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fix #2468, adding assignment phase heuristic

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-08-10 15:24:42 -07:00
parent 42e21458ba
commit 9fa9aa09ff
19 changed files with 268 additions and 79 deletions
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10
src/smt/smt_context.cpp
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@ -1849,6 +1849,16 @@ namespace smt {
}
else {
switch (m_fparams.m_phase_selection) {
case PS_THEORY:
if (d.is_theory_atom()) {
theory * th = m_theories.get_plugin(d.get_theory());
lbool ph = th->get_phase(var);
if (ph != l_undef) {
is_pos = ph == l_true;
break;
}
}
Z3_fallthrough;
case PS_CACHING:
case PS_CACHING_CONSERVATIVE:
case PS_CACHING_CONSERVATIVE2: