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use theory agnostic axioms in more cases

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This commit is contained in:
Nikolaj Bjorner 2021-02-21 18:36:47 -08:00
parent 977082e2bd
commit d9fb40602e
6 changed files with 79 additions and 388 deletions
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6
src/ast/rewriter/seq_axioms.h
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@ -33,6 +33,8 @@ namespace seq {
seq_util seq;
skolem m_sk;
expr_ref_vector m_clause;
expr_ref_vector m_trail;
obj_map<expr, expr*> m_purified;
std::function<void(expr_ref_vector const&)> m_add_clause;
expr_ref mk_len(expr* s);
@ -49,6 +51,8 @@ namespace seq {
expr_ref mk_ge(expr* x, rational const& n) { return expr_ref(a.mk_ge(x, a.mk_int(n)), m); }
expr_ref mk_le(expr* x, rational const& n) { return expr_ref(a.mk_le(x, a.mk_int(n)), m); }
void gc_purify();
expr_ref is_digit(expr* ch);
expr_ref purify(expr* e);
expr_ref mk_digit2int(expr* ch);
@ -61,7 +65,7 @@ namespace seq {
bool is_drop_last(expr* s, expr* i, expr* l);
bool is_tail(expr* s, expr* i, expr* l);
bool is_extract_prefix0(expr* s, expr* i, expr* l);
bool is_extract_prefix(expr* s, expr* i, expr* l);
bool is_extract_suffix(expr* s, expr* i, expr* l);
void tail_axiom(expr* e, expr* s);