Build (method = -2) #dp: 413 Step-3' Graph: 11 vertices and 136 arcs (0.00s) Step-4' Graph: 11 vertices and 136 arcs (0.00s) #V4/#V3 = 1.00 #A4/#A3 = 1.00 Ready! (0.00s) Optimize a model with 51 rows, 137 columns and 395 nonzeros Presolve removed 29 rows and 63 columns Presolve time: 0.00s Presolved: 22 rows, 74 columns, 202 nonzeros Variable types: 0 continuous, 74 integer (12 binary) Found heuristic solution: objective 171.0000000 Found heuristic solution: objective 148.0000000 Optimize a model with 22 rows, 74 columns and 202 nonzeros Presolved: 22 rows, 74 columns, 202 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 7.500e+01 Factor NZ : 2.530e+02 Factor Ops : 3.795e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 4.78963525e+02 -4.74174972e+02 1.16e+02 1.32e-01 1.45e+01 0s 1 2.17382013e+02 -7.04233770e+01 9.89e+00 3.33e-16 2.29e+00 0s 2 1.48643990e+02 9.26912130e+01 1.60e-01 1.89e-15 3.49e-01 0s 3 1.31123392e+02 1.23237330e+02 1.08e-02 1.39e-16 4.87e-02 0s 4 1.28313538e+02 1.27910466e+02 1.33e-04 3.33e-16 2.49e-03 0s 5 1.28255458e+02 1.28243177e+02 7.88e-07 2.22e-16 7.58e-05 0s 6 1.28250000e+02 1.28250000e+02 1.57e-11 2.22e-16 3.14e-09 0s 7 1.28250000e+02 1.28250000e+02 7.11e-15 2.22e-16 9.04e-15 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 1.28250000e+02 Root relaxation: objective 1.282500e+02, 41 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 128.25000 0 6 148.00000 128.25000 13.3% - 0s H 0 0 129.0000000 128.25000 0.58% - 0s Explored 0 nodes (53 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.290000000000e+02, best bound 1.290000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 129 Solution: 8 x [29] 10 x [23] 7 x [15] 9 x [12] 8 x [33] 2 x [14, 32] 4 x [4] 5 x [1] 9 x [19, 36] 1 x [17, 36] 4 x [17, 31] 1 x [13, 28] 8 x [3, 28] 5 x [20] 2 x [13, 20] 5 x [27, 35] 3 x [26, 39] 1 x [26, 35] 4 x [21, 38] 1 x [21, 35] 6 x [18, 34] 2 x [11, 34] 1 x [8, 34] 4 x [6, 25] 2 x [22, 37] 3 x [7, 37] 1 x [30] 5 x [24, 30] 2 x [10, 10] 1 x [7, 9, 14] 1 x [16, 25, 40] 1 x [2, 5, 16] 1 x [16, 35] 2 x [13, 16, 16]