# MutantHub mutant #3341: Arithmetic operator mutation at script_patterns.ipp:299
# Repository: libbitcoin/libbitcoin-system @ 9fa0f9a07f31c5cc9ebe5efa05e6d4a6d12ba183
# File: include/bitcoin/system/impl/chain/script_patterns.ipp:299-299
# Review: APPROVED; outcome: KILLED
--- a/include/bitcoin/system/impl/chain/script_patterns.ipp
+++ b/include/bitcoin/system/impl/chain/script_patterns.ipp
@@ -299,1 +299,1 @@
-    const auto& n_op = ops[ops.size() - 2u];
+    const auto& n_op = ops[ops.size() + 2u];