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-rw-r--r--src/base/io/ioWriteAiger.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/base/io/ioWriteAiger.c b/src/base/io/ioWriteAiger.c
index b1eb40f4..0a68c7ee 100644
--- a/src/base/io/ioWriteAiger.c
+++ b/src/base/io/ioWriteAiger.c
@@ -914,6 +914,7 @@ void Io_WriteAigerCex( Abc_Cex_t * pCex, Abc_Ntk_t * pNtk, void * pG, char * pFi
fprintf( pFile, "0" );
fprintf( pFile, " " );
Aig_ManCleanMarkA( pAig );
+ Aig_ManConst1(pAig)->fMarkA = 1;
for ( f = 0; f <= pCex->iFrame; f++ )
{
for ( k = 0; k < pCex->nPis; k++ )