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Harmonize integer div/mod semantics #230

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merged 2 commits into from
Oct 23, 2023

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s0mark
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@s0mark s0mark commented Oct 23, 2023

Fix the discrepancies between the semantics of integer division and modulo in C, Z3 and Theta (see issue #209):

  • ebbb6bf: Division in IntLitExpr was calculated using BigInteger.divide, which follows C semantics. Converted it to SMT semantics, and added missing tests for integer division to EvaluationTest.
  • be73b18: Added conversion from C semantics to SMT semantics to the C-frontend.

@leventeBajczi
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Thanks! I think you can go ahead with the merge as soon as the junit tests succeed. We'll fix formatting in the other PR.

@s0mark s0mark merged commit 455a89c into ftsrg:xcfa-refactor Oct 23, 2023
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