Optimal solution to COVRP instance P-22-8:
-----------------------------------------------
Route = 7 5, Demand = 29, RLen = 36.769874
Route = 8 6 3 4, Demand = 27, RLen = 52.966002
Route = 10 9 2 1, Demand = 29, RLen = 66.648833
Route = 12 17 21, Demand = 30, RLen = 50.413822
Route = 13 11, Demand = 25, RLen = 33.060606
Route = 14 18 20, Demand = 30, RLen = 42.543411
Route = 16 15, Demand = 30, RLen = 32.935651
Route = 19, Demand = 25, RLen = 30.528675
Sum of route lengths = 345.866874
CAP = 30
-----------------------------------------------