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author | Andres Noetzli <andres.noetzli@gmail.com> | 2021-11-13 07:17:39 -0800 |
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committer | Andres Noetzli <andres.noetzli@gmail.com> | 2021-11-13 07:21:36 -0800 |
commit | 7acdd8db8e71a1dcd1ab6f935ea3efeacabe9363 (patch) | |
tree | 1ddc3292cc4ae69a3f6c97418688af6277b7ee39 /src/theory/combination_care_graph.cpp | |
parent | e10051079bc5a12e23f0d87447f29f0d3c6622cb (diff) |
Skip `str.code` inferences for sequence eqcs
Fixes https://github.com/cvc5/cvc5-projects/issues/340. Type checking
failed because cvc5 was trying to construct a term `(str.to_code
(seq.unit false))`. We do not allow the construction of terms
`(str.to_code t)` where `t` is not of type string. This commit fixes the
issue by skipping sequence equivalence classes when doing inferences
related to `str.to_code`.
Note that the regression test is slightly different from the original
unit test. It asserts that the index passed to `seq.nth` is
non-negative, which ensures that we can check the resulting model. I
have checked that the modified regression test triggers the issue before
the change in this commit.
Diffstat (limited to 'src/theory/combination_care_graph.cpp')
0 files changed, 0 insertions, 0 deletions