diff options
Diffstat (limited to 'src/aig/fra/fraSat.c')
| -rw-r--r-- | src/aig/fra/fraSat.c | 9 |
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 |