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Added literal promotion

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This commit is contained in:
Miguel Neves 2017-10-17 16:03:58 -07:00
parent 806690571e
commit cf2512ce90
2 changed files with 25 additions and 3 deletions
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src/sat/sat_lookahead.h
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@ -246,6 +246,7 @@ namespace sat {
inline bool is_true(literal l) const { return is_true_at(l, m_level); }
inline void set_true(literal l) { m_stamp[l.var()] = m_level + l.sign(); }
inline void set_undef(literal l) { m_stamp[l.var()] = 0; }
inline unsigned get_level(literal l) { return m_stamp[l.var()] & UINT_MAX - 1; }
void set_level(literal d, literal s) { m_stamp[d.var()] = (m_stamp[s.var()] & ~0x1) + d.sign(); }
lbool value(literal l) const { return is_undef(l) ? l_undef : is_true(l) ? l_true : l_false; }
@ -479,6 +480,7 @@ namespace sat {
unsigned push_lookahead1(literal lit, unsigned level);
void pop_lookahead1(literal lit, unsigned num_units);
void lookahead_backtrack();
void promote(unsigned base);
double mix_diff(double l, double r) const;
clause const& get_clause(watch_list::iterator it) const;
bool is_nary_propagation(clause const& c, literal l) const;