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add check for root literal assignment

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This commit is contained in:
Nikolaj Bjorner 2025-01-29 03:14:14 -08:00
parent fe5d17d515
commit 3379155a63
1 changed files with 4 additions and 0 deletions
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4
src/ast/sls/sls_context.cpp
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@ -142,6 +142,10 @@ namespace sls {
if (m_new_constraint || !unsat().empty())
return l_undef;
// check if root literals got flipped. is-sat assumes root literals are true
if (any_of(root_literals(), [&](sat::literal lit) { return !is_true(lit); }))
continue;
if (all_of(m_plugins, [&](auto* p) { return !p || p->is_sat(); })) {
VERIFY(unsat().empty() || !m_new_constraint);
values2model();