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deepseek-coder-v2:16b | RAG off

05_dft_testability / task_50 | scan_reg8

benchmarkilyasov
task_idilyasov/05_dft_testability/task_50
samples_total10
final_success_samples0
final_success_rate_samples0.0%
functional_pass_rate_samples0.0%
synth_pass_rate_samples0.0%
source_runsrun_20260427_102437_171676_163c0c

Что показывает эта страница

Здесь перечислены все реальные попытки этой модели на одной задаче. По каждой попытке можно увидеть, до какой стадии она дошла, где именно сломалась и какое сообщение об ошибке вернулось из syntax, functional или synthesis.

Samples

sample run extract_ok syntax_ok functional_ok openlane_ok final_success failure_stage failure_reason details
sample_1 run_20260427_102437_171676_163c0c ok ok failed failed failed functional Functional output contains failure marker: TEST_FAILED. ERROR: wrong first shifted-out bit. Expected 1, got 0
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\deepseek-coder-v2-16b\rag_off\benchmarks\ilyasov\tasks\ilyasov__05_dft_testability__task_50\samples\run_20260427_102437_171676_163c0c__sample_1
generated.v preview 
module scan_reg8 (
    input clk,
    input rst_n,
    input scan_en,
    input scan_in,
    input load_en,
    input [7:0] data_in,
    output reg [7:0] data_out,
    output reg scan_out
);

reg [7:0] shift_reg;

always @(posedge clk or negedge rst_n) begin
    if (!rst_n) begin
        data_out <= 8'b0;
        scan_out <= 1'b0;
        shift_reg <= 8'b0;
    end else if (scan_en) begin
        shift_reg <= {shift_reg[6:0], scan_in};
        data_out <= shift_reg;
        scan_out <= shift_reg[7];
    end else if (!scan_en && load_en) begin
        data_out <= data_in;
        scan_out <= 1'b0;
    end else begin
        data_out <= data_out;
        scan_out <= 1'b0;
    end
end

endmodule
functional details 
[stdout]
ERROR: wrong first shifted-out bit. Expected 1, got 0
ERROR: wrong third shifted-out bit. Expected 1, got 0
ERROR: wrong sixth shifted-out bit. Expected 1, got 0
ERROR: wrong eighth shifted-out bit. Expected 1, got 0
ERROR: scan load failed. Expected 3C after shifting, got 1e
TEST_FAILED
/workspace/banchmarks/pashencev/05_dft_testability/task_50/tb.v:159: $finish called at 126000 (1ps)
synthesis details 
[error]
None
errors[] 
[
  {
    "stage": "functional",
    "code": "functional.output_failed_marker",
    "message": "Functional output contains failure marker: TEST_FAILED. ERROR: wrong first shifted-out bit. Expected 1, got 0",
    "retryable": false,
    "details": {
      "marker": "TEST_FAILED"
    }
  },
  {
    "stage": "openlane",
    "code": "openlane.invalidated_by_functional_failure",
    "message": "OpenLane result invalidated because functional validation failed after output-marker correction",
    "retryable": false,
    "details": {}
  }
]
outcome 
{
  "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
}
sample_2 run_20260427_102437_171676_163c0c ok ok failed failed failed functional Functional output contains failure marker: TEST_FAILED. ERROR: scan load failed. Expected 3C after shifting, got 9e
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\deepseek-coder-v2-16b\rag_off\benchmarks\ilyasov\tasks\ilyasov__05_dft_testability__task_50\samples\run_20260427_102437_171676_163c0c__sample_2
generated.v preview 
module scan_reg8 (
    input clk,
    input rst_n,
    input scan_en,
    input scan_in,
    input load_en,
    input [7:0] data_in,
    output reg [7:0] data_out,
    output reg scan_out
);

reg [7:0] shift_reg;

always @(posedge clk or negedge rst_n) begin
    if (!rst_n) begin
        data_out <= 8'b0;
        scan_out <= 1'b0;
        shift_reg <= 8'b0;
    end else if (scan_en) begin
        shift_reg <= {shift_reg[6:0], scan_in};
        data_out <= shift_reg;
        scan_out <= shift_reg[7];
    end else if (!scan_en && load_en) begin
        data_out <= data_in;
        shift_reg <= data_in;
        scan_out <= 1'b0;
    end else if (!scan_en && !load_en) begin
        data_out <= shift_reg;
        scan_out <= 1'b0;
    end
end
...
functional details 
[stdout]
ERROR: scan load failed. Expected 3C after shifting, got 9e
TEST_FAILED
/workspace/banchmarks/pashencev/05_dft_testability/task_50/tb.v:159: $finish called at 126000 (1ps)
synthesis details 
[error]
None
errors[] 
[
  {
    "stage": "functional",
    "code": "functional.output_failed_marker",
    "message": "Functional output contains failure marker: TEST_FAILED. ERROR: scan load failed. Expected 3C after shifting, got 9e",
    "retryable": false,
    "details": {
      "marker": "TEST_FAILED"
    }
  },
  {
    "stage": "openlane",
    "code": "openlane.invalidated_by_functional_failure",
    "message": "OpenLane result invalidated because functional validation failed after output-marker correction",
    "retryable": false,
    "details": {}
  }
]
outcome 
{
  "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
}
sample_3 run_20260427_102437_171676_163c0c ok ok failed failed failed functional Functional output contains failure marker: TEST_FAILED. ERROR: wrong first shifted-out bit. Expected 1, got 0
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\deepseek-coder-v2-16b\rag_off\benchmarks\ilyasov\tasks\ilyasov__05_dft_testability__task_50\samples\run_20260427_102437_171676_163c0c__sample_3
generated.v preview 
module scan_reg8 (
    input clk,
    input rst_n,
    input scan_en,
    input scan_in,
    input load_en,
    input [7:0] data_in,
    output reg [7:0] data_out,
    output reg scan_out
);

reg [7:0] shift_reg;

always @(posedge clk or negedge rst_n) begin
    if (!rst_n) begin
        data_out <= 8'b0;
        scan_out <= 1'b0;
        shift_reg <= 8'b0;
    end else if (scan_en) begin
        shift_reg <= {shift_reg[6:0], scan_in};
        data_out <= shift_reg;
        scan_out <= shift_reg[7];
    end else if (!scan_en && load_en) begin
        data_out <= data_in;
        scan_out <= 1'b0;
    end else begin
        data_out <= data_out;
        scan_out <= 1'b0;
    end
end

endmodule
functional details 
[stdout]
ERROR: wrong first shifted-out bit. Expected 1, got 0
ERROR: wrong third shifted-out bit. Expected 1, got 0
ERROR: wrong sixth shifted-out bit. Expected 1, got 0
ERROR: wrong eighth shifted-out bit. Expected 1, got 0
ERROR: scan load failed. Expected 3C after shifting, got 1e
TEST_FAILED
/workspace/banchmarks/pashencev/05_dft_testability/task_50/tb.v:159: $finish called at 126000 (1ps)
synthesis details 
[error]
None
errors[] 
[
  {
    "stage": "functional",
    "code": "functional.output_failed_marker",
    "message": "Functional output contains failure marker: TEST_FAILED. ERROR: wrong first shifted-out bit. Expected 1, got 0",
    "retryable": false,
    "details": {
      "marker": "TEST_FAILED"
    }
  },
  {
    "stage": "openlane",
    "code": "openlane.invalidated_by_functional_failure",
    "message": "OpenLane result invalidated because functional validation failed after output-marker correction",
    "retryable": false,
    "details": {}
  }
]
outcome 
{
  "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
}
sample_4 run_20260427_102437_171676_163c0c ok ok failed failed failed functional Functional output contains failure marker: TEST_FAILED. ERROR: wrong first shifted-out bit. Expected 1, got 0
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\deepseek-coder-v2-16b\rag_off\benchmarks\ilyasov\tasks\ilyasov__05_dft_testability__task_50\samples\run_20260427_102437_171676_163c0c__sample_4
generated.v preview 
module scan_reg8 (
    input clk,
    input rst_n,
    input scan_en,
    input scan_in,
    input load_en,
    input [7:0] data_in,
    output reg [7:0] data_out,
    output reg scan_out
);

reg [7:0] shift_reg;

always @(posedge clk or negedge rst_n) begin
    if (!rst_n) begin
        data_out <= 8'b0;
        scan_out <= 1'b0;
        shift_reg <= 8'b0;
    end else if (scan_en) begin
        shift_reg <= {shift_reg[6:0], scan_in};
        data_out <= shift_reg;
        scan_out <= shift_reg[7];
    end else if (!scan_en && load_en) begin
        data_out <= data_in;
        scan_out <= 1'b0;
    end else begin
        data_out <= data_out;
        scan_out <= 1'b0;
    end
end

endmodule
functional details 
[stdout]
ERROR: wrong first shifted-out bit. Expected 1, got 0
ERROR: wrong third shifted-out bit. Expected 1, got 0
ERROR: wrong sixth shifted-out bit. Expected 1, got 0
ERROR: wrong eighth shifted-out bit. Expected 1, got 0
ERROR: scan load failed. Expected 3C after shifting, got 1e
TEST_FAILED
/workspace/banchmarks/pashencev/05_dft_testability/task_50/tb.v:159: $finish called at 126000 (1ps)
synthesis details 
[error]
None
errors[] 
[
  {
    "stage": "functional",
    "code": "functional.output_failed_marker",
    "message": "Functional output contains failure marker: TEST_FAILED. ERROR: wrong first shifted-out bit. Expected 1, got 0",
    "retryable": false,
    "details": {
      "marker": "TEST_FAILED"
    }
  },
  {
    "stage": "openlane",
    "code": "openlane.invalidated_by_functional_failure",
    "message": "OpenLane result invalidated because functional validation failed after output-marker correction",
    "retryable": false,
    "details": {}
  }
]
outcome 
{
  "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
}
sample_5 run_20260427_102437_171676_163c0c ok ok failed failed failed functional Functional output contains failure marker: TEST_FAILED. ERROR: wrong first shifted-out bit. Expected 1, got 0
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\deepseek-coder-v2-16b\rag_off\benchmarks\ilyasov\tasks\ilyasov__05_dft_testability__task_50\samples\run_20260427_102437_171676_163c0c__sample_5
generated.v preview 
module scan_reg8 (
    input clk,
    input rst_n,
    input scan_en,
    input scan_in,
    input load_en,
    input [7:0] data_in,
    output reg [7:0] data_out,
    output reg scan_out
);

reg [7:0] shift_reg;

always @(posedge clk or negedge rst_n) begin
    if (!rst_n) begin
        data_out <= 8'b0;
        scan_out <= 1'b0;
        shift_reg <= 8'b0;
    end else if (scan_en) begin
        // Shift operation in scan mode
        shift_reg <= {shift_reg[6:0], scan_in};
        data_out <= shift_reg;
        scan_out <= shift_reg[7];
    end else if (!scan_en && load_en) begin
        // Load operation in functional mode
        data_out <= data_in;
        scan_out <= 1'b0;
    end else if (!scan_en && !load_en) begin
        // Hold the current value in functional mode
        data_out <= data_out;
        scan_out <= 1'b0;
    end
...
functional details 
[stdout]
ERROR: wrong first shifted-out bit. Expected 1, got 0
ERROR: wrong third shifted-out bit. Expected 1, got 0
ERROR: wrong sixth shifted-out bit. Expected 1, got 0
ERROR: wrong eighth shifted-out bit. Expected 1, got 0
ERROR: scan load failed. Expected 3C after shifting, got 1e
TEST_FAILED
/workspace/banchmarks/pashencev/05_dft_testability/task_50/tb.v:159: $finish called at 126000 (1ps)
synthesis details 
[error]
None
errors[] 
[
  {
    "stage": "functional",
    "code": "functional.output_failed_marker",
    "message": "Functional output contains failure marker: TEST_FAILED. ERROR: wrong first shifted-out bit. Expected 1, got 0",
    "retryable": false,
    "details": {
      "marker": "TEST_FAILED"
    }
  },
  {
    "stage": "openlane",
    "code": "openlane.invalidated_by_functional_failure",
    "message": "OpenLane result invalidated because functional validation failed after output-marker correction",
    "retryable": false,
    "details": {}
  }
]
outcome 
{
  "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
}
sample_6 run_20260427_102437_171676_163c0c ok ok failed failed failed functional Functional output contains failure marker: TEST_FAILED. ERROR: wrong first shifted-out bit. Expected 1, got 0
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\deepseek-coder-v2-16b\rag_off\benchmarks\ilyasov\tasks\ilyasov__05_dft_testability__task_50\samples\run_20260427_102437_171676_163c0c__sample_6
generated.v preview 
module scan_reg8 (
    input clk,
    input rst_n,
    input scan_en,
    input scan_in,
    input load_en,
    input [7:0] data_in,
    output reg [7:0] data_out,
    output reg scan_out
);

reg [7:0] shift_reg;

always @(posedge clk or negedge rst_n) begin
    if (!rst_n) begin
        data_out <= 8'b0;
        scan_out <= 1'b0;
        shift_reg <= 8'b0;
    end else if (scan_en) begin
        shift_reg <= {shift_reg[6:0], scan_in};
        data_out <= shift_reg;
        scan_out <= shift_reg[7];
    end else if (!scan_en && load_en) begin
        data_out <= data_in;
        scan_out <= 1'b0;
    end else begin
        data_out <= data_out;
        scan_out <= 1'b0;
    end
end

endmodule
functional details 
[stdout]
ERROR: wrong first shifted-out bit. Expected 1, got 0
ERROR: wrong third shifted-out bit. Expected 1, got 0
ERROR: wrong sixth shifted-out bit. Expected 1, got 0
ERROR: wrong eighth shifted-out bit. Expected 1, got 0
ERROR: scan load failed. Expected 3C after shifting, got 1e
TEST_FAILED
/workspace/banchmarks/pashencev/05_dft_testability/task_50/tb.v:159: $finish called at 126000 (1ps)
synthesis details 
[error]
None
errors[] 
[
  {
    "stage": "functional",
    "code": "functional.output_failed_marker",
    "message": "Functional output contains failure marker: TEST_FAILED. ERROR: wrong first shifted-out bit. Expected 1, got 0",
    "retryable": false,
    "details": {
      "marker": "TEST_FAILED"
    }
  },
  {
    "stage": "openlane",
    "code": "openlane.invalidated_by_functional_failure",
    "message": "OpenLane result invalidated because functional validation failed after output-marker correction",
    "retryable": false,
    "details": {}
  }
]
outcome 
{
  "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
}
sample_7 run_20260427_102437_171676_163c0c ok ok failed failed failed functional Functional output contains failure marker: TEST_FAILED. ERROR: wrong first shifted-out bit. Expected 1, got 0
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\deepseek-coder-v2-16b\rag_off\benchmarks\ilyasov\tasks\ilyasov__05_dft_testability__task_50\samples\run_20260427_102437_171676_163c0c__sample_7
generated.v preview 
module scan_reg8 (
    input clk,
    input rst_n,
    input scan_en,
    input scan_in,
    input load_en,
    input [7:0] data_in,
    output reg [7:0] data_out,
    output reg scan_out
);

reg [7:0] shift_reg;

always @(posedge clk or negedge rst_n) begin
    if (!rst_n) begin
        data_out <= 8'b0;
        scan_out <= 1'b0;
        shift_reg <= 8'b0;
    end else if (scan_en) begin
        shift_reg <= {shift_reg[6:0], scan_in};
        data_out <= shift_reg;
        scan_out <= shift_reg[7];
    end else if (!scan_en && load_en) begin
        data_out <= data_in;
        scan_out <= 1'b0;
    end else begin
        data_out <= data_out;
        scan_out <= 1'b0;
    end
end

endmodule
functional details 
[stdout]
ERROR: wrong first shifted-out bit. Expected 1, got 0
ERROR: wrong third shifted-out bit. Expected 1, got 0
ERROR: wrong sixth shifted-out bit. Expected 1, got 0
ERROR: wrong eighth shifted-out bit. Expected 1, got 0
ERROR: scan load failed. Expected 3C after shifting, got 1e
TEST_FAILED
/workspace/banchmarks/pashencev/05_dft_testability/task_50/tb.v:159: $finish called at 126000 (1ps)
synthesis details 
[error]
None
errors[] 
[
  {
    "stage": "functional",
    "code": "functional.output_failed_marker",
    "message": "Functional output contains failure marker: TEST_FAILED. ERROR: wrong first shifted-out bit. Expected 1, got 0",
    "retryable": false,
    "details": {
      "marker": "TEST_FAILED"
    }
  },
  {
    "stage": "openlane",
    "code": "openlane.invalidated_by_functional_failure",
    "message": "OpenLane result invalidated because functional validation failed after output-marker correction",
    "retryable": false,
    "details": {}
  }
]
outcome 
{
  "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
}
sample_8 run_20260427_102437_171676_163c0c ok ok failed failed failed functional Functional output contains failure marker: TEST_FAILED. ERROR: wrong first shifted-out bit. Expected 1, got 0
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\deepseek-coder-v2-16b\rag_off\benchmarks\ilyasov\tasks\ilyasov__05_dft_testability__task_50\samples\run_20260427_102437_171676_163c0c__sample_8
generated.v preview 
module scan_reg8 (
    input clk,
    input rst_n,
    input scan_en,
    input scan_in,
    input load_en,
    input [7:0] data_in,
    output reg [7:0] data_out,
    output reg scan_out
);

reg [7:0] shift_reg;

always @(posedge clk or negedge rst_n) begin
    if (!rst_n) begin
        data_out <= 8'b0;
        scan_out <= 1'b0;
        shift_reg <= 8'b0;
    end else if (scan_en) begin
        shift_reg <= {shift_reg[6:0], scan_in};
        data_out <= shift_reg;
        scan_out <= shift_reg[7];
    end else if (!scan_en && load_en) begin
        data_out <= data_in;
        scan_out <= 1'b0;
    end else begin
        data_out <= data_out;
        scan_out <= 1'b0;
    end
end

endmodule
functional details 
[stdout]
ERROR: wrong first shifted-out bit. Expected 1, got 0
ERROR: wrong third shifted-out bit. Expected 1, got 0
ERROR: wrong sixth shifted-out bit. Expected 1, got 0
ERROR: wrong eighth shifted-out bit. Expected 1, got 0
ERROR: scan load failed. Expected 3C after shifting, got 1e
TEST_FAILED
/workspace/banchmarks/pashencev/05_dft_testability/task_50/tb.v:159: $finish called at 126000 (1ps)
synthesis details 
[error]
None
errors[] 
[
  {
    "stage": "functional",
    "code": "functional.output_failed_marker",
    "message": "Functional output contains failure marker: TEST_FAILED. ERROR: wrong first shifted-out bit. Expected 1, got 0",
    "retryable": false,
    "details": {
      "marker": "TEST_FAILED"
    }
  },
  {
    "stage": "openlane",
    "code": "openlane.invalidated_by_functional_failure",
    "message": "OpenLane result invalidated because functional validation failed after output-marker correction",
    "retryable": false,
    "details": {}
  }
]
outcome 
{
  "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
}
sample_9 run_20260427_102437_171676_163c0c ok ok failed failed failed functional Functional output contains failure marker: TEST_FAILED. ERROR: scan load failed. Expected 3C after shifting, got 9e
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\deepseek-coder-v2-16b\rag_off\benchmarks\ilyasov\tasks\ilyasov__05_dft_testability__task_50\samples\run_20260427_102437_171676_163c0c__sample_9
generated.v preview 
module scan_reg8 (
    input clk,
    input rst_n,
    input scan_en,
    input scan_in,
    input load_en,
    input [7:0] data_in,
    output reg [7:0] data_out,
    output reg scan_out
);

reg [7:0] shift_reg;

always @(posedge clk or negedge rst_n) begin
    if (!rst_n) begin
        data_out <= 8'b0;
        scan_out <= 1'b0;
        shift_reg <= 8'b0;
    end else if (scan_en) begin
        // Shift operation in scan mode
        shift_reg <= {shift_reg[6:0], scan_in};
        data_out <= shift_reg;
        scan_out <= shift_reg[7];
    end else if (!scan_en && load_en) begin
        // Load operation in functional mode
        data_out <= data_in;
        shift_reg <= data_in;
        scan_out <= 1'b0;
    end else if (!scan_en && !load_en) begin
        // Hold the current value in functional mode
        data_out <= shift_reg;
        scan_out <= 1'b0;
...
functional details 
[stdout]
ERROR: scan load failed. Expected 3C after shifting, got 9e
TEST_FAILED
/workspace/banchmarks/pashencev/05_dft_testability/task_50/tb.v:159: $finish called at 126000 (1ps)
synthesis details 
[error]
None
errors[] 
[
  {
    "stage": "functional",
    "code": "functional.output_failed_marker",
    "message": "Functional output contains failure marker: TEST_FAILED. ERROR: scan load failed. Expected 3C after shifting, got 9e",
    "retryable": false,
    "details": {
      "marker": "TEST_FAILED"
    }
  },
  {
    "stage": "openlane",
    "code": "openlane.invalidated_by_functional_failure",
    "message": "OpenLane result invalidated because functional validation failed after output-marker correction",
    "retryable": false,
    "details": {}
  }
]
outcome 
{
  "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
}
sample_10 run_20260427_102437_171676_163c0c ok ok failed failed failed functional Functional output contains failure marker: TEST_FAILED. ERROR: wrong first shifted-out bit. Expected 1, got 0
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\deepseek-coder-v2-16b\rag_off\benchmarks\ilyasov\tasks\ilyasov__05_dft_testability__task_50\samples\run_20260427_102437_171676_163c0c__sample_10
generated.v preview 
module scan_reg8 (
    input clk,
    input rst_n,
    input scan_en,
    input scan_in,
    input load_en,
    input [7:0] data_in,
    output reg [7:0] data_out,
    output reg scan_out
);

reg [7:0] shift_reg;

always @(posedge clk or negedge rst_n) begin
    if (!rst_n) begin
        data_out <= 8'b0;
        scan_out <= 1'b0;
        shift_reg <= 8'b0;
    end else if (scan_en) begin
        shift_reg <= {shift_reg[6:0], scan_in};
        data_out <= shift_reg;
        scan_out <= shift_reg[7];
    end else if (!scan_en && load_en) begin
        data_out <= data_in;
        scan_out <= 1'b0;
    end else begin
        data_out <= data_out;
        scan_out <= 1'b0;
    end
end

endmodule
functional details 
[stdout]
ERROR: wrong first shifted-out bit. Expected 1, got 0
ERROR: wrong third shifted-out bit. Expected 1, got 0
ERROR: wrong sixth shifted-out bit. Expected 1, got 0
ERROR: wrong eighth shifted-out bit. Expected 1, got 0
ERROR: scan load failed. Expected 3C after shifting, got 1e
TEST_FAILED
/workspace/banchmarks/pashencev/05_dft_testability/task_50/tb.v:159: $finish called at 126000 (1ps)
synthesis details 
[error]
None
errors[] 
[
  {
    "stage": "functional",
    "code": "functional.output_failed_marker",
    "message": "Functional output contains failure marker: TEST_FAILED. ERROR: wrong first shifted-out bit. Expected 1, got 0",
    "retryable": false,
    "details": {
      "marker": "TEST_FAILED"
    }
  },
  {
    "stage": "openlane",
    "code": "openlane.invalidated_by_functional_failure",
    "message": "OpenLane result invalidated because functional validation failed after output-marker correction",
    "retryable": false,
    "details": {}
  }
]
outcome 
{
  "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
}