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z3str3: detect and give up when symbolic automaton construction fails (#4384)

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typically this will happen due to non-constant terms in a RegLan expression
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Murphy Berzish 2020-05-28 11:57:33 -05:00 • committed by GitHub
parent ccebd4db59
commit 71ea7287bb
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3 changed files with 28 additions and 7 deletions
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src/smt/theory_str.h
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@ -623,7 +623,7 @@ protected:
void instantiate_axiom_RegexIn(enode * e);
// regex automata and length-aware regex
void solve_regex_automata();
bool solve_regex_automata();
unsigned estimate_regex_complexity(expr * re);
unsigned estimate_regex_complexity_under_complement(expr * re);
unsigned estimate_automata_intersection_difficulty(eautomaton * aut1, eautomaton * aut2);