Build (method = -2) #dp: 1741 Step-3' Graph: 57 vertices and 606 arcs (0.01s) Step-4' Graph: 56 vertices and 604 arcs (0.01s) #V4/#V3 = 0.98 #A4/#A3 = 1.00 Ready! (0.01s) Optimize a model with 128 rows, 605 columns and 1711 nonzeros Presolve removed 50 rows and 57 columns Presolve time: 0.01s Presolved: 78 rows, 548 columns, 1544 nonzeros Variable types: 0 continuous, 548 integer (120 binary) Found heuristic solution: objective 196.0000000 Found heuristic solution: objective 170.0000000 Optimize a model with 78 rows, 548 columns and 1544 nonzeros Presolved: 78 rows, 548 columns, 1544 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 8.250e+02 Factor NZ : 1.725e+03 Factor Ops : 4.946e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.39247123e+03 -2.80015003e+03 4.51e+03 1.74e-01 2.37e+01 0s 1 4.90230427e+02 -9.37868400e+02 7.69e+02 5.55e-16 4.40e+00 0s 2 2.07209711e+02 -2.60993146e+02 5.88e+01 6.66e-16 6.04e-01 0s 3 1.60928782e+02 5.20845394e+01 3.51e+00 5.00e-16 1.03e-01 0s 4 1.44385419e+02 9.70775667e+01 6.27e-01 4.44e-16 4.31e-02 0s 5 1.37517109e+02 1.21989956e+02 1.52e-01 2.26e-16 1.41e-02 0s 6 1.35505178e+02 1.34486176e+02 3.77e-02 4.44e-16 9.59e-04 0s 7 1.35010315e+02 1.34973666e+02 9.06e-04 2.68e-16 3.40e-05 0s 8 1.35000012e+02 1.34999974e+02 6.22e-14 4.56e-16 3.40e-08 0s 9 1.35000000e+02 1.35000000e+02 3.02e-14 4.68e-16 3.40e-14 0s Barrier solved model in 9 iterations and 0.01 seconds Optimal objective 1.35000000e+02 Root relaxation: objective 1.350000e+02, 150 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 135.0000000 135.00000 0.0% - 0s Explored 0 nodes (150 simplex iterations) in 0.03 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.350000000000e+02, best bound 1.350000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.03 seconds Total run time: 0.05 seconds Objective: 135 Solution: 5 x [72] 2 x [71] 1 x [70] 3 x [69] 2 x [68] 1 x [67] 2 x [66] 3 x [65] 3 x [64] 3 x [63] 6 x [62] 1 x [61] 2 x [60] 5 x [59] 4 x [58] 2 x [57] 2 x [56] 3 x [55] 3 x [54] 2 x [1, 53] 3 x [1, 52] 5 x [2, 51] 1 x [4, 50] 2 x [6, 49] 2 x [5, 49] 7 x [48] 3 x [7, 47] 2 x [8, 46] 2 x [10, 45] 3 x [9, 44] 1 x [11, 43] 2 x [12, 42] 1 x [4, 42] 8 x [41] 3 x [13, 40] 1 x [14, 39] 3 x [15, 38] 1 x [13, 38] 2 x [16, 37] 1 x [17, 36] 1 x [16, 36] 1 x [3, 36] 1 x [35] 1 x [18, 35] 3 x [18, 34] 1 x [33] 2 x [19, 33] 1 x [3, 33] 2 x [21, 32] 1 x [20, 32] 1 x [22, 31] 1 x [22, 30] 2 x [23, 29] 3 x [26, 28] 1 x [25, 27] 3 x [23, 27] 1 x [21, 26] 1 x [24, 25]