test_matching_graph_symmetric[build_full] hypothesis.errors.Flaky: Hypothesis test_matching_graph_symmetric(request=<FixtureRequest for <Function test_matching_graph_symmetric[build_full]>>, caplog_context=make_caplog_context, build_func=build_full, searches=[Search(['p0'], -1.8000000000000003), Search(['p0'], -1.5), Search(['p0'], -4.5), Search(['p0'], -6.000030000000001), Search(['p0'], -1.103), Search(['p0'], -6.333363333333334), Search(['p0'], -101.5), Search(['p0'], -5.700000119209289), Search(['p0'], -1474.204842445216, has_newbie), Search(['p0'], 2496.9969999999994), Search(['p0'], -4.5), Search(['p0'], 1366.3907178955028), Search(['p0'], -101.0), Search(['p0'], -3.0029999999999997)]) produces unreliable results: Falsified on the first call but did not on a subsequent one Falsifying example: test_matching_graph_symmetric( request=<FixtureRequest for <Function test_matching_graph_symmetric[build_full]>>, caplog_context=make_caplog_context, build_func=build_full, searches=[Search(['p0'], -1.8000000000000003), Search(['p0'], -1.5), Search(['p0'], -4.5), Search(['p0'], -6.000030000000001), Search(['p0'], -1.103), Search(['p0'], -6.333363333333334), Search(['p0'], -101.5), Search(['p0'], -5.700000119209289), Search(['p0'], -1474.204842445216, has_newbie), Search(['p0'], 2496.9969999999994), Search(['p0'], -4.5), Search(['p0'], 1366.3907178955028), Search(['p0'], -101.0), Search(['p0'], -3.0029999999999997)], ) Unreliable test timings! On an initial run, this test took 487.31ms, which exceeded the deadline of 300.00ms, but on a subsequent run it took 20.55 ms, which did not. If you expect this sort of variability in your test timings, consider turning deadlines off for this test by setting deadline=None. You can reproduce this example by temporarily adding @reproduce_failure('6.90.0', b'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') as a decorator on your test case