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fix bug in root setting exposed by incremental mode pb_solver

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This commit is contained in:
Nikolaj Bjorner 2022-01-18 10:55:27 +01:00
parent 36cfb88f5f
commit 06feb71eb1
3 changed files with 18 additions and 12 deletions
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9
src/sat/smt/euf_solver.cpp
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@ -808,13 +808,16 @@ namespace euf {
bool solver::set_root(literal l, literal r) {
if (m_relevancy.enabled())
return false;
expr* e = bool_var2expr(l.var());
if (!e)
return true;
bool ok = true;
for (auto* s : m_solvers)
if (!s->set_root(l, r))
ok = false;
if (!ok)
return false;
expr* e = bool_var2expr(l.var());
if (!e)
return true;
if (m.is_eq(e) && !m.is_iff(e))
ok = false;
euf::enode* n = get_enode(e);