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add smt lookahead

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-05-17 20:24:29 +03:00
parent dd4b8b9ff8
commit d2dcb39c11
11 changed files with 187 additions and 17 deletions
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9
src/smt/smt_context.cpp
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@ -1784,15 +1784,6 @@ namespace smt {
m_bvar_inc *= INV_ACTIVITY_LIMIT;
}
expr* context::next_decision() {
bool_var var;
lbool phase;
m_case_split_queue->next_case_split(var, phase);
if (var == null_bool_var) return m_manager.mk_true();
m_case_split_queue->unassign_var_eh(var);
return bool_var2expr(var);
}
/**
\brief Execute next case split, return false if there are no
more case splits to be performed.