b,c,d,f,e,2'b11}; // Change: Swapped e and f\nendmodule\n", "module top_module (\n\tinput [4:0] a,\n\tinput [4:0] b,\n\tinput [4:0] c,\n\tinput [4:0] d,\n\tinput [4:0] e,\n\tinput [4:0] f,\n\toutput [7:0] w,\n\toutput [7:0] x,\n\toutput [7:0] y,\n\toutput [7:0] z\n);\n\n\tassign { w,x,y,z} = {a,c,b,d,e,f,2'b11}; // Change: Swapped b and c\nendmodule\n", "module top_module (\n\tinput [4:0] a,\n\tinput [4:0] b,\n\tinput [4:0] c,\n\tinput [4:0] d,\n\tinput [4:0] e,\n\tinput [4:0] f,\n\toutput [7:0] w,\n\toutput [7:0] x,\n\toutput [7:0] y,\n\toutput [7:0] z\n);\n\n\tassign { x,w,y,z} = {a,b,c,d,e,f,2'b11}; // Change: Swapped w and x in the assign statement\nendmodule\n", "module top_module (\n\tinput [4:0] a,\n\tinput [4:0] b,\n\tinput [4:0] c,\n\tinput [4:0] d,\n\tinput [4:0] e,\n\tinput [4:0] f,\n\toutput [7:0] w,\n\toutput [7:0] x,\n\toutput [7:0] y,\n\toutput [7:0] z\n);\n\n\tassign { w,x,y,z} = {a,b,c,d,e,f,2'b10}; // Change: Changed the last 2'b11 to 2'b10\nendmodule\n", "module top_module (\n\tinput [4:0] a,\n\tinput [4:0] b,\n\tinput [4:0] c,\n\tinput [4:0] d,\n\tinput [4:0] e,\n\tinput [4:0] f,\n\toutput [7:0] w,\n\toutput [7:0] x,\n\toutput [7:0] y,\n\toutput [7:0] z\n);\n\n\tassign { w,x,y,z} = {b,a,c,d,e,f,2'b11}; // Change: Swapped a and b\nendmodule\n", "module top_module (\n\tinput [4:0] a,\n\tinput [4:0] b,\n\tinput [4:0] c,\n\tinput [4:0] d,\n\tinput [4:0] e,\n\tinput [4:0] f,\n\toutput [7:0] w,\n\toutput [7:0] x,\n\toutput [7:0] y,\n\toutput [7:0] z\n);\n\n\tassign { w,x,y,z} = {a,b,d,c,e,f,2'b11}; // Change: Swapped c and d\nendmodule\n", "module top_module (\n\tinput [4:0] a,\n\tinput [4:0] b,\n\tinput [4:0] c,\n\tinput [4:0] d,\n\tinput [4:0] e,\n\tinput [4:0] f,\n\toutput [7:0] w,\n\toutput [7:0] x,\n\toutput [7:0] y,\n\toutput [7:0] z\n);\n\n\tassign { w,x,y,z} = {a,b,c,e,d,f,2'b11}; // Change: Swapped d and e\nendmodule\n"]}
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{"task_id": "circuit2", "mutants": ["module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = ~a^b^c^~d; // Changed d to ~d\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = a^b^c^d; // Removed the negation of a\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = ~a^~b^c^d; // Negated b instead of only a\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = ~a^b^~c^d; // Negated c\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = ~a^b^c&d; // Changed XOR of c and d to AND\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = ~a^b|c^d; // Changed XOR of b and c to OR\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = ~a^b^c^(d&c); // Changed d to d&c\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = ~a^b^c^d^a; // Added a at the end\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = (~a^b^c^d); // Added parentheses for clarity, minor change in formatting\nendmodule\n", "module top_module (\n\tinput a, \n\tinput b, \n\tinput c, \n\tinput d,\n\toutput q\n);\n\n\tassign q = ~a&b^c^d; // Changed XOR of a and b to AND\nendmodule\n"]}
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{"task_id": "andgate", "mutants": ["module top_module(\n input a, \n input b,\n output out\n);\n \n assign out = a | b; // Changed & to | to create an OR gate instead of an AND gate\n \nendmodule\n", "module top_module(\n input a, \n input b,\n output out\n);\n \n assign out = a ^ b; // Changed & to ^ to create an XOR gate\n \nendmodule\n", "module top_module(\n input a, \n input b,\n output out\n);\n \n assign out = ~(a & b); // Added ~ operator to invert the AND gate result\n \nendmodule\n", "module top_module(\n input a, \n input b,\n output out\n);\n \n assign out = a & ~b; // Inverted input b\n \nendmodule\n", "module top_module(\n input a, \n input b,\n output out\n);\n \n assign out = ~a & b; // Inverted input a\n \nendmodule\n", "module top_module(\n input a, \n input b,\n output out\n);\n \n assign out = a && b; // Changed bitwise AND to logical AND (though in Verilog, this is typically the same for single-bit inputs)\n \nendmodule\n", "module top_module(\n input a, \n input b,\n output out\n);\n \n assign out = (a & b) | (a & b); // Redundantly OR'ed the AND gate with itself\n \nendmodule\n", "module top_module(\n input a, \n input b,\n output out\n);\n \n assign out = (a & a) & (b & b); // Used each input twice redundantly\n \nendmodule\n", "module top_module(\n input a, \n input b,\n output out\n);\n \n assign out = !a & b; // Used logical NOT on a instead of bitwise NOT\n \nendmodule\n", "module top_module(\n input a, \n input b,\n output out\n);\n \n assign out = a & b & b; // Added an extra b input to the AND gate\n \nendmodule\n"]}
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{"task_id": "m2014_q4g", "mutants": ["module top_module (\n\tinput in1,\n\tinput in2,\n\tinput in3,\n\toutput logic out\n);\n\n\tassign out = (in1 ^ in2) ^ in3; // Changed ~() to ()\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\tinput in3,\n\toutput logic out\n);\n\n\tassign out = ~((in1 ^ in2) ^ in3); // Added ~ outside the expression\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\tinput in3,\n\toutput logic out\n);\n\n\tassign out = (~(in1 ^ in2)) ^ ~in3; // Changed in3 to ~in3\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\tinput in3,\n\toutput logic out\n);\n\n\tassign out = (~(in1 ~^ in2)) ^ in3; // Changed ^ to ~^ for in1 and in2\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\tinput in3,\n\toutput logic out\n);\n\n\tassign out = (~(in1 ^ in2)) ~^ in3; // Changed ^ to ~^ for the final operation\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\tinput in3,\n\toutput logic out\n);\n\n\tassign out = (~(in1 | in2)) ^ in3; // Changed ^ to | between in1 and in2\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\tinput in3,\n\toutput logic out\n);\n\n\tassign out = (~(in1 & in2)) ^ in3; // Changed ^ to & between in1 and in2\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\tinput in3,\n\toutput logic out\n);\n\n\tassign out = ((in1 ^ in2) ^ in3); // Removed one layer of ~()\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\tinput in3,\n\toutput logic out\n);\n\n\tassign out = (~(in1 ^ in2)) ^ !in3; // Changed in3 to !in3\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\tinput in3,\n\toutput logic out\n);\n\n\tassign out = (~(in1 ^ in2)) ^ (in3 & in3); // Changed in3 to (in3 & in3)\nendmodule\n"]}
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{"task_id": "ece241_2014_q3", "mutants": ["module top_module (\n\tinput c,\n\tinput d,\n\toutput [3:0] mux_in\n);\n\t\n\tassign mux_in[0] = c & d; // Changed | to &\n\tassign mux_in[1] = 0;\n\tassign mux_in[2] = ~d;\t\n\tassign mux_in[3] = c&d;\n\t\nendmodule\n", "module top_module (\n\tinput c,\n\tinput d,\n\toutput [3:0] mux_in\n);\n\t\n\tassign mux_in[0] = c | d;\n\tassign mux_in[1] = 1; // Changed 0 to 1\n\tassign mux_in[2] = ~d;\t\n\tassign mux_in[3] = c&d;\n\t\nendmodule\n", "module top_module (\n\tinput c,\n\tinput d,\n\toutput [3:0] mux_in\n);\n\t\n\tassign mux_in[0] = c | d;\n\tassign mux_in[1] = 0;\n\tassign mux_in[2] = d; // Removed ~\n\tassign mux_in[3] = c&d;\n\t\nendmodule\n", "module top_module (\n\tinput c,\n\tinput d,\n\toutput [3:0] mux_in\n);\n\t\n\tassign mux_in[0] = c | d;\n\tassign mux_in[1] = 0;\n\tassign mux_in[2] = ~d;\t\n\tassign mux_in[3] = c|d; // Changed & to |\n\t\nendmodule\n", "module top_module (\n\tinput c,\n\tinput d,\n\toutput [3:0] mux_in\n);\n\t\n\tassign mux_in[0] = ~c | d; // Added ~ to c\n\tassign mux_in[1] = 0;\n\tassign mux_in[2] = ~d;\t\n\tassign mux_in[3] = c&d;\n\t\nendmodule\n", "module top_module (\n\tinput c,\n\tinput d,\n\toutput [3:0] mux_in\n);\n\t\n\tassign mux_in[0] = c | d;\n\tassign mux_in[1] = ~(c | d); // Added ~(c | d)\n\tassign mux_in[2] = ~d;\t\n\tassign mux_in[3] = c&d;\n\t\nendmodule\n", "module top_module (\n\tinput c,\n\tinput d,\n\toutput [3:0] mux_in\n);\n\t\n\tassign mux_in[0] = c | d;\n\tassign mux_in[1] = 0;\n\tassign mux_in[2] = ~c;\t// Changed ~d to ~c\n\tassign mux_in[3] = c&d;\n\t\nendmodule\n", "module top_module (\n\tinput c,\n\tinput d,\n\toutput [3:0] mux_in\n);\n\t\n\tassign mux_in[0] = c; // Removed | d\n\tassign mux_in[1] = 0;\n\tassign mux_in[2] = ~d;\t\n\tassign mux_in[3] = c&d;\n\t\nendmodule\n", "module top_module (\n\tinput c,\n\tinput d,\n\toutput [3:0] mux_in\n);\n\t\n\tassign mux_in[0] = d; // Removed c |\n\tassign mux_in[1] = 0;\n\tassign mux_in[2] = ~d;\t\n\tassign mux_in[3] = c&d;\n\t\nendmodule\n", "module top_module (\n\tinput c,\n\tinput d,\n\toutput [3:0] mux_in\n);\n\t\n\tassign mux_in[0] = c | d;\n\tassign mux_in[1] = 0;\n\tassign mux_in[2] = ~d;\t\n\tassign mux_in[3] = !(c|d); // Changed c&d to !(c|d)\n\t\nendmodule\n"]}
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{"task_id": "2012_q1g", "mutants": ["module top_module (\n\tinput [4:1] x,\n\toutput logic f\n);\n\n\talways_comb begin\n\t\tcase (x) \n\t\t\t4'h0: f = 1;\n\t\t\t4'h1: f = 1;\n\t\t\t4'h2: f = 0;\n\t\t\t4'h3: f = 0;\n\t\t\t4'h4: f = 1;\n\t\t\t4'h5: f = 1;\n\t\t\t4'h6: f = 1;\n\t\t\t4'h7: f = 0;\n\t\t\t4'h8: f = 0;\n\t\t\t4'h9: f = 0; // Change: Original was \"4'h9: f = 0;\"\n\t\t\t4'ha: f = 1; // Mutant: Changed \"f = 0\" to \"f = 1\"\n\t\t\t4'hb: f = 0;\n\t\t\t4'hc: f = 1;\n\t\t\t4'hd: f = 0;\n\t\t\t4'he: f = 1;\n\t\t\t4'hf: f = 1;\n\t\tendcase\n\tend\n\nendmodule\n", "module top_module (\n\tinput [4:1] x,\n\toutput logic f\n);\n\n\talways_comb begin\n\t\tcase (x) \n\t\t\t4'h0: f = 1;\n\t\t\t4'h1: f = 0; // Mutant: Changed \"f = 1\" to \"f = 0\"\n\t\t\t4'h2: f = 0;\n\t\t\t4'h3: f = 0;\n\t\t\t4'h4: f = 1;\n\t\t\t4'h5: f = 1;\n\t\t\t4'h6: f = 1;\n\t\t\t4'h7: f = 0;\n\t\t\t4'h8: f = 0;\n\t\t\t4'h9: f = 0;\n\t\t\t4'ha: f = 0;\n\t\t\t4'hb: f = 0;\n\t\t\t4'hc: f = 1;\n\t\t\t4'hd: f = 0;\n\t\t\t4'he: f = 1;\n\t\t\t4'hf: f = 1;\n\t\tendcase\n\tend\n\nendmodule\n", "module top_module (\n\tinput [4:1] x,\n\toutput logic f\n);\n\n\talways_comb begin\n\t\tcase (x) \n\t\t\t4'h0: f = 1;\n\t\t\t4'h1: f = 1;\n\t\t\t4'h2: f = 0;\n\t\t\t4'h3: f = 0;\n\t\t\t4'h4: f = 1;\n\t\t\t4'h5: f = 1;\n\t\t\t4'h6: f = 1;\n\t\t\t4'h7: f = 0;\n\t\t\t4'h8: f = 0;\n\t\t\t4'h9: f = 1; // Mutant: Changed \"f = 0\" to \"f = 1\"\n\t\t\t4'ha: f = 0;\n\t\t\t4'hb: f = 0;\n\t\t\t4'hc: f = 1;\n\t\t\t4'hd: f = 0;\n\t\t\t4'he: f = 1;\n\t\t\t4'hf: f = 1;\n\t\tendcase\n\tend\n\nendmodule\n", "module top_module (\n\tinput [4:1] x,\n\toutput logic f\n);\n\n\talways_comb begin\n\t\tcase (x) \n\t\t\t4'h0: f = 1;\n\t\t\t4'h1: f = 1;\n\t\t\t4'h2: f = 0;\n\t\t\t4'h3: f = 0;\n\t\t\t4'h4: f = 1;\n\t\t\t4'h5: f = 0; // Mutant: Changed \"f = 1\" to \"f = 0\"\n\t\t\t4'h6: f = 1;\n\t\t\t4'h7: f = 0;\n\t\t\t4'h8: f = 0;\n\t\t\t4'h9: f = 0;\n\t\t\t4'ha: f = 0;\n\t\t\t4'hb: f = 0;\n\t\t\t4'hc: f = 1;\n\t\t\t4'hd: f = 0;\n\t\t\t4'he: f = 1;\n\t\t\t4'hf: f = 1;\n\t\tendcase\n\tend\n\nendmodule\n", "module top_module (\n\tinput [4:1] x,\n\toutput logic f\n);\n\n\talways_comb begin\n\t\tcase (x) \n\t\t\t4'h0: f = 1;\n\t\t\t4'h1: f = 1;\n\t\t\t4'h2: f = 0;\n\t\t\t4'h3: f = 0;\n\t\t\t4'h4: f = 1;\n\t\t\t4'h5: f = 1;\n\t\t\t4'h6: f = 1;\n\t\t\t4'h7: f = 0;\n\t\t\t4'h8: f = 0;\n\t\t\t4'h9: f = 0;\n\t\t\t4'ha: f = 0;\n\t\t\t4'hb: f = 0;\n\t\t\t4'hc: f = 0; // Mutant: Changed \"f = 1\" to \"f = 0\"\n\t\t\t4'hd: f = 0;\n\t\t\t4'he: f = 1;\n\t\t\t4'hf: f = 1;\n\t\tendcase\n\tend\n\nendmodule\n"]}
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{"task_id": "always_nolatches", "mutants": ["module top_module (\n\tinput [15:0] scancode,\n\toutput reg left,\n\toutput reg down,\n\toutput reg right,\n\toutput reg up\n);\n\n\talways @(*) begin\n\t\t{up, left, down, right} = 0;\n\t\tcase (scancode)\n\t\t\t16'he06b: left = 1;\n\t\t\t16'he072: down = 1;\n\t\t\t16'he074: right = 1;\n\t\t\t16'he075: up = 1;\n\t\t\t// Change: Added an extra case that does nothing, essentially a no-op\n\t\t\t16'he000: ;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [15:0] scancode,\n\toutput reg left,\n\toutput reg down,\n\toutput reg right,\n\toutput reg up\n);\n\n\talways @(*) begin\n\t\t// Change: Initially set {up, left, down, right} to 4'b0001 instead of 0\n\t\t{up, left, down, right} = 4'b0001;\n\t\tcase (scancode)\n\t\t\t16'he06b: left = 1;\n\t\t\t16'he072: down = 1;\n\t\t\t16'he074: right = 1;\n\t\t\t16'he075: up = 1;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [15:0] scancode,\n\toutput reg left,\n\toutput reg down,\n\toutput reg right,\n\toutput reg up\n);\n\n\talways @(*) begin\n\t\t{up, left, down, right} = 0;\n\t\t// Change: Swapped the order of cases\n\t\tcase (scancode)\n\t\t\t16'he075: up = 1;\n\t\t\t16'he06b: left = 1;\n\t\t\t16'he074: right = 1;\n\t\t\t16'he072: down = 1;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [15:0] scancode,\n\toutput reg left,\n\toutput reg down,\n\toutput reg right,\n\toutput reg up\n);\n\n\talways @(*) begin\n\t\t{up, left, down, right} = 0;\n\t\tcase (scancode)\n\t\t\t16'he06b: left = 1;\n\t\t\t16'he072: down = 1;\n\t\t\t16'he074: right = 1;\n\t\t\t// Change: Changed the scancode for up arrow\n\t\t\t16'he076: up = 1;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [15:0] scancode,\n\toutput reg left,\n\toutput reg down,\n\toutput reg right,\n\toutput reg up\n);\n\n\talways @(*) begin\n\t\t{up, left, down, right} = 0;\n\t\tcase (scancode)\n\t\t\t// Change: Changed the scancode for left arrow\n\t\t\t16'he06c: left = 1;\n\t\t\t16'he072: down = 1;\n\t\t\t16'he074: right = 1;\n\t\t\t16'he075: up = 1;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [15:0] scancode,\n\toutput reg left,\n\toutput reg down,\n\toutput reg right,\n\toutput reg up\n);\n\n\talways @(*) begin\n\t\t{up, left, down, right} = 0;\n\t\tcase (scancode)\n\t\t\t16'he06b: left = 1;\n\t\t\t16'he072: down = 1;\n\t\t\t16'he074: right = 1;\n\t\t\t16'he075: up = 1;\n\t\t\t// Change: Incorrectly mapped scancode for an additional output, should not affect original functionality\n\t\t\t16'he077: up = 1;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [15:0] scancode,\n\toutput reg left,\n\toutput reg down,\n\toutput reg right,\n\toutput reg up\n);\n\n\t// Change: Inverted the initial condition for one of the outputs\n\talways @(*) begin\n\t\t{up, left, down, right} = 4'b1000;\n\t\tcase (scancode)\n\t\t\t16'he06b: left = 1;\n\t\t\t16'he072: down = 1;\n\t\t\t16'he074: right = 1;\n\t\t\t16'he075: up = 1;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [15:0] scancode,\n\toutput reg left,\n\toutput reg down,\n\toutput reg right,\n\toutput reg up\n);\n\n\talways @(*) begin\n\t\t{up, left, down, right} = 0;\n\t\t// Change: Added a default case that sets all outputs to 1\n\t\tcase (scancode)\n\t\t\t16'he06b: left = 1;\n\t\t\t16'he072: down = 1;\n\t\t\t16'he074: right = 1;\n\t\t\t16'he075: up = 1;\n\t\t\tdefault: {up, left, down, right} = 4'b1111;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [15:0] scancode,\n\toutput reg left,\n\toutput reg down,\n\toutput reg right,\n\toutput reg up\n);\n\n\talways @(*) begin\n\t\t{up, left, down, right} = 0;\n\t\tcase (scancode)\n\t\t\t16'he06b: left = 1;\n\t\t\t16'he072: down = 1;\n\t\t\t// Change: Removed the case for right arrow\n\t\t\t// 16'he074: right = 1;\n\t\t\t16'he075: up = 1;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [15:0] scancode,\n\toutput reg left,\n\toutput reg down,\n\toutput reg right,\n\toutput reg up\n);\n\n\talways @(*) begin\n\t\t{up, left, down, right} = 0;\n\t\tcase (scancode)\n\t\t\t16'he06b: left = 1;\n\t\t\t// Change: Combined cases for down and right arrows\n\t\t\t16'he072, 16'he074: {down, right} = 2'b11;\n\t\t\t16'he075: up = 1;\n\t\tendcase\n\tend\n\t\nendmodule\n"]}
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{"task_id": "fadd", "mutants": ["module top_module (\n\tinput a,\n\tinput b,\n\tinput cin,\n\toutput cout,\n\toutput sum\n);\n\n\tassign {cout, sum} = a + b + cin; // No change, for reference\n\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput cin,\n\toutput cout,\n\toutput sum\n);\n\n\tassign {cout, sum} = a - b + cin; // Changed '+' to '-' between a and b\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput cin,\n\toutput cout,\n\toutput sum\n);\n\n\tassign {cout, sum} = a + b - cin; // Changed '+' to '-' for cin\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput cin,\n\toutput cout,\n\toutput sum\n);\n\n\tassign {sum, cout} = a + b + cin; // Swapped cout and sum in the assignment\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput cin,\n\toutput cout,\n\toutput sum\n);\n\n\tassign {cout, sum} = {1'b0, a + b + cin}; // Added a constant bit '0' at the beginning of the result\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput cin,\n\toutput cout,\n\toutput sum\n);\n\n\tassign {cout, sum} = a & b + cin; // Changed '+' to '&' between a and b\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput cin,\n\toutput cout,\n\toutput sum\n);\n\n\tassign {cout, sum} = a + b + {cin}; // Enclosed cin in braces, no effective change but syntax variation\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput cin,\n\toutput cout,\n\toutput sum\n);\n\n\tassign {cout, sum} = a + b + cin ^ 1'b1; // Added XOR with 1 to the sum of a, b, and cin\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput cin,\n\toutput cout,\n\toutput sum\n);\n\n\tassign {cout, sum} = (a + b + cin) | 1'b1; // Added OR with 1 to the result\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\tinput cin,\n\toutput cout,\n\toutput sum\n);\n\n\tassign {cout, sum} = a + !b + cin; // Added logical NOT to b\nendmodule\n"]}
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{"task_id": "always_case2", "mutants": ["module top_module (\n\tinput [3:0] in,\n\toutput reg [1:0] pos\n);\n\n\talways @(*) begin\n\t\tcase (in)\n\t\t\t4'h0: pos = 2'h0;\n\t\t\t4'h1: pos = 2'h0; // No change here; included for reference\n\t\t\t4'h2: pos = 2'h2; // Changed pos from 2'h1 to 2'h2\n\t\t\t4'h3: pos = 2'h0;\n\t\t\t4'h4: pos = 2'h2;\n\t\t\t4'h5: pos = 2'h0;\n\t\t\t4'h6: pos = 2'h1;\n\t\t\t4'h7: pos = 2'h0;\n\t\t\t4'h8: pos = 2'h3;\n\t\t\t4'h9: pos = 2'h0;\n\t\t\t4'ha: pos = 2'h1;\n\t\t\t4'hb: pos = 2'h0;\n\t\t\t4'hc: pos = 2'h2;\n\t\t\t4'hd: pos = 2'h0;\n\t\t\t4'he: pos = 2'h1;\n\t\t\t4'hf: pos = 2'h0;\n\t\t\tdefault: pos = 2'b0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput reg [1:0] pos\n);\n\n\talways @(*) begin\n\t\tcase (in)\n\t\t\t4'h0: pos = 2'h0;\n\t\t\t4'h1: pos = 2'h0;\n\t\t\t4'h2: pos = 2'h1;\n\t\t\t4'h3: pos = 2'h1; // Changed pos from 2'h0 to 2'h1\n\t\t\t4'h4: pos = 2'h2;\n\t\t\t4'h5: pos = 2'h0;\n\t\t\t4'h6: pos = 2'h1;\n\t\t\t4'h7: pos = 2'h0;\n\t\t\t4'h8: pos = 2'h3;\n\t\t\t4'h9: pos = 2'h0;\n\t\t\t4'ha: pos = 2'h1;\n\t\t\t4'hb: pos = 2'h0;\n\t\t\t4'hc: pos = 2'h2;\n\t\t\t4'hd: pos = 2'h0;\n\t\t\t4'he: pos = 2'h1;\n\t\t\t4'hf: pos = 2'h0;\n\t\t\tdefault: pos = 2'b0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput reg [1:0] pos\n);\n\n\talways @(*) begin\n\t\tcase (in)\n\t\t\t4'h0: pos = 2'h0;\n\t\t\t4'h1: pos = 2'h0;\n\t\t\t4'h2: pos = 2'h1;\n\t\t\t4'h3: pos = 2'h0;\n\t\t\t4'h4: pos = 2'h1; // Changed pos from 2'h2 to 2'h1\n\t\t\t4'h5: pos = 2'h0;\n\t\t\t4'h6: pos = 2'h1;\n\t\t\t4'h7: pos = 2'h0;\n\t\t\t4'h8: pos = 2'h3;\n\t\t\t4'h9: pos = 2'h0;\n\t\t\t4'ha: pos = 2'h1;\n\t\t\t4'hb: pos = 2'h0;\n\t\t\t4'hc: pos = 2'h2;\n\t\t\t4'hd: pos = 2'h0;\n\t\t\t4'he: pos = 2'h1;\n\t\t\t4'hf: pos = 2'h0;\n\t\t\tdefault: pos = 2'b0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput reg [1:0] pos\n);\n\n\talways @(*) begin\n\t\tcase (in)\n\t\t\t4'h0: pos = 2'h0;\n\t\t\t4'h1: pos = 2'h1; // Changed pos from 2'h0 to 2'h1\n\t\t\t4'h2: pos = 2'h1;\n\t\t\t4'h3: pos = 2'h0;\n\t\t\t4'h4: pos = 2'h2;\n\t\t\t4'h5: pos = 2'h0;\n\t\t\t4'h6: pos = 2'h1;\n\t\t\t4'h7: pos = 2'h0;\n\t\t\t4'h8: pos = 2'h3;\n\t\t\t4'h9: pos = 2'h0;\n\t\t\t4'ha: pos = 2'h1;\n\t\t\t4'hb: pos = 2'h0;\n\t\t\t4'hc: pos = 2'h2;\n\t\t\t4'hd: pos = 2'h0;\n\t\t\t4'he: pos = 2'h1;\n\t\t\t4'hf: pos = 2'h0;\n\t\t\tdefault: pos = 2'b0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput reg [1:0] pos\n);\n\n\talways @(*) begin\n\t\tcase (in)\n\t\t\t4'h0: pos = 2'h1; // Changed pos from 2'h0 to 2'h1\n\t\t\t4'h1: pos = 2'h0;\n\t\t\t4'h2: pos = 2'h1;\n\t\t\t4'h3: pos = 2'h0;\n\t\t\t4'h4: pos = 2'h2;\n\t\t\t4'h5: pos = 2'h0;\n\t\t\t4'h6: pos = 2'h1;\n\t\t\t4'h7: pos = 2'h0;\n\t\t\t4'h8: pos = 2'h3;\n\t\t\t4'h9: pos = 2'h0;\n\t\t\t4'ha: pos = 2'h1;\n\t\t\t4'hb: pos = 2'h0;\n\t\t\t4'hc: pos = 2'h2;\n\t\t\t4'hd: pos = 2'h0;\n\t\t\t4'he: pos = 2'h1;\n\t\t\t4'hf: pos = 2'h0;\n\t\t\tdefault: pos = 2'b0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput reg [1:0] pos\n);\n\n\talways @(*) begin\n\t\tcase (in)\n\t\t\t4'h0: pos = 2'h0;\n\t\t\t4'h1: pos = 2'h0;\n\t\t\t4'h2: pos = 2'h1;\n\t\t\t4'h3: pos = 2'h0;\n\t\t\t4'h4: pos = 2'h2;\n\t\t\t4'h5: pos = 2'h1; // Changed pos from 2'h0 to 2'h1\n\t\t\t4'h6: pos = 2'h1;\n\t\t\t4'h7: pos = 2'h0;\n\t\t\t4'h8: pos = 2'h3;\n\t\t\t4'h9: pos = 2'h0;\n\t\t\t4'ha: pos = 2'h1;\n\t\t\t4'hb: pos = 2'h0;\n\t\t\t4'hc: pos = 2'h2;\n\t\t\t4'hd: pos = 2'h0;\n\t\t\t4'he: pos = 2'h1;\n\t\t\t4'hf: pos = 2'h0;\n\t\t\tdefault: pos = 2'b0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput reg [1:0] pos\n);\n\n\talways @(*) begin\n\t\tcase (in)\n\t\t\t4'h0: pos = 2'h0;\n\t\t\t4'h1: pos = 2'h0;\n\t\t\t4'h2: pos = 2'h1;\n\t\t\t4'h3: pos = 2'h0;\n\t\t\t4'h4: pos = 2'h2;\n\t\t\t4'h5: pos = 2'h0;\n\t\t\t4'h6: pos = 2'h2; // Changed pos from 2'h1 to 2'h2\n\t\t\t4'h7: pos = 2'h0;\n\t\t\t4'h8: pos = 2'h3;\n\t\t\t4'h9: pos = 2'h0;\n\t\t\t4'ha: pos = 2'h1;\n\t\t\t4'hb: pos = 2'h0;\n\t\t\t4'hc: pos = 2'h2;\n\t\t\t4'hd: pos = 2'h0;\n\t\t\t4'he: pos = 2'h1;\n\t\t\t4'hf: pos = 2'h0;\n\t\t\tdefault: pos = 2'b0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput reg [1:0] pos\n);\n\n\talways @(*) begin\n\t\tcase (in)\n\t\t\t4'h0: pos = 2'h0;\n\t\t\t4'h1: pos = 2'h0;\n\t\t\t4'h2: pos = 2'h1;\n\t\t\t4'h3: pos = 2'h0;\n\t\t\t4'h4: pos = 2'h2;\n\t\t\t4'h5: pos = 2'h0;\n\t\t\t4'h6: pos = 2'h1;\n\t\t\t4'h7: pos = 2'h1; // Changed pos from 2'h0 to 2'h1\n\t\t\t4'h8: pos = 2'h3;\n\t\t\t4'h9: pos = 2'h0;\n\t\t\t4'ha: pos = 2'h1;\n\t\t\t4'hb: pos = 2'h0;\n\t\t\t4'hc: pos = 2'h2;\n\t\t\t4'hd: pos = 2'h0;\n\t\t\t4'he: pos = 2'h1;\n\t\t\t4'hf: pos = 2'h0;\n\t\t\tdefault: pos = 2'b0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput reg [1:0] pos\n);\n\n\talways @(*) begin\n\t\tcase (in)\n\t\t\t4'h0: pos = 2'h0;\n\t\t\t4'h1: pos = 2'h0;\n\t\t\t4'h2: pos = 2'h1;\n\t\t\t4'h3: pos = 2'h0;\n\t\t\t4'h4: pos = 2'h2;\n\t\t\t4'h5: pos = 2'h0;\n\t\t\t4'h6: pos = 2'h1;\n\t\t\t4'h7: pos = 2'h0;\n\t\t\t4'h8: pos = 2'h2; // Changed pos from 2'h3 to 2'h2\n\t\t\t4'h9: pos = 2'h0;\n\t\t\t4'ha: pos = 2'h1;\n\t\t\t4'hb: pos = 2'h0;\n\t\t\t4'hc: pos = 2'h2;\n\t\t\t4'hd: pos = 2'h0;\n\t\t\t4'he: pos = 2'h1;\n\t\t\t4'hf: pos = 2'h0;\n\t\t\tdefault: pos = 2'b0;\n\t\tendcase\n\tend\n\t\nendmodule\n", "module top_module (\n\tinput [3:0] in,\n\toutput reg [1:0] pos\n);\n\n\talways @(*) begin\n\t\tcase (in)\n\t\t\t4'h0: pos = 2'h0;\n\t\t\t4'h1: pos = 2'h0;\n\t\t\t4'h2: pos = 2'h1;\n\t\t\t4'h3: pos = 2'h0;\n\t\t\t4'h4: pos = 2'h2;\n\t\t\t4'h5: pos = 2'h0;\n\t\t\t4'h6: pos = 2'h1;\n\t\t\t4'h7: pos = 2'h0;\n\t\t\t4'h8: pos = 2'h3;\n\t\t\t4'h9: pos = 2'h1; // Changed pos from 2'h0 to 2'h1\n\t\t\t4'ha: pos = 2'h1;\n\t\t\t4'hb: pos = 2'h0;\n\t\t\t4'hc: pos = 2'h2;\n\t\t\t4'hd: pos = 2'h0;\n\t\t\t4'he: pos = 2'h1;\n\t\t\t4'hf: pos = 2'h0;\n\t\t\tdefault: pos = 2'b0;\n\t\tendcase\n\tend\n\t\nendmodule\n"]}
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{"task_id": "m2014_q4j", "mutants": ["module top_module (\n\tinput [3:0] x,\n\tinput [3:0] y,\n\toutput [4:0] sum\n);\n\n\tassign sum = x+y; // Changed: No change in code; serves as a baseline for comparison.\nendmodule\n", "module top_module (\n\tinput [3:0] x,\n\tinput [3:0] y,\n\toutput [4:0] sum\n);\n\n\tassign sum = x+y+1; // Change: Added 1 to the sum.\nendmodule\n", "module top_module (\n\tinput [3:0] x,\n\tinput [3:0] y,\n\toutput [4:0] sum\n);\n\n\tassign sum = {1'b0,x} + {1'b0,y}; // Change: Explicitly extended both operands to 5 bits before addition.\nendmodule\n", "module top_module (\n\tinput [3:0] x,\n\tinput [3:0] y,\n\toutput [4:0] sum\n);\n\n\tassign sum = x+y-1; // Change: Subtracted 1 from the sum.\nendmodule\n", "module top_module (\n\tinput [3:0] x,\n\tinput [3:0] y,\n\toutput [4:0] sum\n);\n\n\tassign sum = x-y; // Change: Changed addition to subtraction.\nendmodule\n", "module top_module (\n\tinput [3:0] x,\n\tinput [3:0] y,\n\toutput [4:0] sum\n);\n\n\tassign sum = {x[3], x} + {y[3], y}; // Change: Extended each operand to 5 bits using MSB before addition.\nendmodule\n", "module top_module (\n\tinput [3:0] x,\n\tinput [3:0] y,\n\toutput [4:0] sum\n);\n\n\tassign sum = x+y; // Change: No functional change; included for diversity.\nendmodule\n", "module top_module (\n\tinput [3:0] x,\n\tinput [3:0] y,\n\toutput [4:0] sum\n);\n\n\tassign sum = x^y; // Change: Changed addition to XOR operation.\nendmodule\n", "module top_module (\n\tinput [3:0] x,\n\tinput [3:0] y,\n\toutput [4:0] sum\n);\n\n\tassign sum = (x+y)^5'b00001; // Change: XORed the result with 1.\nendmodule\n", "module top_module (\n\tinput [3:0] x,\n\tinput [3:0] y,\n\toutput [4:0] sum\n);\n\n\tassign sum = x|y; // Change: Changed addition to OR operation.\nendmodule\n"]}
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{"task_id": "vector0", "mutants": ["module top_module(\n input [2:0] vec, \n output [2:0] outv,\n output o2,\n output o1,\n output o0\n);\n\n assign outv = vec;\n assign {o2, o1, o0} = {vec[1], vec[0], vec[2]}; // Changed the ordering in the bit assignment\n\nendmodule\n", "module top_module(\n input [2:0] vec, \n output [2:0] outv,\n output o2,\n output o1,\n output o0\n);\n\n assign outv = {vec[0], vec[2], vec[1]}; // Changed the order of bits in the output vector\n assign {o2, o1, o0} = vec;\n\nendmodule\n", "module top_module(\n input [2:0] vec, \n output [2:0] outv,\n output o2,\n output o1,\n output o0\n);\n\n assign outv = vec;\n assign {o2, o0, o1} = vec; // Swapped o1 and o0 in the bit assignment\n\nendmodule\n", "module top_module(\n input [2:0] vec, \n output [2:0] outv,\n output o2,\n output o1,\n output o0\n);\n\n assign outv = ~vec; // Inverted the bits of vec for the output vector\n assign {o2, o1, o0} = vec;\n\nendmodule\n", "module top_module(\n input [2:0] vec, \n output [2:0] outv,\n output o2,\n output o1,\n output o0\n);\n\n assign outv = {3{vec[0]}}; // Replicated the first bit of vec across the outv\n assign {o2, o1, o0} = vec;\n\nendmodule\n", "module top_module(\n input [2:0] vec, \n output [2:0] outv,\n output o2,\n output o1,\n output o0\n);\n\n assign outv = vec;\n assign {o2, o1, o0} = vec ^ 3'b101; // XORed vec with a bit pattern before assignment\n\nendmodule\n", "module top_module(\n input [2:0] vec, \n output [2:0] outv,\n output o2,\n output o1,\n output o0\n);\n\n assign outv = vec;\n assign {o2, o1} = vec[2:1]; // Only assigned the first two bits, leaving o0 disconnected\n // o0 is not assigned\n\nendmodule\n", "module top_module(\n input [2:0] vec, \n output [2:0] outv,\n output o2,\n output o1,\n output o0\n);\n\n assign outv = {vec[1:0], vec[2]}; // Rearranged bits in outv\n assign {o2, o1, o0} = vec;\n\nendmodule\n", "module top_module(\n input [2:0] vec, \n output [2:0] outv,\n output o2,\n output o1,\n output o0\n);\n\n assign outv = vec;\n assign {o2, o1, o0} = {2'b00, vec[0]}; // Only the least significant bit of vec is used, zeros for others\n\nendmodule\n", "module top_module(\n input [2:0] vec, \n output [2:0] outv,\n output o2,\n output o1,\n output o0\n);\n\n assign outv = {vec[2], vec[2:1]}; // Incorrect bit-width for assignment, potentially causing a warning\n assign {o2, o1, o0} = vec;\n\nendmodule\n"]}
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{"task_id": "2012_q2b", "mutants": ["module top_module (\n input [5:0] y,\n input w,\n output Y1,\n output Y3\n);\n assign Y1 = y[0]&w; // Unchanged\n assign Y3 = (y[1]|y[2]|y[4]|y[5]) & w; // Changed ~w to w\nendmodule\n", "module top_module (\n input [5:0] y,\n input w,\n output Y1,\n output Y3\n);\n assign Y1 = y[0]|w; // Changed & to |\n assign Y3 = (y[1]|y[2]|y[4]|y[5]) & ~w; // Unchanged\nendmodule\n", "module top_module (\n input [5:0] y,\n input w,\n output Y1,\n output Y3\n);\n assign Y1 = y[0]&w; // Unchanged\n assign Y3 = (y[1]&y[2]|y[4]|y[5]) & ~w; // Changed | to & between y[1] and y[2]\nendmodule\n", "module top_module (\n input [5:0] y,\n input w,\n output Y1,\n output Y3\n);\n assign Y1 = !y[0]&w; // Changed y[0] to !y[0]\n assign Y3 = (y[1]|y[2]|y[4]|y[5]) & ~w; // Unchanged\nendmodule\n", "module top_module (\n input [5:0] y,\n input w,\n output Y1,\n output Y3\n);\n assign Y1 = y[0]&w; // Unchanged\n assign Y3 = (y[0]|y[1]|y[2]|y[4]|y[5]) & ~w; // Added y[0] to the Y3 condition\nendmodule\n", "module top_module (\n input [5:0] y,\n input w,\n output Y1,\n output Y3\n);\n assign Y1 = (y[0]&w) | y[1]; // Added y[1] to the Y1 condition\n assign Y3 = (y[1]|y[2]|y[4]|y[5]) & ~w; // Unchanged\nendmodule\n", "module top_module (\n input [5:0] y,\n input w,\n output Y1,\n output Y3\n);\n assign Y1 = y[0]&w; // Unchanged\n assign Y3 = (y[1]|y[2]|y[4]) & ~w; // Removed y[5] from the Y3 condition\nendmodule\n", "module top_module (\n input [5:0] y,\n input w,\n output Y1,\n output Y3\n);\n assign Y1 = y[0]&!w; // Changed w to !w for Y1\n assign Y3 = (y[1]|y[2]|y[4]|y[5]) & ~w; // Unchanged\nendmodule\n", "module top_module (\n input [5:0] y,\n input w,\n output Y1,\n output Y3\n);\n assign Y1 = (y[0]^w); // Changed & to ^ for Y1\n assign Y3 = (y[1]|y[2]|y[4]|y[5]) & ~w; // Unchanged\nendmodule\n", "module top_module (\n input [5:0] y,\n input w,\n output Y1,\n output Y3\n);\n assign Y1 = y[0]&w; // Unchanged\n assign Y3 = (y[1]|y[2]|y[3]|y[4]|y[5]) & ~w; // Added y[3] to the Y3 condition\nendmodule\n"]}
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{"task_id": "kmap4", "mutants": ["module top_module (\n input a, \n input b,\n input c,\n input d,\n output reg out\n);\n\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 0;\n 4'h1: out = 1;\n 4'h3: out = 0;\n 4'h2: out = 1;\n 4'h4: out = 1;\n 4'h5: out = 0;\n 4'h7: out = 1;\n 4'h6: out = 1; // Mutation: changed out to 1\n 4'hc: out = 0;\n 4'hd: out = 1;\n 4'hf: out = 0;\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 0;\n 4'hb: out = 1;\n 4'ha: out = 0;\n endcase\n end\nendmodule\n", "module top_module (\n input a, \n input b,\n input c,\n input d,\n output reg out\n);\n\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 0;\n 4'h1: out = 0; // Mutation: changed out to 0\n 4'h3: out = 0;\n 4'h2: out = 1;\n 4'h4: out = 1;\n 4'h5: out = 0;\n 4'h7: out = 1;\n 4'h6: out = 0;\n 4'hc: out = 0;\n 4'hd: out = 1;\n 4'hf: out = 0;\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 0;\n 4'hb: out = 1;\n 4'ha: out = 0;\n endcase\n end\nendmodule\n", "module top_module (\n input a, \n input b,\n input c,\n input d,\n output reg out\n);\n\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 0;\n 4'h1: out = 1;\n 4'h3: out = 0;\n 4'h2: out = 1;\n 4'h4: out = 1;\n 4'h5: out = 0;\n 4'h7: out = 1;\n 4'h6: out = 0;\n 4'hc: out = 1; // Mutation: changed out to 1\n 4'hd: out = 1;\n 4'hf: out = 0;\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 0;\n 4'hb: out = 1;\n 4'ha: out = 0;\n endcase\n end\nendmodule\n", "module top_module (\n input a, \n input b,\n input c,\n input d,\n output reg out\n);\n\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 0;\n 4'h1: out = 1;\n 4'h3: out = 1; // Mutation: changed out to 1\n 4'h2: out = 1;\n 4'h4: out = 1;\n 4'h5: out = 0;\n 4'h7: out = 1;\n 4'h6: out = 0;\n 4'hc: out = 0;\n 4'hd: out = 1;\n 4'hf: out = 0;\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 0;\n 4'hb: out = 1;\n 4'ha: out = 0;\n endcase\n end\nendmodule\n", "module top_module (\n input a, \n input b,\n input c,\n input d,\n output reg out\n);\n\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 0;\n 4'h1: out = 1;\n 4'h3: out = 0;\n 4'h2: out = 1;\n 4'h4: out = 0; // Mutation: changed out to 0\n 4'h5: out = 0;\n 4'h7: out = 1;\n 4'h6: out = 0;\n 4'hc: out = 0;\n 4'hd: out = 1;\n 4'hf: out = 0;\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 0;\n 4'hb: out = 1;\n 4'ha: out = 0;\n endcase\n end\nendmodule\n", "module top_module (\n input a, \n input b,\n input c,\n input d,\n output reg out\n);\n\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 1; // Mutation: changed out to 1\n 4'h1: out = 1;\n 4'h3: out = 0;\n 4'h2: out = 1;\n 4'h4: out = 1;\n 4'h5: out = 0;\n 4'h7: out = 1;\n 4'h6: out = 0;\n 4'hc: out = 0;\n 4'hd: out = 1;\n 4'hf: out = 0;\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 0;\n 4'hb: out = 1;\n 4'ha: out = 0;\n endcase\n end\nendmodule\n", "module top_module (\n input a, \n input b,\n input c,\n input d,\n output reg out\n);\n\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 0;\n 4'h1: out = 1;\n 4'h3: out = 0;\n 4'h2: out = 1;\n 4'h4: out = 1;\n 4'h5: out = 0;\n 4'h7: out = 0; // Mutation: changed out to 0\n 4'h6: out = 0;\n 4'hc: out = 0;\n 4'hd: out = 1;\n 4'hf: out = 0;\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 0;\n 4'hb: out = 1;\n 4'ha: out = 0;\n endcase\n end\nendmodule\n", "module top_module (\n input a, \n input b,\n input c,\n input d,\n output reg out\n);\n\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 0;\n 4'h1: out = 1;\n 4'h3: out = 0;\n 4'h2: out = 0; // Mutation: changed out to 0\n 4'h4: out = 1;\n 4'h5: out = 0;\n 4'h7: out = 1;\n 4'h6: out = 0;\n 4'hc: out = 0;\n 4'hd: out = 1;\n 4'hf: out = 0;\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 0;\n 4'hb: out = 1;\n 4'ha: out = 0;\n endcase\n end\nendmodule\n", "module top_module (\n input a, \n input b,\n input c,\n input d,\n output reg out\n);\n\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 0;\n 4'h1: out = 1;\n 4'h3: out = 0;\n 4'h2: out = 1;\n 4'h4: out = 1;\n 4'h5: out = 0;\n 4'h7: out = 1;\n 4'h6: out = 0;\n 4'hc: out = 0;\n 4'hd: out = 0; // Mutation: changed out to 0\n 4'hf: out = 0;\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 0;\n 4'hb: out = 1;\n 4'ha: out = 0;\n endcase\n end\nendmodule\n", "module top_module (\n input a, \n input b,\n input c,\n input d,\n output reg out\n);\n\n always @(*) begin\n case({a,b,c,d})\n 4'h0: out = 0;\n 4'h1: out = 1;\n 4'h3: out = 0;\n 4'h2: out = 1;\n 4'h4: out = 1;\n 4'h5: out = 0;\n 4'h7: out = 1;\n 4'h6: out = 0;\n 4'hc: out = 0;\n 4'hd: out = 1;\n 4'hf: out = 1; // Mutation: changed out to 1\n 4'he: out = 1;\n 4'h8: out = 1;\n 4'h9: out = 0;\n 4'hb: out = 1;\n 4'ha: out = 0;\n endcase\n end\nendmodule\n"]}
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{"task_id": "m2014_q3", "mutants": ["module top_module (\n\tinput [4:1] x,\n\toutput logic f\n);\n\n\talways_comb begin\n\t\tcase (x) \n\t\t\t4'h0: f = 1'bx; // No change\n\t\t\t4'h1: f = 1'bx; // No change\n\t\t\t4'h2: f = 0; // No change\n\t\t\t4'h3: f = 1'bx; // No change\n\t\t\t4'h4: f = 1; // No change\n\t\t\t4'h5: f = 1'bx; // No change\n\t\t\t4'h6: f = 1; // No change\n\t\t\t4'h7: f = 0; // No change\n\t\t\t4'h8: f = 0; // No change\n\t\t\t4'h9: f = 0; // No change\n\t\t\t4'ha: f = 1; // Changed from 1'bx to 1\n\t\t\t4'hb: f = 1; // No change\n\t\t\t4'hc: f = 1; // No change\n\t\t\t4'hd: f = 1'bx; // No change\n\t\t\t4'he: f = 1; // No change\n\t\t\t4'hf: f = 1'bx; // No change\n\t\tendcase\n\tend\n\nendmodule\n", "module top_module (\n\tinput [4:1] x,\n\toutput logic f\n);\n\n\talways_comb begin\n\t\tcase (x) \n\t\t\t4'h0: f = 0; // Changed from 1'bx to 0\n\t\t\t4'h1: f = 1'bx; // No change\n\t\t\t4'h2: f = 0; // No change\n\t\t\t4'h3: f = 1'bx; // No change\n\t\t\t4'h4: f = 1; // No change\n\t\t\t4'h5: f = 1'bx; // No change\n\t\t\t4'h6: f = 1; // No change\n\t\t\t4'h7: f = 0; // No change\n\t\t\t4'h8: f = 0; // No change\n\t\t\t4'h9: f = 0; // No change\n\t\t\t4'ha: f = 1'bx; // No change\n\t\t\t4'hb: f = 1; // No change\n\t\t\t4'hc: f = 1; // No change\n\t\t\t4'hd: f = 1'bx; // No change\n\t\t\t4'he: f = 1; // No change\n\t\t\t4'hf: f = 1'bx; // No change\n\t\tendcase\n\tend\n\nendmodule\n", "module top_module (\n\tinput [4:1] x,\n\toutput logic f\n);\n\n\talways_comb begin\n\t\tcase (x) \n\t\t\t4'h0: f = 1'bx; // No change\n\t\t\t4'h1: f = 0; // Changed from 1'bx to 0\n\t\t\t4'h2: f = 0; // No change\n\t\t\t4'h3: f = 1'bx; // No change\n\t\t\t4'h4: f = 0; // Changed from 1 to 0\n\t\t\t4'h5: f = 1'bx; // No change\n\t\t\t4'h6: f = 1; // No change\n\t\t\t4'h7: f = 0; // No change\n\t\t\t4'h8: f = 0; // No change\n\t\t\t4'h9: f = 0; // No change\n\t\t\t4'ha: f = 1'bx; // No change\n\t\t\t4'hb: f = 1; // No change\n\t\t\t4'hc: f = 1; // No change\n\t\t\t4'hd: f = 1'bx; // No change\n\t\t\t4'he: f = 1; // No change\n\t\t\t4'hf: f = 1'bx; // No change\n\t\tendcase\n\tend\n\nendmodule\n", "module top_module (\n\tinput [4:1] x,\n\toutput logic f\n);\n\n\talways_comb begin\n\t\tcase (x) \n\t\t\t4'h0: f = 1'bx; // No change\n\t\t\t4'h1: f = 1'bx; // No change\n\t\t\t4'h2: f = 1; // Changed from 0 to 1\n\t\t\t4'h3: f = 1'bx; // No change\n\t\t\t4'h4: f = 1; // No change\n\t\t\t4'h5: f = 1'bx; // No change\n\t\t\t4'h6: f = 1; // No change\n\t\t\t4'h7: f = 0; // No change\n\t\t\t4'h8: f = 0; // No change\n\t\t\t4'h9: f = 0; // No change\n\t\t\t4'ha: f = 1'bx; // No change\n\t\t\t4'hb: f = 1; // No change\n\t\t\t4'hc: f = 1; // No change\n\t\t\t4'hd: f = 1'bx; // No change\n\t\t\t4'he: f = 1; // No change\n\t\t\t4'hf: f = 1'bx; // No change\n\t\tendcase\n\tend\n\nendmodule\n", "module top_module (\n\tinput [4:1] x,\n\toutput logic f\n);\n\n\talways_comb begin\n\t\tcase (x) \n\t\t\t4'h0: f = 1'bx; // No change\n\t\t\t4'h1: f = 1'bx; // No change\n\t\t\t4'h2: f = 0; // No change\n\t\t\t4'h3: f = 1; // Changed from 1'bx to 1\n\t\t\t4'h4: f = 1; // No change\n\t\t\t4'h5: f = 1'bx; // No change\n\t\t\t4'h6: f = 1; // No change\n\t\t\t4'h7: f = 0; // No change\n\t\t\t4'h8: f = 0; // No change\n\t\t\t4'h9: f = 0; // No change\n\t\t\t4'ha: f = 1'bx; // No change\n\t\t\t4'hb: f = 1; // No change\n\t\t\t4'hc: f = 1; // No change\n\t\t\t4'hd: f = 1'bx; // No change\n\t\t\t4'he: f = 1; // No change\n\t\t\t4'hf: f = 1'bx; // No change\n\t\tendcase\n\tend\n\nendmodule\n", "module top_module (\n\tinput [4:1] x,\n\toutput logic f\n);\n\n\talways_comb begin\n\t\tcase (x) \n\t\t\t4'h0: f = 1'bx; // No change\n\t\t\t4'h1: f = 1'bx; // No change\n\t\t\t4'h2: f = 0; // No change\n\t\t\t4'h3: f = 1'bx; // No change\n\t\t\t4'h4: f = 1; // No change\n\t\t\t4'h5: f = 0; // Changed from 1'bx to 0\n\t\t\t4'h6: f = 1; // No change\n\t\t\t4'h7: f = 0; // No change\n\t\t\t4'h8: f = 0; // No change\n\t\t\t4'h9: f = 0; // No change\n\t\t\t4'ha: f = 1'bx; // No change\n\t\t\t4'hb: f = 1; // No change\n\t\t\t4'hc: f = 1; // No change\n\t\t\t4'hd: f = 1'bx; // No change\n\t\t\t4'he: f = 1; // No change\n\t\t\t4'hf: f = 1'bx; // No change\n\t\tendcase\n\tend\n\nendmodule\n", "module top_module (\n\tinput [4:1] x,\n\toutput logic f\n);\n\n\talways_comb begin\n\t\tcase (x) \n\t\t\t4'h0: f = 1'bx; // No change\n\t\t\t4'h1: f = 1'bx; // No change\n\t\t\t4'h2: f = 0; // No change\n\t\t\t4'h3: f = 1'bx; // No change\n\t\t\t4'h4: f = 1; // No change\n\t\t\t4'h5: f = 1'bx; // No change\n\t\t\t4'h6: f = 0; // Changed from 1 to 0\n\t\t\t4'h7: f = 0; // No change\n\t\t\t4'h8: f = 0; // No change\n\t\t\t4'h9: f = 0; // No change\n\t\t\t4'ha: f = 1'bx; // No change\n\t\t\t4'hb: f = 1; // No change\n\t\t\t4'hc: f = 1; // No change\n\t\t\t4'hd: f = 1'bx; // No change\n\t\t\t4'he: f = 1; // No change\n\t\t\t4'hf: f = 1'bx; // No change\n\t\tendcase\n\tend\n\nendmodule\n", "module top_module (\n\tinput [4:1] x,\n\toutput logic f\n);\n\n\talways_comb begin\n\t\tcase (x) \n\t\t\t4'h0: f = 1'bx; // No change\n\t\t\t4'h1: f = 1'bx; // No change\n\t\t\t4'h2: f = 0; // No change\n\t\t\t4'h3: f = 1'bx; // No change\n\t\t\t4'h4: f = 1; // No change\n\t\t\t4'h5: f = 1'bx; // No change\n\t\t\t4'h6: f = 1; // No change\n\t\t\t4'h7: f = 1; // Changed from 0 to 1\n\t\t\t4'h8: f = 0; // No change\n\t\t\t4'h9: f = 0; // No change\n\t\t\t4'ha: f = 1'bx; // No change\n\t\t\t4'hb: f = 1; // No change\n\t\t\t4'hc: f = 1; // No change\n\t\t\t4'hd: f = 1'bx; // No change\n\t\t\t4'he: f = 1; // No change\n\t\t\t4'hf: f = 1'bx; // No change\n\t\tendcase\n\tend\n\nendmodule\n", "module top_module (\n\tinput [4:1] x,\n\toutput logic f\n);\n\n\talways_comb begin\n\t\tcase (x) \n\t\t\t4'h0: f = 1'bx; // No change\n\t\t\t4'h1: f = 1'bx; // No change\n\t\t\t4'h2: f = 0; // No change\n\t\t\t4'h3: f = 1'bx; // No change\n\t\t\t4'h4: f = 1; // No change\n\t\t\t4'h5: f = 1'bx; // No change\n\t\t\t4'h6: f = 1; // No change\n\t\t\t4'h7: f = 0; // No change\n\t\t\t4'h8: f = 1; // Changed from 0 to 1\n\t\t\t4'h9: f = 0; // No change\n\t\t\t4'ha: f = 1'bx; // No change\n\t\t\t4'hb: f = 1; // No change\n\t\t\t4'hc: f = 1; // No change\n\t\t\t4'hd: f = 1'bx; // No change\n\t\t\t4'he: f = 1; // No change\n\t\t\t4'hf: f = 1'bx; // No change\n\t\tendcase\n\tend\n\nendmodule\n", "module top_module (\n\tinput [4:1] x,\n\toutput logic f\n);\n\n\talways_comb begin\n\t\tcase (x) \n\t\t\t4'h0: f = 1'bx; // No change\n\t\t\t4'h1: f = 1'bx; // No change\n\t\t\t4'h2: f = 0; // No change\n\t\t\t4'h3: f = 1'bx; // No change\n\t\t\t4'h4: f = 1; // No change\n\t\t\t4'h5: f = 1'bx; // No change\n\t\t\t4'h6: f = 1; // No change\n\t\t\t4'h7: f = 0; // No change\n\t\t\t4'h8: f = 0; // No change\n\t\t\t4'h9: f = 1; // Changed from 0 to 1\n\t\t\t4'ha: f = 1'bx; // No change\n\t\t\t4'hb: f = 1; // No change\n\t\t\t4'hc: f = 1; // No change\n\t\t\t4'hd: f = 1'bx; // No change\n\t\t\t4'he: f = 1; // No change\n\t\t\t4'hf: f = 1'bx; // No change\n\t\tendcase\n\tend\n\nendmodule\n"]}
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{"task_id": "notgate", "mutants": ["module top_module(\n input in,\n output out\n);\n \n assign out = ~in; // Mutation: No change, control mutation to establish a baseline difference.\n\nendmodule\n", "module top_module(\n input in,\n output out\n);\n \n assign out = in; // Mutation: Removed NOT operation, making it a buffer instead of a NOT gate.\n\nendmodule\n", "module top_module(\n input in,\n output out\n);\n \n assign out = ~in | in; // Mutation: Added OR operation with the same input, making the output always 1.\n\nendmodule\n", "module top_module(\n input in,\n output out\n);\n \n assign out = ~in & in; // Mutation: Added AND operation with its inverse, making the output always 0.\n\nendmodule\n", "module top_module(\n input in,\n output out\n);\n \n wire temp; // Mutation: Introduced an intermediary wire but not used.\n assign out = ~in;\n \nendmodule\n"]}
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{"task_id": "mux2to1v", "mutants": ["module top_module (\n\tinput [99:0] a,\n\tinput [99:0] b,\n\tinput sel,\n\toutput [99:0] out\n);\n\n\tassign out = sel ? a : b; // Change: swapped a and b in the ternary operation\n\nendmodule\n", "module top_module (\n\tinput [99:0] a,\n\tinput [99:0] b,\n\tinput sel,\n\toutput [99:0] out\n);\n\n\tassign out = sel ? b : {a[98:0], a[99]}; // Change: rotated a to the right\n\nendmodule\n", "module top_module (\n\tinput [99:0] a,\n\tinput [99:0] b,\n\tinput sel,\n\toutput [99:0] out\n);\n\n\tassign out = sel ? {b[0], b[99:1]} : a; // Change: rotated b to the left\n\nendmodule\n", "module top_module (\n\tinput [99:0] a,\n\tinput [99:0] b,\n\tinput sel,\n\toutput [99:0] out\n);\n\n\tassign out = sel ? b : ~a; // Change: bitwise NOT operation on a\n\nendmodule\n", "module top_module (\n\tinput [99:0] a,\n\tinput [99:0] b,\n\tinput sel,\n\toutput [99:0] out\n);\n\n\tassign out = sel ? ~b : a; // Change: bitwise NOT operation on b\n\nendmodule\n", "module top_module (\n\tinput [99:0] a,\n\tinput [99:0] b,\n\tinput sel,\n\toutput [99:0] out\n);\n\n\tassign out = sel ? {b[99:50], a[49:0]} : a; // Change: mixed half of b and half of a when sel=1\n\nendmodule\n", "module top_module (\n\tinput [99:0] a,\n\tinput [99:0] b,\n\tinput sel,\n\toutput [99:0] out\n);\n\n\tassign out = sel ? b : {a[49:0], a[99:50]}; // Change: swapped the halves of a\n\nendmodule\n", "module top_module (\n\tinput [99:0] a,\n\tinput [99:0] b,\n\tinput sel,\n\toutput [99:0] out\n);\n\n\tassign out = sel ? {b[50:0], b[99:51]} : a; // Change: swapped the halves of b and made an off by one change\n\nendmodule\n", "module top_module (\n\tinput [99:0] a,\n\tinput [99:0] b,\n\tinput sel,\n\toutput [99:0] out\n);\n\n\tassign out = sel && sel ? b : a; // Change: redundant logical AND operation on sel\n\nendmodule\n", "module top_module (\n\tinput [99:0] a,\n\tinput [99:0] b,\n\tinput sel,\n\toutput [99:0] out\n);\n\n\tassign out = !sel ? b : a; // Change: negated the selector condition\n\nendmodule\n"]}
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{"task_id": "gates", "mutants": ["module top_module (\n\tinput a,\n\tinput b,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor,\n\toutput out_nand,\n\toutput out_nor,\n\toutput out_xnor,\n\toutput out_anotb\n);\n\n\tassign out_and = a&b;\n\tassign out_or = a|b;\n\tassign out_xor = a^b;\n\tassign out_nand = ~(a&b);\n\tassign out_nor = ~(a|b);\n\tassign out_xnor = a^~b; // Change: Used a^~b instead of ~(a^b) for xnor, logically same but minor alteration in expression\n\tassign out_anotb = a & ~b;\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor,\n\toutput out_nand,\n\toutput out_nor,\n\toutput out_xnor,\n\toutput out_anotb\n);\n\n\tassign out_and = a&b;\n\tassign out_or = a|b;\n\tassign out_xor = a^b;\n\tassign out_nand = ~(a&b); // No change here \n\tassign out_nor = ~(a|b); // No change here \n\tassign out_xnor = ~(a^b); // No change here \n\tassign out_anotb = a & b; // Change: Incorrectly showing AND result instead of AND-NOT\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor,\n\toutput out_nand,\n\toutput out_nor,\n\toutput out_xnor,\n\toutput out_anotb\n);\n\n\tassign out_and = a&b;\n\tassign out_or = a|b;\n\tassign out_xor = a^~b; // Change: XOR with inverted b, changing the logic.\n\tassign out_nand = ~(a&b);\n\tassign out_nor = ~(a|b);\n\tassign out_xnor = ~(a^b);\n\tassign out_anotb = a & ~b;\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor,\n\toutput out_nand,\n\toutput out_nor,\n\toutput out_xnor,\n\toutput out_anotb\n);\n\n\tassign out_and = a&b;\n\tassign out_or = a|~b; // Change: OR with inverted b, changing the logic.\n\tassign out_xor = a^b;\n\tassign out_nand = ~(a&b);\n\tassign out_nor = ~(a|b);\n\tassign out_xnor = ~(a^b);\n\tassign out_anotb = a & ~b;\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor,\n\toutput out_nand,\n\toutput out_nor,\n\toutput out_xnor,\n\toutput out_anotb\n);\n\n\tassign out_and = a&b;\n\tassign out_or = a|b;\n\tassign out_xor = a^b;\n\tassign out_nand = a&b; // Change: Removed inversion for nand, changing the logic.\n\tassign out_nor = ~(a|b);\n\tassign out_xnor = ~(a^b);\n\tassign out_anotb = a & ~b;\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor,\n\toutput out_nand,\n\toutput out_nor,\n\toutput out_xnor,\n\toutput out_anotb\n);\n\n\tassign out_and = a&b;\n\tassign out_or = a|b;\n\tassign out_xor = a^b;\n\tassign out_nand = ~(a&b);\n\tassign out_nor = a|b; // Change: Removed inversion for nor, logically incorrect.\n\tassign out_xnor = ~(a^b);\n\tassign out_anotb = a & ~b;\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor,\n\toutput out_nand,\n\toutput out_nor,\n\toutput out_xnor,\n\toutput out_anotb\n);\n\n\tassign out_and = a|b; // Change: Incorrectly using OR operation for AND output.\n\tassign out_or = a|b;\n\tassign out_xor = a^b;\n\tassign out_nand = ~(a&b);\n\tassign out_nor = ~(a|b);\n\tassign out_xnor = ~(a^b);\n\tassign out_anotb = a & ~b;\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor,\n\toutput out_nand,\n\toutput out_nor,\n\toutput out_xnor,\n\toutput out_anotb\n);\n\n\tassign out_and = a&b;\n\tassign out_or = a|b;\n\tassign out_xor = a&b; // Change: Using AND operation for XOR output, logically incorrect.\n\tassign out_nand = ~(a&b);\n\tassign out_nor = ~(a|b);\n\tassign out_xnor = ~(a^b);\n\tassign out_anotb = a & ~b;\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor,\n\toutput out_nand,\n\toutput out_nor,\n\toutput out_xnor,\n\toutput out_anotb\n);\n\n\tassign out_and = a&b;\n\tassign out_or = a&b; // Change: Using AND operation for OR output, logically incorrect.\n\tassign out_xor = a^b;\n\tassign out_nand = ~(a&b);\n\tassign out_nor = ~(a|b);\n\tassign out_xnor = ~(a^b);\n\tassign out_anotb = a & ~b;\n\t\nendmodule\n", "module top_module (\n\tinput a,\n\tinput b,\n\toutput out_and,\n\toutput out_or,\n\toutput out_xor,\n\toutput out_nand,\n\toutput out_nor,\n\toutput out_xnor,\n\toutput out_anotb\n);\n\n\tassign out_and = a&b;\n\tassign out_or = a|b;\n\tassign out_xor = a^b;\n\tassign out_nand = ~(a&b);\n\tassign out_nor = ~(a|b);\n\tassign out_xnor = a|~b; // Change: Used OR with inverted b instead of XNOR logic, altering the logical operation.\n\tassign out_anotb = a & ~b;\n\t\nendmodule\n"]}
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{"task_id": "7458", "mutants": ["module top_module(\n\tinput p1a, \n\tinput p1b, \n\tinput p1c, \n\tinput p1d,\n\tinput p1e,\n\tinput p1f,\n\toutput p1y, \n\tinput p2a, \n\tinput p2b, \n\tinput p2c, \n\tinput p2d, \n\toutput p2y\n);\n\t\n\tassign p1y = &{p1a, p1b, p1c} & &{p1d, p1e, p1f}; // Changed | to &\n\tassign p2y = &{p2a, p2b} | &{p2c, p2d};\n\t\nendmodule\n", "module top_module(\n\tinput p1a, \n\tinput p1b, \n\tinput p1c, \n\tinput p1d,\n\tinput p1e,\n\tinput p1f,\n\toutput p1y, \n\tinput p2a, \n\tinput p2b, \n\tinput p2c, \n\tinput p2d, \n\toutput p2y\n);\n\t\n\tassign p1y = |{p1a, p1b, p1c} | &{p1d, p1e, p1f}; // Changed & to | for first AND\n\tassign p2y = &{p2a, p2b} | &{p2c, p2d};\n\t\nendmodule\n", "module top_module(\n\tinput p1a, \n\tinput p1b, \n\tinput p1c, \n\tinput p1d,\n\tinput p1e,\n\tinput p1f,\n\toutput p1y, \n\tinput p2a, \n\tinput p2b, \n\tinput p2c, \n\tinput p2d, \n\toutput p2y\n);\n\t\n\tassign p1y = &{p1a, p1b, p1c} | &{p1d, p1e, p1f};\n\tassign p2y = |{p2a, p2b} | &{p2c, p2d}; // Changed & to | for first AND in p2y\nendmodule\n", "module top_module(\n\tinput p1a, \n\tinput p1b, \n\tinput p1c, \n\tinput p1d,\n\tinput p1e,\n\tinput p1f,\n\toutput p1y, \n\tinput p2a, \n\tinput p2b, \n\tinput p2c, \n\tinput p2d, \n\toutput p2y\n);\n\t\n\tassign p1y = &{p1a, p1b, p1c} | &{p1d, p1e, p1f};\n\tassign p2y = &{p2a, p2b} | |{p2c, p2d}; // Changed & to | for second AND in p2y\nendmodule\n", "module top_module(\n\tinput p1a, \n\tinput p1b, \n\tinput p1c, \n\tinput p1d,\n\tinput p1e,\n\tinput p1f,\n\toutput p1y, \n\tinput p2a, \n\tinput p2b, \n\tinput p2c, \n\tinput p2d, \n\toutput p2y\n);\n\t\n\tassign p1y = &{p1a, p1b} | &{p1d, p1e, p1f}; // Removed p1c from first AND\n\tassign p2y = &{p2a, p2b} | &{p2c, p2d};\n\t\nendmodule\n", "module top_module(\n\tinput p1a, \n\tinput p1b, \n\tinput p1c, \n\tinput p1d,\n\tinput p1e,\n\tinput p1f,\n\toutput p1y, \n\tinput p2a, \n\tinput p2b, \n\tinput p2c, \n\tinput p2d, \n\toutput p2y\n);\n\t\n\tassign p1y = &{p1a, p1b, p1c} | &{p1d, p1e}; // Removed p1f from second AND\n\tassign p2y = &{p2a, p2b} | &{p2c, p2d};\n\t\nendmodule\n", "module top_module(\n\tinput p1a, \n\tinput p1b, \n\tinput p1c, \n\tinput p1d,\n\tinput p1e,\n\tinput p1f,\n\toutput p1y, \n\tinput p2a, \n\tinput p2b, \n\tinput p2c, \n\tinput p2d, \n\toutput p2y\n);\n\t\n\tassign p1y = &{p1a, p1b, p1c, p1d} | &{p1e, p1f}; // Added p1d to first AND, changing functionality\n\tassign p2y = &{p2a, p2b} | &{p2c, p2d};\n\t\nendmodule\n", "module top_module(\n\tinput p1a, \n\tinput p1b, \n\tinput p1c, \n\tinput p1d,\n\tinput p1e,\n\tinput p1f,\n\toutput p1y, \n\tinput p2a, \n\tinput p2b, \n\tinput p2c, \n\tinput p2d, \n\toutput p2y\n);\n\t\n\tassign p1y = &{p1a, p1b, p1c} | &{p1d, p1e, p1f};\n\tassign p2y = &{p2a} | &{p2c, p2d}; // Removed p2b from first AND\nendmodule\n", "module top_module(\n\tinput p1a, \n\tinput p1b, \n\tinput p1c, \n\tinput p1d,\n\tinput p1e,\n\tinput p1f,\n\toutput p1y, \n\tinput p2a, \n\tinput p2b, \n\tinput p2c, \n\tinput p2d, \n\toutput p2y\n);\n\t\n\tassign p1y = &{p1a, p1b, p1c} | &{p1d, p1e, p1f};\n\tassign p2y = &{p2a, p2b} | &{p2d}; // Removed p2c from second AND\nendmodule\n", "module top_module(\n\tinput p1a, \n\tinput p1b, \n\tinput p1c, \n\tinput p1d,\n\tinput p1e,\n\tinput p1f,\n\toutput p1y, \n\tinput p2a, \n\tinput p2b, \n\tinput p2c, \n\tinput p2d, \n\toutput p2y\n);\n\t\n\tassign p1y = &{p1a, p1c} | &{p1d, p1e, p1f}; // Removed p1b from first AND\n\tassign p2y = &{p2a, p2b} | &{p2c, p2d};\n\t\nendmodule\n"]}
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{"task_id": "wire", "mutants": ["module top_module(\n input in,\n output out);\n \n assign out = !in; // Changed: Negated input to output\n \nendmodule\n", "module top_module(\n input in,\n output reg out); // Changed: Output from wire to reg\n \n always @(in) begin\n out = in;\n end\n \nendmodule\n", "module top_module(\n input in,\n output out);\n \n assign out = in | 1'b0; // Changed: OR operation with 0\n \nendmodule\n", "module top_module(\n input in,\n output out);\n \n assign out = in & 1'b1; // Changed: AND operation with 1\n \nendmodule\n", "module top_module(\n input in,\n output out);\n \n assign out = in ^ 1'b0; // Changed: XOR operation with 0\n \nendmodule\n", "module top_module(\n input in,\n output out);\n \n assign out = in; // No change here for control comparison\n \nendmodule\n", "module top_module(\n input in,\n output out);\n \n assign out = ~in; // Changed: Complement of input to output\n \nendmodule\n", "module top_module(\n input in,\n output out);\n \n assign out = {in}; // Changed: Concatenation with itself (no actual change in functionality)\n \nendmodule\n", "module top_module(\n input in,\n output out);\n \n assign out = in >>> 1'b0; // Changed: Arithmetic right shift by 0\n \nendmodule\n", "module top_module(\n input in,\n output out);\n \n assign out = in << 1'b0; // Changed: Logical left shift by 0\n \nendmodule\n"]}
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{"task_id": "m2014_q4e", "mutants": ["module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = ~(in1 | in2); // Original: assign out = ~(in1 | in2); Modification: No change to demonstrate the original for comparison.\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = ~(in1 & in2); // Changed OR to AND\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = (in1 | in2); // Removed NOT operator\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = ~(in1 | in2) ^ 1'b1; // Added XOR with 1 after original operation\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = ~((in1 | in2) & 1'b1); // Added AND with 1 before NOT operator\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = ~((in1 | in2) | 1'b0); // Added OR with 0 before NOT operator\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = ~(in1); // Only considering in1 for the NOR operation\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = ~(in2); // Only considering in2 for the NOR operation\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = ~(in1 | in2 | in1); // Duplicated in1 in OR operation\nendmodule\n", "module top_module (\n\tinput in1,\n\tinput in2,\n\toutput logic out\n);\n\n\tassign out = ~((in1 & in2) | in2); // Combined AND with in2 and OR with in2\nendmodule\n"]}
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{"task_id": "m2014_q4h", "mutants": ["module top_module(\n\tinput in,\n\toutput out);\n\t\n\tassign out = ~in; // Negated the input signal\nendmodule\n", "module top_module(\n\tinput in,\n\toutput out);\n\t\n\tassign out = in & in; // AND operation with itself, essentially the same but logically different\nendmodule\n", "module top_module(\n\tinput in,\n\toutput out);\n\t\n\tassign out = in | in; // OR operation with itself, essentially the same but logically different\nendmodule\n", "module top_module(\n\tinput in,\n\toutput out);\n\t\n\twire internal; // Added an internal wire\n\tassign internal = in;\n\tassign out = internal; // Routed input through an internal wire before output\nendmodule\n", "module top_module(\n\tinput in,\n\toutput out);\n\t\n\tassign out = in ^ in; // XOR operation with itself, should result in 0\nendmodule\n", "module top_module(\n\tinput in,\n\toutput out);\n\t\n\tassign out = in; // Original line\n\t//Added redundant assignment which is functionally the same\n\tassign out = in;\nendmodule\n", "module top_module(\n\tinput in,\n\toutput out);\n\t\n\t// Change made to use a ternary operator, logically identical\n\tassign out = in ? 1'b1 : 1'b0;\nendmodule\n", "module top_module(\n\tinput in,\n\toutput out);\n\t\n\t// Negated the input, then negated it again\n\tassign out = ~(~in);\nendmodule\n", "module top_module(\n\tinput in,\n\toutput out);\n\t\n\t// Changed to add a delay to the assignment, may introduce simulation mismatches\n\tassign #1 out = in;\nendmodule\n", "module top_module(\n\tinput in,\n\toutput out);\n\t\n\t// Use of buffer operation via ANDing with 1, though logically unnecessary\n\tassign out = in & 1'b1;\nendmodule\n"]}
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