tests/test.sh exit code (0 → resolved); the classification below is post-hoc and cannot change it.module TopModule (
input wire clk,
input wire rst,
input wire op_valid_i,
input wire [1:0] op_class_i,
input wire [1:0] op_rd_i,
input wire [15:0] op_data_i,
input wire c2_done_i,
output wire op_accept_o,
output reg wb_valid_o,
output reg [1:0] wb_rd_o,
output reg [15:0] wb_data_o,
output wire c2_busy_o,
output reg [3:0] inflight_o
);
// Per-class slots
reg s0_valid;
reg [1:0] s0_rd;
reg [15:0] s0_data;
reg s1_valid;
reg s1_ready; // becomes ready one cycle after store (2 cycles after accept)
reg [1:0] s1_rd;
reg [15:0] s1_data;
reg s2_valid;
reg s2_ready; // sticky once c2_done seen while busy
reg [1:0] s2_rd;
reg [15:0] s2_data;
// -------- Combinational accept --------
wire dest_free = ~inflight_o[op_rd_i];
wire slot_empty = (op_class_i == 2'd0) ? ~s0_valid :
(op_class_i == 2'd1) ? ~s1_valid :
(op_class_i == 2'd2) ? ~s2_valid : 1'b0;
wire accept = ~rst & op_valid_i & (op_class_i != 2'd3) & dest_free & slot_empty;
wire accept0 = accept & (op_class_i == 2'd0);
wire accept1 = accept & (op_class_i == 2'd1);
wire accept2 = accept & (op_class_i == 2'd2);
assign op_accept_o = accept;
assign c2_busy_o = ~rst & s2_valid;
// -------- Readiness and writeback selection --------
wire ready0 = s0_valid;
wire ready1 = s1_valid & s1_ready;
wire ready2 = s2_valid & s2_ready;
wire sel0 = ready0;
wire sel1 = ready1 & ~ready0;
wire sel2 = ready2 & ~ready0 & ~ready1;
// -------- Combinational writeback outputs --------
always @* begin
wb_valid_o = 1'b0;
wb_rd_o = 2'b00;
wb_data_o = 16'h0000;
if (~rst) begin
if (sel0) begin
wb_valid_o = 1'b1;
wb_rd_o = s0_rd;
wb_data_o = s0_data;
end else if (sel1) begin
wb_valid_o = 1'b1;
wb_rd_o = s1_rd;
wb_data_o = s1_data;
end else if (sel2) begin
wb_valid_o = 1'b1;
wb_rd_o = s2_rd;
wb_data_o = s2_data;
end
end
end
// -------- Sequential state --------
reg [3:0] inflight_next;
always @* begin
inflight_next = inflight_o;
if (accept) inflight_next[op_rd_i] = 1'b1;
if (sel0) inflight_next[s0_rd] = 1'b0;
else if (sel1) inflight_next[s1_rd] = 1'b0;
else if (sel2) inflight_next[s2_rd] = 1'b0;
end
always @(posedge clk) begin
if (rst) begin
s0_valid <= 1'b0;
s0_rd <= 2'b00;
s0_data <= 16'h0000;
s1_valid <= 1'b0;
s1_ready <= 1'b0;
s1_rd <= 2'b00;
s1_data <= 16'h0000;
s2_valid <= 1'b0;
s2_ready <= 1'b0;
s2_rd <= 2'b00;
s2_data <= 16'h0000;
inflight_o <= 4'b0000;
end else begin
// slot 0
if (accept0) begin
s0_valid <= 1'b1;
s0_rd <= op_rd_i;
s0_data <= op_data_i + 16'd1;
end else if (sel0) begin
s0_valid <= 1'b0;
end
// slot 1
if (accept1) begin
s1_valid <= 1'b1;
s1_ready <= 1'b0;
s1_rd <= op_rd_i;
s1_data <= op_data_i << 1;
end else if (sel1) begin
s1_valid <= 1'b0;
s1_ready <= 1'b0;
end else if (s1_valid & ~s1_ready) begin
s1_ready <= 1'b1;
end
// slot 2
if (accept2) begin
s2_valid <= 1'b1;
s2_ready <= 1'b0;
s2_rd <= op_rd_i;
s2_data <= op_data_i ^ 16'hffff;
end else if (sel2) begin
s2_valid <= 1'b0;
s2_ready <= 1'b0;
end else if (s2_valid & c2_done_i) begin
s2_ready <= 1'b1;
end
inflight_o <= inflight_next;
end
end
endmodule
No file changes, the agent left the workspace untouched.
TEST dut_present: PASS (/app/dut.sv exists) TEST dut_forbidden: PASS (no forbidden constructs) TEST dut_standalone: PASS (DUT elaborates standalone) TEST harness_prepare: PASS (harness names nonce-renamed) TEST dut_compiles: PASS (compiled with held-back reference/testbench) TEST simulation_completed: PASS (Mismatches: 363 in 1093 samples) TEST reference_equivalence: FAIL (363 mismatches in 1093 samples)
Reproduce this trial: git checkout 2f94510 && PYTHONPATH=src python3 scripts/build_site.py , then open trial/trial_03c1805bc6b94332. Re-running the agent live requires EVAL_PLATFORM_ENABLE_OAUTH_SMOKE=1 and is non-deterministic.
Trial trial_03c1805bc6b94332 · verifier authoritative; classifier explanatory.