Important bugfix. r1291 through to this revision, about once per 200M random instance...

git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1310 e59a4935-1847-0410-ae03-e826735625c1

diff --git a/src/AST/NodeFactory/SimplifyingNodeFactory.cpp b/src/AST/NodeFactory/SimplifyingNodeFactory.cpp
index 9ee0c4ffe217764fe62fce918f4ac44db43d83ea..f98c5745ccd1158346e183468a50628eaf0b4f5a 100644 (file)
--- a/src/AST/NodeFactory/SimplifyingNodeFactory.cpp
+++ b/src/AST/NodeFactory/SimplifyingNodeFactory.cpp
@@ -1051,9 +1051,9 @@ ASTNode SimplifyingNodeFactory::CreateTerm(Kind kind, unsigned int width,
               result = children[1][0];
             else if (children[1].GetKind() == BEEV::BVPLUS && children[1][0].GetKind() == BEEV::BVUMINUS && children[0] == children[1][0][0] && children[1].Degree() ==2 )
               result = children[1][1];
-            else if (children[0].GetKind() == BEEV::BVPLUS && children[0][0].GetKind() == BEEV::BVUMINUS && children[1] == children[0][0][0] && children[1].Degree() ==2 )
+            else if (children[0].GetKind() == BEEV::BVPLUS && children[0][0].GetKind() == BEEV::BVUMINUS && children[1] == children[0][0][0] && children[0].Degree() ==2 )
               result = children[0][1];
-            else if (children[0].GetKind() == BEEV::BVPLUS && children[0][1].GetKind() == BEEV::BVUMINUS && children[1] == children[0][1][0] && children[1].Degree() ==2 )
+            else if (children[0].GetKind() == BEEV::BVPLUS && children[0][1].GetKind() == BEEV::BVUMINUS && children[1] == children[0][1][0] && children[0].Degree() ==2 )
                 result = children[0][0];
           }
         break;