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fix #1908

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-10-30 14:15:29 -05:00
parent 5d06fa2347
commit 3c1c3d5987
12 changed files with 103 additions and 31 deletions
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5
src/sat/sat_solver.h
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@ -163,6 +163,7 @@ namespace sat {
bool m_par_syncing_clauses;
class lookahead* m_cuber;
class local_search* m_local_search;
statistics m_aux_stats;
@ -305,11 +306,11 @@ namespace sat {
TRACE("sat_assign", tout << l << " previous value: " << value(l) << "\n";);
switch (value(l)) {
case l_false: set_conflict(j, ~l); break;
case l_undef: assign_core(l, j); break;
case l_undef: assign_core(l, scope_lvl(), j); break;
case l_true: return;
}
}
void assign_core(literal l, justification jst);
void assign_core(literal l, unsigned lvl, justification jst);
void set_conflict(justification c, literal not_l);
void set_conflict(justification c) { set_conflict(c, null_literal); }
lbool status(clause const & c) const;