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BDWGC and Z3 interact badly #4693

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fruffy opened this issue May 30, 2024 · 0 comments · May be fixed by #4697
Open

BDWGC and Z3 interact badly #4693

fruffy opened this issue May 30, 2024 · 0 comments · May be fixed by #4697
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bug This behavior is unintended and should be fixed. p4tools Topics related to the P4Tools back end

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fruffy commented May 30, 2024 •
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Currently, upgrading Z3 to a version beyond 4.11.2 will lead to a crash. The reason seems to be that trying to invoke malloc_usable_size does not work well with BDWGC.

We have now better control over our Z3 and BDWGC installations and could potentially fix this. But I do not know how to patch this yet. I raised this topic at the BDWGC repository, too: ivmai/bdwgc#497

A related issue is Z3Prover/z3#6890
@fruffy fruffy added bug This behavior is unintended and should be fixed. p4tools Topics related to the P4Tools back end labels May 30, 2024
@fruffy fruffy self-assigned this May 30, 2024
@fruffy fruffy linked a pull request May 31, 2024 that will close this issue
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Build Z3 from source for P4Tools. p4lang/p4c
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