Build (method = -2) #dp: 15028 Step-3' Graph: 1034 vertices and 3095 arcs (0.24s) Step-4' Graph: 632 vertices and 2291 arcs (0.25s) #V4/#V3 = 0.61 #A4/#A3 = 0.74 Ready! (0.25s) Optimize a model with 732 rows, 2292 columns and 5616 nonzeros Presolve removed 47 rows and 48 columns Presolve time: 0.02s Presolved: 685 rows, 2244 columns, 5479 nonzeros Variable types: 0 continuous, 2244 integer (28 binary) Optimize a model with 685 rows, 2244 columns and 5479 nonzeros Presolved: 685 rows, 2244 columns, 5479 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.966e+03 Factor NZ : 1.876e+04 (roughly 1 MByte of memory) Factor Ops : 6.665e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.04715305e+04 -2.87219526e+05 3.85e+05 1.90e-01 5.06e+02 0s 1 8.79737534e+03 -1.40705467e+05 6.83e+04 6.30e-03 9.78e+01 0s 2 2.88261848e+03 -4.64891944e+04 1.11e+04 9.10e-15 1.93e+01 0s 3 1.95484607e+03 -1.07074066e+04 3.07e+03 1.78e-15 4.75e+00 0s 4 1.56182534e+03 -3.46909797e+03 7.43e+02 1.78e-14 1.44e+00 0s 5 1.42940899e+03 -1.31597664e+03 2.48e+02 6.44e-15 6.78e-01 0s 6 1.38325166e+03 -9.40938001e+02 1.91e+02 5.33e-15 5.63e-01 0s 7 1.34156073e+03 -7.14449413e+02 1.52e+02 4.55e-15 4.91e-01 0s 8 1.15628778e+03 -1.13881679e+01 3.38e+01 2.44e-15 2.64e-01 0s 9 1.00185447e+03 4.40692110e+02 9.06e+00 1.11e-15 1.25e-01 0s 10 9.18654312e+02 6.00898554e+02 4.35e+00 5.55e-16 7.08e-02 0s 11 8.75455030e+02 6.68655785e+02 2.56e+00 3.33e-16 4.60e-02 0s 12 8.40644355e+02 7.30583542e+02 1.23e+00 1.48e-16 2.45e-02 0s 13 8.17748019e+02 7.68438603e+02 3.39e-01 2.22e-16 1.09e-02 0s 14 8.12243001e+02 8.04129086e+02 2.74e-02 3.33e-16 1.80e-03 0s 15 8.11147100e+02 8.10805544e+02 3.02e-03 2.80e-16 7.59e-05 0s 16 8.11000149e+02 8.10999806e+02 4.66e-12 3.64e-16 7.60e-08 0s 17 8.11000000e+02 8.11000000e+02 3.89e-11 2.55e-16 7.60e-11 0s 18 8.11000000e+02 8.11000000e+02 2.27e-13 3.33e-16 7.60e-14 0s Barrier solved model in 18 iterations and 0.05 seconds Optimal objective 8.11000000e+02 Root relaxation: objective 8.110000e+02, 977 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 811.0000000 811.00000 0.0% - 0s Explored 0 nodes (1137 simplex iterations) in 0.14 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 8.110000000000e+02, best bound 8.110000000000e+02, gap 0.0% Preprocessing time: 0.26 seconds Gurobi run time: 0.14 seconds Total run time: 0.40 seconds Objective: 811 Solution: 17 x [34, 37] 2 x [12, 38] 5 x [38, 96] 13 x [45, 71] 1 x [50, 82] 6 x [49, 76, 82] 1 x [49, 82] 17 x [89, 96] 1 x [34, 98] 1 x [61, 71, 98] 22 x [86, 98] 5 x [49, 91, 98] 25 x [3, 73] 4 x [73, 88] 17 x [19, 93] 1 x [61, 93] 1 x [41] 5 x [39, 41] 27 x [41, 74] 4 x [46] 23 x [46, 62] 1 x [3, 46] 1 x [55] 21 x [55, 100] 3 x [64] 31 x [4, 64] 4 x [18, 49] 1 x [18, 49, 61] 3 x [18, 56] 2 x [24] 13 x [15, 24] 6 x [24, 50, 51] 1 x [24, 61, 80] 2 x [25] 6 x [22, 25] 20 x [25, 48] 4 x [25, 28] 5 x [8, 99] 14 x [27, 99] 8 x [15, 99] 2 x [56, 61, 80, 99] 15 x [63] 4 x [31] 1 x [31, 42] 15 x [31, 87] 1 x [31, 86] 26 x [10, 60] 1 x [49, 60, 86] 3 x [49, 60, 61, 86] 2 x [56, 60, 61, 86] 7 x [42, 77] 15 x [53, 81] 1 x [2, 61, 81] 2 x [49, 56, 61, 80, 81] 2 x [49, 61, 81] 17 x [26, 57] 14 x [26, 90] 12 x [32] 18 x [32, 59] 2 x [20, 32, 49, 56] 8 x [72, 83] 1 x [85, 90] 4 x [17, 56, 85] 2 x [79] 2 x [67, 79] 9 x [28, 30, 50, 79] 16 x [67, 84] 8 x [52, 92] 2 x [52, 70] 16 x [40, 58] 16 x [58, 78] 3 x [58, 70] 9 x [13, 95] 7 x [7, 16] 22 x [16, 43, 51] 1 x [7, 23] 2 x [7, 17, 23] 13 x [23, 44] 9 x [11, 47] 1 x [11, 78] 13 x [29, 35] 6 x [35, 49, 78] 20 x [17, 66, 69] 3 x [6, 14] 1 x [6, 44] 2 x [5, 28, 33] 4 x [21, 33, 54] 1 x [36, 44] 3 x [21, 36, 78] 11 x [47, 65] 19 x [1, 65, 80] 10 x [28, 44, 75] 23 x [21, 75, 95] 14 x [14, 97] 5 x [9, 94] 14 x [9, 66, 76] 4 x [68, 94] 1 x [21, 40, 95] 2 x [40, 49, 95]