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sls: fix bug where unsat remains empty after a literal is flipped. The new satisfiable subset should be checked

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refined interface between solvers to expose fixed variables for tabu objectives
This commit is contained in:
Nikolaj Bjorner 2024-12-01 18:35:56 -08:00
parent 24c3cd38d1
commit e6feb8423a
8 changed files with 118 additions and 30 deletions
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4
src/tactic/sls/sls_tactic.cpp
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@ -78,7 +78,8 @@ public:
try {
res = m_sls->check();
}
catch (z3_exception&) {
catch (z3_exception& ex) {
IF_VERBOSE(1, verbose_stream() << "SLS threw an exception: " << ex.what() << "\n");
m_sls->collect_statistics(m_st);
throw;
}
@ -98,7 +99,6 @@ public:
}
else
mc = nullptr;
}
void operator()(goal_ref const& g,