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            α=14.0 —— Instance_15_1.0_3_1 —— 15 nodes       
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——————— Fri, 22 Mar 2024 15:24:40 ————————— seperate y_ij <= y_jj - x_ij on lazy constraints ————————— use blossom = false
ILP ——— 5 hubs —— 1—14—15—12—16
total time           11.09                gap                  0.0                  
blossom time         0                    nb blossom           0.0                  
LB <= UB             -1850<=-1850         subtour              0.0                  
connectivity cuts    28.0                 uc strategy          4                    
uc tolerance         0.01                 tildeV               2:15                 
2-opt strategy       0                                                              
explored_nodes       3                    n lazycuts edges     1.0                  
F                    0.0                  post procedure       true                 
o_i                  0                                                                                                                                                  
Found solution
RING NODES
1—14—15—12—16

RING
1  --- 14 | cost [182.0]
1  --- 16 | cost [0.0]
12 --- 15 | cost [308.0]
12 --- 16 | cost [84.0]
14 --- 15 | cost [196.0]

STAR
2  -->  1 | cost [-228.0]
3  --> 14 | cost [-204.0]
4  --> 15 | cost [-384.0]
5  --> 15 | cost [-160.0]
6  --> 15 | cost [-396.0]
7  -->  1 | cost [-140.0]
8  --> 15 | cost [-208.0]
9  --> 15 | cost [-364.0]
10 --> 15 | cost [-176.0]
11 --> 15 | cost [-156.0]
13 --> 15 | cost [-264.0]

BACKUP RING

BACKUP STAR
3  -->  1 | cost [-1.92]
4  --> 14 | cost [-3.68]
5  --> 14 | cost [-1.04]
6  --> 14 | cost [-3.6]
8  --> 14 | cost [-1.72]
9  --> 14 | cost [-3.4]
10 --> 14 | cost [-1.24]
11 --> 14 | cost [-1.44]
13 --> 14 | cost [-2.12]

B = 0.0
i★ = 1
j★ = 1
k★ = 1