Optimal solution to COVRP instance F-45-4:
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Route = 15 1 2 16 10 17 18 11 12 14 13, Demand = 1634, RLen = 86.022540
Route = 20 21 8 19 25 26 22 23, Demand = 2010, RLen = 88.561502
Route = 24 9 37 38 36 42 39 40 34 3 4 35 7 5 6 27 29, Demand = 1620, RLen = 128.016987
Route = 43 44 30 41 31 32 33 28, Demand = 1956, RLen = 161.295115
Sum of route lengths = 463.896145
CAP = 2010
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