Compiler warnings.

src/proof/pdr/pdrCnf.c

@@ -86,6 +86,7 @@ static inline int Pdr_ObjSatVar2FindOrAdd( Pdr_Man_t * p, int k, Aig_Obj_t * pOb
             int Lit = toLitCond( iVarNew, 1 );
             int RetValue = sat_solver_addclause( pSat, &Lit, &Lit + 1 );
             assert( RetValue == 1 );
+            (void) RetValue;
             sat_solver_compress( pSat );
         }
     }
@@ -131,6 +132,7 @@ int Pdr_ObjSatVar2( Pdr_Man_t * p, int k, Aig_Obj_t * pObj )
         }
         RetValue = sat_solver_addclause( pSat, Vec_IntArray(vLits), Vec_IntArray(vLits)+Vec_IntSize(vLits) );
         assert( RetValue );
+        (void) RetValue;
     }
     Vec_IntFree( vLits );
     return iVarThis;

src/sat/bsat/satSolver.c

@@ -546,6 +546,7 @@ static void sat_solver_record(sat_solver* s, veci* cls)
     {
         int RetValue = Sto_ManAddClause( (Sto_Man_t *)s->pStore, begin, end );
         assert( RetValue );
+        (void) RetValue;
     }
     ///////////////////////////////////
 /*
@@ -1333,6 +1334,7 @@ int sat_solver_addclause(sat_solver* s, lit* begin, lit* end)
     {
         int RetValue = Sto_ManAddClause( (Sto_Man_t *)s->pStore, begin, end );
         assert( RetValue );
+        (void) RetValue;
     }
     ///////////////////////////////////
 
@@ -1522,6 +1524,7 @@ int sat_solver_solve(sat_solver* s, lit* begin, lit* end, ABC_INT64_T nConfLimit
         {
             int RetValue = Sto_ManAddClause( (Sto_Man_t *)s->pStore, NULL, NULL );
             assert( RetValue );
+            (void) RetValue;
         }
         return l_False;
     }
@@ -1692,6 +1695,7 @@ int sat_solver_solve(sat_solver* s, lit* begin, lit* end, ABC_INT64_T nConfLimit
     {
         int RetValue = Sto_ManAddClause( (Sto_Man_t *)s->pStore, NULL, NULL );
         assert( RetValue );
+        (void) RetValue;
     }
     ////////////////////////////////////////////////
     return status;

src/sat/bsat/satSolver.h

@@ -203,6 +203,7 @@ static void sat_solver_compress(sat_solver* s)
     {
         int RetValue = sat_solver_simplify(s);
         assert( RetValue != 0 );
+        (void) RetValue;
     }
 }