codellama:13b | RAG off

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Internal signals
reg [3:0] count; // Counts the number of inputs received
reg [15:0] sum;  // Stores the accumulated sum

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        count <= 4'b0;
        sum <= 16'b0;
    end else begin
        if (valid_in) begin
            // Increment the count and add the input data to the sum
            count <= count + 4'b1;
            sum <= sum + {data_in, 8'b0};
            
            // If the count reaches 4, output the accumulated sum and reset the count
            if (count == 4) begin
                data_out <= sum[9:0];
                valid_out <= 1;
                count <= 4'b0;
                sum <= 16'b0;
            end
        end
    end
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Internal signals
reg [3:0] counter; // Counter for accumulating 4 inputs
wire [15:0] sum;   // Sum of the 4 input values

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        counter <= 0;
        valid_out <= 0;
        data_out <= 0;
    end else begin
        // Increment the counter when valid input is received
        if (valid_in) begin
            counter <= counter + 1'b1;
        end

        // Calculate the sum of the 4 input values
        sum = data_in[7:0] + data_in[15:8];

        // Output the accumulated sum and set valid_out to 1 when counter reaches 4
        if (counter == 4'd3) begin
            data_out <= sum;
            valid_out <= 1'b1;
        end else begin
...

[stderr]
/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_1/generated.v:26: error: sum is not a valid l-value in verified_accu.
/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_1/generated.v:12:      : sum is declared here as wire.
1 error(s) during elaboration.

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "syntax",
    "code": "syntax.iverilog_failed",
    "message": "/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_1/generated.v:26: error: sum is not a valid l-value in verified_accu.\n/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_1/generated.v:12:      : sum is declared here as wire.\n1 error(s) during elaboration.\n",
    "retryable": false,
    "details": {}
  },
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": false,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Internal signals
reg [31:0] accumulator;
reg [2:0] count;
wire [7:0] data_in_dly = data_in;
wire valid_in_dly = valid_in;

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        accumulator <= 32'b0;
        count <= 3'b0;
        valid_out <= 1'b0;
    end else begin
        // Accumulate input data when valid_in is high and there are fewer than four inputs
        if (valid_in_dly & (count < 4)) begin
            accumulator <= {accumulator[30:0], data_in_dly};
            count <= count + 1;
        end

        // Output the accumulated sum when there are four inputs and valid_out is high
        if (count == 4) begin
            data_out <= {accumulator[39:8], 2'b0};
            valid_out <= 1'b1;
        end else begin
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Internal registers
reg [3:0] count; // Counts the number of input data received
reg [15:0] sum; // Accumulates the input data

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        count <= 4'b0;
        sum <= 16'b0;
        valid_out <= 1'b0;
    end else begin
        // Increment the counter and accumulate the input data when valid_in is high
        if (valid_in) begin
            count <= count + 4'b1;
            sum <= sum + {data_in, 8'b0};
        end

        // Output the accumulated sum and set valid_out to 1 when four input data have been received
        if (count == 4'b1111) begin
            data_out <= sum;
            valid_out <= 1'b1;
        end else begin
            data_out <= {9{1'b0}}; // Output all zeroes when less than four input data have been received
            valid_out <= 1'b0;
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Internal registers
reg [3:0] count; // Counts the number of inputs received
reg [15:0] sum;  // Stores the accumulated sum

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        count <= 4'b0;
        sum <= 16'b0;
        valid_out <= 1'b0;
    end else begin
        // Increment the count when a new input is received
        if (valid_in) begin
            count <= count + 4'b1;
        end

        // Accumulate the inputs and calculate the output sum
        if (count == 4'b0) begin
            sum <= data_in[7:0];
        end else begin
            sum <= sum + data_in[7:0];
        end

        // Set valid_out to 1 when the count reaches 4 and reset it otherwise
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Internal signals
reg [31:0] accu; // Accumulator register
wire [3:0] count; // Input data counter

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        accu <= 0;
        count <= 0;
        valid_out <= 0;
    end else begin
        if (valid_in) begin
            // Accumulate input data
            accu <= accu + data_in;
            count <= count + 1;
            
            // Check if four inputs have been received
            if (count == 4'd3) begin
                // Output accumulated result and set valid output signal
                data_out <= accu[9:0];
                valid_out <= 1;
                
                // Reset accumulator and input counter
                accu <= 0;
...

[stderr]
/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_3/generated.v:17: error: count is not a valid l-value in verified_accu.
/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_3/generated.v:12:      : count is declared here as wire.
/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_3/generated.v:23: error: count is not a valid l-value in verified_accu.
/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_3/generated.v:12:      : count is declared here as wire.
/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_3/generated.v:33: error: count is not a valid l-value in verified_accu.
/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_3/generated.v:12:      : count is declared here as wire.
/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_3/generated.v:38: error: count is not a valid l-value in verified_accu.
/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_3/generated.v:12:      : count is declared here as wire.
4 error(s) during elaboration.

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "syntax",
    "code": "syntax.iverilog_failed",
    "message": "/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_3/generated.v:17: error: count is not a valid l-value in verified_accu.\n/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_3/generated.v:12:      : count is declared here as wire.\n/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_3/generated.v:23: error: count is not a valid l-value in verified_accu.\n/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_3/generated.v:12:      : count is declared here as wire.\n/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_3/generated.v:33: error: count is not a valid l-value in verified_accu.\n/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_3/generated.v:12:      : count is declared here as wire.\n/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_3/generated.v:38: error: count is not a valid l-value in verified_accu.\n/data/eval/out/run_20260427_144342_055801_c17762/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_3/generated.v:12:      : count is declared here as wire.\n4 error(s) during elaboration.\n",
    "retryable": false,
    "details": {}
  },
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": false,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Internal registers
reg [3:0] counter; // Counter for 4-bit accumulation
reg [7:0] accu_data; // Accumulated data

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        valid_out <= 1'b0;
        counter <= 4'b0;
        accu_data <= 8'b0;
    end else begin
        // Increment the counter when valid input is received
        if (valid_in) begin
            counter <= counter + 1'b1;
        end

        // Accumulate data when the counter reaches 4
        if (counter == 4'd3) begin
            accu_data <= accu_data + data_in;
            valid_out <= 1'b1;
        end
    end
end
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Internal registers
reg [3:0] count; // Counts the number of inputs received
reg [15:0] sum; // Stores the accumulated sum

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        count <= 4'b0;
        sum <= 16'b0;
        valid_out <= 1'b0;
    end else begin
        // Increment the count when a new input is received
        if (valid_in) begin
            count <= count + 4'b1;
        end

        // Accumulate the inputs and set the output when four inputs are received
        if (count == 4'b1000) begin
            sum <= sum + data_in;
            valid_out <= 1'b1;
            count <= 4'b0;
        end
    end
end
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Registers for storing the accumulated sum and number of inputs received
reg [18:0] accu_sum;
reg [3:0] num_inputs;

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        // Reset the accumulated sum and number of inputs received to 0
        accu_sum <= 19'b0;
        num_inputs <= 4'b0;
    end else begin
        // Increment the number of inputs received when valid_in is high
        if (valid_in) begin
            num_inputs <= num_inputs + 1;
        end

        // Accumulate the input data when valid_in is high and there are fewer than four inputs received
        if (valid_in && num_inputs < 4'b1111) begin
            accu_sum <= accu_sum + data_in;
        end
    end
end

// Generate the output data when the number of inputs received is greater than or equal to four
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Internal registers
reg [31:0] accu; // Accumulator register
reg [2:0] count; // Input data counter

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        accu <= 0;
        count <= 0;
        valid_out <= 0;
    end else begin
        if (valid_in) begin
            // Increment input data counter
            count <= count + 1'b1;
            // Accumulate input data
            accu <= accu + data_in;
            // Check for four valid inputs and set output valid signal
            if (count == 3'd4) begin
                valid_out <= 1;
                // Set output data to accumulated value
                data_out <= accu[9:0];
                // Reset accumulator and input counter
                accu <= 0;
                count <= 0;
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Internal signals
reg [3:0] count; // Counts the number of inputs received
reg [15:0] sum;  // Stores the accumulated sum

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        count <= 4'b0;
        sum <= 16'b0;
        valid_out <= 1'b0;
    end else begin
        // Increment the count and store the input data
        count <= count + 4'b1;
        sum <= sum + {data_in, 8'b0};

        // Check if four inputs have been received
        if (count == 4'b1111) begin
            // Output the accumulated sum and set valid_out to 1
            data_out <= sum;
            valid_out <= 1'b1;

            // Reset the count and sum for the next cycle
            count <= 4'b0;
            sum <= 16'b0;
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Internal registers
reg [3:0] counter; // Counter for accumulating 4 inputs
reg [15:0] sum; // Accumulated sum of input values

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        counter <= 0;
        sum <= 0;
        valid_out <= 0;
    end else begin
        // Increment the counter when a new input is received
        if (valid_in) begin
            counter <= counter + 1'b1;
        end

        // Accumulate the input values and calculate the sum
        if (counter == 4'd3) begin
            sum <= sum + data_in;
            valid_out <= 1'b1;
        end else if (counter == 4'd0) begin
            sum <= data_in;
        end
    end
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Internal signals
reg [3:0] count; // Counter for number of inputs received
wire [15:0] sum; // Sum of all 4 input values

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        count <= 0;
        valid_out <= 0;
        data_out <= 0;
    end else begin
        // Increment counter when input is valid and ready
        if (valid_in && ~valid_out) begin
            count <= count + 1'b1;
        end

        // Calculate sum of all 4 input values
        sum = data_in[7:0] + data_in[15:8];

        // Set output valid and data when counter reaches 4
        if (count == 4) begin
            valid_out <= 1;
            data_out <= sum;
        end
...

[stderr]
/data/eval/out/run_20260427_102437_171676_163c0c/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_7/generated.v:26: error: sum is not a valid l-value in verified_accu.
/data/eval/out/run_20260427_102437_171676_163c0c/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_7/generated.v:12:      : sum is declared here as wire.
1 error(s) during elaboration.

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "syntax",
    "code": "syntax.iverilog_failed",
    "message": "/data/eval/out/run_20260427_102437_171676_163c0c/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_7/generated.v:26: error: sum is not a valid l-value in verified_accu.\n/data/eval/out/run_20260427_102437_171676_163c0c/tmp/codellama/rtllm__13_rtllm_arithmetic__task_01/sample_7/generated.v:12:      : sum is declared here as wire.\n1 error(s) during elaboration.\n",
    "retryable": false,
    "details": {}
  },
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": false,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Internal registers
reg [31:0] accu; // Accumulator register
reg [2:0] counter; // Counter for 4-bit input data

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        accu <= 32'b0;
        counter <= 3'b0;
        valid_out <= 1'b0;
    end else begin
        // Accumulate input data when valid_in is high
        if (valid_in) begin
            accu <= accu + data_in;
            counter <= counter + 1;
        end
        
        // Output accumulated data and set valid_out when counter reaches 4
        if (counter == 3'b111) begin
            data_out <= accu[9:0];
            valid_out <= 1'b1;
        end else begin
            data_out <= 10'b0;
            valid_out <= 1'b0;
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Registers to store the accumulated sum and count of inputs
reg [18:0] accu_sum;
reg [3:0] accu_count;

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        // Reset the accumulated sum and count to 0
        accu_sum <= 19'b0;
        accu_count <= 4'b0;
    end else begin
        // Increment the count of inputs when valid_in is high
        if (valid_in) begin
            accu_count <= accu_count + 1;
        end

        // Accumulate the input data when valid_in is high and there are fewer than four inputs
        if (valid_in && accu_count < 4'b1111) begin
            accu_sum <= accu_sum + data_in;
        end
    end
end

// Output the accumulated sum when there are four inputs and set valid_out to 1
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Registers for storing the accumulated sum and count
reg [15:0] accu_sum;
reg [3:0] accu_count;

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        // Reset the accumulated sum and count to 0
        accu_sum <= 16'b0;
        accu_count <= 4'b0;
        valid_out <= 1'b0;
    end else if (valid_in) begin
        // Increment the count by 1 when a new input is received
        accu_count <= accu_count + 1'b1;
        // Add the new input to the accumulated sum
        accu_sum <= accu_sum + data_in;
        // Set valid_out to 1 when the count reaches 4
        if (accu_count == 4'd3) begin
            valid_out <= 1'b1;
        end else begin
            valid_out <= 1'b0;
        end
    end
end
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Registers to store the accumulated sum and count of inputs
reg [9:0] accu_sum;
reg [3:0] accu_count;

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        // Reset the accumulated sum and count to 0
        accu_sum <= 10'b0;
        accu_count <= 4'b0;
    end else begin
        // Increment the count of inputs when valid_in is high
        if (valid_in) begin
            accu_count <= accu_count + 1;
        end
        
        // Add the input data to the accumulated sum when valid_in is high and there are fewer than four inputs
        if (valid_in && accu_count < 4'b10) begin
            accu_sum <= accu_sum + data_in;
        end
        
        // Output the accumulated sum and set valid_out to 1 when there are exactly four inputs
        if (accu_count == 4'b10) begin
            data_out <= accu_sum;
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

[error]
None

[
  {
    "stage": "model_request",
    "code": "model_request.failed",
    "message": "HTTPConnectionPool(host='ollama', port=11434): Read timed out. (read timeout=120)",
    "retryable": true,
    "details": {}
  },
  {
    "stage": "extract",
    "code": "extract.no_verilog_found",
    "message": "Model response is empty",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": false,
  "extract_ok": false,
  "syntax_ok": false,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Registers to store the accumulated sum and count of inputs received
reg [18:0] accu_sum;
reg [3:0] accu_cnt;

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        // Reset the accumulated sum and count to 0 on reset
        accu_sum <= 19'b0;
        accu_cnt <= 4'b0;
    end else begin
        // Accumulate the input data when valid_in is high
        if (valid_in) begin
            accu_sum <= {accu_sum[17:0], data_in};
            accu_cnt <= accu_cnt + 4'b1;
        end
    end
end

// Generate the output data and valid signal when four inputs have been received
assign data_out = accu_sum[18:9];
assign valid_out = (accu_cnt == 4'b1111);

endmodule

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_accu (
    input clk,
    input rst_n,
    input [7:0] data_in,
    input valid_in,
    output reg valid_out,
    output reg [9:0] data_out
);

// Internal registers
reg [3:0] count; // Counts the number of inputs received
reg [15:0] sum;  // Stores the accumulated sum

always @(posedge clk or negedge rst_n) begin
    if (~rst_n) begin
        count <= 4'b0;
        sum <= 16'b0;
        valid_out <= 1'b0;
    end else begin
        // Increment the counter when a new input is received
        if (valid_in) begin
            count <= count + 4'b1;
            sum <= sum + data_in;
        end
        
        // Output the accumulated sum and set valid_out to 1 when four inputs have been received
        if (count == 4'b1111) begin
            data_out <= sum;
            valid_out <= 1'b1;
        end else begin
            data_out <= 10'b0;
            valid_out <= 1'b0;
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu
3 error(s) during elaboration.
*** These modules were missing:
        accu referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_01/tb.v:26: error: Unknown module type: accu\n3 error(s) during elaboration.\n*** These modules were missing:\n        accu referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}