diff options
Diffstat (limited to 'src/base')
| -rw-r--r-- | src/base/abci/abc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/base/abci/abc.c b/src/base/abci/abc.c index c055c3ad..6c470062 100644 --- a/src/base/abci/abc.c +++ b/src/base/abci/abc.c @@ -24658,6 +24658,11 @@ int Abc_CommandAbc9Equiv2( Abc_Frame_t * pAbc, int argc, char ** argv ) Abc_Print( -1, "Abc_CommandAbc9Equiv2(): There is no AIG.\n" ); return 1; } + if ( Gia_ManRegNum(pAbc->pGia) == 0 ) + { + Abc_Print( 0, "Abc_CommandAbc9Equiv2(): There is no flops. Nothing is done.\n" ); + return 0; + } if ( fUseCex ) { if ( pAbc->pCex->nPis != Gia_ManPiNum(pAbc->pGia) ) |