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authorAlan Mishchenko <alanmi@berkeley.edu>2007-09-11 08:01:00 -0700
committerAlan Mishchenko <alanmi@berkeley.edu>2007-09-11 08:01:00 -0700
commitd62ee0a90d14fe762015906b6b3a5ad23421d390 (patch)
tree0bf1f4bf286559c3cca61661d29d7ea312548778 /src/aig/fra/fraSat.c
parente8cf8415c5c8c31db650f549e54fd7a3aad48be0 (diff)
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Version abc70911
Diffstat (limited to 'src/aig/fra/fraSat.c')
-rw-r--r--src/aig/fra/fraSat.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/aig/fra/fraSat.c b/src/aig/fra/fraSat.c
index e1cc4c32..11029b69 100644
--- a/src/aig/fra/fraSat.c
+++ b/src/aig/fra/fraSat.c
@@ -75,6 +75,9 @@ int Fra_NodesAreEquiv( Fra_Man_t * p, Aig_Obj_t * pOld, Aig_Obj_t * pNew )
p->pSat = sat_solver_new();
p->nSatVars = 1;
sat_solver_setnvars( p->pSat, 1000 );
+ // var 0 is reserved for const1 node - add the clause
+ pLits[0] = toLit( 0 );
+ sat_solver_addclause( p->pSat, pLits, pLits + 1 );
}
// if the nodes do not have SAT variables, allocate them
@@ -232,6 +235,9 @@ int Fra_NodesAreImp( Fra_Man_t * p, Aig_Obj_t * pOld, Aig_Obj_t * pNew, int fCom
p->pSat = sat_solver_new();
p->nSatVars = 1;
sat_solver_setnvars( p->pSat, 1000 );
+ // var 0 is reserved for const1 node - add the clause
+ pLits[0] = toLit( 0 );
+ sat_solver_addclause( p->pSat, pLits, pLits + 1 );
}
// if the nodes do not have SAT variables, allocate them
@@ -318,6 +324,9 @@ int Fra_NodeIsConst( Fra_Man_t * p, Aig_Obj_t * pNew )
p->pSat = sat_solver_new();
p->nSatVars = 1;
sat_solver_setnvars( p->pSat, 1000 );
+ // var 0 is reserved for const1 node - add the clause
+ pLits[0] = toLit( 0 );
+ sat_solver_addclause( p->pSat, pLits, pLits + 1 );
}
// if the nodes do not have SAT variables, allocate them