diff --git a/src/sat/sat_aig_simplifier.cpp b/src/sat/sat_aig_simplifier.cpp
index 6da01319d..1ae30d508 100644
--- a/src/sat/sat_aig_simplifier.cpp
+++ b/src/sat/sat_aig_simplifier.cpp
@@ -145,9 +145,6 @@ namespace sat {
             }
         }
 
-
-
-
         while (true) {
             unsigned j = 0;
             for (auto a : aig_defs) {