STM cmd shrinking #85
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This PR adds
cmdargument shrinking toSTM.I tried different ways to express it - and ended up going with this one expressed as shrinking the prefix and suffix separately.
This comes at the cost of interpreting the sequential prefix twice over the model, which seems OK for now.
If no
cmdshrinker is provided by the user, no shrinking happens.In this situation the performance should be largely unaffected (let's confirm with the CI log).
Ideally
cmdargument shrinking could benefit from "deriving_shrinker" (see c-cube/qcheck#191).As an example, the PR provides a
cmdshrinker inneg_test/ref_test.ml.Together with #84 this PR fixes #65.