Optimal solution to COVRP instance B-57-7:
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Route = 1 55 2 30 50 52 42 39 37, Demand = 98, RLen = 97.740533
Route = 16 24 26 19 41 34 17 51 9, Demand = 100, RLen = 92.391152
Route = 22 14 7 32 43 47 20, Demand = 100, RLen = 109.800036
Route = 27 13 33 49 44 21 10 3, Demand = 100, RLen = 74.559915
Route = 48 45 15 11 31 6, Demand = 99, RLen = 102.500929
Route = 54 35 40 29 4 46 23 5, Demand = 100, RLen = 85.554522
Route = 56 18 25 28 8 53 12 38 36, Demand = 100, RLen = 83.817299
Sum of route lengths = 646.364386
CAP = 100
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