Build (method = -2) #dp: 10790 Step-3' Graph: 1640 vertices and 4913 arcs (0.18s) Step-4' Graph: 363 vertices and 2359 arcs (0.19s) #V4/#V3 = 0.22 #A4/#A3 = 0.48 Ready! (0.19s) Optimize a model with 483 rows, 2360 columns and 6358 nonzeros Presolve removed 78 rows and 148 columns Presolve time: 0.02s Presolved: 405 rows, 2212 columns, 6013 nonzeros Variable types: 0 continuous, 2212 integer (51 binary) Found heuristic solution: objective 5667.0000000 Found heuristic solution: objective 4636.0000000 Optimize a model with 405 rows, 2212 columns and 6013 nonzeros Presolved: 405 rows, 2212 columns, 6013 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.507e+03 Factor NZ : 1.401e+04 (roughly 1 MByte of memory) Factor Ops : 7.164e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.05351445e+05 -4.38617293e+05 1.54e+06 8.79e-02 1.30e+03 0s 1 3.16691864e+04 -1.80765661e+05 2.53e+05 7.77e-16 2.29e+02 0s 2 8.69184440e+03 -5.74843733e+04 2.66e+04 1.63e-14 3.17e+01 0s 3 5.86390969e+03 -1.90011598e+04 3.92e+03 7.11e-15 7.43e+00 0s 4 5.04084490e+03 -8.54032483e+03 7.64e+02 3.44e-15 3.31e+00 0s 5 4.59817206e+03 -4.33895546e+03 3.22e+02 2.11e-15 2.09e+00 0s 6 4.32787655e+03 -9.82619595e+02 1.53e+02 9.99e-16 1.22e+00 0s 7 4.20614734e+03 1.30959022e+03 7.16e+01 6.66e-16 6.59e-01 0s 8 4.10992663e+03 2.42638145e+03 1.18e+01 4.44e-16 3.78e-01 0s 9 4.08723327e+03 3.80448794e+03 5.85e-01 5.55e-16 6.33e-02 0s 10 4.08215888e+03 4.08100097e+03 1.82e-12 4.44e-16 2.59e-04 0s 11 4.08200001e+03 4.08199999e+03 5.00e-12 3.91e-16 5.58e-09 0s 12 4.08200000e+03 4.08200000e+03 2.73e-12 4.44e-16 5.90e-15 0s Barrier solved model in 12 iterations and 0.03 seconds Optimal objective 4.08200000e+03 Root relaxation: objective 4.082000e+03, 1333 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 4082.0000000 4082.00000 0.0% - 0s Explored 0 nodes (1333 simplex iterations) in 0.10 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 4.082000000000e+03, best bound 4.082000000000e+03, gap 0.0% Preprocessing time: 0.20 seconds Gurobi run time: 0.10 seconds Total run time: 0.30 seconds Objective: 4082 Solution: 16 x [94] 78 x [55] 11 x [82] 68 x [97] 72 x [4] 62 x [111] 67 x [27] 24 x [75] 87 x [18] 83 x [84] 100 x [113] 31 x [104] 66 x [116] 61 x [56] 67 x [14] 31 x [78] 34 x [8] 51 x [21] 95 x [53] 71 x [12] 8 x [70, 76] 9 x [26, 71] 21 x [10] 67 x [1] 11 x [3] 11 x [3, 15] 20 x [3, 86] 4 x [3, 26] 27 x [102] 4 x [26, 102] 2 x [67] 10 x [15, 67] 61 x [39, 67] 21 x [31] 1 x [31, 77] 53 x [114] 52 x [32, 77] 2 x [45, 70] 62 x [23] 32 x [23, 70] 45 x [72] 11 x [5] 9 x [5, 87] 21 x [96] 54 x [15, 119] 68 x [48] 17 x [48, 49] 17 x [95] 37 x [95, 99] 21 x [15, 95] 43 x [6] 49 x [13, 81] 21 x [81, 87] 30 x [30] 39 x [30, 50] 65 x [9] 31 x [9, 13] 59 x [112] 14 x [85, 112] 42 x [120] 17 x [91, 120] 31 x [24, 120] 32 x [20] 54 x [20, 65] 48 x [101] 36 x [57, 101] 3 x [15, 101] 26 x [115] 22 x [63, 115] 7 x [46] 34 x [42] 43 x [42, 105] 25 x [40] 26 x [40, 47, 60] 32 x [98] 27 x [58] 47 x [106] 24 x [106, 108] 23 x [93] 22 x [41, 93] 19 x [35] 41 x [17, 35] 17 x [35, 74] 4 x [11] 55 x [11, 36] 30 x [11, 47] 7 x [80] 17 x [73, 80] 7 x [60, 73, 80] 39 x [49, 80] 18 x [52, 68] 7 x [2, 52] 45 x [52, 110] 29 x [37, 92] 11 x [118] 42 x [68, 118] 11 x [62] 17 x [25, 62] 30 x [61, 62] 30 x [36, 62] 12 x [62, 110] 21 x [2, 33, 34] 6 x [2, 34] 23 x [7, 79] 18 x [79, 117] 8 x [38, 79] 14 x [38, 79, 83] 17 x [109] 39 x [19, 109] 1 x [64, 109] 1 x [2, 109] 33 x [2, 69, 88] 46 x [88, 92] 13 x [90] 22 x [16, 54, 68] 37 x [16, 60, 107] 19 x [16, 92] 9 x [19, 59] 26 x [51] 44 x [22, 51] 26 x [43, 51] 3 x [26, 51] 72 x [44] 10 x [44, 54] 2 x [44, 60] 28 x [89] 43 x [89, 103] 5 x [54, 89] 11 x [38, 100, 117] 6 x [29] 17 x [59] 21 x [28, 59] 28 x [59, 66]