1 files changed, 3 insertions, 1 deletions
diff --git a/src/proof/arith_proof.cpp b/src/proof/arith_proof.cpp
index 7deb22d48..2660f723f 100644
--- a/src/proof/arith_proof.cpp
+++ b/src/proof/arith_proof.cpp
@@ -1156,8 +1156,10 @@ void LFSCArithProof::printTheoryLemmaProof(std::vector<Expr>& lemma,
   }
   else
   {
+    AlwaysAssert(false) << "arith hole!";
     os << "\n; Arithmetic proofs which use reasoning more complex than Farkas "
-          "proofs are currently unsupported\n(clausify_false trust)\n";
+          "proofs and bound tightening are currently unsupported\n"
+          "(clausify_false trust)\n";
   }
 }