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equivalence: GenApp VSAM programs' D path and error paths proved (Part of #5252) - #5324
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…(lgacvs01, lgdpvs01, lgucvs01) proved (Part of #5252) lgicvs01-linked takes the real STARTCODE D path. The other three programs have no D path; their uncovered branches are the WRITE-ERROR-MESSAGE paths, now run with LGSTSQ in the same task and injected file RESPs (X6). Coverage ledgers recorded. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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Part of #5252 (pattern: #5251).
What changed
genapp-lgicvs01-linked(STARTCODE D): 4 scenarios, 7/12 branches, det-port PROVED. INVOKINGPROG arm and empty GENACNTL not exercised.The issue's premise was partly wrong
Only lgicvs01 has a STARTCODE D branch. The other programs' uncovered branches are the WRITE-ERROR-MESSAGE paths, so those cases use
programs(LGSTSQ in the same task) plus injectedfaultsand aregion(SYSID). Tasks reaching the logger are judged only up to LGSTSQ's second LINK, which X6 refuses by name (104-byte write from a 95-byte WRITE-MSG).Sibling gaps
Gates
pr_gates --fast6/6,--ratchets8/8, det-port PROVED on all four, coverage ledger check as expected. No golden masters or engine code touched. origin/main merged before push.Lessons for agents
equivalence.py runshows "0/N events equal" and "faults fired differ" for fault scenarios; that is the java-facade mode, not a failure. Usedet_port.py run.proof_sweep.py --record-ledgeronly works with--aggregate; usedet_coverage_ledger.py update SWEEP_DIR, and rerun it after any case.json edit (the case fingerprint changes).🤖 Generated with Claude Code