Fix/freeze property literal #67
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MiniSAT melts assumed literals that were not explicitly frozen before. Therefore checking two equal properties could result in the property literal being eliminated if the solver was run with different assumptions between the two checks.
This test case contains two times the property `AG !a1306`. Without property literal freezing, this leads to an assertion violation because the corresponding literal is eliminated by MiniSAT.
kroening
approved these changes
Sep 22, 2023
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Supersedes #27, codepath has changed.
Property Literals are frozen preventing eliminated literals in assumptions.