runtimeverification / runtimeverification/mir-semantics
Sort error in symbolic execution involving enums (unknown variant)
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@jberthold is already working on this.
Since Jun 25, 2025.
bug
- Dominant language
- Python
- Stars
- 52
- Forks
- 5
- PR merge metrics
- No merged PRs in 30d
Description
Symbolic execution can fail (in python client code) with a sort error that TypedLocal is not subsort of TypedValue when running on functions that take an enum as an argument.
The sort error appears to come from side conditions introduced by the legacy backend for branches that we would expect to get pruned (pending further investigation), and involves the traverseProjection rewrite symbol.
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