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add shortcuts for unit assertions, conflicts

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-02-11 10:56:36 -08:00
parent d73b7267e3
commit 93ee05648e
17 changed files with 55 additions and 94 deletions
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6
src/sat/sat_asymm_branch.cpp
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@ -367,7 +367,7 @@ namespace sat {
bool asymm_branch::propagate_literal(clause const& c, literal l) {
SASSERT(!s.inconsistent());
TRACE("asymm_branch_detail", tout << "assigning: " << l << "\n";);
s.assign(l, justification());
s.assign_scoped(l);
s.propagate_core(false); // must not use propagate(), since check_missed_propagation may fail for c
return s.inconsistent();
}
@ -423,11 +423,11 @@ namespace sat {
switch (new_sz) {
case 0:
s.set_conflict(justification());
s.set_conflict();
return false;
case 1:
TRACE("asymm_branch", tout << "produced unit clause: " << c[0] << "\n";);
s.assign(c[0], justification());
s.assign_unit(c[0]);
s.propagate_core(false);
scoped_d.del_clause();
return false; // check_missed_propagation() may fail, since m_clauses is not in a consistent state.