usi-verification-and-security / golem

Solver for Constrained Horn Clauses
MIT License
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Alethe: Fix handling of nullary predicates #63

Closed blishko closed 5 months ago

blishko commented 5 months ago

The changes in #62 broke proofs for systems with nullary predicates. This PR fixes handling of this case. Moreover, it uses simpler rule to derive one side of an equivalence from the equivalence itself and the other side.