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-rw-r--r--src/aig/fra/fraInd.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/aig/fra/fraInd.c b/src/aig/fra/fraInd.c
index 1ac2adab..8b9e863e 100644
--- a/src/aig/fra/fraInd.c
+++ b/src/aig/fra/fraInd.c
@@ -134,6 +134,7 @@ Aig_Man_t * Fra_FramesWithClasses( Fra_Man_t * p )
// start the fraig package
pManFraig = Aig_ManStart( Aig_ManObjNumMax(p->pManAig) * p->nFramesAll );
pManFraig->pName = Aig_UtilStrsav( p->pManAig->pName );
+ pManFraig->pSpec = Aig_UtilStrsav( p->pManAig->pSpec );
pManFraig->nRegs = p->pManAig->nRegs;
// create PI nodes for the frames
for ( f = 0; f < p->nFramesAll; f++ )