Files
proofs/tla/MC_StrictPQProfile.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

26 lines
877 B
INI

CONSTANTS
Profiles = {strict, permissive, fips}
LockedProfile = strict
Schemes = {mldsa65, mldsa87, pulsar65, pulsar87, ecdsa, ed25519}
StrictPQSchemes = {mldsa65, mldsa87, pulsar65, pulsar87}
HashSuites = {sha3_384, sha2_256}
StrictPQSuite = sha3_384
MaxHeight = 3
NULL = nullProfile
SPECIFICATION Spec
\* Bound admitted/signed scheme-sequence lengths so exploration terminates.
\* (AdmitTx appends without advancing height; see MC_StrictPQProfile.tla.)
CONSTRAINT StateConstraint
INVARIANTS
StrictE2EPQ
\* BootResolves is the faithful, TRUE liveness property of the boot gate.
\* The former HeightProgresses / ProfileEventuallyLoaded properties were
\* removed because they are not theorems of the model (a node may legitimately
\* abort at boot and never progress / never load) -- see StrictPQProfile.tla.
PROPERTIES
BootResolves