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arith_solver (#4733)

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* porting arithmetic solver

* integrating arithmetic

* lp

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

* na

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

* na

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

* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-10-16 10:49:46 -07:00 • committed by GitHub
parent 2841796a92
commit 44679d8f5b
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GPG key ID: 4AEE18F83AFDEB23
33 changed files with 3172 additions and 403 deletions
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7
src/sat/smt/array_solver.h
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@ -67,6 +67,7 @@ namespace array {
array_union_find m_find;
theory_var find(theory_var v) { return m_find.find(v); }
func_decl_ref_vector const& sort2diff(sort* s);
// internalize
bool visit(expr* e) override;
@ -131,7 +132,7 @@ namespace array {
axiom_record select_axiom(euf::enode* s, euf::enode* n) { return axiom_record(axiom_record::kind_t::is_select, n, s); }
axiom_record default_axiom(euf::enode* n) { return axiom_record(axiom_record::kind_t::is_default, n); }
axiom_record store_axiom(euf::enode* n) { return axiom_record(axiom_record::kind_t::is_store, n); }
axiom_record extensionality_axiom(euf::enode* n) { return axiom_record(axiom_record::kind_t::is_extensionality, n); }
axiom_record extensionality_axiom(euf::enode* x, euf::enode* y) { return axiom_record(axiom_record::kind_t::is_extensionality, x, y); }
axiom_record congruence_axiom(euf::enode* a, euf::enode* b) { return axiom_record(axiom_record::kind_t::is_congruence, a, b); }
scoped_ptr<sat::constraint_base> m_constraint;
@ -189,7 +190,7 @@ namespace array {
std::ostream& display_info(std::ostream& out, char const* id, euf::enode_vector const& v) const;
public:
solver(euf::solver& ctx, theory_id id);
~solver() override {}
~solver() override;
bool is_external(bool_var v) override { return false; }
bool propagate(literal l, sat::ext_constraint_idx idx) override { UNREACHABLE(); return false; }
void get_antecedents(literal l, sat::ext_justification_idx idx, literal_vector& r, bool probing) override {}
@ -202,6 +203,8 @@ namespace array {
void collect_statistics(statistics& st) const override;
euf::th_solver* clone(sat::solver* s, euf::solver& ctx) override;
void new_eq_eh(euf::th_eq const& eq) override;
bool use_diseqs() const override { return true; }
void new_diseq_eh(euf::th_eq const& eq) override;
bool unit_propagate() override;
void add_value(euf::enode* n, model& mdl, expr_ref_vector& values) override;
void add_dep(euf::enode* n, top_sort<euf::enode>& dep) override;