Optimal solution to COVRP instance P-55-8:
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Route = 2 30 48 47 21 28 22, Demand = 156, RLen = 60.254064
Route = 4 45 29 5 15 20 37 36, Demand = 141, RLen = 58.048075
Route = 6 33 1 43 42 41 23 49 24, Demand = 146, RLen = 70.100296
Route = 7 8 35 53 11 38 10, Demand = 150, RLen = 56.275461
Route = 17 51 16 3 44 32 50 18 25, Demand = 156, RLen = 65.037887
Route = 26 12 40 9 39 31, Demand = 137, RLen = 48.995215
Route = 34 46 52 27 13 54 19 14, Demand = 156, RLen = 53.842816
Sum of route lengths = 412.553814
CAP = 160
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