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CVC5: Crashes with segmentation fault in SolverConcurrencyTest #347

@daniel-raffler

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@daniel-raffler

Hello everyone,
while working on #345 I noticed that one of the concurrent tests seems to (occasionally) fail for CVC5. The test case is testBvConcurrencyWithConcurrentContext from SolverConcurrencyTest and you can find two examples here and here. I was able to replicate the issue on my own machine by running the test in a loop. After a few iterations the test will always fail, however, I get a segfault instead of the assertion error. The issue seems to equally affect testIntConcurrencyWithConcurrentContext and is different from #310. Has this already been looked into?

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