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ensure that bca takes also lemmas into account

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-10-27 15:40:25 -07:00
parent 0919fd4075
commit 829c140087
21 changed files with 384 additions and 149 deletions
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10
src/sat/sat_clause.h
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@ -33,6 +33,10 @@ namespace sat {
class clause_allocator;
class clause;
std::ostream & operator<<(std::ostream & out, clause const & c);
class clause {
friend class clause_allocator;
friend class tmp_clause;
@ -61,8 +65,8 @@ namespace sat {
literal & operator[](unsigned idx) { SASSERT(idx < m_size); return m_lits[idx]; }
literal const & operator[](unsigned idx) const { SASSERT(idx < m_size); return m_lits[idx]; }
bool is_learned() const { return m_learned; }
void unset_learned() { SASSERT(is_learned()); m_learned = false; }
void shrink(unsigned num_lits) { SASSERT(num_lits <= m_size); if (num_lits < m_size) { m_size = num_lits; mark_strengthened(); } }
void unset_learned() { if (id() == 642277) std::cout << "unlearn " << *this << "\n"; SASSERT(is_learned()); m_learned = false; }
void shrink(unsigned num_lits) { SASSERT(num_lits <= m_size); if (num_lits < m_size) { m_size = num_lits; mark_strengthened(); if (id() == 642277) std::cout << "shrink " << *this << "\n"; } }
bool strengthened() const { return m_strengthened; }
void mark_strengthened() { m_strengthened = true; update_approx(); }
void unmark_strengthened() { m_strengthened = false; }
@ -101,7 +105,6 @@ namespace sat {
void set_reinit_stack(bool f) { m_reinit_stack = f; }
};
std::ostream & operator<<(std::ostream & out, clause const & c);
std::ostream & operator<<(std::ostream & out, clause_vector const & cs);
class bin_clause {
@ -180,6 +183,7 @@ namespace sat {
bool contains(literal l) const;
bool contains(bool_var v) const;
clause * get_clause() const { SASSERT(!is_binary()); return m_cls; }
bool was_removed() const { return !is_binary() && get_clause()->was_removed(); }
};
typedef svector<clause_wrapper> clause_wrapper_vector;