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Merge pull request #4325 from mtrberzi/issue4322

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ignore true/false/null literals during theory case split propagation
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Murphy Berzish 2020-05-15 20:42:33 -05:00 • committed by GitHub
commit ce07138008
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src/smt/smt_context.cpp
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@ -3018,7 +3018,8 @@ namespace smt {
literal l2 = *set_it;
if (l2 != l) {
b_justification js(l);
TRACE("theory_case_split", tout << "case split literal "; l2.display(tout, m, m_bool_var2expr.c_ptr()););
TRACE("theory_case_split", tout << "case split literal "; l2.display(tout, m, m_bool_var2expr.c_ptr()); tout << std::endl;);
if (l2 == true_literal || l2 == false_literal || l2 == null_literal) continue;
assign(~l2, js);
if (inconsistent()) {
TRACE("theory_case_split", tout << "conflict detected!" << std::endl;);