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adding euf

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-08-31 14:36:16 -07:00
parent 314bd9277b
commit 4d41db3028
26 changed files with 353 additions and 152 deletions
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8
src/sat/sat_extension.h
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@ -45,6 +45,12 @@ namespace sat {
ext_constraint_list & get(literal l) { return m_use_list[l.index()]; }
ext_constraint_list const & get(literal l) const { return m_use_list[l.index()]; }
void finalize() { m_use_list.finalize(); }
bool contains(bool_var v) const {
if (m_use_list.size() <= 2*v)
return false;
literal lit(v, false);
return !get(lit).empty() || !get(~lit).empty();
}
};
class extension {
@ -53,7 +59,9 @@ namespace sat {
virtual unsigned get_id() const { return 0; }
virtual void set_solver(solver* s) = 0;
virtual void set_lookahead(lookahead* s) = 0;
virtual void init_search() {}
virtual bool propagate(literal l, ext_constraint_idx idx) = 0;
virtual bool is_external(bool_var v) = 0;
virtual double get_reward(literal l, ext_constraint_idx idx, literal_occs_fun& occs) const = 0;
virtual void get_antecedents(literal l, ext_justification_idx idx, literal_vector & r) = 0;
virtual bool is_extended_binary(ext_justification_idx idx, literal_vector & r) = 0;