Build (method = -2) #dp: 1049 Step-3' Graph: 227 vertices and 674 arcs (0.01s) Step-4' Graph: 55 vertices and 330 arcs (0.01s) #V4/#V3 = 0.24 #A4/#A3 = 0.49 Ready! (0.01s) Optimize a model with 175 rows, 331 columns and 887 nonzeros Presolve removed 124 rows and 124 columns Presolve time: 0.00s Presolved: 51 rows, 207 columns, 552 nonzeros Variable types: 0 continuous, 207 integer (151 binary) Found heuristic solution: objective 109.0000000 Optimize a model with 51 rows, 207 columns and 552 nonzeros Presolved: 51 rows, 207 columns, 552 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.940e+02 Factor NZ : 7.920e+02 Factor Ops : 1.423e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.44226128e+02 -2.22042804e+02 3.76e+02 2.68e-01 5.11e+00 0s 1 1.31231744e+02 -1.74423566e+01 6.82e+01 4.44e-16 1.02e+00 0s 2 1.12831713e+02 7.52696096e+01 6.66e+00 4.44e-16 1.41e-01 0s 3 1.09407560e+02 1.02194833e+02 2.52e-01 6.66e-16 1.83e-02 0s 4 1.07187861e+02 1.04999056e+02 7.13e-03 4.44e-16 5.30e-03 0s 5 1.06540958e+02 1.05737977e+02 2.25e-03 2.22e-16 1.94e-03 0s 6 1.06357766e+02 1.05894740e+02 1.04e-03 2.22e-16 1.12e-03 0s 7 1.06274720e+02 1.06079491e+02 5.79e-04 2.22e-16 4.73e-04 0s 8 1.06220790e+02 1.06129182e+02 3.44e-04 2.22e-16 2.22e-04 0s 9 1.06193499e+02 1.06141320e+02 2.04e-04 2.22e-16 1.26e-04 0s 10 1.06173928e+02 1.06161650e+02 5.59e-05 2.22e-16 2.97e-05 0s 11 1.06166698e+02 1.06166593e+02 2.07e-11 3.33e-16 2.54e-07 0s 12 1.06166667e+02 1.06166667e+02 4.03e-13 2.22e-16 2.54e-10 0s 13 1.06166667e+02 1.06166667e+02 3.52e-13 2.22e-16 2.73e-16 0s Barrier solved model in 13 iterations and 0.00 seconds Optimal objective 1.06166667e+02 Root relaxation: objective 1.061667e+02, 66 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 106.16667 0 10 109.00000 106.16667 2.60% - 0s H 0 0 107.0000000 106.16667 0.78% - 0s Explored 0 nodes (94 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.070000000000e+02, best bound 1.070000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.01 seconds Total run time: 0.03 seconds Objective: 107 Solution: 1 x [116] 1 x [39] 1 x [111] 1 x [47] 1 x [52] 1 x [103] 1 x [1] 1 x [28] 1 x [67] 1 x [37] 1 x [77] 1 x [36] 1 x [63] 1 x [16] 1 x [104] 1 x [14] 1 x [117] 1 x [84] 1 x [25] 1 x [6] 1 x [26] 1 x [53] 1 x [65] 1 x [69] 1 x [99] 1 x [102] 1 x [55] 1 x [80] 1 x [5] 1 x [106] 1 x [31] 1 x [70] 1 x [115] 1 x [13] 1 x [23] 1 x [110] 1 x [45, 92] 1 x [32] 1 x [8, 81] 1 x [74] 1 x [87] 1 x [108] 1 x [83, 91] 1 x [41, 54, 96] 1 x [79] 1 x [100] 1 x [30] 1 x [76] 1 x [94] 1 x [4] 1 x [90] 1 x [11] 1 x [73] 1 x [46] 1 x [12] 1 x [56] 1 x [107] 1 x [3, 44, 89] 1 x [34, 57, 88] 1 x [71] 1 x [58] 1 x [60] 1 x [75] 1 x [85] 1 x [86] 1 x [35] 1 x [50, 93] 1 x [9] 1 x [43] 1 x [112] 1 x [118] 1 x [27] 1 x [59] 1 x [82] 1 x [98] 1 x [18] 1 x [19] 1 x [114] 1 x [21] 1 x [113] 1 x [72] 1 x [33, 48, 120] 1 x [20] 1 x [68] 1 x [10] 1 x [62] 1 x [17] 1 x [2, 95] 1 x [15] 1 x [61] 1 x [109] 1 x [29] 1 x [51] 1 x [66] 1 x [64] 1 x [97] 1 x [38] 1 x [101] 1 x [119] 1 x [42] 1 x [24] 1 x [7] 1 x [49] 1 x [22] 1 x [105] 1 x [40] 1 x [78]