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gpt-5.4-nano | RAG off

13_rtllm_memory / task_03 | barrel_shifter

benchmarkrtllm
task_idrtllm/13_rtllm_memory/task_03
samples_total10
final_success_samples10
final_success_rate_samples100.0%
functional_pass_rate_samples100.0%
synth_pass_rate_samples100.0%
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 ok ok ok success Full pipeline success
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_off\benchmarks\rtllm\tasks\rtllm__13_rtllm_memory__task_03\samples\run_20260427_102437_171676_163c0c__sample_1
generated.v preview 
module barrel_shifter (
    input  [7:0] in,
    input  [2:0] ctrl,
    output [7:0] out
);

    wire [7:0] s4;
    wire [7:0] s2;
    wire [7:0] s1;

    mux2x1 m0  (.a(in[0]), .b(in[4]), .sel(ctrl[2]), .y(s4[0]));
    mux2x1 m1  (.a(in[1]), .b(in[5]), .sel(ctrl[2]), .y(s4[1]));
    mux2x1 m2  (.a(in[2]), .b(in[6]), .sel(ctrl[2]), .y(s4[2]));
    mux2x1 m3  (.a(in[3]), .b(in[7]), .sel(ctrl[2]), .y(s4[3]));
    mux2x1 m4  (.a(in[4]), .b(in[0]), .sel(ctrl[2]), .y(s4[4]));
    mux2x1 m5  (.a(in[5]), .b(in[1]), .sel(ctrl[2]), .y(s4[5]));
    mux2x1 m6  (.a(in[6]), .b(in[2]), .sel(ctrl[2]), .y(s4[6]));
    mux2x1 m7  (.a(in[7]), .b(in[3]), .sel(ctrl[2]), .y(s4[7]));

    mux2x1 m8  (.a(s4[0]), .b(s4[2]), .sel(ctrl[1]), .y(s2[0]));
    mux2x1 m9  (.a(s4[1]), .b(s4[3]), .sel(ctrl[1]), .y(s2[1]));
    mux2x1 m10 (.a(s4[2]), .b(s4[4]), .sel(ctrl[1]), .y(s2[2]));
    mux2x1 m11 (.a(s4[3]), .b(s4[5]), .sel(ctrl[1]), .y(s2[3]));
    mux2x1 m12 (.a(s4[4]), .b(s4[6]), .sel(ctrl[1]), .y(s2[4]));
    mux2x1 m13 (.a(s4[5]), .b(s4[7]), .sel(ctrl[1]), .y(s2[5]));
    mux2x1 m14 (.a(s4[6]), .b(s4[0]), .sel(ctrl[1]), .y(s2[6]));
    mux2x1 m15 (.a(s4[7]), .b(s4[1]), .sel(ctrl[1]), .y(s2[7]));

    mux2x1 m16 (.a(s2[0]), .b(s2[1]), .sel(ctrl[0]), .y(s1[0]));
    mux2x1 m17 (.a(s2[1]), .b(s2[2]), .sel(ctrl[0]), .y(s1[1]));
    mux2x1 m18 (.a(s2[2]), .b(s2[3]), .sel(ctrl[0]), .y(s1[2]));
    mux2x1 m19 (.a(s2[3]), .b(s2[4]), .sel(ctrl[0]), .y(s1[3]));
...
functional details 
[stdout]
=========== Test completed with           1 failures ===========
/workspace/banchmarks/rtllm/13_rtllm_memory/task_03/tb.v:31: $finish called at 80 (1s)
synthesis details 
[error]
None
outcome 
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": true,
  "openlane_ok": true,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": true,
  "success": true
}
sample_2 run_20260427_102437_171676_163c0c ok ok ok ok ok success Full pipeline success
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_off\benchmarks\rtllm\tasks\rtllm__13_rtllm_memory__task_03\samples\run_20260427_102437_171676_163c0c__sample_2
generated.v preview 
module barrel_shifter (
    input  [7:0] in,
    input  [2:0] ctrl,
    output [7:0] out
);

    wire [7:0] stage1;
    wire [7:0] stage2;
    wire [7:0] stage3;

    genvar i;

    // Stage 1: rotate by 4 if ctrl[2] is high
    generate
        for (i = 0; i < 8; i = i + 1) begin : gen_s1
            mux2X1 u_mux1 (
                .a   (in[i]),
                .b   (in[(i + 4) & 7]),
                .sel (ctrl[2]),
                .y   (stage1[i])
            );
        end
    endgenerate

    // Stage 2: rotate by 2 if ctrl[1] is high
    generate
        for (i = 0; i < 8; i = i + 1) begin : gen_s2
            mux2X1 u_mux2 (
                .a   (stage1[i]),
                .b   (stage1[(i + 2) & 7]),
                .sel (ctrl[1]),
                .y   (stage2[i])
...
functional details 
[stdout]
=========== Test completed with           1 failures ===========
/workspace/banchmarks/rtllm/13_rtllm_memory/task_03/tb.v:31: $finish called at 80 (1s)
synthesis details 
[error]
None
outcome 
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": true,
  "openlane_ok": true,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": true,
  "success": true
}
sample_3 run_20260427_102437_171676_163c0c ok ok ok ok ok success Full pipeline success
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_off\benchmarks\rtllm\tasks\rtllm__13_rtllm_memory__task_03\samples\run_20260427_102437_171676_163c0c__sample_3
generated.v preview 
module barrel_shifter (
    input  [7:0] in,
    input  [2:0] ctrl,
    output [7:0] out
);

    wire [7:0] stage1;
    wire [7:0] stage2;
    wire [7:0] stage3;

    genvar i;

    // Stage 1: rotate by 4 if ctrl[2] is high
    generate
        for (i = 0; i < 8; i = i + 1) begin : gen_stage1
            mux2x1 u_mux1 (
                .a   (in[i]),
                .b   (in[(i + 4) & 7]),
                .sel (ctrl[2]),
                .y   (stage1[i])
            );
        end
    endgenerate

    // Stage 2: rotate by 2 if ctrl[1] is high
    generate
        for (i = 0; i < 8; i = i + 1) begin : gen_stage2
            mux2x1 u_mux2 (
                .a   (stage1[i]),
                .b   (stage1[(i + 2) & 7]),
                .sel (ctrl[1]),
                .y   (stage2[i])
...
functional details 
[stdout]
=========== Test completed with           1 failures ===========
/workspace/banchmarks/rtllm/13_rtllm_memory/task_03/tb.v:31: $finish called at 80 (1s)
synthesis details 
[error]
None
outcome 
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": true,
  "openlane_ok": true,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": true,
  "success": true
}
sample_4 run_20260427_102437_171676_163c0c ok ok ok ok ok success Full pipeline success
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_off\benchmarks\rtllm\tasks\rtllm__13_rtllm_memory__task_03\samples\run_20260427_102437_171676_163c0c__sample_4
generated.v preview 
module barrel_shifter (
    input  [7:0] in,
    input  [2:0] ctrl,
    output [7:0] out
);

    wire [7:0] s4;
    wire [7:0] s2;
    wire [7:0] s1;

    genvar i;

    // Stage 1: rotate by 4 if ctrl[2] is high
    generate
        for (i = 0; i < 8; i = i + 1) begin : GEN_S4
            mux2x1 u_mux4 (
                .a   (in[i]),
                .b   (in[(i + 4) & 3'b111]),
                .sel (ctrl[2]),
                .y   (s4[i])
            );
        end
    endgenerate

    // Stage 2: rotate by 2 if ctrl[1] is high
    generate
        for (i = 0; i < 8; i = i + 1) begin : GEN_S2
            mux2x1 u_mux2 (
                .a   (s4[i]),
                .b   (s4[(i + 2) & 3'b111]),
                .sel (ctrl[1]),
                .y   (s2[i])
...
functional details 
[stdout]
=========== Test completed with           1 failures ===========
/workspace/banchmarks/rtllm/13_rtllm_memory/task_03/tb.v:31: $finish called at 80 (1s)
synthesis details 
[error]
None
outcome 
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": true,
  "openlane_ok": true,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": true,
  "success": true
}
sample_5 run_20260427_102437_171676_163c0c ok ok ok ok ok success Full pipeline success
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_off\benchmarks\rtllm\tasks\rtllm__13_rtllm_memory__task_03\samples\run_20260427_102437_171676_163c0c__sample_5
generated.v preview 
module barrel_shifter (
    input  [7:0] in,
    input  [2:0] ctrl,
    output [7:0] out
);

    wire [7:0] stage1;
    wire [7:0] stage2;

    mux2x1 m0  (.a(in[0]), .b(in[4]), .sel(ctrl[2]), .y(stage1[0]));
    mux2x1 m1  (.a(in[1]), .b(in[5]), .sel(ctrl[2]), .y(stage1[1]));
    mux2x1 m2  (.a(in[2]), .b(in[6]), .sel(ctrl[2]), .y(stage1[2]));
    mux2x1 m3  (.a(in[3]), .b(in[7]), .sel(ctrl[2]), .y(stage1[3]));
    mux2x1 m4  (.a(in[4]), .b(in[0]), .sel(ctrl[2]), .y(stage1[4]));
    mux2x1 m5  (.a(in[5]), .b(in[1]), .sel(ctrl[2]), .y(stage1[5]));
    mux2x1 m6  (.a(in[6]), .b(in[2]), .sel(ctrl[2]), .y(stage1[6]));
    mux2x1 m7  (.a(in[7]), .b(in[3]), .sel(ctrl[2]), .y(stage1[7]));

    mux2x1 m8   (.a(stage1[0]), .b(stage1[2]), .sel(ctrl[1]), .y(stage2[0]));
    mux2x1 m9   (.a(stage1[1]), .b(stage1[3]), .sel(ctrl[1]), .y(stage2[1]));
    mux2x1 m10  (.a(stage1[2]), .b(stage1[4]), .sel(ctrl[1]), .y(stage2[2]));
    mux2x1 m11  (.a(stage1[3]), .b(stage1[5]), .sel(ctrl[1]), .y(stage2[3]));
    mux2x1 m12  (.a(stage1[4]), .b(stage1[6]), .sel(ctrl[1]), .y(stage2[4]));
    mux2x1 m13  (.a(stage1[5]), .b(stage1[7]), .sel(ctrl[1]), .y(stage2[5]));
    mux2x1 m14  (.a(stage1[6]), .b(stage1[0]), .sel(ctrl[1]), .y(stage2[6]));
    mux2x1 m15  (.a(stage1[7]), .b(stage1[1]), .sel(ctrl[1]), .y(stage2[7]));

    mux2x1 m16  (.a(stage2[0]), .b(stage2[1]), .sel(ctrl[0]), .y(out[0]));
    mux2x1 m17  (.a(stage2[1]), .b(stage2[2]), .sel(ctrl[0]), .y(out[1]));
    mux2x1 m18  (.a(stage2[2]), .b(stage2[3]), .sel(ctrl[0]), .y(out[2]));
    mux2x1 m19  (.a(stage2[3]), .b(stage2[4]), .sel(ctrl[0]), .y(out[3]));
    mux2x1 m20  (.a(stage2[4]), .b(stage2[5]), .sel(ctrl[0]), .y(out[4]));
...
functional details 
[stdout]
=========== Test completed with           1 failures ===========
/workspace/banchmarks/rtllm/13_rtllm_memory/task_03/tb.v:31: $finish called at 80 (1s)
synthesis details 
[error]
None
outcome 
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": true,
  "openlane_ok": true,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": true,
  "success": true
}
sample_6 run_20260427_102437_171676_163c0c ok ok ok ok ok success Full pipeline success
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_off\benchmarks\rtllm\tasks\rtllm__13_rtllm_memory__task_03\samples\run_20260427_102437_171676_163c0c__sample_6
generated.v preview 
module barrel_shifter (
    input  [7:0] in,
    input  [2:0] ctrl,
    output [7:0] out
);

    wire [7:0] stage1;
    wire [7:0] stage2;
    wire [7:0] stage3;

    mux2x1 m0  (.a(in[0]), .b(in[4]), .sel(ctrl[2]), .y(stage1[0]));
    mux2x1 m1  (.a(in[1]), .b(in[5]), .sel(ctrl[2]), .y(stage1[1]));
    mux2x1 m2  (.a(in[2]), .b(in[6]), .sel(ctrl[2]), .y(stage1[2]));
    mux2x1 m3  (.a(in[3]), .b(in[7]), .sel(ctrl[2]), .y(stage1[3]));
    mux2x1 m4  (.a(in[4]), .b(in[0]), .sel(ctrl[2]), .y(stage1[4]));
    mux2x1 m5  (.a(in[5]), .b(in[1]), .sel(ctrl[2]), .y(stage1[5]));
    mux2x1 m6  (.a(in[6]), .b(in[2]), .sel(ctrl[2]), .y(stage1[6]));
    mux2x1 m7  (.a(in[7]), .b(in[3]), .sel(ctrl[2]), .y(stage1[7]));

    mux2x1 m8   (.a(stage1[0]), .b(stage1[2]), .sel(ctrl[1]), .y(stage2[0]));
    mux2x1 m9   (.a(stage1[1]), .b(stage1[3]), .sel(ctrl[1]), .y(stage2[1]));
    mux2x1 m10  (.a(stage1[2]), .b(stage1[4]), .sel(ctrl[1]), .y(stage2[2]));
    mux2x1 m11  (.a(stage1[3]), .b(stage1[5]), .sel(ctrl[1]), .y(stage2[3]));
    mux2x1 m12  (.a(stage1[4]), .b(stage1[6]), .sel(ctrl[1]), .y(stage2[4]));
    mux2x1 m13  (.a(stage1[5]), .b(stage1[7]), .sel(ctrl[1]), .y(stage2[5]));
    mux2x1 m14  (.a(stage1[6]), .b(stage1[0]), .sel(ctrl[1]), .y(stage2[6]));
    mux2x1 m15  (.a(stage1[7]), .b(stage1[1]), .sel(ctrl[1]), .y(stage2[7]));

    mux2x1 m16  (.a(stage2[0]), .b(stage2[1]), .sel(ctrl[0]), .y(stage3[0]));
    mux2x1 m17  (.a(stage2[1]), .b(stage2[2]), .sel(ctrl[0]), .y(stage3[1]));
    mux2x1 m18  (.a(stage2[2]), .b(stage2[3]), .sel(ctrl[0]), .y(stage3[2]));
    mux2x1 m19  (.a(stage2[3]), .b(stage2[4]), .sel(ctrl[0]), .y(stage3[3]));
...
functional details 
[stdout]
=========== Test completed with           1 failures ===========
/workspace/banchmarks/rtllm/13_rtllm_memory/task_03/tb.v:31: $finish called at 80 (1s)
synthesis details 
[error]
None
outcome 
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": true,
  "openlane_ok": true,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": true,
  "success": true
}
sample_7 run_20260427_102437_171676_163c0c ok ok ok ok ok success Full pipeline success
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_off\benchmarks\rtllm\tasks\rtllm__13_rtllm_memory__task_03\samples\run_20260427_102437_171676_163c0c__sample_7
generated.v preview 
module barrel_shifter (
    input  [7:0] in,
    input  [2:0] ctrl,
    output [7:0] out
);

    wire [7:0] stage1;
    wire [7:0] stage2;
    wire [7:0] stage3;

    genvar i;

    // Stage 1: shift by 4 when ctrl[2] is high (rotation)
    generate
        for (i = 0; i < 8; i = i + 1) begin : GEN_S1
            mux2X1 u_mux1 (
                .a   (in[i]),
                .b   (in[(i + 4) & 7]),
                .sel (ctrl[2]),
                .y   (stage1[i])
            );
        end
    endgenerate

    // Stage 2: shift by 2 when ctrl[1] is high (rotation)
    generate
        for (i = 0; i < 8; i = i + 1) begin : GEN_S2
            mux2X1 u_mux2 (
                .a   (stage1[i]),
                .b   (stage1[(i + 2) & 7]),
                .sel (ctrl[1]),
                .y   (stage2[i])
...
functional details 
[stdout]
=========== Test completed with           1 failures ===========
/workspace/banchmarks/rtllm/13_rtllm_memory/task_03/tb.v:31: $finish called at 80 (1s)
synthesis details 
[error]
None
outcome 
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": true,
  "openlane_ok": true,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": true,
  "success": true
}
sample_8 run_20260427_102437_171676_163c0c ok ok ok ok ok success Full pipeline success
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_off\benchmarks\rtllm\tasks\rtllm__13_rtllm_memory__task_03\samples\run_20260427_102437_171676_163c0c__sample_8
generated.v preview 
module barrel_shifter (
    input  [7:0] in,
    input  [2:0] ctrl,
    output [7:0] out
);

    wire [7:0] stage1;
    wire [7:0] stage2;
    wire [7:0] stage3;

    // Stage 1: rotate by 4 if ctrl[2] is high
    mux2x1 m1_0 (.a(in[0]), .b(in[4]), .sel(ctrl[2]), .y(stage1[0]));
    mux2x1 m1_1 (.a(in[1]), .b(in[5]), .sel(ctrl[2]), .y(stage1[1]));
    mux2x1 m1_2 (.a(in[2]), .b(in[6]), .sel(ctrl[2]), .y(stage1[2]));
    mux2x1 m1_3 (.a(in[3]), .b(in[7]), .sel(ctrl[2]), .y(stage1[3]));
    mux2x1 m1_4 (.a(in[4]), .b(in[0]), .sel(ctrl[2]), .y(stage1[4]));
    mux2x1 m1_5 (.a(in[5]), .b(in[1]), .sel(ctrl[2]), .y(stage1[5]));
    mux2x1 m1_6 (.a(in[6]), .b(in[2]), .sel(ctrl[2]), .y(stage1[6]));
    mux2x1 m1_7 (.a(in[7]), .b(in[3]), .sel(ctrl[2]), .y(stage1[7]));

    // Stage 2: rotate by 2 if ctrl[1] is high
    mux2x1 m2_0 (.a(stage1[0]), .b(stage1[2]), .sel(ctrl[1]), .y(stage2[0]));
    mux2x1 m2_1 (.a(stage1[1]), .b(stage1[3]), .sel(ctrl[1]), .y(stage2[1]));
    mux2x1 m2_2 (.a(stage1[2]), .b(stage1[4]), .sel(ctrl[1]), .y(stage2[2]));
    mux2x1 m2_3 (.a(stage1[3]), .b(stage1[5]), .sel(ctrl[1]), .y(stage2[3]));
    mux2x1 m2_4 (.a(stage1[4]), .b(stage1[6]), .sel(ctrl[1]), .y(stage2[4]));
    mux2x1 m2_5 (.a(stage1[5]), .b(stage1[7]), .sel(ctrl[1]), .y(stage2[5]));
    mux2x1 m2_6 (.a(stage1[6]), .b(stage1[0]), .sel(ctrl[1]), .y(stage2[6]));
    mux2x1 m2_7 (.a(stage1[7]), .b(stage1[1]), .sel(ctrl[1]), .y(stage2[7]));

    // Stage 3: rotate by 1 if ctrl[0] is high
    mux2x1 m3_0 (.a(stage2[0]), .b(stage2[1]), .sel(ctrl[0]), .y(stage3[0]));
...
functional details 
[stdout]
=========== Test completed with           1 failures ===========
/workspace/banchmarks/rtllm/13_rtllm_memory/task_03/tb.v:31: $finish called at 80 (1s)
synthesis details 
[error]
None
outcome 
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": true,
  "openlane_ok": true,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": true,
  "success": true
}
sample_9 run_20260427_102437_171676_163c0c ok ok ok ok ok success Full pipeline success
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_off\benchmarks\rtllm\tasks\rtllm__13_rtllm_memory__task_03\samples\run_20260427_102437_171676_163c0c__sample_9
generated.v preview 
module barrel_shifter (
    input  [7:0] in,
    input  [2:0] ctrl,
    output [7:0] out
);

    wire [7:0] stage0;
    wire [7:0] stage1;
    wire [7:0] stage2;

    genvar i;

    // Stage 0: shift/rotate by 4 if ctrl[2] is high
    generate
        for (i = 0; i < 8; i = i + 1) begin : GEN_S0
            mux2x1 u_mux (
                .a   (in[i]),
                .b   (in[(i + 4) & 7]),
                .sel (ctrl[2]),
                .y   (stage0[i])
            );
        end
    endgenerate

    // Stage 1: shift/rotate by 2 if ctrl[1] is high
    generate
        for (i = 0; i < 8; i = i + 1) begin : GEN_S1
            mux2x1 u_mux (
                .a   (stage0[i]),
                .b   (stage0[(i + 2) & 7]),
                .sel (ctrl[1]),
                .y   (stage1[i])
...
functional details 
[stdout]
=========== Test completed with           1 failures ===========
/workspace/banchmarks/rtllm/13_rtllm_memory/task_03/tb.v:31: $finish called at 80 (1s)
synthesis details 
[error]
None
outcome 
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": true,
  "openlane_ok": true,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": true,
  "success": true
}
sample_10 run_20260427_102437_171676_163c0c ok ok ok ok ok success Full pipeline success
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_off\benchmarks\rtllm\tasks\rtllm__13_rtllm_memory__task_03\samples\run_20260427_102437_171676_163c0c__sample_10
generated.v preview 
module barrel_shifter (
    input  [7:0] in,
    input  [2:0] ctrl,
    output [7:0] out
);

    wire [7:0] s4;
    wire [7:0] s2;
    wire [7:0] s1;

    genvar i;

    // Stage 1: shift by 4 when ctrl[2] is high
    generate
        for (i = 0; i < 8; i = i + 1) begin : GEN_S4
            mux2x1 u_mux4 (
                .a   (in[i]),
                .b   (in[(i + 4) & 7]),
                .sel (ctrl[2]),
                .y   (s4[i])
            );
        end
    endgenerate

    // Stage 2: shift by 2 when ctrl[1] is high
    generate
        for (i = 0; i < 8; i = i + 1) begin : GEN_S2
            mux2x1 u_mux2 (
                .a   (s4[i]),
                .b   (s4[(i + 2) & 7]),
                .sel (ctrl[1]),
                .y   (s2[i])
...
functional details 
[stdout]
=========== Test completed with           1 failures ===========
/workspace/banchmarks/rtllm/13_rtllm_memory/task_03/tb.v:31: $finish called at 80 (1s)
synthesis details 
[error]
None
outcome 
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": true,
  "openlane_ok": true,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": true,
  "success": true
}