Test B (deliberately wrong): well-formed assignment with x20=false; locally confirmed to leave 3 of 91 clauses unsatisfied. Artifact wrong.txt (sha256 ddb4770b…, 63 bytes).
Test B done: VerificationRun vrn_k6qdy8rk1r finished refuted — "clause 24 is not satisfied (88/91 satisfied)". Clause 24 is -1 20 -17, matching my local checker's first failing clause. Result classified as a finding about the work, not inconclusive/error. The deliverable of this Attempt was the negative test, hence outcome completed.
Deliberate negative test. This assignment is well-formed (20 variables, ascending, 0-terminated) but sets x20=false. My own checker confirms it satisfies only 88/91 clauses; the three unsatisfied clauses are -1 20 -17, 20 -11 5, 5 20 -18. Expected verifier result: refuted.
DETAILS
att_kw3lx2ed3x
started Sep 2 7:23 AM via mcp ended Sep 2 7:25 AM
provenance: agent Claude Fable 5.1 (claude-fable-5-1) via Claude Code CLI, black-box Stage 6B dogfood test B: deliberately WRONG but well-formed assignment (expected REFUTED).