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add destructive equality resolution to existentials

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This commit is contained in:
Nikolaj Bjorner 2022-11-19 18:43:46 +07:00
parent 7da91f4313
commit ba68652c72
2 changed files with 72 additions and 23 deletions
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6
src/ast/rewriter/der.h
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@ -131,7 +131,7 @@ class der {
ptr_vector<var> m_inx2var;
unsigned_vector m_order;
expr_ref_vector m_subst_map;
expr_ref_buffer m_new_args;
expr_ref_vector m_new_args;
/**
\brief Return true if e can be viewed as a variable disequality.
@ -145,9 +145,11 @@ class der {
*/
bool is_var_diseq(expr * e, unsigned num_decls, var *& v, expr_ref & t);
bool is_var_eq(expr* e, unsigned num_decls, var*& v, expr_ref& t);
void get_elimination_order();
void create_substitution(unsigned sz);
void apply_substitution(quantifier * q, expr_ref_vector& ors, expr_ref & r);
void apply_substitution(quantifier * q, expr_ref_vector& lits, bool is_or, expr_ref & r);
void reduce1(quantifier * q, expr_ref & r, proof_ref & pr);