protected VRPProblemInstance(VRPProblemInstance original, Cloner cloner)
     : base(original, cloner)
 {
     evaluator = Evaluator;
     AttachEventHandlers();
 }
 protected VRPProblemInstance(VRPProblemInstance original, Cloner cloner)
   : base(original, cloner) {
   evaluator = Evaluator;
   AttachEventHandlers();
 }