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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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25
src/sat/sat_drat.h
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@ -21,20 +21,8 @@ Notes:
namespace sat {
class drat {
public:
struct s_ext {};
struct s_unit {};
struct premise {
enum { t_clause, t_unit, t_ext } m_type;
union {
clause* m_clause;
unsigned m_literal;
};
premise(s_ext, literal l): m_type(t_ext), m_literal(l.index()) {}
premise(s_unit, literal l): m_type(t_unit), m_literal(l.index()) {}
premise(clause* c): m_type(t_clause), m_clause(c) {}
};
enum status { asserted, learned, deleted, ba, euf };
private:
enum status { asserted, learned, deleted, external };
struct watched_clause {
clause* m_clause;
literal m_l1, m_l2;
@ -91,9 +79,18 @@ namespace sat {
void add(literal l, bool learned);
void add(literal l1, literal l2, bool learned);
void add(clause& c, bool learned);
void add(literal_vector const& c, svector<premise> const& premises);
void add(literal_vector const& c, status st);
void add(literal_vector const& c); // add learned clause
// support for SMT - connect Boolean variables with AST nodes
// associate AST node id with Boolean variable v
void bool_def(bool_var v, unsigned n);
// declare AST node n with 'name' and arguments arg
void def_begin(unsigned n, symbol const& name);
void def_add_arg(unsigned arg);
void def_end();
bool is_cleaned(clause& c) const;
void del(literal l);
void del(literal l1, literal l2);