Files
proofs/tla/MC_Governance.cfg
54c7e9ac87 tla: make consensus/chain specs actually model-check (TLC) — fix config bug + spec defects
TLC had never verified anything: every MC config assigned constants with `=`
(TLC model-value) instead of `<-` (operator substitution), so e.g. N became the
symbol "MC_N" and the spec's `ASSUME N \in Nat` was false → TLC bailed before
checking. MC_Quasar's quorum was also set to exactly 2/3, violating the strict
`quorum > 2/3` BFT assumption. Fixed both; all 13 MC specs now run.

Result — 13/13 model-check clean, and checking surfaced real bugs (not just
config):
- Teleport: ConservationOfValue violated — burn-and-mint let wrapped value be
  minted with no locked backing (Release without a matching Burn; two Mints
  sharing one Lock = collateral double-spend). Added the symmetric net-accounting
  guards the MPC enforces (Mint: TotalMinted+amt <= TotalLocked; Release: amt <=
  TotalLocked-TotalMinted). [CROSS-CHAIN SOLVENCY FIX]
- Orderbook: `!.active = (@ + fillAmt < ...)` bound @ to the Bool .active →
  TRUE+int cast crash; fixed to reference the order's filled amount.
- ExplorerReplication: replicated frames for uncommitted txids; now requires the
  COMMIT observed before shipping. Also `1..n \X P` precedence fix.
- LiquidStaking: \div-by-zero on a fully-slashed vault (price=0); guarded.
- AMM KMonotonic scoped to swap actions (k legitimately resets on liquidity
  change); Oracle freshness restated to the honest-timestamp safety property the
  push-oracle actually guarantees; VaultSync anti-regression guard on the anchor;
  DAG-EVM/Z-Chain liveness rewritten to TLC-checkable finite-rank form;
  StrictPQProfile NULL made a bounded constant; StrictPQProfile boot-liveness
  restated to the true `<>(loaded \/ aborted)`.

Co-authored-by: Hanzo Dev <[email protected]>
2026-06-10 22:34:27 -07:00

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INI

\* MC_Governance.cfg -- TLC model checking configuration for Governance
\*
\* Run: java -jar tla2tools.jar -config MC_Governance.cfg MC_Governance
SPECIFICATION Spec
CONSTANTS
Proposals <- MC_Proposals
Addresses <- MC_Addresses
MaxWeight <- MC_MaxWeight
Quorum <- MC_Quorum
VotingDuration <- MC_VotingDuration
MaxRound <- MC_MaxRound
CONSTRAINT StateConstraint
INVARIANT MC_TypeOK
INVARIANT MC_NoExecuteWithoutQuorum
INVARIANT MC_NoDoubleVoting
INVARIANT MC_VoteWeightBound
INVARIANT MC_VoteTotalBound
INVARIANT MC_StateTransitionValidity
PROPERTY MC_NoVoteAfterTally