Optimal solution to COVRP instance A-55-9:
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Route = 4 7 42 31 26 46 20, Demand = 100, RLen = 66.129860
Route = 5 53 40 16 38 47 39 49, Demand = 93, RLen = 121.406308
Route = 8 21 12 32, Demand = 70, RLen = 26.407318
Route = 10 15 11 2 51, Demand = 93, RLen = 84.451311
Route = 18 6 43 35 9, Demand = 96, RLen = 82.221304
Route = 25 41 23 52 24 44, Demand = 100, RLen = 83.457969
Route = 29 50 48 45 1, Demand = 93, RLen = 73.461938
Route = 30 22 19 27 28 13 54, Demand = 98, RLen = 87.726054
Route = 36 37 14 3 17 34 33, Demand = 96, RLen = 43.797704
Sum of route lengths = 669.059767
CAP = 100
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