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short path for length-0 regex terms

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Murphy Berzish 2018-01-17 18:26:31 -05:00
parent c0ed683882
commit c2b268c645
2 changed files with 206 additions and 119 deletions
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src/smt/theory_str.h
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@ -556,6 +556,7 @@ protected:
bool check_regex_length_linearity(expr * re);
bool check_regex_length_linearity_helper(expr * re, bool already_star);
expr_ref infer_all_regex_lengths(expr * lenVar, expr * re, expr_ref_vector & freeVariables);
void find_automaton_initial_bounds(expr * str_in_re, eautomaton * aut);
bool refine_automaton_lower_bound(eautomaton * aut, rational current_lower_bound, rational & refined_lower_bound);
bool refine_automaton_upper_bound(eautomaton * aut, rational current_upper_bound, rational & refined_upper_bound);
expr_ref generate_regex_path_constraints(expr * stringTerm, eautomaton * aut, rational lenVal, expr_ref & characterConstraints);