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Address NSB review comments in seq_model.cpp

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Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
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copilot-swe-agent[bot] 2026-03-14 23:15:50 +00:00
parent dc5c7750f2
commit fdec148903
5 changed files with 49 additions and 91 deletions
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10
src/ast/rewriter/seq_rewriter.h
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@ -417,6 +417,16 @@ public:
/* Apply simplifications to the intersection to keep it normalized (r1 and r2 are not normalized)*/
expr_ref mk_regex_inter_normalize(expr* r1, expr* r2);
/*
* Extract some sequence that is a member of r.
* result is set to a concrete sequence expression if l_true is returned.
* For string-typed regexes, delegates to some_string_in_re.
* For other sequence types, checks nullability and returns the empty
* sequence if the regex accepts it; otherwise returns l_undef.
* Returns l_false if the regex is known to be empty.
*/
lbool some_seq_in_re(expr* r, expr_ref& result);
/*
* Extract some string that is a member of r.
* Return true if a valid string was extracted.