for(int i=0;i<9;i++){
VehicleRoutingProblem.Builder builder = VehicleRoutingProblem.Builder.newInstance();
String file = inputFolder + "/C1"+ getInstanceNu(i+1) + ".txt";
new SolomonReader(builder,1000).read(file);
VehicleRoutingProblem p = builder.build();
instances.add(new BenchmarkInstance("C1" + getInstanceNu(i+1), p, bestKnown.get(i).doubleValue(), bestKnowVehicles.get(i).doubleValue()));
}
return instances;
}