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bv and gc of literals (#4692)

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* bv and gc of literals

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* overload

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* diseq

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* diseq

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-09-17 14:24:07 -07:00 • committed by GitHub
parent 2d52367368
commit 549753845e
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GPG key ID: 4AEE18F83AFDEB23
34 changed files with 1480 additions and 854 deletions
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17
src/sat/smt/sat_th.h
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@ -95,13 +95,15 @@ namespace euf {
virtual bool use_diseqs() const { return false; }
virtual void new_diseq_eh(euf::enode* a, euf::enode* b) {}
virtual void new_diseq_eh(euf::th_eq const& eq) {}
/**
\brief Parametric theories (e.g. Arrays) should implement this method.
*/
virtual bool is_shared(theory_var v) const { return false; }
};
class th_euf_solver : public th_solver {
@ -129,9 +131,15 @@ namespace euf {
euf::enode* e_internalize(expr* e) { internalize(e, m_is_redundant); return expr2enode(e); }
euf::enode* mk_enode(expr* e, bool suppress_args);
expr_ref mk_eq(expr* e1, expr* e2);
expr_ref mk_var_eq(theory_var v1, theory_var v2) { return mk_eq(var2expr(v1), var2expr(v2)); }
void rewrite(expr_ref& a);
virtual void push_core();
virtual void pop_core(unsigned n);
void force_push() { for (; m_num_scopes > 0; --m_num_scopes) push_core(); }
public:
th_euf_solver(euf::solver& ctx, euf::theory_id id);
virtual ~th_euf_solver() {}
@ -147,12 +155,9 @@ namespace euf {
trail_stack<euf::solver> & get_trail_stack();
bool is_attached_to_var(enode* n) const;
bool is_root(theory_var v) const { return var2enode(v)->is_root(); }
void push() override;
void pop(unsigned n) override;
void push() override { m_num_scopes++; }
void pop(unsigned n) override;
void lazy_push() { ++m_num_scopes; }
void force_push() { for (; m_num_scopes > 0; --m_num_scopes) push(); }
unsigned lazy_pop(unsigned n);
};