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add general purpose emptiness/non-emptiness check

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-05-26 20:42:21 -07:00
parent 33cdc06eb4
commit 88e36c6bf3
8 changed files with 298 additions and 65 deletions
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6
src/smt/seq_regex.h
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@ -65,6 +65,8 @@ namespace smt {
bool unfold_cofactors(expr_ref& r, literal_vector& conds);
bool is_member(expr* r, expr* u);
public:
seq_regex(theory_seq& th);
@ -84,6 +86,10 @@ namespace smt {
void propagate_eq(expr* r1, expr* r2);
void propagate_ne(expr* r1, expr* r2);
void propagate_is_non_empty(literal lit);
void propagate_is_empty(literal lit);
};