# MutantHub mutant #720: Arithmetic operator mutation at descriptor.cpp:1447
# Repository: bitcoin/bitcoin @ 1aafd49077041e874d6b5f114927bc37e5b85d71
# File: src/script/descriptor.cpp:1447-1447
# Review: APPROVED; outcome: KILLED
--- a/src/script/descriptor.cpp
+++ b/src/script/descriptor.cpp
@@ -1447,1 +1447,1 @@
-    std::optional<int64_t> ScriptSize() const override { return 1 + 1 + 32; }
+    std::optional<int64_t> ScriptSize() const override { return 1 - 1 + 32; }