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add facility to dispense with cancellation (not activated at this point). Address #961 by expanding recurisve function definitions that are not tautologies if the current model does not validate

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-04-07 21:22:38 -07:00
parent 0c4b792dac
commit ec29a03c8f
8 changed files with 62 additions and 28 deletions
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3
src/sat/sat_simplifier.cpp
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@ -154,6 +154,8 @@ namespace sat {
if (!m_subsumption && !m_elim_blocked_clauses && !m_resolution)
return;
// solver::scoped_disable_checkpoint _scoped_disable_checkpoint(s);
initialize();
CASSERT("sat_solver", s.check_invariant());
@ -167,7 +169,6 @@ namespace sat {
CASSERT("sat_solver", s.check_invariant());
m_need_cleanup = false;
m_use_list.init(s.num_vars());
init_visited();
m_learned_in_use_lists = false;
if (learned) {
register_clauses(s.m_learned);