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local updates

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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Nikolaj Bjorner 2017-02-01 18:04:08 -08:00
commit c21b860d4e
2 changed files with 48 additions and 34 deletions
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6
src/sat/sat_solver.h
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@ -115,6 +115,7 @@ namespace sat {
var_queue m_case_split_queue;
unsigned m_qhead;
unsigned m_scope_lvl;
unsigned m_search_lvl;
literal_vector m_trail;
clause_wrapper_vector m_clauses_to_reinit;
struct scope {
@ -220,11 +221,14 @@ namespace sat {
bool is_external(bool_var v) const { return m_external[v] != 0; }
bool was_eliminated(bool_var v) const { return m_eliminated[v] != 0; }
unsigned scope_lvl() const { return m_scope_lvl; }
bool at_search_lvl() const { return m_scope_lvl == 0; }
unsigned search_lvl() const { return m_search_lvl; }
bool at_search_lvl() const { return m_scope_lvl == m_search_lvl; }
bool at_base_lvl() const { return m_scope_lvl == 0; }
lbool value(literal l) const { return static_cast<lbool>(m_assignment[l.index()]); }
lbool value(bool_var v) const { return static_cast<lbool>(m_assignment[literal(v, false).index()]); }
unsigned lvl(bool_var v) const { return m_level[v]; }
unsigned lvl(literal l) const { return m_level[l.var()]; }
unsigned init_trail_size() const { return at_base_lvl() ? m_trail.size() : m_scopes[0].m_trail_lim; }
void assign(literal l, justification j) {
TRACE("sat_assign", tout << l << " previous value: " << value(l) << "\n";);
switch (value(l)) {