gpt-5.4-nano | RAG off

module verified_fsm (
    input  IN,
    input  CLK,
    input  RST,
    output reg MATCH
);

    // Mealy FSM for detecting pattern 10011 with overlap:
    // States represent how much of the prefix has been matched so far.
    // Prefixes:
    // S0: ""      (matched length 0)
    // S1: "1"     (matched length 1)
    // S2: "10"    (matched length 2)
    // S3: "100"   (matched length 3)
    // S4: "1001"  (matched length 4)
    // S5: "10011" (match occurs on transition; no need to store as state)

    localparam S0 = 3'd0;
    localparam S1 = 3'd1;
    localparam S2 = 3'd2;
    localparam S3 = 3'd3;
    localparam S4 = 3'd4;

    reg [2:0] state, next_state;

    // Combinational next-state and Mealy output
    always @(*) begin
        MATCH = 1'b0;
        next_state = state;

        case (state)
            S0: begin
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm
3 error(s) during elaboration.
*** These modules were missing:
        fsm referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm\n3 error(s) during elaboration.\n*** These modules were missing:\n        fsm 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_fsm (
    input  IN,
    input  CLK,
    input  RST,
    output reg MATCH
);

    // Mealy FSM for detecting sequence 1 0 0 1 1
    // States represent how many initial bits of the pattern have been matched so far.
    // State encoding:
    // 0: none matched
    // 1: matched "1"
    // 2: matched "10"
    // 3: matched "100"
    // 4: matched "1001"
    // 5: matched "10011" (match asserted on transition into this state)
    reg [2:0] state, next_state;

    // Combinational next-state logic (Mealy match asserted in sequential block)
    always @(*) begin
        next_state = state;
        case (state)
            3'd0: begin
                if (IN) next_state = 3'd1;      // start with '1'
                else    next_state = 3'd0;
            end
            3'd1: begin
                if (!IN) next_state = 3'd2;     // got "10"
                else     next_state = 3'd1;     // "11" -> still have leading '1'
            end
            3'd2: begin
                if (!IN) next_state = 3'd3;     // got "100"
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm
3 error(s) during elaboration.
*** These modules were missing:
        fsm referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm\n3 error(s) during elaboration.\n*** These modules were missing:\n        fsm 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_fsm (
    input  IN,
    input  CLK,
    input  RST,
    output reg MATCH
);

    // Mealy FSM for detecting pattern 10011 with overlap:
    // States represent how much of the prefix of "10011" has been matched
    // with the most recent input bits.
    //
    // Prefixes:
    // S0: ""        (matched length 0)
    // S1: "1"       (length 1)
    // S2: "10"      (length 2)
    // S3: "100"     (length 3)
    // S4: "1001"    (length 4)
    // S5: "10011"   (length 5) -> match is asserted on transition, then go to next state for overlap

    localparam S0 = 3'd0;
    localparam S1 = 3'd1;
    localparam S2 = 3'd2;
    localparam S3 = 3'd3;
    localparam S4 = 3'd4;
    localparam S5 = 3'd5; // not strictly needed as a stable state, but kept for clarity

    reg [2:0] state, next_state;

    // Combinational next-state logic and Mealy output
    always @(*) begin
        MATCH = 1'b0;
        next_state = state;
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm
3 error(s) during elaboration.
*** These modules were missing:
        fsm referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm\n3 error(s) during elaboration.\n*** These modules were missing:\n        fsm 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_fsm (
    input  wire IN,
    input  wire CLK,
    input  wire RST,
    output reg  MATCH
);

    // Mealy FSM for detecting sequence 1 0 0 1 1
    // MATCH asserted on the same cycle as the last input bit (the final '1')
    // Supports overlap: e.g., 1 0 0 1 1 0 0 1 1 -> matches at 5th and 9th bits.
    localparam [2:0]
        S0 = 3'd0, // no partial match
        S1 = 3'd1, // matched "1"
        S2 = 3'd2, // matched "10"
        S3 = 3'd3, // matched "100"
        S4 = 3'd4, // matched "1001"
        S5 = 3'd5; // matched "10011" (transient; match already asserted)

    reg [2:0] state, next_state;

    // Combinational next-state logic
    always @(*) begin
        next_state = state;
        case (state)
            S0: begin
                if (IN) next_state = S1;
                else    next_state = S0;
            end
            S1: begin
                if (IN) next_state = S1; // "1" can start again
                else    next_state = S2; // "10"
            end
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm
3 error(s) during elaboration.
*** These modules were missing:
        fsm referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm\n3 error(s) during elaboration.\n*** These modules were missing:\n        fsm 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_fsm (
    input  wire IN,
    input  wire CLK,
    input  wire RST,
    output reg  MATCH
);

    // Mealy FSM for detecting sequence 1 0 0 1 1
    // MATCH asserted on the same cycle as the last input bit of the match.
    // Supports overlapping matches (e.g., ...0 0 1 1 0 0 1 1...).
    //
    // State meanings:
    // S0: no partial match
    // S1: matched "1"
    // S2: matched "10"
    // S3: matched "100"
    // S4: matched "1001"
    // S5: matched "10011" (transient; MATCH asserted when entering)
    localparam [2:0]
        S0 = 3'd0,
        S1 = 3'd1,
        S2 = 3'd2,
        S3 = 3'd3,
        S4 = 3'd4,
        S5 = 3'd5;

    reg [2:0] state, next_state;

    // Combinational next-state logic (Mealy output computed from current state and IN)
    always @(*) begin
        next_state = state;
        MATCH      = 1'b0;
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm
3 error(s) during elaboration.
*** These modules were missing:
        fsm referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm\n3 error(s) during elaboration.\n*** These modules were missing:\n        fsm 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_fsm (
    input  wire IN,
    input  wire CLK,
    input  wire RST,
    output reg  MATCH
);

    // Mealy FSM for detecting pattern 1 0 0 1 1
    // Also supports overlapping/continuous detection:
    // - MATCH asserted on the same cycle as the last '1' of each occurrence.
    // - After a match, state transitions allow detection of subsequent/overlapping sequences.
    //
    // States represent how many trailing prefix bits of the pattern
    // have been matched so far (with overlap handling).
    //
    // Pattern: P = 1 0 0 1 1
    // State meanings:
    // S0: none matched
    // S1: matched '1'
    // S2: matched '10'
    // S3: matched '100'
    // S4: matched '1001'
    // S5: matched '10011' (match occurs on transition into this state)
    //
    // Mealy output: MATCH asserted when completing the pattern on the current input.

    localparam S0 = 3'd0;
    localparam S1 = 3'd1;
    localparam S2 = 3'd2;
    localparam S3 = 3'd3;
    localparam S4 = 3'd4;
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm
3 error(s) during elaboration.
*** These modules were missing:
        fsm referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm\n3 error(s) during elaboration.\n*** These modules were missing:\n        fsm 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_fsm (
    input  IN,
    input  CLK,
    input  RST,
    output reg MATCH
);

    // Mealy FSM for detecting pattern 10011 with overlap:
    // States represent how much of the prefix of "10011" has been matched
    // with the most recent input processed.
    //
    // Prefixes:
    // S0: ""        (matched length 0)
    // S1: "1"       (matched length 1)
    // S2: "10"      (matched length 2)
    // S3: "100"     (matched length 3)
    // S4: "1001"    (matched length 4)
    // S5: "10011"   (match occurs on transition; no need to store as state)

    reg [2:0] state, next_state;

    // Combinational next-state and Mealy output
    always @(*) begin
        MATCH = 1'b0;
        next_state = state;

        case (state)
            3'd0: begin // ""
                if (IN) next_state = 3'd1;      // "1"
                else    next_state = 3'd0;      // ""
            end
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm
3 error(s) during elaboration.
*** These modules were missing:
        fsm referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm\n3 error(s) during elaboration.\n*** These modules were missing:\n        fsm 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_fsm (
    input  IN,
    input  CLK,
    input  RST,
    output reg MATCH
);

    // Mealy FSM for detecting pattern 10011 with overlap:
    // States represent how much of the prefix has been matched so far.
    // Prefixes: "" , "1", "10", "100", "1001"
    // On input, transition accordingly; MATCH asserted when completing "10011".
    localparam S0 = 3'd0; // ""
    localparam S1 = 3'd1; // "1"
    localparam S2 = 3'd2; // "10"
    localparam S3 = 3'd3; // "100"
    localparam S4 = 3'd4; // "1001"

    reg [2:0] state, next_state;

    always @(*) begin
        next_state = state;
        case (state)
            S0: begin
                if (IN) next_state = S1;
                else    next_state = S0;
            end
            S1: begin
                if (IN) next_state = S1; // "1" + "1" -> "1"
                else    next_state = S2; // "1" + "0" -> "10"
            end
            S2: begin
                if (IN) next_state = S1; // "10" + "1" -> "1"
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm
3 error(s) during elaboration.
*** These modules were missing:
        fsm referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm\n3 error(s) during elaboration.\n*** These modules were missing:\n        fsm 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_fsm (
    input  IN,
    input  CLK,
    input  RST,
    output MATCH
);

    // Mealy FSM for detecting sequence 1 0 0 1 1
    // MATCH is asserted in the same cycle as the last input bit of the match.
    // Also supports overlapping/continuous detection.
    //
    // State meaning:
    // S0: no partial match
    // S1: matched "1"
    // S2: matched "10"
    // S3: matched "100"
    // S4: matched "1001"
    // S5: matched "10011" (transient; MATCH asserted on entry via Mealy logic)
    //
    // Transitions are driven by IN each cycle.

    reg [2:0] state, next_state;
    reg match_r;

    localparam S0 = 3'd0;
    localparam S1 = 3'd1;
    localparam S2 = 3'd2;
    localparam S3 = 3'd3;
    localparam S4 = 3'd4;
    localparam S5 = 3'd5; // not strictly needed as a stable state, but kept for clarity

    // State register and registered MATCH (synchronous)
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm
3 error(s) during elaboration.
*** These modules were missing:
        fsm referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm\n3 error(s) during elaboration.\n*** These modules were missing:\n        fsm 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_fsm (
    input  IN,
    input  CLK,
    input  RST,
    output reg MATCH
);

    // Mealy FSM for detecting sequence 1 0 0 1 1
    // MATCH asserted on the same cycle as the last input bit of the match.
    //
    // State meanings:
    // S0: no partial match
    // S1: matched "1"
    // S2: matched "10"
    // S3: matched "100"
    // S4: matched "1001"
    // S5: matched "10011" (terminal, but we assert MATCH and transition immediately)
    //
    // Overlapping handled via transitions on current IN.

    localparam S0 = 3'd0;
    localparam S1 = 3'd1;
    localparam S2 = 3'd2;
    localparam S3 = 3'd3;
    localparam S4 = 3'd4;

    reg [2:0] state, next_state;

    always @(*) begin
        next_state = state;
        MATCH = 1'b0;
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm
3 error(s) during elaboration.
*** These modules were missing:
        fsm referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_control/task_05/tb.v:9: error: Unknown module type: fsm\n3 error(s) during elaboration.\n*** These modules were missing:\n        fsm 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
}