VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
vrpBuilder.addAllJobs(services);
vrpBuilder.addAllVehicles(vehicles);
EuclideanCosts costs = new EuclideanCosts();
// Here I tried 0, 1000, 50, 20, nothing changes
costs.speed = 500;
vrpBuilder.setRoutingCost(costs);
vrpBuilder.setFleetSize(FleetSize.FINITE);
VehicleRoutingProblem vrp = vrpBuilder.build();
VehicleRoutingAlgorithm vra = Jsprit.Builder.newInstance(vrp) .setProperty(Jsprit.Parameter.FAST_REGRET, "true")
.setProperty(Jsprit.Parameter.THREADS, "4")
.buildAlgorithm();
Collection tempSolutions = vra.searchSolutions();