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unsound equality propagation #5676

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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Nikolaj Bjorner 2021-12-08 09:02:05 -08:00
parent a5bd115235
commit e45ae32685
2 changed files with 23 additions and 10 deletions
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src/ast/rewriter/seq_axioms.cpp
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@ -1034,7 +1034,7 @@ namespace seq {
* Assume that r has the property that if r accepts string p
* then r does *not* accept any suffix of p. It is conceptually easy to
* convert a deterministic automaton for a regex to a suffix blocking acceptor
* by redirecting removing outgoing edges from accepting states and redirecting them
* by removing outgoing edges from accepting states and redirecting them
* to a sink. Alternative, introduce a different string membership predicate that is
* prefix sensitive.
*