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testing bdd for elim-vars

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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Nikolaj Bjorner 2017-10-18 17:37:38 -07:00
parent 6155362571
commit dc6ed64da1
9 changed files with 254 additions and 133 deletions
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1
src/sat/sat_lookahead.h
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@ -247,6 +247,7 @@ namespace sat {
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; }
void set_level(literal d, literal s) { m_stamp[d.var()] = (m_stamp[s.var()] & ~0x1) + d.sign(); }
unsigned get_level(literal d) const { return m_stamp[d.var()]; }
lbool value(literal l) const { return is_undef(l) ? l_undef : is_true(l) ? l_true : l_false; }
// set the level within a scope of the search.