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-rw-r--r--src/smt/unsat_core_manager.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/smt/unsat_core_manager.cpp b/src/smt/unsat_core_manager.cpp
index ba2c07326..22304f9e8 100644
--- a/src/smt/unsat_core_manager.cpp
+++ b/src/smt/unsat_core_manager.cpp
@@ -80,7 +80,10 @@ void UnsatCoreManager::getRelevantInstantiations(
const std::vector<Node>& instTerms = cur->getArguments();
Assert(cs.size() == 1);
Node q = cs[0]->getResult();
- insts[q].push_back({instTerms.begin(), instTerms.end()});
+ // the instantiation is a prefix of the arguments up to the number of
+ // variables
+ insts[q].push_back(
+ {instTerms.begin(), instTerms.begin() + q[0].getNumChildren()});
}
for (const std::shared_ptr<ProofNode>& cp : cs)
{
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