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-rw-r--r--src/misc/extra/extraUtilPerm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/misc/extra/extraUtilPerm.c b/src/misc/extra/extraUtilPerm.c
index b077a7a..3e8505f 100644
--- a/src/misc/extra/extraUtilPerm.c
+++ b/src/misc/extra/extraUtilPerm.c
@@ -269,7 +269,7 @@ int Abc_ZddDiff( Abc_ZddMan * p, int a, int b )
else
r0 = Abc_ZddDiff( p, A->False, B->False ),
r1 = Abc_ZddDiff( p, A->True, B->True ),
- r = Abc_ZddUniqueCreate( p, A->Var, A->True, r0 );
+ r = Abc_ZddUniqueCreate( p, A->Var, r1, r0 );
return Abc_ZddCacheInsert( p, a, b, ABC_ZDD_OPER_DIFF, r );
}
int Abc_ZddUnion( Abc_ZddMan * p, int a, int b )