# MutantHub mutant #3986: Arithmetic operator mutation at validation.cpp:1415
# Repository: bitcoin/bitcoin @ ddea9196493d3b8fd841a36a6c53efd85dac7a05
# File: src/validation.cpp:1415-1415
# Review: APPROVED; outcome: SURVIVED
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -1415,1 +1415,1 @@
-                 ws.m_vsize - static_cast<int>(m_subpackage.m_conflicting_size));
+                 ws.m_vsize + static_cast<int>(m_subpackage.m_conflicting_size));