module top_module(
	input clk,
	input load,
	input ena,
	input [1:0] amount,
	input [63:0] data,
	output reg [63:0] q);

	always @(posedge clk) begin
		if (load)
			q <= data;
		else if (ena) case (amount)
			2'b00: q <= {q[62:0], 1'b1}; // Changed 1'b0 to 1'b1 for LSB in left shift by 1
			2'b01: q <= {q[55:0], 8'b0};
			2'b10: q <= {q[63], q[63:1]};
			2'b11: q <= {{8{q[63]}}, q[63:8]};
			default: q <= 64'hx;
		endcase
	end
endmodule

module top_module(
	input clk,
	input load,
	input ena,
	input [1:0] amount,
	input [63:0] data,
	output reg [63:0] q);

	always @(posedge clk) begin
		if (load)
			q <= data;
		else if (ena) case (amount)
			2'b00: q <= {q[62:0], 1'b0};
			2'b01: q <= {q[55:0], 8'hFF}; // Changed 8'b0 to 8'hFF for LSB in left shift by 8
			2'b10: q <= {q[63], q[63:1]};
			2'b11: q <= {{8{q[63]}}, q[63:8]};
			default: q <= 64'hx;
		endcase
	end
endmodule

module top_module(
	input clk,
	input load,
	input ena,
	input [1:0] amount,
	input [63:0] data,
	output reg [63:0] q);

	always @(posedge clk) begin
		if (load)
			q <= ~data; // Complement of data is loaded instead of data itself
		else if (ena) case (amount)
			2'b00: q <= {q[62:0], 1'b0};
			2'b01: q <= {q[55:0], 8'b0};
			2'b10: q <= {q[63], q[63:1]};
			2'b11: q <= {{8{q[63]}}, q[63:8]};
			default: q <= 64'hx;
		endcase
	end
endmodule

module top_module(
	input clk,
	input load,
	input ena,
	input [1:0] amount,
	input [63:0] data,
	output reg [63:0] q);

	always @(posedge clk) begin
		if (load)
			q <= data;
		else if (!ena) q <= q; // Added condition to maintain current state if 'ena' is low
		else case (amount)
			2'b00: q <= {q[62:0], 1'b0};
			2'b01: q <= {q[55:0], 8'b0};
			2'b10: q <= {q[63], q[63:1]};
			2'b11: q <= {{8{q[63]}}, q[63:8]};
			default: q <= 64'hx;
		endcase
	end
endmodule

module top_module(
	input clk,
	input load,
	input ena,
	input [1:0] amount,
	input [63:0] data,
	output reg [63:0] q);

	always @(posedge clk) begin
		if (load)
			q <= data;
		else if (ena) case (amount)
			2'b00: q <= {q[61:0], 2'b00}; // Shift left by 2 instead of 1
			2'b01: q <= {q[55:0], 8'b0};
			2'b10: q <= {q[63], q[63:1]};
			2'b11: q <= {{8{q[63]}}, q[63:8]};
			default: q <= 64'hx;
		endcase
	end
endmodule

module top_module(
	input clk,
	input load,
	input ena,
	input [1:0] amount,
	input [63:0] data,
	output reg [63:0] q);

	always @(posedge clk) begin
		if (load)
			q <= data;
		else if (ena) case (amount)
			2'b00: q <= {q[62:0], 1'b0};
			2'b01: q <= {q[55:0], 8'b0};
			2'b10: q <= {{1'b0}, q[63:1]}; // Changed MSB of right shift by 1 to 0
			2'b11: q <= {{8{q[63]}}, q[63:8]};
			default: q <= 64'hx;
		endcase
	end
endmodule

module top_module(
	input clk,
	input load,
	input ena,
	input [1:0] amount,
	input [63:0] data,
	output reg [63:0] q);

	always @(posedge clk) begin
		if (load)
			q <= data;
		else if (ena) case (amount)
			2'b00: q <= {q[62:0], 1'b0};
			2'b01: q <= {q[55:0], 8'b0};
			2'b10: q <= {q[63], q[63:1]};
			2'b11: q <= {{8{1'b0}}, q[63:8]}; // Changed replicated q[63] to 0 in right shift by 8
			default: q <= 64'hx;
		endcase
	end
endmodule

module top_module(
	input clk,
	input load,
	input ena,
	input [1:0] amount,
	input [63:0] data,
	output reg [63:0] q);

	always @(posedge clk) begin
		if (load)
			q <= data;
		else if (ena) case (amount)
			2'b00: q <= {q[63:0], 1'b0}; // Logically incorrect, attempting to concatenate beyond width
			2'b01: q <= {q[55:0], 8'b0};
			2'b10: q <= {q[63], q[63:1]};
			2'b11: q <= {{8{q[63]}}, q[63:8]};
			default: q <= 64'hx;
		endcase
	end
endmodule

module top_module(
	input clk,
	input load,
	input ena,
	input [1:0] amount,
	input [63:0] data,
	output reg [63:0] q);

	always @(posedge clk) begin
		if (load)
			q <= data;
		else if (ena) case (amount)
			2'b00: q <= {q[62:0], 1'b0};
			2'b01: q <= {q[56:0], 7'b0}; // Shift left by 7 instead of 8
			2'b10: q <= {q[63], q[63:1]};
			2'b11: q <= {{8{q[63]}}, q[63:8]};
			default: q <= 64'hx;
		endcase
	end
endmodule

module top_module(
	input clk,
	input load,
	input ena,
	input [1:0] amount,
	input [63:0] data,
	output reg [63:0] q);

	always @(posedge clk) begin
		if (load)
			q <= data;
		else if (ena) case (amount)
			2'b00: q <= {q[62:0], 1'b0};
			2'b01: q <= {q[55:0], 8'b0};
			2'b10: q <= {q[63], q[63:1]};
			2'b11: q <= {{8{q[63]}}, q[63:8]};
			default: q <= 64'bz; // Changed 64'hx (don't care) to 64'bz (high impedance)
		endcase
	end
endmodule


module top_module(
	input clk,
	input reset,
	input data,
	output start_shifting);

	parameter S=0, S1=1, S11=2, S110=3, Done=4;

	reg [2:0] state, next;

	always_comb begin
		case (state)
			S: next = data ? S1: S; // No change
			S1: next = data ? S11: S; // Changed from S to S1 (minor logical error)
			S11: next = data ? S11 : S110;
			S110: next = data ? Done : S;
			Done: next = Done;
		endcase
	end

	always @(posedge clk)
		if (reset) state <= S;
		else state <= next;

	assign start_shifting = state == Done;
endmodule

module top_module(
	input clk,
	input reset,
	input data,
	output start_shifting);

	parameter S=0, S1=1, S11=2, S110=3, Done=5; // Changed Done value from 4 to 5, affecting the encoding

	reg [2:0] state, next;

	always_comb begin
		case (state)
			S: next = data ? S1: S;
			S1: next = data ? S11: S;
			S11: next = data ? S11 : S110;
			S110: next = data ? Done : S;
			Done: next = Done;
		endcase
	end

	always @(posedge clk)
		if (reset) state <= S;
		else state <= next;

	assign start_shifting = state == Done;
endmodule

module top_module(
	input clk,
	input reset,
	input data,
	output start_shifting);

	parameter S=0, S1=1, S11=2, S110=3, Done=4;

	reg [3:0] state, next; // Changed reg bit width to [3:0] from [2:0]

	always_comb begin
		case (state)
			S: next = data ? S1: S;
			S1: next = data ? S11: S;
			S11: next = data ? S11 : S110;
			S110: next = data ? Done : S;
			Done: next = Done;
		endcase
	end

	always @(posedge clk)
		if (reset) state <= S;
		else state <= next;

	assign start_shifting = state == Done;
endmodule

module top_module(
	input clk,
	input reset,
	input data,
	output start_shifting);

	parameter S=0, S1=1, S11=2, S110=3, Done=4;

	reg [2:0] state, next;

	always_comb begin
		case (state)
			S: next = data ? S1: S;
			S1: next = data ? S11: S;
			S11: next = data ? S110 : S110; // Changed from S11 : S110 to S110 : S110 (logical error)
			S110: next = data ? Done : S;
			Done: next = Done;
		endcase
	end

	always @(posedge clk)
		if (reset) state <= S;
		else state <= next;

	assign start_shifting = state == Done;
endmodule

module top_module(
	input clk,
	input reset,
	input data,
	output start_shifting);

	parameter S=0, S1=1, S11=2, S110=3, Done=4;

	reg [2:0] state, next;

	always_comb begin
		case (state)
			S: next = data ? S1: S1; // Changed from data ? S1: S to S1: S1 (logical error)
			S1: next = data ? S11: S;
			S11: next = data ? S11 : S110;
			S110: next = data ? Done : S;
			Done: next = Done;
		endcase
	end

	always @(posedge clk)
		if (reset) state <= S;
		else state <= next;

	assign start_shifting = state == Done;
endmodule

module top_module(
	input clk,
	input reset,
	input data,
	output start_shifting);

	parameter S=0, S1=1, S11=2, S110=3, Done=4;

	reg [2:0] state, next;

	always_comb begin
		case (state)
			S: next = data ? S : S; // Changed from data ? S1: S to S : S (stalls in state S)
			S1: next = data ? S11: S;
			S11: next = data ? S11 : S110;
			S110: next = data ? Done : S;
			Done: next = Done;
		endcase
	end

	always @(posedge clk)
		if (reset) state <= S;
		else state <= next;

	assign start_shifting = state == Done;
endmodule

module top_module(
	input clk,
	input reset,
	input data,
	output start_shifting);

	parameter S=0, S1=1, S11=2, S110=3, Done=4;

	reg [2:0] state, next;

	always_comb begin
		case (state)
			S: next = data ? S1: S;
			S1: next = data ? S11: S;
			S11: next = data ? S11 : S110;
			S110: next = !data ? Done : S; // Changed from data ? Done : S to !data ? Done : S (logical inversion)
			Done: next = Done;
		endcase
	end

	always @(posedge clk)
		if (reset) state <= S;
		else state <= next;

	assign start_shifting = state == Done;
endmodule

module top_module(
	input clk,
	input reset,
	input data,
	output start_shifting);

	parameter S=0, S1=1, S11=2, S110=3, Done=4;

	reg [2:0] state, next;

	always_comb begin
		case (state)
			S: next = data ? S1: S;
			S1: next = !data ? S11: S; // Changed from data ? S11: S to !data ? S11: S (logical inversion)
			S11: next = data ? S11 : S110;
			S110: next = data ? Done : S;
			Done: next = Done;
		endcase
	end

	always @(posedge clk)
		if (reset) state <= S;
		else state <= next;

	assign start_shifting = state == Done;
endmodule

module top_module(
	input clk,
	input reset,
	input data,
	output start_shifting);

	parameter S=0, S1=1, S11=2, S110=3, Done=4;

	reg [2:0] state, next;

	always_comb begin
		case (state)
			S: next = data ? S1: S;
			S1: next = data ? S11: S;
			S11: next = data ? S : S110; // Changed from data ? S11 : S110 to data ? S : S110 (logical error)
			S110: next = data ? Done : S;
			Done: next = Done;
		endcase
	end

	always @(posedge clk)
		if (reset) state <= S;
		else state <= next;

	assign start_shifting = state == Done;
endmodule

module top_module(
	input clk,
	input reset,
	input data,
	output start_shifting);

	parameter S=0, S1=1, S11=2, S110=3, Done=4;

	reg [2:0] state, next;

	always_comb begin
		case (state)
			S: next = data ? S1: S;
			S1: next = data ? S11: S;
			S11: next = data ? S11 : S110;
			S110: next = data ? S : Done; // Changed from data ? Done : S to data ? S : Done (swap error and done conditions)
			Done: next = Done;
		endcase
	end

	always @(posedge clk)
		if (reset) state <= S;
		else state <= next;

	assign start_shifting = state == Done;
endmodule


module top_module (
	input clk,
	input d,
	input ar,
	output logic q
);

	always@(posedge clk or posedge ar) begin
		if (ar)
			q <= 1; // Changed reset value to 1 instead of 0
		else
			q <= d;
	end

endmodule

module top_module (
	input clk,
	input d,
	input ar,
	output logic q
);

	always@(posedge clk or posedge ar) begin
		if (!ar) // Changed condition to negate "ar"
			q <= 0;
		else
			q <= d;
	end

endmodule

module top_module (
	input clk,
	input d,
	input ar,
	output logic q
);

	always@(posedge clk or posedge ar) begin
		if (ar)
			q <= 0;
		else
			q <= !d; // Changed data assignment to the negation of "d"
	end

endmodule

module top_module (
	input clk,
	input d,
	input ar,
	output logic q
);

	always@(posedge clk or negedge ar) begin // Changed sensitivity to negedge of "ar" instead of posedge
		if (ar)
			q <= 0;
		else
			q <= d;
	end

endmodule

module top_module (
	input clk,
	input d,
	input ar,
	output logic q
);

	always@(posedge clk) begin // Removed "ar" from sensitivity list
		if (ar)
			q <= 0;
		else
			q <= d;
	end

endmodule

module top_module (
	input clk,
	input d,
	input ar,
	output logic q
);

	always@(posedge clk or posedge ar) begin
		if (ar)
			q <= 0;
		else
			q <= d; // No change, commented out for demonstration
		// This is actually the original logic, wrongly indicated as a mutation for illustration.
	end

endmodule

module top_module (
	input clk,
	input d,
	input ar,
	output logic q
);

	always@(posedge clk or posedge ar) begin
		if (ar)
			q <= 0;
		else
			q <= d & ar; // Changed assignment to "d" AND "ar"
	end

endmodule

module top_module (
	input clk,
	input d,
	input ar,
	output logic q
);

	always@(posedge clk or posedge ar) begin
		if (ar)
			q <= 0;
		else
			q <= d | ar; // Changed assignment to "d" OR "ar"
	end

endmodule

module top_module (
	input clk,
	input d,
	input ar,
	output logic q
);

	always@(posedge clk or posedge ar) begin
		// Added dummy logic that does not affect functionality
		if (ar)
			q <= 0;
		else if (!ar)
			q <= d;
		else
			q <= d; // Unnecessary else case
	end

endmodule

module top_module (
	input clk,
	input d,
	input ar,
	output logic q
);

	always@(posedge clk or posedge ar) begin
		if (ar)
			q <= 0;
		else
			q <= d ^ ar; // Changed assignment to "d" XOR "ar"
	end

endmodule


module top_module(
	input clk,
	input shift_ena,
	input count_ena,
	input data,
	output reg [3:0] q);

	always @(posedge clk) begin
		if (shift_ena)
			q <= { q[2:0], data }; // Changed from q[2:0] to q[3:1], incorrect shifting
		else if (count_ena)
			q <= q - 1'b1;
	end

endmodule

module top_module(
	input clk,
	input shift_ena,
	input count_ena,
	input data,
	output reg [3:0] q);

	always @(posedge clk) begin
		if (shift_ena)
			q <= { q[2:1], data, q[0] }; // Changed bits position in the concatenation
		else if (count_ena)
			q <= q - 1'b1;
	end

endmodule

module top_module(
	input clk,
	input shift_ena,
	input count_ena,
	input data,
	output reg [3:0] q);

	always @(posedge clk) begin
		if (shift_ena)
			q <= { q[2:0], data };
		else if (count_ena)
			q <= q - 1'b0; // Changed the decrement value to 0, no decrement
	end

endmodule

module top_module(
	input clk,
	input shift_ena,
	input count_ena,
	input data,
	output reg [3:0] q);

	always @(posedge clk) begin
		if (shift_ena)
			q <= { q[2:0], !data }; // Inverted the data bit
		else if (count_ena)
			q <= q - 1'b1;
	end

endmodule

module top_module(
	input clk,
	input shift_ena,
	input count_ena,
	input data,
	output reg [3:0] q);

	always @(posedge clk) begin
		if (shift_ena)
			q <= { data, q[3:1] }; // Shifted in the data at the MSB, wrong shifting direction
		else if (count_ena)
			q <= q - 1'b1;
	end

endmodule

module top_module(
	input clk,
	input shift_ena,
	input count_ena,
	input data,
	output reg [3:0] q);

	always @(posedge clk) begin
		if (shift_ena)
			q <= { q[1:0], data, q[3] }; // Altered bit positions in concatenation
		else if (count_ena)
			q <= q - 1'b1;
	end

endmodule

module top_module(
	input clk,
	input shift_ena,
	input count_ena,
	input data,
	output reg [3:0] q);

	always @(posedge clk) begin
		if (shift_ena)
			q <= { q[3], q[2:0] }; // Incorrectly shifted q[3] into q[3] again
		else if (count_ena)
			q <= q - 1'b1;
	end

endmodule

module top_module(
	input clk,
	input shift_ena,
	input count_ena,
	input data,
	output reg [3:0] q);

	always @(posedge clk) begin
		if (shift_ena)
			q <= { q[2:0], 1'b0 }; // Shifted in a 0 instead of data
		else if (count_ena)
			q <= q - 1'b1;
	end

endmodule

module top_module(
	input clk,
	input shift_ena,
	input count_ena,
	input data,
	output reg [3:0] q);

	always @(posedge clk) begin
		if (shift_ena)
			q <= { q[2:0], data };
		else if (count_ena)
			q <= q + 1'b1; // Changed to increment instead of decrement
	end

endmodule

module top_module(
	input clk,
	input shift_ena,
	input count_ena,
	input data,
	output reg [3:0] q);

	always @(posedge clk) begin
		if (shift_ena)
			q <= { 2'b10, q[1:0] }; // Changed to shift in a constant value at the MSB
		else if (count_ena)
			q <= q - 1'b1;
	end

endmodule


module top_module(
	input clk,
	input [7:0] d,
	input areset,
	output reg [7:0] q);

	always @(posedge clk, posedge areset)
		if (areset)
			q <= 8'hFF; // Change: Reset value changed from 0 to 255 (0xFF)
		else
			q <= d;

endmodule

module top_module(
	input clk,
	input [7:0] d,
	input areset,
	output reg [7:0] q);

	always @(posedge clk, negedge areset) // Change: Trigger on negative edge of areset instead of positive
		if (!areset)
			q <= 0;
		else
			q <= d;

endmodule

module top_module(
	input clk,
	input [7:0] d,
	input areset,
	output reg [7:0] q);

	always @(posedge clk) // Change: Removed posedge areset from sensitivity list
		if (areset)
			q <= 0;
		else
			q <= d;

endmodule

module top_module(
	input clk,
	input [7:0] d,
	input areset,
	output reg [7:0] q);

	always @(posedge clk, posedge areset)
		if (areset)
			q <= 0;
		else
			q <= d[7:0]; // Redundant change: Explicitly specifying the full range of d

endmodule

module top_module(
	input clk,
	input [6:0] d, // Change: Width of d reduced to 7 bits
	input areset,
	output reg [7:0] q);

	always @(posedge clk, posedge areset)
		if (areset)
			q <= 0;
		else
			q <= {1'b0, d}; // Adding a leading zero to keep q's width consistent

endmodule

module top_module(
	input clk,
	input [7:0] d,
	input areset,
	output reg [7:1] q); // Change: Width of q reduced to 7 bits

	always @(posedge clk, posedge areset)
		if (areset)
			q <= 0;
		else
			q <= d[7:1]; // Ignoring the LSB of d

endmodule

module top_module(
	input clk,
	input [7:0] d,
	input areset,
	output reg [7:0] q);

	always @(posedge clk, posedge areset)
		if (areset)
			q <= 1; // Change: Reset value changed from 0 to 1
		else
			q <= d;

endmodule

module top_module(
	input clk,
	input [7:0] d,
	input areset,
	output reg [7:0] q);

	always @(posedge clk, posedge areset)
		if (areset)
			q <= 0;
		else
			q <= d ^ 8'hFF; // Change: Inverting d before assignment to q

endmodule

module top_module(
	input clk,
	input [7:0] d,
	input areset,
	output reg [7:0] q);

	always @(posedge clk, posedge areset)
		if (areset)
			q <= 0;
		else
			q <= {d[6:0], d[7]}; // Change: Circular rotate right by 1

endmodule

module top_module(
	input clk,
	input [7:0] d,
	input areset,
	output reg [7:0] q);

	always @(posedge clk, posedge areset)
		if (areset)
			q <= 0;
		else
			q[7:1] <= d[6:0]; // Change: Assigning only lower 7 bits of d to higher 7 bits of q
			q[0] <= d[7]; // Assigning MSB of d to LSB of q

endmodule


module top_module(
	input clk,
	input reset,
	output reg [31:0] q);

	logic [31:0] q_next;
	always@(q) begin
		q_next = q[31:1];
		q_next[31] = q[0];
		q_next[22] ^= q[0]; // Changed the tap from 21 to 22, which is incorrect per the original spec.
		q_next[1] ^= q[0];
		q_next[0] ^= q[0];
	end

	always @(posedge clk) begin
		if (reset)
			q <= 32'h1;
		else
			q <= q_next;
	end
endmodule

module top_module(
	input clk,
	input reset,
	output reg [31:0] q);

	logic [31:0] q_next;
	always@(q) begin
		q_next = q[31:0]; // Removed the shift operation making q_next[31:1] equal to q[31:0].
		q_next[31] = q[0];
		q_next[21] ^= q[0];
		q_next[1] ^= q[0];
		q_next[0] ^= q[0];
	end

	always @(posedge clk) begin
		if (reset)
			q <= 32'h1;
		else
			q <= q_next;
	end
endmodule

module top_module(
	input clk,
	input reset,
	output reg [31:0] q);

	logic [31:0] q_next;
	always@(q) begin
		q_next = q[31:1];
		q_next[31] = ~q[0]; // Inverted the q[0] value.
		q_next[21] ^= q[0];
		q_next[1] ^= q[0];
		q_next[0] ^= q[0];
	end

	always @(posedge clk) begin
		if (reset)
			q <= 32'h1;
		else
			q <= q_next;
	end
endmodule

module top_module(
	input clk,
	input reset,
	output reg [31:0] q);

	logic [31:0] q_next;
	always@(q) begin
		q_next = q[31:1];
		q_next[31] = q[0];
		q_next[21] ^= q[0];
		q_next[2] ^= q[0]; // Changed the position to 2, which is already a tap, so no effective change in the logic.
		q_next[0] ^= q[0];
	end

	always @(posedge clk) begin
		if (reset)
			q <= 32'h1;
		else
			q <= q_next;
	end
endmodule

module top_module(
	input clk,
	input reset,
	output reg [31:0] q);

	logic [31:0] q_next;
	always@(q) begin
		q_next = q[31:1];
		q_next[31] = q[0];
		q_next[21] ^= q[0];
		q_next[1] ^= ~q[0]; // Inverted the XOR operation input.
		q_next[0] ^= q[0];
	end

	always @(posedge clk) begin
		if (reset)
			q <= 32'h1;
		else
			q <= q_next;
	end
endmodule

module top_module(
	input clk,
	input reset,
	output reg [31:0] q);

	logic [31:0] q_next;
	always@(q) begin
		q_next = q[31:1];
		q_next[31] = q[0];
		q_next[21] ^= q[0];
		q_next[1] ^= q[0];
		q_next[0] ^= ~q[0]; // Inverted the XOR operation input for the last bit.
	end

	always @(posedge clk) begin
		if (reset)
			q <= 32'h1;
		else
			q <= q_next;
	end
endmodule

module top_module(
	input clk,
	input reset,
	output reg [31:0] q);

	logic [31:0] q_next;
	always@(posedge clk) begin // Changed the sensitivity list from @(q) to @(posedge clk).
		q_next = q[31:1];
		q_next[31] = q[0];
		q_next[21] ^= q[0];
		q_next[1] ^= q[0];
		q_next[0] ^= q[0];
		if (reset)
			q <= 32'h1;
		else
			q <= q_next;
	end
endmodule

module top_module(
	input clk,
	input reset,
	output reg [31:0] q);

	logic [31:0] q_next;
	always@(reset) begin // Changed the sensitivity list to only trigger on reset.
		q_next = q[31:1];
		q_next[31] = q[0];
		q_next[21] ^= q[0];
		q_next[1] ^= q[0];
		q_next[0] ^= q[0];
	end

	always @(posedge clk) begin
		if (reset)
			q <= 32'h1;
		else
			q <= q_next;
	end
endmodule

module top_module(
	input clk,
	input reset,
	output reg [31:0] q);

	logic [31:0] q_next;
	always@(q) begin
		q_next = {q[30:0], q[31]}; // Swapped the positions, effectively shifting the register the wrong way.
		q_next[31] = q[0];
		q_next[21] ^= q[0];
		q_next[1] ^= q[0];
		q_next[0] ^= q[0];
	end

	always @(posedge clk) begin
		if (reset)
			q <= 32'h1;
		else
			q <= q_next;
	end
endmodule

module top_module(
	input clk,
	input reset,
	output reg [31:0] q);

	logic [31:0] q_next;
	always@(q) begin
		q_next = q[31:1];
		q_next[30] = q[0]; // Incorrectly assigned q[0] to q_next[30] instead of q_next[31].
		q_next[21] ^= q[0];
		q_next[1] ^= q[0];
		q_next[0] ^= q[0];
	end

	always @(posedge clk) begin
		if (reset)
			q <= 32'h1;
		else
			q <= q_next;
	end
endmodule


module top_module (
	input clk,
	input w,
	input R,
	input E,
	input L,
	output reg Q
);

	always @(posedge clk)
		if (L)
			Q <= R; // Original: Q <= R; Mutant: no change, serves as a base for comparison.
		else if (E)
			Q <= !w; // Change: Negated the input w.

endmodule

module top_module (
	input clk,
	input w,
	input R,
	input E,
	input L,
	output reg Q
);

	always @(posedge clk)
		if (!L) // Change: Negated the condition for L.
			Q <= R;
		else if (E)
			Q <= w;

endmodule

module top_module (
	input clk,
	input w,
	input R,
	input E,
	input L,
	output reg Q
);

	always @(posedge clk)
		if (L)
			Q <= !R; // Change: Negated the input R.
		else if (E)
			Q <= w;

endmodule

module top_module (
	input clk,
	input w,
	input R,
	input E,
	input L,
	output reg Q
);

	always @(posedge clk)
		if (L)
			Q <= R;
		else if (!E) // Change: Negated the condition for E.
			Q <= w;

endmodule

module top_module (
	input clk,
	input w,
	input R,
	input E,
	input L,
	output reg Q
);

	always @(posedge clk)
		if (L)
			Q <= R;
		else if (E)
			Q <= Q; // Change: Q is assigned to itself instead of w.

endmodule

module top_module (
	input clk,
	input w,
	input R,
	input E,
	input L,
	output reg Q
);

	always @(posedge clk)
		if (L)
			Q <= R;
		else if (E) // Original condition
			Q <= w; // Original action
		// Change: Added a redundant else statement that does nothing.
		else
			Q <= Q;

endmodule

module top_module (
	input clk,
	input w,
	input R,
	input E,
	input L,
	output reg Q
);

	always @(posedge clk)
		if (L)
			Q <= w; // Change: The value of Q is set to w instead of R when L is asserted.
		else if (E)
			Q <= w;

endmodule

module top_module (
	input clk,
	input w,
	input R,
	input E,
	input L,
	output reg Q
);

	always @(posedge clk)
		if (L)
			Q <= R;
		else if (E)
			Q <= R; // Change: The value of Q is set to R instead of w when E is asserted.

endmodule

module top_module (
	input clk,
	input w,
	input R,
	input E,
	input L,
	output reg Q
);

	// Change: Removed the always block thereby making Q constant.
endmodule

module top_module (
	input clk,
	input w,
	input R,
	input E,
	input L,
	output reg Q
);

	always @(posedge clk)
		if (L)
			Q <= R;
		else if (E)
			Q <= 1'b0; // Change: The value of Q is set to a constant 0 when E is asserted.

endmodule


module top_module(
	input clk,
	input a,
	input b,
	output out_assign,
	output reg out_always_comb,
	output reg out_always_ff
);

	assign out_assign = a ^ b;
	always @(*) out_always_comb = a ^ b;
	always @(posedge clk) out_always_ff <= a & b; // Changed XOR to AND for out_always_ff
endmodule

module top_module(
	input clk,
	input a,
	input b,
	output out_assign,
	output reg out_always_comb,
	output reg out_always_ff
);

	assign out_assign = a ^ b;
	always @(*) out_always_comb = a | b; // Changed XOR to OR for out_always_comb
	always @(posedge clk) out_always_ff <= a ^ b;
endmodule

module top_module(
	input clk,
	input a,
	input b,
	output out_assign,
	output reg out_always_comb,
	output reg out_always_ff
);

	assign out_assign = a & b; // Changed XOR to AND for out_assign
	always @(*) out_always_comb = a ^ b;
	always @(posedge clk) out_always_ff <= a ^ b;
endmodule

module top_module(
	input clk,
	input a,
	input b,
	output out_assign,
	output reg out_always_comb,
	output reg out_always_ff
);

	assign out_assign = a ^ b;
	always @(*) out_always_comb = ~(a ^ b); // Added inversion to out_always_comb
	always @(posedge clk) out_always_ff <= a ^ b;
endmodule

module top_module(
	input clk,
	input a,
	input b,
	output out_assign,
	output reg out_always_comb,
	output reg out_always_ff
);

	assign out_assign = a ^ b;
	always @(*) out_always_comb = a ^ b;
	always @(posedge clk) out_always_ff <= ~(a ^ b); // Added inversion to out_always_ff
endmodule

module top_module(
	input clk,
	input a,
	input b,
	output out_assign,
	output reg out_always_comb,
	output reg out_always_ff
);

	assign out_assign = a ^~ b; // Added inversion to b for out_assign
	always @(*) out_always_comb = a ^ b;
	always @(posedge clk) out_always_ff <= a ^ b;
endmodule

module top_module(
	input clk,
	input a,
	input b,
	output out_assign,
	output reg out_always_comb,
	output reg out_always_ff
);

	assign out_assign = a ^ b;
	always @(*) out_always_comb = a ^~ b; // Added inversion to b for out_always_comb
	always @(posedge clk) out_always_ff <= a ^ b;
endmodule

module top_module(
	input clk,
	input a,
	input b,
	output out_assign,
	output reg out_always_comb,
	output reg out_always_ff
);

	assign out_assign = a ^ b;
	always @(*) out_always_comb = a ^ b;
	always @(posedge clk) out_always_ff <= a ^~ b; // Added inversion to b for out_always_ff
endmodule

module top_module(
	input clk,
	input a,
	input b,
	output out_assign,
	output reg out_always_comb,
	output reg out_always_ff
);

	assign out_assign = a ~^ b; // Changed XOR to XNOR for out_assign
	always @(*) out_always_comb = a ^ b;
	always @(posedge clk) out_always_ff <= a ^ b;
endmodule

module top_module(
	input clk,
	input a,
	input b,
	output out_assign,
	output reg out_always_comb,
	output reg out_always_ff
);

	assign out_assign = a ^ b;
	always @(*) out_always_comb = a ~^ b; // Changed XOR to XNOR for out_always_comb
	always @(posedge clk) out_always_ff <= a ^ b;
endmodule


module top_module(
	input clk,
	input reset,
	output [3:1] ena,
	output reg [15:0] q);

	wire [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
	assign ena = enable[3:1];
	always @(posedge clk)
		for (int i=0;i<4;i++) begin
			if (reset || (q[i*4 +:4] == 9 && enable[i]))
				q[i*4 +:4] <= 0;
			else if (enable[i])
				q[i*4 +:4] <= q[i*4 +:4]+1;
		end

endmodule

module top_module(
	input clk,
	input reset,
	output [3:1] ena,
	output reg [15:0] q);

	wire [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
	assign ena = enable[3:1];
	always @(posedge clk)
		for (int i=0;i<4;i++) begin
			if (reset || (q[i*4 +:4] == 9 && enable[i]))
				q[i*4 +:4] <= 0;
			else if (enable[i])
				q[i*4 +:4] <= q[i*4 +:4]+1;
		end

endmodule

module top_module(
	input clk,
	input reset,
	output [3:1] ena,
	output reg [15:0] q);

	wire [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
	assign ena = enable[3:1];
	always @(posedge clk)
		for (int i=0;i<4;i++) begin
			if (reset || (q[i*4 +:4] == 9 && enable[i]))
				q[i*4 +:4] <= 0;
			else if (enable[i])
				q[i*4 +:4] <= q[i*4 +:4]+1;
		end

endmodule

module top_module(
	input clk,
	input reset,
	output [3:1] ena,
	output reg [15:0] q);

	wire [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
	assign ena = enable[3:1];
	always @(posedge clk)
		for (int i=0;i<4;i++) begin
			if (reset || (q[i*4 +:4] == 9 && enable[i]))
				q[i*4 +:4] <= 0;
			else if (enable[i])
				q[i*4 +:4] <= q[i*4 +:4]+1;
		end

endmodule

module top_module(
	input clk,
	input reset,
	output [3:1] ena,
	output reg [15:0] q);

	wire [3:0] enable = { q[11:0]==12'h999, q[7:0]==8'h99, q[3:0] == 4'h9, 1'b1};
	assign ena = enable[3:1];
	always @(posedge clk)
		for (int i=0;i<3;i++) begin // Changed loop limit from 4 to 3
			if (reset || (q[i*4 +:4] == 9 && enable[i]))
				q[i*4 +:4] <= 0;
			else if (enable[i])
				q[i*4 +:4] <= q[i*4 +:4]+1;
		end

endmodule

module top_module(
	input clk,
	input reset,
	output [3:1] ena,
	output reg [15:0] q);

	wire [3:0] enable = { q[11:0]==12'h999, q[7:0]==8'h99, q[3:0] == 4'h9, 1'b1};
	assign ena = enable[3:1];
	always @(posedge clk)
		for (int i=0;i<4;i++) begin
			if (reset || (q[i*4 +:4] == 8 && enable[i])) // Changed comparison value from 9 to 8
				q[i*4 +:4] <= 0;
			else if (enable[i])
				q[i*4 +:4] <= q[i*4 +:4]+1;
		end

endmodule

module top_module(
	input clk,
	input reset,
	output [3:1] ena,
	output reg [15:0] q);

	wire [3:0] enable = { q[11:0]==12'h999, q[7:0]==8'h99, q[3:0] == 4'h9, 1'b1};
	assign ena = enable[3:1];
	always @(posedge clk)
		for (int i=1;i<4;i++) begin // Changed loop start from 0 to 1
			if (reset || (q[i*4 +:4] == 9 && enable[i]))
				q[i*4 +:4] <= 0;
			else if (enable[i])
				q[i*4 +:4] <= q[i*4 +:4]+1;
		end

endmodule

module top_module(
	input clk,
	input reset,
	output [3:1] ena,
	output reg [15:0] q);

	wire [3:0] enable = { q[11:0]==12'h999, q[7:0]==8'h99, q[3:0] == 4'h9, 1'b1};
	assign ena = enable[2:0]; // Changed enable[3:1] to enable[2:0]
	always @(posedge clk)
		for (int i=0;i<4;i++) begin
			if (reset || (q[i*4 +:4] == 9 && enable[i]))
				q[i*4 +:4] <= 0;
			else if (enable[i])
				q[i*4 +:4] <= q[i*4 +:4]+1;
		end

endmodule

module top_module(
	input clk,
	input reset,
	output [3:1] ena,
	output reg [15:0] q);

	wire [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
	assign ena = enable[3:1];
	always @(posedge clk)
		for (int i=0;i<4;i++) begin
			if (reset || (q[i*4 +:4] == 9 && enable[i]))
				q[i*4 +:4] <= 0;
			else if (enable[i])
				q[i*4 +:4] <= q[i*4 +:4]+1;
		end

endmodule

module top_module(
	input clk,
	input reset,
	output [3:1] ena,
	output reg [15:0] q);

	wire [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
	assign ena = enable[3:1];
	always @(posedge clk)
		for (int i=0;i<4;i++) begin
			if (reset || (q[i*4 +:4] == 9 && enable[i]))
				q[i*4 +:4] <= 0;
			else if (enable[i])
				q[i*4 +:4] <= q[i*4 +:4]+1;
		end

endmodule


module top_module(
	input [3:1] y,
	input w,
	output reg Y2);

	always_comb begin
		case ({y, w})
			4'h0: Y2 = 1'b0; // No change
			4'h1: Y2 = 1'b0; // No change
			4'h2: Y2 = 1'b1; // No change
			4'h3: Y2 = 1'b1; // No change
			4'h4: Y2 = 1'b0; // No change
			4'h5: Y2 = 1'b1; // No change
			4'h6: Y2 = 1'b0; // No change
			4'h7: Y2 = 1'b1; // Changed 0 to 1
			4'h8: Y2 = 1'b0; // No change
			4'h9: Y2 = 1'b1; // No change
			4'ha: Y2 = 1'b1; // No change
			4'hb: Y2 = 1'b1; // No change
			default: Y2 = 1'bx;
		endcase
	end
endmodule

module top_module(
	input [3:1] y,
	input w,
	output reg Y2);

	always_comb begin
		case ({y, w})
			4'h0: Y2 = 1'b0; // No change
			4'h1: Y2 = 1'b1; // Changed 0 to 1
			4'h2: Y2 = 1'b1; // No change
			4'h3: Y2 = 1'b1; // No change
			4'h4: Y2 = 1'b0; // No change
			4'h5: Y2 = 1'b1; // No change
			4'h6: Y2 = 1'b0; // No change
			4'h7: Y2 = 1'b0; // No change
			4'h8: Y2 = 1'b0; // No change
			4'h9: Y2 = 1'b1; // No change
			4'ha: Y2 = 1'b1; // No change
			4'hb: Y2 = 1'b1; // No change
			default: Y2 = 1'bx;
		endcase
	end
endmodule

module top_module(
	input [3:1] y,
	input w,
	output reg Y2);

	always_comb begin
		case ({y, w})
			4'h0: Y2 = 1'b0; // No change
			4'h1: Y2 = 1'b0; // No change
			4'h2: Y2 = 1'b0; // Changed 1 to 0
			4'h3: Y2 = 1'b1; // No change
			4'h4: Y2 = 1'b0; // No change
			4'h5: Y2 = 1'b1; // No change
			4'h6: Y2 = 1'b0; // No change
			4'h7: Y2 = 1'b0; // No change
			4'h8: Y2 = 1'b0; // No change
			4'h9: Y2 = 1'b1; // No change
			4'ha: Y2 = 1'b1; // No change
			4'hb: Y2 = 1'b1; // No change
			default: Y2 = 1'bx;
		endcase
	end
endmodule

module top_module(
	input [3:1] y,
	input w,
	output reg Y2);

	always_comb begin
		case ({y, w})
			4'h0: Y2 = 1'b1; // Changed 0 to 1
			4'h1: Y2 = 1'b0; // No change
			4'h2: Y2 = 1'b1; // No change
			4'h3: Y2 = 1'b1; // No change
			4'h4: Y2 = 1'b0; // No change
			4'h5: Y2 = 1'b1; // No change
			4'h6: Y2 = 1'b0; // No change
			4'h7: Y2 = 1'b0; // No change
			4'h8: Y2 = 1'b0; // No change
			4'h9: Y2 = 1'b1; // No change
			4'ha: Y2 = 1'b1; // No change
			4'hb: Y2 = 1'b1; // No change
			default: Y2 = 1'bx;
		endcase
	end
endmodule

module top_module(
	input [3:1] y,
	input w,
	output reg Y2);

	always_comb begin
		case ({y, w})
			4'h0: Y2 = 1'b0; // No change
			4'h1: Y2 = 1'b0; // No change
			4'h2: Y2 = 1'b1; // No change
			4'h3: Y2 = 1'b1; // No change
			4'h4: Y2 = 1'b1; // Changed 0 to 1
			4'h5: Y2 = 1'b1; // No change
			4'h6: Y2 = 1'b0; // No change
			4'h7: Y2 = 1'b0; // No change
			4'h8: Y2 = 1'b0; // No change
			4'h9: Y2 = 1'b1; // No change
			4'ha: Y2 = 1'b1; // No change
			4'hb: Y2 = 1'b1; // No change
			default: Y2 = 1'bx;
		endcase
	end
endmodule

module top_module(
	input [3:1] y,
	input w,
	output reg Y2);

	always_comb begin
		case ({y, w})
			4'h0: Y2 = 1'b0; // No change
			4'h1: Y2 = 1'b0; // No change
			4'h2: Y2 = 1'b1; // No change
			4'h3: Y2 = 1'b1; // No change
			4'h4: Y2 = 1'b0; // No change
			4'h5: Y2 = 1'b0; // Changed 1 to 0
			4'h6: Y2 = 1'b0; // No change
			4'h7: Y2 = 1'b0; // No change
			4'h8: Y2 = 1'b0; // No change
			4'h9: Y2 = 1'b1; // No change
			4'ha: Y2 = 1'b1; // No change
			4'hb: Y2 = 1'b1; // No change
			default: Y2 = 1'bx;
		endcase
	end
endmodule

module top_module(
	input [3:1] y,
	input w,
	output reg Y2);

	always_comb begin
		case ({y, w})
			4'h0: Y2 = 1'b0; // No change
			4'h1: Y2 = 1'b0; // No change
			4'h2: Y2 = 1'b1; // No change
			4'h3: Y2 = 1'b0; // Changed 1 to 0
			4'h4: Y2 = 1'b0; // No change
			4'h5: Y2 = 1'b1; // No change
			4'h6: Y2 = 1'b0; // No change
			4'h7: Y2 = 1'b0; // No change
			4'h8: Y2 = 1'b0; // No change
			4'h9: Y2 = 1'b1; // No change
			4'ha: Y2 = 1'b1; // No change
			4'hb: Y2 = 1'b1; // No change
			default: Y2 = 1'bx;
		endcase
	end
endmodule

module top_module(
	input [3:1] y,
	input w,
	output reg Y2);

	always_comb begin
		case ({y, w})
			4'h0: Y2 = 1'b0; // No change
			4'h1: Y2 = 1'b0; // No change
			4'h2: Y2 = 1'b1; // No change
			4'h3: Y2 = 1'b1; // No change
			4'h4: Y2 = 1'b0; // No change
			4'h5: Y2 = 1'b1; // No change
			4'h6: Y2 = 1'b1; // Changed 0 to 1
			4'h7: Y2 = 1'b0; // No change
			4'h8: Y2 = 1'b0; // No change
			4'h9: Y2 = 1'b1; // No change
			4'ha: Y2 = 1'b1; // No change
			4'hb: Y2 = 1'b1; // No change
			default: Y2 = 1'bx;
		endcase
	end
endmodule

module top_module(
	input [3:1] y,
	input w,
	output reg Y2);

	always_comb begin
		case ({y, w})
			4'h0: Y2 = 1'b0; // No change
			4'h1: Y2 = 1'b0; // No change
			4'h2: Y2 = 1'b1; // No change
			4'h3: Y2 = 1'b1; // No change
			4'h4: Y2 = 1'b0; // No change
			4'h5: Y2 = 1'b1; // No change
			4'h6: Y2 = 1'b0; // No change
			4'h7: Y2 = 1'b0; // No change
			4'h8: Y2 = 1'b1; // Changed 0 to 1
			4'h9: Y2 = 1'b1; // No change
			4'ha: Y2 = 1'b1; // No change
			4'hb: Y2 = 1'b1; // No change
			default: Y2 = 1'bx; // No change
		endcase
	end
endmodule

module top_module(
	input [3:1] y,
	input w,
	output reg Y2);

	always_comb begin
		case ({y, w})
			4'h0: Y2 = 1'b0; // No change
			4'h1: Y2 = 1'b0; // No change
			4'h2: Y2 = 1'b1; // No change
			4'h3: Y2 = 1'b1; // No change
			4'h4: Y2 = 1'b0; // No change
			4'h5: Y2 = 1'b1; // No change
			4'h6: Y2 = 1'b0; // No change
			4'h7: Y2 = 1'b0; // No change
			4'h8: Y2 = 1'b0; // No change
			4'h9: Y2 = 1'b0; // Changed 1 to 0
			4'ha: Y2 = 1'b1; // No change
			4'hb: Y2 = 1'b1; // No change
			default: Y2 = 1'bx;
		endcase
	end
endmodule


module top_module(
	input ring,
	input vibrate_mode,
	output ringer,
	output motor
);

	assign ringer = ring & ~vibrate_mode; // No change
	assign motor = ring | vibrate_mode; // Changed & to | for motor assignment

endmodule

module top_module(
	input ring,
	input vibrate_mode,
	output ringer,
	output motor
);

	assign ringer = ring | ~vibrate_mode; // Changed & to | for ringer assignment
	assign motor = ring & vibrate_mode; // No change

endmodule

module top_module(
	input ring,
	input vibrate_mode,
	output ringer,
	output motor
);

	assign ringer = ring ^ ~vibrate_mode; // Changed & to ^ for ringer assignment
	assign motor = ring & vibrate_mode; // No change

endmodule

module top_module(
	input ring,
	input vibrate_mode,
	output ringer,
	output motor
);

	assign ringer = ring & ~vibrate_mode; // No change
	assign motor = ring ^ vibrate_mode; // Changed & to ^ for motor assignment

endmodule

module top_module(
	input ring,
	input vibrate_mode,
	output ringer,
	output motor
);

	assign ringer = ~ring & ~vibrate_mode; // Added ~ before ring for ringer assignment
	assign motor = ring & vibrate_mode; // No change

endmodule

module top_module(
	input ring,
	input vibrate_mode,
	output ringer,
	output motor
);

	assign ringer = ring & ~vibrate_mode; // No change
	assign motor = ~ring & vibrate_mode; // Added ~ before ring for motor assignment

endmodule

module top_module(
	input ring,
	input vibrate_mode,
	output ringer,
	output motor
);

	assign ringer = ring & vibrate_mode; // Changed ~vibrate_mode to vibrate_mode for ringer assignment
	assign motor = ring & vibrate_mode; // No change

endmodule

module top_module(
	input ring,
	input vibrate_mode,
	output ringer,
	output motor
);

	assign ringer = ring & ~vibrate_mode; // No change
	assign motor = !ring & vibrate_mode; // Changed & to & and ring to !ring for motor assignment

endmodule

module top_module(
	input ring,
	input vibrate_mode,
	output ringer,
	output motor
);

	assign ringer = !ring & ~vibrate_mode; // Changed ring to !ring for ringer assignment
	assign motor = ring & vibrate_mode; // No change

endmodule

module top_module(
	input ring,
	input vibrate_mode,
	output ringer,
	output motor
);

	assign ringer = ring & ~vibrate_mode; // No change
	assign motor = ring & !vibrate_mode; // Changed vibrate_mode to !vibrate_mode for motor assignment

endmodule


module top_module(
	input a,
	input b,
	output out_assign,
	output reg out_alwaysblock
);

	assign out_assign = a & b; // No change
	always @(a) out_alwaysblock = a & b; // Changed from always @(*) to always @(a)

endmodule

module top_module(
	input a,
	input b,
	output out_assign,
	output reg out_alwaysblock
);

	assign out_assign = a | b; // Changed & to |
	always @(*) out_alwaysblock = a & b; // No change

endmodule

module top_module(
	input a,
	input b,
	output out_assign,
	output reg out_alwaysblock
);

	assign out_assign = a & b; // No change
	always @(*) out_alwaysblock = a | b; // Changed & to |

endmodule

module top_module(
	input a,
	input b,
	output out_assign,
	output reg out_alwaysblock
);

	assign out_assign = ~a & b; // Added NOT operation to a
	always @(*) out_alwaysblock = a & b; // No change

endmodule

module top_module(
	input a,
	input b,
	output out_assign,
	output reg out_alwaysblock
);

	assign out_assign = a & b; // No change
	always @(*) out_alwaysblock = ~a & b; // Added NOT operation to a

endmodule

module top_module(
	input a,
	input b,
	output out_assign,
	output reg out_alwaysblock
);

	assign out_assign = a & ~b; // Added NOT operation to b
	always @(*) out_alwaysblock = a & b; // No change

endmodule

module top_module(
	input a,
	input b,
	output out_assign,
	output reg out_alwaysblock
);

	assign out_assign = a & b; // No change
	always @(*) out_alwaysblock = a & ~b; // Added NOT operation to b

endmodule

module top_module(
	input a,
	input b,
	output out_assign,
	output reg out_alwaysblock
);

	assign out_assign = a & b; // No change
	always @(b) out_alwaysblock = a & b; // Changed from always @(*) to always @(b)

endmodule

module top_module(
	input a,
	input b,
	output out_assign,
	output reg out_alwaysblock
);

	assign out_assign = a ^ b; // Changed & to ^
	always @(*) out_alwaysblock = a & b; // No change

endmodule

module top_module(
	input a,
	input b,
	output out_assign,
	output reg out_alwaysblock
);

	assign out_assign = a & b; // No change
	always @(*) out_alwaysblock = a ^ b; // Changed & to ^

endmodule


module top_module(
	output zero);

	assign zero = ~1'b1; // Changed 1'b0 to ~1'b1

endmodule

module top_module(
	output zero);

	assign zero = 1'b0 & 1'b1; // Added an AND operation with 1

endmodule

module top_module(
	output zero);

	assign zero = 1'b0 | 1'b0; // Added an OR operation with 0

endmodule

module top_module(
	output zero);

	assign zero = 0; // Changed 1'b0 to 0

endmodule

module top_module(
	output zero);

	assign zero = 1'b0 ^ 1'b0; // Added an XOR operation with 0

endmodule


module top_module (
    input [31:0] in,
    output [31:0] out
);

    assign out = {in[15:8], in[7:0], in[23:16], in[31:24]}; // Swapped first two bytes

endmodule

module top_module (
    input [31:0] in,
    output [31:0] out
);

    assign out = {in[7:0], in[15:8], in[31:24], in[23:16]}; // Swapped last two bytes

endmodule

module top_module (
    input [31:0] in,
    output [31:0] out
);

    assign out = {in[7:0], in[23:16], in[15:8], in[31:24]}; // Moved the third byte to the second position

endmodule

module top_module (
    input [31:0] in,
    output [31:0] out
);

    assign out = {in[7:0], in[15:8], in[22:16], in[31:24]}; // Shortened the third byte by one bit

endmodule

module top_module (
    input [31:0] in,
    output [31:0] out
);

    assign out = {in[6:0], in[15:8], in[23:16], in[31:24]}; // Shortened the first byte by one bit

endmodule


module top_module(
	input x,
	input y,
	output z);

	assign z = (x^y) & y; // Change: replaced 'x' with 'y' in the expression
endmodule

module top_module(
	input x,
	input y,
	output z);

	assign z = (x^y) | x; // Change: replaced '&' with '|'
endmodule

module top_module(
	input x,
	input y,
	output reg z); // Change: 'output' type changed from wire to reg

	always @(x or y) begin
		z = (x^y) & x;
	end
endmodule

module top_module(
	input x,
	input y,
	output z);

	assign z = (~x^y) & x; // Change: added '~' to 'x' in the expression
endmodule

module top_module(
	input x,
	input y,
	output z);

	assign z = (x^~y) & x; // Change: added '~' to 'y' in the expression
endmodule

module top_module(
	input x,
	input y,
	output z);

	assign z = (x^y) & ~x; // Change: added '~' to the second 'x' in the expression
endmodule

module top_module(
	input x,
	input y,
	output z);

	assign z = (x^y); // Change: removed '& x' from the expression
endmodule

module top_module(
	input x,
	input y,
	output z);

	assign z = x; // Change: simplified the expression to just 'x'
endmodule

module top_module(
	input x,
	input y,
	output z);

	assign z = y; // Change: simplified the expression to just 'y'
endmodule

module top_module(
	input x,
	input y,
	output z);

	assign z = (x^y) ^ x; // Change: replaced '&' with '^' for a different operation
endmodule


module top_module (
	input [15:0] in,
	output [7:0] out_hi,
	output [7:0] out_lo
);

	assign {out_hi, out_lo} = {in[15:8], in[7:0]}; // Changed to explicit bit selection, no functional change.

endmodule

module top_module (
	input [15:0] in,
	output [7:0] out_hi,
	output [7:0] out_lo
);

	assign {out_hi, out_lo} = {in[7:0], in[15:8]}; // Swapped high and low byte assignments.

endmodule

module top_module (
	input [15:0] in,
	output [7:0] out_hi,
	output [7:0] out_lo
);

	assign out_hi = in[14:7]; // Change upper byte range.
	assign out_lo = in[6:0]; // Change lower byte range, losing 1 bit.

endmodule

module top_module (
	input [15:0] in,
	output [7:0] out_hi,
	output [7:0] out_lo
);

	assign out_hi = in[15:8];
	assign out_lo = in[8:1]; // Shifted lower byte to the right by 1 bit.

endmodule

module top_module (
	input [15:0] in,
	output [7:0] out_hi,
	output [7:0] out_lo
);

	assign out_hi = in[15:8] ^ 8'hFF; // Inverted the bits of out_hi.
	assign out_lo = in[7:0];

endmodule

module top_module (
	input [15:0] in,
	output [7:0] out_hi,
	output [7:0] out_lo
);

	assign out_hi = in[15:8];
	assign out_lo = in[7:0] & 8'hFF; // Logical AND with 0xFF, no functional change but adds redundancy.

endmodule

module top_module (
	input [15:0] in,
	output [7:0] out_hi,
	output [7:0] out_lo
);

	assign out_hi = in[15:8] | 8'h00; // Logical OR with 0x00, no functional change but adds redundancy.
	assign out_lo = in[7:0];

endmodule

module top_module (
	input [15:0] in,
	output [7:0] out_hi,
	output [7:0] out_lo
);

	assign out_hi = {1'b0, in[15:9]}; // Removed the MSB of out_hi and replaced with 0.
	assign out_lo = in[7:0];

endmodule

module top_module (
	input [15:0] in,
	output [7:0] out_hi,
	output [7:0] out_lo
);

	assign out_hi = {in[14:8], 1'b0}; // Removed the LSB of the original out_hi and appended 0 at the end.
	assign out_lo = in[7:0];

endmodule

module top_module (
	input [15:0] in,
	output [7:0] out_hi,
	output [7:0] out_lo
);

	assign out_hi = in[15:8];
	assign out_lo = {2'b00, in[6:1]}; // Reduced out_lo range and padded with 2'b00.

endmodule


module top_module(
    input a,
    input b,
    output out
);

    assign out = ~(a & b); // Changed | to &

endmodule

module top_module(
    input a,
    input b,
    output out
);

    assign out = ~(a | b | a); // Added an extra 'a' in the NOR operation

endmodule

module top_module(
    input a,
    input b,
    output out
);

    assign out = ~(a | b) & a; // Added an AND operation with 'a'

endmodule

module top_module(
    input a,
    input b,
    output out
);

    assign out = ~(a | b) | a; // Added an OR operation with 'a'

endmodule

module top_module(
    input a,
    input b,
    output reg out // Changed output type to reg
);

    always @(a or b) begin
        out = ~(a | b); // Changed assign to always block
    end

endmodule

module top_module(
    input a,
    input b,
    output out
);

    assign out = ~((a | b) ^ a); // Added an XOR operation with 'a'

endmodule

module top_module(
    input a,
    input b,
    output out
);

    assign out = ~(a | b) ^ b; // Added an XOR operation with 'b'

endmodule

module top_module(
    input a,
    input b,
    output out
);

    assign out = ~((a | b) & b); // Changed the NOR operation to include an AND with 'b'

endmodule

module top_module(
    input a,
    input b,
    output out
);

    assign out = ~((a | b) | a); // Changed the NOR operation to include an OR with 'a'

endmodule

module top_module(
    input a,
    input b,
    output out
);

    assign out = ~(a ^ b); // Changed | to ^ for XOR operation

endmodule


module top_module (
	input [6:1] y,
	input w,
	output Y2,
	output Y4
);
	assign Y2 = y[1]&w; // Changed ~w to w
	assign Y4 = (y[2]|y[3]|y[5]|y[6]) & w;
endmodule

module top_module (
	input [6:1] y,
	input w,
	output Y2,
	output Y4
);
	assign Y2 = y[1]&~w;
	assign Y4 = (y[2]&y[3]|y[5]|y[6]) & w; // Changed | to & for y[2] and y[3]
endmodule

module top_module (
	input [6:1] y,
	input w,
	output Y2,
	output Y4
);
	assign Y2 = y[1]&~w;
	assign Y4 = (y[2]|y[3]|y[4]|y[5]|y[6]) & w; // Added y[4] in the equation
endmodule

module top_module (
	input [6:1] y,
	input w,
	output Y2,
	output Y4
);
	assign Y2 = y[1]|~w; // Changed & to |
	assign Y4 = (y[2]|y[3]|y[5]|y[6]) & w;
endmodule

module top_module (
	input [6:1] y,
	input w,
	output Y2,
	output Y4
);
	assign Y2 = y[1]&~w;
	assign Y4 = (y[1]|y[2]|y[3]|y[5]|y[6]) & w; // Added y[1] in the equation
endmodule

module top_module (
	input [6:1] y,
	input w,
	output Y2,
	output Y4
);
	assign Y2 = y[2]&~w; // Changed y[1] to y[2]
	assign Y4 = (y[2]|y[3]|y[5]|y[6]) & w;
endmodule

module top_module (
	input [6:1] y,
	input w,
	output Y2,
	output Y4
);
	assign Y2 = y[1]&~w;
	assign Y4 = !(y[2]|y[3]|y[5]|y[6]) & w; // Added negation ! in front of the equation
endmodule

module top_module (
	input [6:1] y,
	input w,
	output Y2,
	output Y4
);
	assign Y2 = (y[1]&y[6])&~w; // Added y[6] in conjunction with y[1]
	assign Y4 = (y[2]|y[3]|y[5]|y[6]) & w;
endmodule

module top_module (
	input [6:1] y,
	input w,
	output Y2,
	output Y4
);
	assign Y2 = y[1]&~w;
	assign Y4 = (y[2]|y[3]|y[5]) & w; // Removed y[6] from the equation
endmodule

module top_module (
	input [6:1] y,
	input w,
	output Y2,
	output Y4
);
	assign Y2 = ~y[1]&~w; // Added negation ~ in front of y[1]
	assign Y4 = (y[2]|y[3]|y[5]|y[6]) & w;
endmodule


module top_module (
	input [255:0] in,
	input [7:0] sel,
	output  out
);

	assign out = in[sel ^ 1'b1]; // Modification: XOR sel with 1 to slightly change selection logic

endmodule

module top_module (
	input [255:0] in,
	input [7:0] sel,
	output  out
);

	assign out = in[sel] & 1'b1; // Modification: AND the output with 1 (logically same but adds an operation)

endmodule

module top_module (
	input [255:0] in,
	input [7:0] sel,
	output  out
);

	assign out = in[sel | 1'b0]; // Modification: OR sel with 0 (no change in logic, but adds an operation)

endmodule

module top_module (
	input [255:0] in,
	input [7:0] sel,
	output  out
);

	assign out = ~in[sel]; // Modification: Negate the selected output

endmodule

module top_module (
	input [255:0] in,
	input [7:0] sel,
	output  out
);

	assign out = in[sel + 1'b1]; // Modification: Select the next bit instead of the current one

endmodule

module top_module (
	input [255:0] in,
	input [7:0] sel,
	output  out
);

	assign out = in[sel - 1'b1]; // Modification: Select the previous bit instead of the current one

endmodule

module top_module (
	input [255:0] in,
	input [7:0] sel,
	output  out
);

	assign out = in[255 - sel]; // Modification: Invert selection order

endmodule

module top_module (
	input [255:0] in,
	input [7:0] sel,
	output  out
);

	assign out = in[sel] || 1'b0; // Modification: OR the output with 0 (no logical change, but adds an operation)

endmodule

module top_module (
	input [255:0] in,
	input [7:0] sel,
	output  out
);

	assign out = (in[sel] == 1'b1) ? 1'b0 : 1'b1; // Modification: Output the opposite value of the selected input

endmodule

module top_module (
	input [255:0] in,
	input [7:0] sel,
	output  out
);

	assign out = in[sel & 255]; // Modification: AND sel with 255 (no change in logic since sel is 8 bits)

endmodule


module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = c | b; // Minor change: no change (control example, not a valid mutant).

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = c & b; // Changed | to &

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = c | b | d; // Added d to the expression

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = ~c | b; // Complemented c

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = c | ~b; // Complemented b

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = (c | b) & d; // Added d with an AND operation

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = c | (b & a); // Added a with an AND operation to b

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = (c ^ b); // Changed | to ^ (XOR operation)

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = !(c | b); // Negated the entire expression

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = c & b & d; // Changed | to & and added d

endmodule


module top_module (
	input [3:0] a,
	input [3:0] b,
	input [3:0] c,
	input [3:0] d,
	input [3:0] e,
	output reg [3:0] q
);

	always @(*)
		case (c)
			0: q = b; // No change
			1: q = e; // No change
			2: q = a; // No change
			3: q = d; // No change
			default: q = 4'hf; // No change
		endcase
endmodule
// Note: No actual change made, serving as a control.

module top_module (
	input [3:0] a,
	input [3:0] b,
	input [3:0] c,
	input [3:0] d,
	input [3:0] e,
	output reg [3:0] q
);

	always @(*)
		case (c)
			0: q = b;
			1: q = e;
			2: q = d; // Changed from q = a to q = d
			3: q = d;
			default: q = 4'hf;
		endcase
endmodule

module top_module (
	input [3:0] a,
	input [3:0] b,
	input [3:0] c,
	input [3:0] d,
	input [3:0] e,
	output reg [3:0] q
);

	always @(*)
		case (c)
			0: q = b;
			1: q = e;
			2: q = a;
			3: q = d;
			default: q = 4'he; // Changed default to 4'he
		endcase
endmodule

module top_module (
	input [3:0] a,
	input [3:0] b,
	input [3:0] c,
	input [3:0] d,
	input [3:0] e,
	output reg [3:0] q
);

	always @(*)
		case (c)
			0: q = a; // Changed from q = b to q = a
			1: q = e;
			2: q = a;
			3: q = d;
			default: q = 4'hf;
		endcase
endmodule

module top_module (
	input [3:0] a,
	input [3:0] b,
	input [3:0] c,
	input [3:0] d,
	input [3:0] e,
	output reg [3:0] q
);

	always @(*)
		case (c)
			0: q = b;
			1: q = d; // Changed from q = e to q = d
			2: q = a;
			3: q = d;
			default: q = 4'hf;
		endcase
endmodule

module top_module (
	input [3:0] a,
	input [3:0] b,
	input [3:0] c,
	input [3:0] d,
	input [3:0] e,
	output reg [3:0] q
);

	always @(*)
		case (c)
			0: q = b;
			1: q = e;
			2: q = a;
			3: q = a; // Changed from q = d to q = a
			default: q = 4'hf;
		endcase
endmodule

module top_module (
	input [3:0] a,
	input [3:0] b,
	input [3:0] c,
	input [3:0] d,
	input [3:0] e,
	output reg [3:0] q
);

	always @(*)
		case (c)
			0: q = e; // Changed from q = b to q = e
			1: q = e;
			2: q = a;
			3: q = d;
			default: q = 4'hf;
		endcase
endmodule

module top_module (
	input [3:0] a,
	input [3:0] b,
	input [3:0] c,
	input [3:0] d,
	input [3:0] e,
	output reg [3:0] q
);

	always @(*)
		case (c)
			0: q = b;
			1: q = e;
			2: q = e; // Changed from q = a to q = e
			3: q = d;
			default: q = 4'hf;
		endcase
endmodule

module top_module (
	input [3:0] a,
	input [3:0] b,
	input [3:0] c,
	input [3:0] d,
	input [3:0] e,
	output reg [3:0] q
);

	always @(*)
		case (c)
			0: q = b;
			1: q = a; // Changed from q = e to q = a
			2: q = a;
			3: q = d;
			default: q = 4'hf;
		endcase
endmodule

module top_module (
	input [3:0] a,
	input [3:0] b,
	input [3:0] c,
	input [3:0] d,
	input [3:0] e,
	output reg [3:0] q
);

	always @(*)
		case (c)
			0: q = b;
			1: q = e;
			2: q = a;
			3: q = e; // Changed from q = d to q = e
			default: q = 4'hf;
		endcase
endmodule


module top_module (
	input sel,
	input [7:0] a,
	input [7:0] b,
	output reg [7:0] out
);

    assign out = sel ? b : a; // Changed the ternary operator operands
endmodule

module top_module (
	input sel,
	input [7:0] a,
	input [7:0] b,
	output reg [7:0] out
);

    assign out = sel ? a : b; // No change in logic; changed 'assign' to 'always @(sel or a or b)'
    always @(sel or a or b) begin
        out = sel ? a : b;
    end
endmodule

module top_module (
	input sel,
	input [7:0] a,
	input [7:0] b,
	output reg [7:0] out
);

    assign out = sel ? a[7:0] : b[7:0]; // Explicitly specified bit range, though no functional change
endmodule

module top_module (
	input sel,
	input [7:0] a,
	input [7:0] b,
	output reg [7:0] out
);

    assign out = sel ? a : b ^ 8'hFF; // Added bitwise NOT to b
endmodule

module top_module (
	input sel,
	input [7:0] a,
	input [7:0] b,
	output reg [7:0] out
);

    assign out = sel ? a & 8'hFF : b; // Added bitwise AND with FF to a
endmodule

module top_module (
	input sel,
	input [7:0] a,
	input [7:0] b,
	output reg [7:0] out
);

    assign out = (sel & sel) ? a : b; // Redundantly used 'sel & sel'
endmodule

module top_module (
	input sel,
	input [7:0] a,
	input [7:0] b,
	output reg [7:0] out
);

    assign out = (~sel) ? a : b; // Used '~sel' instead of 'sel'
endmodule

module top_module (
	input sel,
	input [7:0] a,
	input [7:0] b,
	output reg [7:0] out
);

    assign out = sel ? {a[3:0], a[7:4]} : b; // Swapped nibbles of 'a'
endmodule

module top_module (
	input sel,
	input [7:0] a,
	input [7:0] b,
	output reg [7:0] out
);

    assign out = sel ? a : {b[3:0], b[7:4]}; // Swapped nibbles of 'b'
endmodule

module top_module (
	input sel,
	input [7:0] a,
	input [7:0] b,
	output reg [7:0] out
);

    assign out = sel ? {a[6:0], a[7]} : b; // Circular shift left by 1 on 'a'
endmodule


module top_module (
	input [7:0] a,
	input [7:0] b,
	output [7:0] s,
	output overflow
);

	wire [8:0] sum = a+b; // No change
	assign s = sum[8:1]; // Changed from sum[7:0] to sum[8:1]
	assign overflow = !(a[7]^b[7]) && (a[7] != s[7]);

endmodule

module top_module (
	input [7:0] a,
	input [7:0] b,
	output [7:0] s,
	output overflow
);

	wire [8:0] sum = a+b; // No change
	assign s = sum[7:0]; // No change
	assign overflow = (a[7]^b[7]) && (a[7] != s[7]); // Changed ! to remove negation
endmodule

module top_module (
	input [7:0] a,
	input [7:0] b,
	output [7:0] s,
	output overflow
);

	wire [8:0] sum = a-b; // Changed from a+b to a-b
	assign s = sum[7:0];
	assign overflow = !(a[7]^b[7]) && (a[7] != s[7]);

endmodule

module top_module (
	input [7:0] a,
	input [7:0] b,
	output [7:0] s,
	output overflow
);

	wire [8:0] sum = a+b; // No change
	assign s = sum[7:0]; // No change
	assign overflow = !(a[7]^b[7]) && (a[7] == s[7]); // Changed != to ==

endmodule

module top_module (
	input [7:0] a,
	input [7:0] b,
	output [7:0] s,
	output overflow
);

	wire [9:0] sum = a+b; // Changed wire [8:0] to wire [9:0]
	assign s = sum[7:0];
	assign overflow = !(a[7]^b[7]) && (a[7] != s[7]);

endmodule

module top_module (
	input [7:0] a,
	input [7:0] b,
	output [7:0] s,
	output overflow
);

	wire [8:0] sum = {1'b0, a} + {1'b0, b}; // Added 0 extension to operands
	assign s = sum[7:0];
	assign overflow = !(a[7]^b[7]) && (a[7] != s[7]);

endmodule

module top_module (
	input [7:0] a,
	input [7:0] b,
	output [7:0] s,
	output overflow
);

	wire [8:0] sum = a+b; // No change
	assign s = {sum[6:0], 1'b0}; // Changed output to shift right with LSB as 0
	assign overflow = !(a[7]^b[7]) && (a[7] != s[7]);

endmodule

module top_module (
	input [7:0] a,
	input [7:0] b,
	output [7:0] s,
	output overflow
);

	wire [8:0] sum = a&b; // Changed operator to &
	assign s = sum[7:0];
	assign overflow = !(a[7]^b[7]) && (a[7] != s[7]);

endmodule

module top_module (
	input [7:0] a,
	input [7:0] b,
	output [7:0] s,
	output overflow
);

	wire [8:0] sum = a|b; // Changed operator to |
	assign s = sum[7:0];
	assign overflow = !(a[7]^b[7]) && (a[7] != s[7]);

endmodule

module top_module (
	input [7:0] a,
	input [7:0] b,
	output [7:0] s,
	output overflow
);

	wire [8:0] sum = a+b; // No change
	assign s = ~sum[7:0]; // Inverted the sum bits
	assign overflow = !(a[7]^b[7]) && (a[7] != s[7]);

endmodule


module top_module(
    input d,
    input done_counting,
    input ack,
    input [9:0] state,    // 10-bit one-hot current state
    output B3_next,
    output S_next,
    output S1_next,
    output Count_next,
    output Wait_next,
    output done,
    output counting,
    output shift_ena
 );

	parameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;

	assign B3_next = state[B1]; // Mutation: Changed from state[B2] to state[B1]
	assign S_next = state[S]&~d | state[S1]&~d | state[S110]&~d | state[Wait]&ack;
	assign S1_next = state[S]&d;
	assign Count_next = state[B3] | state[Count]&~done_counting;
	assign Wait_next = state[Count]&done_counting | state[Wait]&~ack;

	assign done = state[Wait];
	assign counting = state[Count];
	assign shift_ena = |state[B3:B0];

endmodule

module top_module(
    input d,
    input done_counting,
    input ack,
    input [9:0] state,    // 10-bit one-hot current state
    output B3_next,
    output S_next,
    output S1_next,
    output Count_next,
    output Wait_next,
    output done,
    output counting,
    output shift_ena
 );

	parameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;

	assign B3_next = state[B2];
	assign S_next = state[S]&~d | state[S1]&~d | state[S110]&~d | state[Wait]&~ack; // Mutation: Changed ack to ~ack
	assign S1_next = state[S]&d;
	assign Count_next = state[B3] | state[Count]&~done_counting;
	assign Wait_next = state[Count]&done_counting | state[Wait]&~ack;

	assign done = state[Wait];
	assign counting = state[Count];
	assign shift_ena = |state[B3:B0];

endmodule

module top_module(
    input d,
    input done_counting,
    input ack,
    input [9:0] state,    // 10-bit one-hot current state
    output B3_next,
    output S_next,
    output S1_next,
    output Count_next,
    output Wait_next,
    output done,
    output counting,
    output shift_ena
 );

	parameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;

	assign B3_next = state[B2];
	assign S_next = state[S]&~d | state[S1]&~d | state[S110]&~d | state[Wait]&ack;
	assign S1_next = state[S]&~d; // Mutation: Changed d to ~d
	assign Count_next = state[B3] | state[Count]&~done_counting;
	assign Wait_next = state[Count]&done_counting | state[Wait]&~ack;

	assign done = state[Wait];
	assign counting = state[Count];
	assign shift_ena = |state[B3:B0];

endmodule

module top_module(
    input d,
    input done_counting,
    input ack,
    input [9:0] state,    // 10-bit one-hot current state
    output B3_next,
    output S_next,
    output S1_next,
    output Count_next,
    output Wait_next,
    output done,
    output counting,
    output shift_ena
 );

	parameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;

	assign B3_next = state[B2];
	assign S_next = state[S]&~d | state[S1]&~d | state[S110]&~d | state[Wait]&ack;
	assign S1_next = state[S]&d;
	assign Count_next = state[B3] | state[Count]&done_counting; // Mutation: Changed ~done_counting to done_counting
	assign Wait_next = state[Count]&done_counting | state[Wait]&~ack;

	assign done = state[Wait];
	assign counting = state[Count];
	assign shift_ena = |state[B3:B0];

endmodule

module top_module(
    input d,
    input done_counting,
    input ack,
    input [9:0] state,    // 10-bit one-hot current state
    output B3_next,
    output S_next,
    output S1_next,
    output Count_next,
    output Wait_next,
    output done,
    output counting,
    output shift_ena
 );

	parameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;

	assign B3_next = state[B2];
	assign S_next = state[S]&~d | state[S1]&~d | state[S110]&~d | state[Wait]&ack;
	assign S1_next = state[S]&d;
	assign Count_next = state[B3] | state[Count]&~done_counting;
	assign Wait_next = state[Count]&done_counting | state[Wait]&ack; // Mutation: Changed ~ack to ack

	assign done = state[Wait];
	assign counting = state[Count];
	assign shift_ena = |state[B3:B0];

endmodule

module top_module(
    input d,
    input done_counting,
    input ack,
    input [9:0] state,    // 10-bit one-hot current state
    output B3_next,
    output S_next,
    output S1_next,
    output Count_next,
    output Wait_next,
    output done,
    output counting,
    output shift_ena
 );

	parameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;

	assign B3_next = state[B2];
	assign S_next = state[S]&d | state[S1]&~d | state[S110]&~d | state[Wait]&ack; // Mutation: Changed state[S]&~d to state[S]&d
	assign S1_next = state[S]&d;
	assign Count_next = state[B3] | state[Count]&~done_counting;
	assign Wait_next = state[Count]&done_counting | state[Wait]&~ack;

	assign done = state[Wait];
	assign counting = state[Count];
	assign shift_ena = |state[B3:B0];

endmodule

module top_module(
    input d,
    input done_counting,
    input ack,
    input [9:0] state,    // 10-bit one-hot current state
    output B3_next,
    output S_next,
    output S1_next,
    output Count_next,
    output Wait_next,
    output done,
    output counting,
    output shift_ena
 );

	parameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;

	assign B3_next = state[B2];
	assign S_next = state[S]&~d | state[S1]&~d | state[S110]&d | state[Wait]&ack; // Mutation: Changed state[S110]&~d to state[S110]&d
	assign S1_next = state[S]&d;
	assign Count_next = state[B3] | state[Count]&~done_counting;
	assign Wait_next = state[Count]&done_counting | state[Wait]&~ack;

	assign done = state[Wait];
	assign counting = state[Count];
	assign shift_ena = |state[B3:B0];

endmodule

module top_module(
    input d,
    input done_counting,
    input ack,
    input [9:0] state,    // 10-bit one-hot current state
    output B3_next,
    output S_next,
    output S1_next,
    output Count_next,
    output Wait_next,
    output done,
    output counting,
    output shift_ena
 );

	parameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;

	assign B3_next = state[B2];
	assign S_next = state[S]&~d | state[S1]&~d | state[S110]&~d | state[Wait]&ack;
	assign S1_next = state[S]&d;
	assign Count_next = state[B3] | state[Count]&~done_counting;
	assign Wait_next = state[Count]&~done_counting | state[Wait]&~ack; // Mutation: Changed done_counting to ~done_counting in Wait_next

	assign done = state[Wait];
	assign counting = state[Count];
	assign shift_ena = |state[B3:B0];

endmodule

module top_module(
    input d,
    input done_counting,
    input ack,
    input [9:0] state,    // 10-bit one-hot current state
    output B3_next,
    output S_next,
    output S1_next,
    output Count_next,
    output Wait_next,
    output done,
    output counting,
    output shift_ena
 );

	parameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;

	assign B3_next = state[B2];
	assign S_next = state[S]&~d | state[S1]&d | state[S110]&~d | state[Wait]&ack; // Mutation: Changed state[S1]&~d to state[S1]&d
	assign S1_next = state[S]&d;
	assign Count_next = state[B3] | state[Count]&~done_counting;
	assign Wait_next = state[Count]&done_counting | state[Wait]&~ack;

	assign done = state[Wait];
	assign counting = state[Count];
	assign shift_ena = |state[B3:B0];

endmodule

module top_module(
    input d,
    input done_counting,
    input ack,
    input [9:0] state,    // 10-bit one-hot current state
    output B3_next,
    output S_next,
    output S1_next,
    output Count_next,
    output Wait_next,
    output done,
    output counting,
    output shift_ena
 );

	parameter S=0, S1=1, S11=2, S110=3, B0=4, B1=5, B2=6, B3=7, Count=8, Wait=9;

	assign B3_next = state[B2];
	assign S_next = state[S]&~d | state[S1]&~d | state[S110]&~d | state[Wait]&ack;
	assign S1_next = state[S]&d;
	assign Count_next = state[B3] | state[Count]&done_counting; // Mutation: Changed ~done_counting to done_counting, same as mutant 4 but in a different position
	assign Wait_next = state[Count]&done_counting | state[Wait]&~ack;

	assign done = state[Wait];
	assign counting = state[Count];
	assign shift_ena = |state[B3:B0];

endmodule


module top_module (
	input [7:0] in,
	output reg [2:0] pos
);

	always @(*) begin
		casez (in)
			default : pos = 2'h0; // No change
			8'bzzzzzzz1: pos = 3'h0; // No change
			8'bzzzzzz1z: pos = 3'h1; // No change
			8'bzzzzz1zz: pos = 3'h2; // No change
			8'bzzzz1zzz: pos = 3'h3; // No change
			8'bzzz1zzzz: pos = 3'h4; // No change
			8'bzz1zzzzz: pos = 3'h5; // No change
			8'bz1zzzzzz: pos = 3'h6; // No change
			8'b1zzzzzzz: pos = 3'h6; // Changed pos = 3'h7 to pos = 3'h6
		endcase
	end

endmodule

module top_module (
	input [7:0] in,
	output reg [2:0] pos
);

	always @(*) begin
		casez (in)
			default : pos = 2'h1; // Changed default case to pos = 2'h1
			8'bzzzzzzz1: pos = 3'h0; // No change
			8'bzzzzzz1z: pos = 3'h1; // No change
			8'bzzzzz1zz: pos = 3'h2; // No change
			8'bzzzz1zzz: pos = 3'h3; // No change
			8'bzzz1zzzz: pos = 3'h4; // No change
			8'bzz1zzzzz: pos = 3'h5; // No change
			8'bz1zzzzzz: pos = 3'h6; // No change
			8'b1zzzzzzz: pos = 3'h7; // No change
		endcase
	end

endmodule

module top_module (
	input [7:0] in,
	output reg [2:0] pos
);

	always @(*) begin
		casez (in)
			default : pos = 2'h0; // No change
			8'bzzzzzzz1: pos = 3'h0; // No change
			8'bzzzzzz1z: pos = 3'h1; // No change
			8'bzzzzz1zz: pos = 3'h1; // Changed pos = 3'h2 to pos = 3'h1
			8'bzzzz1zzz: pos = 3'h3; // No change
			8'bzzz1zzzz: pos = 3'h4; // No change
			8'bzz1zzzzz: pos = 3'h5; // No change
			8'bz1zzzzzz: pos = 3'h6; // No change
			8'b1zzzzzzz: pos = 3'h7; // No change
		endcase
	end

endmodule

module top_module (
	input [7:0] in,
	output reg [2:0] pos
);

	always @(*) begin
		casez (in)
			default : pos = 2'h0; // No change
			8'bzzzzzzz1: pos = 3'h0; // No change
			8'bzzzzzz1z: pos = 3'h1; // No change
			8'bzzzzz1zz: pos = 3'h2; // No change
			8'bzzzz1zzz: pos = 3'h2; // Changed pos = 3'h3 to pos = 3'h2
			8'bzzz1zzzz: pos = 3'h4; // No change
			8'bzz1zzzzz: pos = 3'h5; // No change
			8'bz1zzzzzz: pos = 3'h6; // No change
			8'b1zzzzzzz: pos = 3'h7; // No change
		endcase
	end

endmodule

module top_module (
	input [7:0] in,
	output reg [2:0] pos
);

	always @(*) begin
		casez (in)
			default : pos = 2'h0; // No change
			8'bzzzzzzz1: pos = 3'h1; // Changed pos = 3'h0 to pos = 3'h1
			8'bzzzzzz1z: pos = 3'h1; // No change
			8'bzzzzz1zz: pos = 3'h2; // No change
			8'bzzzz1zzz: pos = 3'h3; // No change
			8'bzzz1zzzz: pos = 3'h4; // No change
			8'bzz1zzzzz: pos = 3'h5; // No change
			8'bz1zzzzzz: pos = 3'h6; // No change
			8'b1zzzzzzz: pos = 3'h7; // No change
		endcase
	end

endmodule

module top_module (
	input [7:0] in,
	output reg [2:0] pos
);

	always @(*) begin
		casez (in)
			default : pos = 2'h0; // No change
			8'bzzzzzzz1: pos = 3'h0; // No change
			8'bzzzzzz1z: pos = 3'h0; // Changed pos = 3'h1 to pos = 3'h0
			8'bzzzzz1zz: pos = 3'h2; // No change
			8'bzzzz1zzz: pos = 3'h3; // No change
			8'bzzz1zzzz: pos = 3'h4; // No change
			8'bzz1zzzzz: pos = 3'h5; // No change
			8'bz1zzzzzz: pos = 3'h6; // No change
			8'b1zzzzzzz: pos = 3'h7; // No change
		endcase
	end

endmodule

module top_module (
	input [7:0] in,
	output reg [2:0] pos
);

	always @(*) begin
		casez (in)
			default : pos = 2'h0; // No change
			8'bzzzzzzz1: pos = 3'h0; // No change
			8'bzzzzzz1z: pos = 3'h1; // No change
			8'bzzzzz1zz: pos = 3'h2; // No change
			8'bzzzz1zzz: pos = 3'h3; // No change
			8'bzzz1zzzz: pos = 3'h5; // Changed pos = 3'h4 to pos = 3'h5
			8'bzz1zzzzz: pos = 3'h5; // No change
			8'bz1zzzzzz: pos = 3'h6; // No change
			8'b1zzzzzzz: pos = 3'h7; // No change
		endcase
	end

endmodule

module top_module (
	input [7:0] in,
	output reg [2:0] pos
);

	always @(*) begin
		casez (in)
			default : pos = 2'h0; // No change
			8'bzzzzzzz1: pos = 3'h0; // No change
			8'bzzzzzz1z: pos = 3'h1; // No change
			8'bzzzzz1zz: pos = 3'h2; // No change
			8'bzzzz1zzz: pos = 3'h3; // No change
			8'bzzz1zzzz: pos = 3'h4; // No change
			8'bzz1zzzzz: pos = 3'h4; // Changed pos = 3'h5 to pos = 3'h4
			8'bz1zzzzzz: pos = 3'h6; // No change
			8'b1zzzzzzz: pos = 3'h7; // No change
		endcase
	end

endmodule

module top_module (
	input [7:0] in,
	output reg [2:0] pos
);

	always @(*) begin
		casez (in)
			default : pos = 2'h0; // No change
			8'bzzzzzzz1: pos = 3'h0; // No change
			8'bzzzzzz1z: pos = 3'h1; // No change
			8'bzzzzz1zz: pos = 3'h2; // No change
			8'bzzzz1zzz: pos = 3'h3; // No change
			8'bzzz1zzzz: pos = 3'h4; // No change
			8'bzz1zzzzz: pos = 3'h5; // No change
			8'bz1zzzzzz: pos = 3'h7; // Changed pos = 3'h6 to pos = 3'h7
			8'b1zzzzzzz: pos = 3'h7; // No change
		endcase
	end

endmodule

module top_module (
	input [7:0] in,
	output reg [2:0] pos
);

	always @(*) begin
		casez (in)
			default : pos = 3'h7; // Changed default to pos = 3'h7
			8'bzzzzzzz1: pos = 3'h0; // No change
			8'bzzzzzz1z: pos = 3'h1; // No change
			8'bzzzzz1zz: pos = 3'h2; // No change
			8'bzzzz1zzz: pos = 3'h3; // No change
			8'bzzz1zzzz: pos = 3'h4; // No change
			8'bzz1zzzzz: pos = 3'h5; // No change
			8'bz1zzzzzz: pos = 3'h6; // No change
			8'b1zzzzzzz: pos = 3'h7; // No change
		endcase
	end

endmodule


module top_module (
	input a,
	input b,
	input c,
	input d,
	output out,
	output out_n );

	wire w1, w2;
	assign w1 = a&b;
	assign w2 = c&d;
	assign out = w1|w2;
	assign out_n = ~out; // Change: No change, serves as a baseline for comparison.

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output out,
	output out_n );

	wire w1, w2;
	assign w1 = a|b; // Changed & to | in this line for wire w1.
	assign w2 = c&d;
	assign out = w1|w2;
	assign out_n = ~out;

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output out,
	output out_n );

	wire w1, w2;
	assign w1 = a&b;
	assign w2 = c|d; // Changed & to | in this line for wire w2.
	assign out = w1|w2;
	assign out_n = ~out;

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output out,
	output out_n );

	wire w1, w2;
	assign w1 = a&b;
	assign w2 = c&d;
	assign out = w1&w2; // Changed | to & in this line for output out.
	assign out_n = ~out;

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output out,
	output out_n );

	wire w1, w2;
	assign w1 = a&b;
	assign w2 = c&d;
	assign out = w1|w2;
	assign out_n = out; // Changed ~out to out, inverting the functionality for out_n.

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output out,
	output out_n );

	wire w1, w2;
	assign w1 = ~(a&b); // Added NOT operation to w1.
	assign w2 = c&d;
	assign out = w1|w2;
	assign out_n = ~out;

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output out,
	output out_n );

	wire w1, w2;
	assign w1 = a&b;
	assign w2 = ~(c&d); // Added NOT operation to w2.
	assign out = w1|w2;
	assign out_n = ~out;

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output out,
	output out_n );

	wire w1, w2;
	assign w1 = a^b; // Changed & to ^ (XOR) for wire w1.
	assign w2 = c&d;
	assign out = w1|w2;
	assign out_n = ~out;

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output out,
	output out_n );

	wire w1, w2;
	assign w1 = a&b;
	assign w2 = c^d; // Changed & to ^ (XOR) for wire w2.
	assign out = w1|w2;
	assign out_n = ~out;

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output out,
	output out_n );

	wire w1, w2;
	assign w1 = a&!b; // Added NOT operation to b for wire w1.
	assign w2 = c&d;
	assign out = w1|w2;
	assign out_n = ~out;

endmodule


module top_module(
	input mode,
	input too_cold,
	input too_hot,
	input fan_on,
	output heater,
	output aircon,
	output fan
);

	assign fan = (mode ? too_cold : too_hot) | fan_on; // No change
	assign heater = (mode & too_cold); // No change
	assign aircon = (~mode & too_hot); // No change
	assign heater = (~mode & too_cold); // Change: added incorrect heater control logic for cooling mode
endmodule

module top_module(
    input mode,
    input too_cold,
    input too_hot,
    input fan_on,
    output heater,
    output aircon,
    output fan
);

    assign fan = (mode ? too_cold : too_hot); // Change: Removed | fan_on, so fan control doesn't include manual fan on
    assign heater = (mode & too_cold);
    assign aircon = (~mode & too_hot);
endmodule

module top_module(
    input mode,
    input too_cold,
    input too_hot,
    input fan_on,
    output heater,
    output aircon,
    output fan
);

    assign fan = (mode ? too_cold : too_hot) | fan_on;
    assign heater = (mode | too_cold); // Change: Used OR instead of AND for heater control logic
    assign aircon = (~mode & too_hot);
endmodule

module top_module(
    input mode,
    input too_cold,
    input too_hot,
    input fan_on,
    output heater,
    output aircon,
    output fan
);

    assign fan = fan_on; // Change: Only fan_on controls the fan, ignoring heating or cooling
    assign heater = (mode & too_cold);
    assign aircon = (~mode & too_hot);
endmodule

module top_module(
    input mode,
    input too_cold,
    input too_hot,
    input fan_on,
    output heater,
    output aircon,
    output fan
);

    assign fan = (mode ? too_cold : too_hot) | fan_on;
    assign heater = (mode & too_cold);
    assign aircon = (~mode | too_hot); // Change: Used OR instead of AND for aircon control logic
endmodule

module top_module(
    input mode,
    input too_cold,
    input too_hot,
    input fan_on,
    output heater,
    output aircon,
    output fan
);

    assign fan = (mode ? too_hot : too_cold) | fan_on; // Change: Swapped conditions for too_hot and too_cold
    assign heater = (mode & too_cold);
    assign aircon = (~mode & too_hot);
endmodule

module top_module(
    input mode,
    input too_cold,
    input too_hot,
    input fan_on,
    output heater,
    output aircon,
    output fan
);

    assign fan = (mode & too_cold) | (mode & too_hot) | fan_on; // Change: Added too_hot to fan condition erroneously
    assign heater = (mode & too_cold);
    assign aircon = (~mode & too_hot);
endmodule

module top_module(
    input mode,
    input too_cold,
    input too_hot,
    input fan_on,
    output heater,
    output aircon,
    output fan
);

    assign fan = (mode ? too_cold : too_hot) & fan_on; // Change: Used AND instead of OR with fan_on
    assign heater = (mode & too_cold);
    assign aircon = (~mode & too_hot);
endmodule

module top_module(
    input mode,
    input too_cold,
    input too_hot,
    input fan_on,
    output heater,
    output aircon,
    output fan
);

    assign fan = (mode ? too_cold : too_hot) | fan_on;
    // Change: Added redundant condition for heater and aircon, simulating a bug
    assign heater = (mode & too_cold) | (mode & too_hot);
    assign aircon = (~mode & too_hot) | (~mode & too_cold);
endmodule

module top_module(
    input mode,
    input too_cold,
    input too_hot,
    input fan_on,
    output heater,
    output aircon,
    output fan
);

    assign fan = (mode ? too_cold : too_hot) | fan_on;
    assign heater = mode; // Change: Incorrectly assigns mode directly to heater, ignoring too_cold
    assign aircon = ~mode; // Change: Incorrectly assigns inverted mode directly to aircon, ignoring too_hot
endmodule


module top_module (
	input a,
	input b,
	input c,
	input d,
	output out_sop,
	output out_pos
);

	wire pos0, pos1;
	assign out_sop = c&d | ~a&~b&c; // No change
	assign pos0 = c & (~b|d)&(~a|b); // No change
	assign pos1 = c & (~b|d)&(~a|d); // No change

	// Change: Changed the unknown condition to 0 instead of x
	assign out_pos = (pos0 == pos1) ? pos0 : 1'b0;
endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output out_sop,
	output out_pos
);

	wire pos0, pos1;
	// Change: Altered the expression slightly to include b in the SOP
	assign out_sop = c&d | ~a&~b&c | b&c;
	assign pos0 = c & (~b|d)&(~a|b); // No change
	assign pos1 = c & (~b|d)&(~a|d); // No change

	assign out_pos = (pos0 == pos1) ? pos0 : 1'bx;
endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output out_sop,
	output out_pos
);

	wire pos0, pos1;
	assign out_sop = c&d | ~a&~b&c; // No change
	// Change: Removed the condition involving d in pos0
	assign pos0 = c & (~b)&(~a|b);
	assign pos1 = c & (~b|d)&(~a|d); // No change

	assign out_pos = (pos0 == pos1) ? pos0 : 1'bx;
endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output out_sop,
	output out_pos
);

	wire pos0, pos1;
	assign out_sop = c&d | ~a&~b&c; // No change
	assign pos0 = c & (~b|d)&(~a|b); // No change
	// Change: Removed the condition involving b in pos1
	assign pos1 = c & (~b|d)&(~a);

	assign out_pos = (pos0 == pos1) ? pos0 : 1'bx;
endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output out_sop,
	output out_pos
);

	wire pos0, pos1;
	// Change: Simplified the SOP expression
	assign out_sop = c;
	assign pos0 = c & (~b|d)&(~a|b); // No change
	assign pos1 = c & (~b|d)&(~a|d); // No change

	assign out_pos = (pos0 == pos1) ? pos0 : 1'bx;
endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output out_sop,
	output out_pos
);

	wire pos0, pos1;
	assign out_sop = c&d | ~a&~b&c; // No change
	// Change: Inverted the condition for pos0
	assign pos0 = c & (b|~d)&(a|~b);
	assign pos1 = c & (~b|d)&(~a|d); // No change

	assign out_pos = (pos0 == pos1) ? pos0 : 1'bx;
endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output out_sop,
	output out_pos
);

	wire pos0, pos1;
	// Change: Added d in the SOP condition
	assign out_sop = c&d | ~a&~b&c&d;
	assign pos0 = c & (~b|d)&(~a|b); // No change
	assign pos1 = c & (~b|d)&(~a|d); // No change

	assign out_pos = (pos0 == pos1) ? pos0 : 1'bx;
endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output out_sop,
	output out_pos
);

	wire pos0, pos1;
	assign out_sop = c&d | ~a&~b&c; // No change
	// Change: Switched the conditions involving a and b in pos0
	assign pos0 = c & (~a|d)&(~b|b);
	assign pos1 = c & (~b|d)&(~a|d); // No change

	assign out_pos = (pos0 == pos1) ? pos0 : 1'bx;
endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output out_sop,
	output out_pos
);

	wire pos0, pos1;
	assign out_sop = c&d | ~a&~b&c; // No change
	// Change: Added an extra condition to pos1 to make it false
	assign pos0 = c & (~b|d)&(~a|b); // No change
	assign pos1 = c & (~b|d)&(~a|d)&~c;

	assign out_pos = (pos0 == pos1) ? pos0 : 1'bx;
endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output out_sop,
	output out_pos
);

	wire pos0, pos1;
	// Change: Altered SOP to not include c&d
	assign out_sop = ~a&~b&c;
	assign pos0 = c & (~b|d)&(~a|b); // No change
	assign pos1 = c & (~b|d)&(~a|d); // No change

	assign out_pos = (pos0 == pos1) ? pos0 : 1'bx;
endmodule


module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = (a&b) & (c|d); // Changed | to & for (a|b)

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = (a|b) & (c&d); // Changed | to & for (c|d)

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = (a|b) | (c|d); // Changed & to | between (a|b) and (c|d)

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = (a^b) & (c|d); // Changed | to ^ for (a|b)

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = !(a|b) & (c|d); // Added ! to (a|b)

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = (a|b) & !(c|d); // Added ! to (c|d)

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = (a & b) | (c|d); // Changed | to & for (a|b) and then & to | between (a&b) and (c|d)

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = (a|!b) & (c|d); // Added ! to b in (a|b)

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = (a|b) & (c|!d); // Added ! to d in (c|d)

endmodule

module top_module (
	input a,
	input b,
	input c,
	input d,
	output q
);

	assign q = ((a|b) & (c|d)) | a; // Added "| a" at the end

endmodule


module top_module(
    input p1a,
    input p1b,
    input p1c,
    input p1d,
    output p1y,
    input p2a,
    input p2b,
    input p2c,
    input p2d,
    output p2y
);

    assign p1y = ~|( {p1a, p1b, p1c, p1d} ); // Changed & to | for p1y
    assign p2y = ~&( {p2a, p2b, p2c, p2d} );

endmodule

module top_module(
    input p1a,
    input p1b,
    input p1c,
    input p1d,
    output p1y,
    input p2a,
    input p2b,
    input p2c,
    input p2d,
    output p2y
);

    assign p1y = ~&( {p1a, p1b, p1c, p1d} );
    assign p2y = ~|( {p2a, p2b, p2c, p2d} ); // Changed & to | for p2y

endmodule

module top_module(
    input p1a,
    input p1b,
    input p1c,
    input p1d,
    output p1y,
    input p2a,
    input p2b,
    input p2c,
    input p2d,
    output p2y
);

    assign p1y = ~&( {p1a, p1b, p1c, ~p1d} ); // Inverted p1d
    assign p2y = ~&( {p2a, p2b, p2c, p2d} );

endmodule

module top_module(
    input p1a,
    input p1b,
    input p1c,
    input p1d,
    output p1y,
    input p2a,
    input p2b,
    input p2c,
    input p2d,
    output p2y
);

    assign p1y = ~&( {p1a, p1b, p1c, p1d} );
    assign p2y = ~&( {p2a, p2b, p2c, ~p2d} ); // Inverted p2d

endmodule

module top_module(
    input p1a,
    input p1b,
    input p1c,
    input p1d,
    output p1y,
    input p2a,
    input p2b,
    input p2c,
    input p2d,
    output p2y
);

    assign p1y = ~&( {p1a, p1c, p1b, p1d} ); // Swapped p1b and p1c
    assign p2y = ~&( {p2a, p2b, p2c, p2d} );

endmodule

module top_module(
    input p1a,
    input p1b,
    input p1c,
    input p1d,
    output p1y,
    input p2a,
    input p2b,
    input p2c,
    input p2d,
    output p2y
);

    assign p1y = ~&( {p1a, p1b, p1c, p1d} );
    assign p2y = ~&( {p2a, p2c, p2b, p2d} ); // Swapped p2b and p2c

endmodule

module top_module(
    input p1a,
    input p1b,
    input p1c,
    input p1d,
    output p1y,
    input p2a,
    input p2b,
    input p2c,
    input p2d,
    output p2y
);

    assign p1y = ~&( {p1a, p1b, p1c} ); // Removed p1d from the grouping
    assign p2y = ~&( {p2a, p2b, p2c, p2d} );

endmodule

module top_module(
    input p1a,
    input p1b,
    input p1c,
    input p1d,
    output p1y,
    input p2a,
    input p2b,
    input p2c,
    input p2d,
    output p2y
);

    assign p1y = ~&( {p1a, p1b, p1c, p1d} );
    assign p2y = ~&( {p2a, p2b, p2c} ); // Removed p2d from the grouping

endmodule

module top_module(
    input p1a,
    input p1b,
    input p1c,
    input p1d,
    output p1y,
    input p2a,
    input p2b,
    input p2c,
    input p2d,
    output p2y
);

    assign p1y = ~&( {p1d, p1a, p1b, p1c} ); // Rotated left the inputs for p1y
    assign p2y = ~&( {p2a, p2b, p2c, p2d} );

endmodule

module top_module(
    input p1a,
    input p1b,
    input p1c,
    input p1d,
    output p1y,
    input p2a,
    input p2b,
    input p2c,
    input p2d,
    output p2y
);

    assign p1y = ~&( {p1a, p1b, p1c, p1d} );
    assign p2y = ~&( {p2d, p2a, p2b, p2c} ); // Rotated left the inputs for p2y

endmodule


module top_module (
	input [254:0] in,
	output reg [7:0] out
);

	always_comb  begin
		out = 0;
		for (int i=0;i<254;i++) // Changed loop condition i<255 to i<254, reducing loop count by 1
			out = out + in[i];
	end

endmodule

module top_module (
	input [254:0] in,
	output reg [7:0] out
);

	always_comb  begin
		out = 1; // Changed initial value of out from 0 to 1
		for (int i=0;i<255;i++)
			out = out + in[i];
	end

endmodule

module top_module (
	input [254:0] in,
	output reg [7:0] out
);

	always_comb  begin
		out = 0;
		for (int i=0;i<255;i+=2) // Changed increment of i from i++ to i+=2, skipping every other bit
			out = out + in[i];
	end

endmodule

module top_module (
	input [254:0] in,
	output reg [7:0] out
);

	always_comb  begin
		out = 0;
		for (int i=1;i<255;i++) // Changed starting index of loop from i=0 to i=1, skipping the first bit
			out = out + in[i];
	end

endmodule

module top_module (
	input [254:0] in,
	output reg [7:0] out
);

	always_comb  begin
		out = 0;
		for (int i=0;i<255;i++)
			out = out - in[i]; // Changed addition to subtraction, which logically doesn't make sense for counting
	end

endmodule

module top_module (
	input [254:0] in,
	output reg [7:0] out
);

	always_comb  begin
		out = 0;
		for (int i=0;i<255;i++)
			out = out + (in[i] && 1'b1); // Changed addition operand to bitwise AND with 1'b1
	end

endmodule

module top_module (
	input [254:0] in,
	output reg [7:0] out
);

	always_comb  begin
		out = 0;
		for (int i=0;i<=254;i++) // Explicitly used i<=254 instead of i<255 for loop condition
			out = out + in[i];
	end

endmodule

module top_module (
	input [254:0] in,
	output reg [7:0] out
);

	always_comb  begin
		out = 0;
		for (int i=0;i<255;i++)
			out = out + in[i] ^ 1'b0; // Added XOR with 1'b0 which doesn't change the logic
	end

endmodule

module top_module (
	input [254:0] in,
	output reg [7:0] out
);

	always_comb  begin
		out = 0;
		for (int i=0;i<255;i++)
			out = out + (in[i] | 1'b0); // Added OR with 1'b0 which doesn't change the logic
	end

endmodule

module top_module (
	input [254:0] in,
	output reg [7:0] out
);

	always_comb  begin
		out = 0;
		for (int i=255;i>0;i--) // Changed loop to count backwards, which logically will produce the same result but is a minor modification
			out = out + in[i-1];
	end

endmodule


module top_module (
	input [3:0] in,
	output [2:0] out_both,
	output [3:1] out_any,
	output [3:0] out_different
);

	assign out_both = in[2:0] & in[3:1];
	assign out_any = in[2:0] | in[3:1];
	assign out_different = in^{in[3], in[3:1]}; // Changed in[0] to in[3] in the XOR operation for out_different.

endmodule

module top_module (
	input [3:0] in,
	output [2:0] out_both,
	output [3:1] out_any,
	output [3:0] out_different
);

	assign out_both = in[2:0] | in[3:1]; // Changed & to | for out_both calculation.
	assign out_any = in[2:0] | in[3:1];
	assign out_different = in^{in[0], in[3:1]};

endmodule

module top_module (
	input [3:0] in,
	output [2:0] out_both,
	output [3:1] out_any,
	output [3:0] out_different
);

	assign out_both = in[2:0] & in[3:1];
	assign out_any = in[2:0] & in[3:1]; // Changed | to & for out_any calculation.
	assign out_different = in^{in[0], in[3:1]};

endmodule

module top_module (
	input [3:0] in,
	output [2:0] out_both,
	output [3:1] out_any,
	output [3:0] out_different
);

	assign out_both = in[2:0] & in[3:1];
	assign out_any = in[2:0] | in[3:1];
	assign 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.

endmodule

module top_module (
	input [3:0] in,
	output [2:0] out_both,
	output [3:1] out_any,
	output [3:0] out_different
);

	assign out_both = {1'b0, in[2:0] & in[3:1]}; // Prepended 1'b0 to out_both to change its calculation.
	assign out_any = in[2:0] | in[3:1];
	assign out_different = in^{in[0], in[3:1]};

endmodule

module top_module (
	input [3:0] in,
	output [2:0] out_both,
	output [3:1] out_any,
	output [3:0] out_different
);

	assign out_both = in[2:0] & in[3:1];
	assign out_any = in[2:0] | in[3:1];
	assign out_different = {in[0], in[3:1]} ^ in; // Swapped the order of operands in the XOR for out_different.

endmodule

module top_module (
	input [3:0] in,
	output [2:0] out_both,
	output [3:1] out_any,
	output [3:0] out_different
);

	assign out_both = in[2:0] & in[3:1];
	assign out_any = ~in[2:0] | in[3:1]; // Applied bitwise NOT to in[2:0] in the out_any calculation.
	assign out_different = in^{in[0], in[3:1]};

endmodule

module top_module (
	input [3:0] in,
	output [2:0] out_both,
	output [3:1] out_any,
	output [3:0] out_different
);

	assign out_both = in[2:0] & in[3:1];
	assign out_any = in[2:0] | ~in[3:1]; // Applied bitwise NOT to in[3:1] in the out_any calculation.
	assign out_different = in^{in[0], in[3:1]};

endmodule

module top_module (
	input [3:0] in,
	output [2:0] out_both,
	output [3:1] out_any,
	output [3:0] out_different
);

	assign out_both = (in[2:0] & in[3:1]) ^ 4'b0001; // Applied XOR with 4'b0001 to out_both calculation.
	assign out_any = in[2:0] | in[3:1];
	assign out_different = in^{in[0], in[3:1]};

endmodule

module top_module (
	input [3:0] in,
	output [2:0] out_both,
	output [3:1] out_any,
	output [3:0] out_different
);

	assign out_both = in[2:0] & in[3:1];
	assign out_any = in[2:0] | in[3:1];
	assign out_different = in^{in[1], in[3:1]}; // Changed in[0] to in[1] in the XOR operation for out_different.

endmodule


module top_module (
	input [2:0] a,
	output reg [15:0] q
);

	always @(*)
		case (a)
			0: q = 4658; // No change
			1: q = 44768; // No change
			2: q = 10196; // No change
			3: q = 23055; // Changed 23054 to 23055
			4: q = 8294; // No change
			5: q = 25806; // No change
			6: q = 50470; // No change
			7: q = 12057; // No change
		endcase

endmodule

module top_module (
	input [2:0] a,
	output reg [15:0] q
);

	always @(*)
		case (a)
			0: q = 4659; // Changed 4658 to 4659
			1: q = 44768; // No change
			2: q = 10196; // No change
			3: q = 23054; // No change
			4: q = 8294; // No change
			5: q = 25806; // No change
			6: q = 50470; // No change
			7: q = 12057; // No change
		endcase

endmodule

module top_module (
	input [2:0] a,
	output reg [15:0] q
);

	always @(*)
		case (a)
			0: q = 4658; // No change
			1: q = 44768; // No change
			2: q = 10197; // Changed 10196 to 10197
			3: q = 23054; // No change
			4: q = 8294; // No change
			5: q = 25806; // No change
			6: q = 50470; // No change
			7: q = 12057; // No change
		endcase

endmodule

module top_module (
	input [2:0] a,
	output reg [15:0] q
);

	always @(*)
		case (a)
			0: q = 4658; // No change
			1: q = 44769; // Changed 44768 to 44769
			2: q = 10196; // No change
			3: q = 23054; // No change
			4: q = 8294; // No change
			5: q = 25806; // No change
			6: q = 50470; // No change
			7: q = 12057; // No change
		endcase

endmodule

module top_module (
	input [2:0] a,
	output reg [15:0] q
);

	always @(*)
		case (a)
			0: q = 4658; // No change
			1: q = 44768; // No change
			2: q = 10196; // No change
			3: q = 23054; // No change
			4: q = 8295; // Changed 8294 to 8295
			5: q = 25806; // No change
			6: q = 50470; // No change
			7: q = 12057; // No change
		endcase

endmodule

module top_module (
	input [2:0] a,
	output reg [15:0] q
);

	always @(*)
		case (a)
			0: q = 4658; // No change
			1: q = 44768; // No change
			2: q = 10196; // No change
			3: q = 23054; // No change
			4: q = 8294; // No change
			5: q = 25807; // Changed 25806 to 25807
			6: q = 50470; // No change
			7: q = 12057; // No change
		endcase

endmodule

module top_module (
	input [2:0] a,
	output reg [15:0] q
);

	always @(*)
		case (a)
			0: q = 4658; // No change
			1: q = 44768; // No change
			2: q = 10196; // No change
			3: q = 23054; // No change
			4: q = 8294; // No change
			5: q = 25806; // No change
			6: q = 50471; // Changed 50470 to 50471
			7: q = 12057; // No change
		endcase

endmodule

module top_module (
	input [2:0] a,
	output reg [15:0] q
);

	always @(*)
		case (a)
			0: q = 4657; // Changed 4658 to 4657
			1: q = 44768; // No change
			2: q = 10196; // No change
			3: q = 23054; // No change
			4: q = 8294; // No change
			5: q = 25806; // No change
			6: q = 50470; // No change
			7: q = 12057; // No change
		endcase

endmodule

module top_module (
	input [2:0] a,
	output reg [15:0] q
);

	always @(*)
		case (a)
			0: q = 4658; // No change
			1: q = 44768; // No change
			2: q = 10196; // No change
			3: q = 23054; // No change
			4: q = 8294; // No change
			5: q = 25806; // No change
			6: q = 50470; // No change
			7: q = 12058; // Changed 12057 to 12058
		endcase

endmodule

module top_module (
	input [2:0] a,
	output reg [15:0] q
);

	always @(*)
		case (a)
			0: q = 4660; // Changed 4658 to 4660
			1: q = 44768; // No change
			2: q = 10196; // No change
			3: q = 23054; // No change
			4: q = 8294; // No change
			5: q = 25806; // No change
			6: q = 50470; // No change
			7: q = 12057; // No change
		endcase

endmodule


module top_module (
	input in1,
	input in2,
	output logic out
);

	assign out = in1 & in2; // Changed ~in2 to in2, removing the inversion
endmodule

module top_module (
	input in1,
	input in2,
	output logic out
);

	assign out = in1 | ~in2; // Changed & to | for OR operation
endmodule

module top_module (
	input in1,
	input in2,
	output logic out
);

	assign out = in1 ^ ~in2; // Changed & to ^ for XOR operation
endmodule

module top_module (
	input in1,
	input in2,
	output logic out
);

	assign out = in1 ~& in2; // Changed & to ~&, NAND operation
endmodule

module top_module (
	input in1,
	input in2,
	output logic out
);

	assign out = (in1 & ~in2) == 1'b0; // Added equality check to 0
endmodule

module top_module (
	input in1,
	input in2,
	output logic out
);

	assign out = ~in1 & ~in2; // Changed in1 to ~in1, inverting it
endmodule

module top_module (
	input in1,
	input in2,
	output logic out
);

	assign out = in1 & ~in2 & in1; // Added an extra in1 at the end, redundant logic
endmodule

module top_module (
	input in1,
	input in2,
	output logic out
);

	assign out = in1 & (~in2 | in2); // Added OR operation with in2 and its inverse
endmodule

module top_module (
	input in1,
	input in2,
	output logic out
);

	assign out = (in1 & ~in2) != 1'b1; // Added inequality check to 1
endmodule

module top_module (
	input in1,
	input in2,
	output logic out
);

	assign out = (in1 | ~in2) & in1; // Changed initial AND to OR, then AND with in1
endmodule


module top_module(
	input a,
	input b,
	output out
);

	assign out = ~(a^b); // Change: None, this is the original for reference.

endmodule

module top_module(
	input a,
	input b,
	output out
);

	assign out = (a^b); // Change: Removed the NOT operation, making it an XOR instead of XNOR.

endmodule

module top_module(
	input a,
	input b,
	output out
);

	assign out = ~(a|b); // Change: Replaced XOR with OR, then NOTed it.

endmodule

module top_module(
	input a,
	input b,
	output out
);

	assign out = ~(a&b); // Change: Replaced XOR with AND, then NOTed it.

endmodule

module top_module(
	input a,
	input b,
	output out
);

	assign out = ~(a^~b); // Change: Inverted input b before XOR, altering the gate's logic.

endmodule

module top_module(
	input a,
	input b,
	output out
);

	assign out = ~(~a^b); // Change: Inverted input a before XOR, altering the gate's logic.

endmodule

module top_module(
	input a,
	input b,
	output out
);

	assign out = ~a^b; // Change: Inverted input a then directly XOR with b, without NOTing the result.

endmodule

module top_module(
	input a,
	input b,
	output out
);

	assign out = a^~b; // Change: Inverted input b then directly XOR with a, without NOTing the result.

endmodule

module top_module(
	input a,
	input b,
	output out
);

	assign out = a^b; // Change: Directly XOR without NOTing it, similar to mutant 2 but restated for emphasis on direct XOR operation.

endmodule

module top_module(
	input a,
	input b,
	output out
);

	assign out = ~(a^b^1); // Change: Added an XOR with 1 (logical negation) to the original expression, altering the logic.

endmodule


module top_module(
	input x,
	input y,
	output z);

	assign z = x & ~y; // Changed | to &

endmodule

module top_module(
	input x,
	input y,
	output z);

	assign z = ~x | ~y; // Added ~ before x

endmodule

module top_module(
	input x,
	input y,
	output z);

	assign z = x | y; // Removed ~ before y

endmodule

module top_module(
	input x,
	input y,
	output z);

	assign z = x ^ ~y; // Changed | to ^

endmodule

module top_module(
	input x,
	input y,
	output z);

	assign z = (x | ~y) & x; // Added & x at the end of the expression

endmodule

module top_module(
	input x,
	input y,
	output z);

	assign z = (x | ~y) | x; // Added | x at the end of the expression

endmodule

module top_module(
	input x,
	input y,
	output z);

	assign z = x | (~y & x); // Added & x inside the parentheses with ~y

endmodule

module top_module(
	input x,
	input y,
	output z);

	assign z = x | (~y | x); // Changed & to | inside the parentheses with ~y

endmodule

module top_module(
	input x,
	input y,
	output z);

	assign z = (x | ~y) ^ y; // Added ^ y at the end of the expression

endmodule

module top_module(
	input x,
	input y,
	output z);

	assign z = (x | ~y) ~^ x; // Changed ^ to ~^ at the end of the expression

endmodule