[Certora] Fix flaky SMT timeout on NoDebtWithoutCollateral (lockedOrNoDebtWithoutCollateral)#1080
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[Certora] Fix flaky SMT timeout on NoDebtWithoutCollateral (lockedOrNoDebtWithoutCollateral)#1080claude[bot] wants to merge 2 commits into
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…WithoutCollateral) Constrain the collateral-bitmap state space via requireInvariant hints (atMostMaxCollateralsBitsSet, nonZeroCollateralsAreActivated) and bound the RCF denominator WAD*WAD - lif*lltv using the market-creation maxLif bound, cutting nonlinear case splits in the liquidate preserved block.
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Requested by Mathis GD · Slack thread
The
lockedOrNoDebtWithoutCollateralinvariant leg is a flaky ~2h SMT timeout under-havocAllByDefault. The fix constrains the collateral-bitmap state space in theliquidatepreserved block viarequireInvarianthints (atMostMaxCollateralsBitsSet,nonZeroCollateralsAreActivated, both proved inCollateralBitmap.specand redeclared locally rather than imported) and bounds the RCF denominatorWAD*WAD - lif*lltvaway from zero using the market-creationmaxLifbound (createdMarketsRespectMaxLifBoundinCreatedMarkets.spec), removing the nonlinear case splits that dominate solve time.Supersedes closed #1077 (whose
_.price() => NONDETsummary was a proven no-op, since-havocAllByDefaultdoes not havoc static calls); verification is CI-only.Generated by Claude Code