added constraints for = in the same order as expected by VeriPB

org.sat4j.core/src/main/java/org/sat4j/minisat/core/Solver.java

@@ -497,8 +497,8 @@ public class Solver<D extends DataStructureFactory>
     public IConstr addExactly(IVecInt literals, int n)
             throws ContradictionException {
         ConstrGroup group = new ConstrGroup(false);
-        group.add(addAtMost(literals, n));
         group.add(addAtLeast(literals, n));
+        group.add(addAtMost(literals, n));
         return group;
     }
 

org.sat4j.pb/src/main/java/org/sat4j/pb/core/PBSolver.java

@@ -164,10 +164,10 @@ public abstract class PBSolver extends Solver<PBDataStructureFactory>
         assert vlits.size() == literals.size();
         assert literals.size() == coeffs.size();
         ConstrGroup group = new ConstrGroup(false);
-        group.add(addConstr(this.dsfactory.createPseudoBooleanConstraint(vlits,
-                coeffs, false, weight)));
         group.add(addConstr(this.dsfactory.createPseudoBooleanConstraint(vlits,
                 coeffs, true, weight)));
+        group.add(addConstr(this.dsfactory.createPseudoBooleanConstraint(vlits,
+                coeffs, false, weight)));
         return group;
     }