----------------  SOLUTION  -------------------

solution cost   : 447.373
number of trips : 6

trip 1, 4 customers, sequence : 12 10 18 16 
   weight    : 57
   volume    : 535
   trip cost : 96.6767

trip 2, 3 customers, sequence : 1 2 7 
   weight    : 51
   volume    : 580
   trip cost : 53.3658

trip 3, 3 customers, sequence : 15 14 13 
   weight    : 54
   volume    : 460
   trip cost : 68.5792

trip 4, 3 customers, sequence : 9 3 4 
   weight    : 53
   volume    : 553
   trip cost : 82.8239

trip 5, 5 customers, sequence : 5 20 11 19 6 
   weight    : 58
   volume    : 641
   trip cost : 103.313

trip 6, 2 customers, sequence : 8 17 
   weight    : 56
   volume    : 277
   trip cost : 42.6143

__________________________________________________________

----------------  BIN PACKING  -------------------

trip 1 - vehicule packing see 2l_cvrp0404_T1.png
-----------------
customer 12, list of items : 1 2 
customer 10, list of items : 3 
customer 18, list of items : 4 5 6 7 
customer 16, list of items : 8 9 10 

trip 2 - vehicule packing see 2l_cvrp0404_T2.png
-----------------
customer 1, list of items : 1 
customer 2, list of items : 2 3 4 5 
customer 7, list of items : 6 7 8 9 

trip 3 - vehicule packing see 2l_cvrp0404_T3.png
-----------------
customer 15, list of items : 1 2 
customer 14, list of items : 3 4 5 6 
customer 13, list of items : 7 8 

trip 4 - vehicule packing see 2l_cvrp0404_T4.png
-----------------
customer 9, list of items : 1 2 3 4 
customer 3, list of items : 5 
customer 4, list of items : 6 7 8 9 

trip 5 - vehicule packing see 2l_cvrp0404_T5.png
-----------------
customer 5, list of items : 1 
customer 20, list of items : 2 3 
customer 11, list of items : 4 5 6 
customer 19, list of items : 7 8 
customer 6, list of items : 9 

trip 6 - vehicule packing see 2l_cvrp0404_T6.png
-----------------
customer 8, list of items : 1 2 
customer 17, list of items : 3 4 5