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running updates to bv_solver (#4674)

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

* na

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

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

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

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

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

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

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

* dbg

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

* bv

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

* drat and fresh

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

* move ackerman functionality

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

* na

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

* debugability

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* towards debugability

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* missing file

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* na

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* remove csp

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-09-07 20:35:32 -07:00 • committed by GitHub
parent 4d1a2a2784
commit d02b0cde7a
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GPG key ID: 4AEE18F83AFDEB23
63 changed files with 3060 additions and 3095 deletions
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30
src/sat/smt/sat_th.h
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@ -36,11 +36,14 @@ namespace euf {
virtual bool visit(expr* e) { return false; }
virtual bool visited(expr* e) { return false; }
virtual bool post_visit(expr* e, bool sign, bool root) { return false; }
public:
virtual ~th_internalizer() {}
virtual sat::literal internalize(expr* e, bool sign, bool root, bool redundant) = 0;
virtual void internalize(expr* e, bool redundant) = 0;
/**
\brief Apply (interpreted) sort constraints on the given enode.
*/
@ -69,7 +72,7 @@ namespace euf {
/**
\brief compute dependencies for node n
*/
virtual void add_dep(euf::enode* n, top_sort<euf::enode>& dep) {}
virtual void add_dep(euf::enode* n, top_sort<euf::enode>& dep) { dep.insert(n, nullptr); }
/**
\brief should function be included in model.
@ -102,24 +105,39 @@ namespace euf {
solver & ctx;
euf::enode_vector m_var2enode;
unsigned_vector m_var2enode_lim;
unsigned m_num_scopes{ 0 };
smt_params const& get_config() const;
sat::literal get_literal(expr* e) const;
sat::literal expr2literal(expr* e) const;
region& get_region();
void add_unit(sat::literal lit);
void add_clause(sat::literal a, sat::literal b);
void add_clause(sat::literal a, sat::literal b, sat::literal c);
void add_clause(sat::literal a, sat::literal b, sat::literal c, sat::literal d);
public:
th_euf_solver(euf::solver& ctx, euf::theory_id id);
virtual ~th_euf_solver() {}
virtual theory_var mk_var(enode * n);
unsigned get_num_vars() const { return m_var2enode.size();}
enode* get_enode(expr* e) const;
enode* get_enode(theory_var v) const { return m_var2enode[v]; }
expr* get_expr(theory_var v) const { return get_enode(v)->get_owner(); }
expr_ref get_expr(sat::literal lit) const { expr* e = get_expr(lit.var()); return lit.sign() ? expr_ref(m.mk_not(e), m) : expr_ref(e, m); }
enode* expr2enode(expr* e) const;
enode* var2enode(theory_var v) const { return m_var2enode[v]; }
expr* var2expr(theory_var v) const { return var2enode(v)->get_owner(); }
expr* bool_var2expr(sat::bool_var v) const;
expr_ref literal2expr(sat::literal lit) const { expr* e = bool_var2expr(lit.var()); return lit.sign() ? expr_ref(m.mk_not(e), m) : expr_ref(e, m); }
theory_var get_th_var(enode* n) const { return n->get_th_var(get_id()); }
theory_var get_th_var(expr* e) const;
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 lazy_push() { ++m_num_scopes; }
void force_push() { for (; m_num_scopes > 0; --m_num_scopes) push(); }
unsigned lazy_pop(unsigned n);
};