# MutantHub mutant #3353: Arithmetic operator mutation at script_patterns.ipp:341
# Repository: libbitcoin/libbitcoin-system @ 9fa0f9a07f31c5cc9ebe5efa05e6d4a6d12ba183
# File: include/bitcoin/system/impl/chain/script_patterns.ipp:341-341
# Review: APPROVED; outcome: KILLED
--- a/include/bitcoin/system/impl/chain/script_patterns.ipp
+++ b/include/bitcoin/system/impl/chain/script_patterns.ipp
@@ -341,1 +341,1 @@
-    const auto n = signatures(ops[size - 2u]);
+    const auto n = signatures(ops[size + 2u]);