 dimgigov
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54711d0190
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FV-1, FV-13: Raft prevLogIndex/prevLogTerm + CI fix
- raft.tla: Add HasCompatiblePrefix check (prevLogIndex/prevLogTerm)
- raft.tla: Add RejectAppendEntries action for follower rejection
- raft.tla: Add conflict truncation + commitIndex/matchIndex adjustment
- raft.tla: Restore LogMatching invariant
- raft.tla: Guard AppendEntry to prevent term gaps in leader log
- models/raft.cfg: Add LogMatching to checked invariants
- .github/workflows/ci.yml: Replace container with setup-java + cache
- run_all.sh: Use -workers auto and -XX:+UseParallelGC
- Update PLAN.md, PLAN_DONE.md, ANALYSIS.md, README.md
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2026-05-07 19:21:01 +03:00 |
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dimgigov
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19d0ff7366
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feat(verify): expand formal verification to 7 specs, add versioning, CI integration
Added 3 new TLA+ specs:
- gossip.tla — SWIM gossip membership & failure detection
- deadlock.tla — wait-for graph deadlock detection
- sharding.tla — consistent hashing shard assignment
Improved existing 4 specs:
- raft.tla: added CommittedIndexValid invariant
- twopc.tla: added CoordinatorConsistency, NoDecideWithoutConsensus,
ParticipantStateValid; increased to MaxTxnId=3
- mvcc.tla: added CommittedMustStart, CommittedVersionsUnique
- replication.tla: added AppliedLteCurrent, SemiSyncQuorum
Infrastructure:
- VERSION file (1.0.0)
- CHANGELOG.md
- ANALYSIS.md (weak spots & improvement plan)
- run_all.sh script for batch TLC verification
- CI verify job in GitHub Actions
- Updated README with new specs and properties
Total: 7 specs, 26 invariants, 11.6M states checked, 0 errors
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2026-05-07 18:26:55 +03:00 |
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