Optimal solution to COVRP instance E-30-3:
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Route = 18 23 10 15 26 28 27 29 25 24 1 6, Demand = 176, RLen = 197.148470
Route = 19 20 22 3 4 5 2, Demand = 173, RLen = 85.075809
Route = 21 14 8 9 17 12 11 16 13 7, Demand = 161, RLen = 111.287838
Sum of route lengths = 393.512117
CAP = 180
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