Build (method = -2) #dp: 16879 Step-3' Graph: 2442 vertices and 7319 arcs (0.28s) Step-4' Graph: 483 vertices and 3401 arcs (0.29s) #V4/#V3 = 0.20 #A4/#A3 = 0.46 Ready! (0.29s) Optimize a model with 603 rows, 3402 columns and 9244 nonzeros Presolve removed 86 rows and 209 columns Presolve time: 0.02s Presolved: 517 rows, 3193 columns, 8799 nonzeros Variable types: 0 continuous, 3193 integer (0 binary) Found heuristic solution: objective 4252.0000000 Optimize a model with 517 rows, 3193 columns and 8799 nonzeros Presolved: 517 rows, 3193 columns, 8799 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 5.005e+03 Factor NZ : 2.050e+04 (roughly 2 MBytes of memory) Factor Ops : 1.361e+06 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.03909361e+05 -9.33296353e+05 4.40e+06 2.22e-16 2.42e+03 0s 1 5.84621932e+04 -3.56238124e+05 7.42e+05 1.33e-15 4.24e+02 0s 2 1.30280865e+04 -1.28488990e+05 9.92e+04 1.39e-14 6.66e+01 0s 3 6.30345069e+03 -4.74733899e+04 1.27e+04 7.11e-15 1.29e+01 0s 4 5.13543248e+03 -2.09417729e+04 3.68e+03 3.22e-15 5.09e+00 0s 5 4.39039446e+03 -1.18888535e+04 1.06e+03 1.67e-15 2.76e+00 0s 6 3.86378028e+03 -6.08546321e+03 5.39e+02 1.44e-15 1.64e+00 0s 7 3.56356094e+03 -2.68282601e+03 3.11e+02 6.25e-16 1.01e+00 0s 8 3.24373473e+03 -8.96320502e+02 7.11e+01 8.88e-16 6.51e-01 0s 9 3.13302608e+03 1.51380174e+03 2.77e+01 7.58e-16 2.54e-01 0s 10 3.08161296e+03 2.18811370e+03 1.59e+01 7.03e-16 1.40e-01 0s 11 3.06128939e+03 2.90512122e+03 8.42e+00 1.11e-15 2.48e-02 0s 12 3.04080520e+03 3.02365799e+03 1.45e+00 1.32e-15 2.75e-03 0s 13 3.03706786e+03 3.03667889e+03 1.89e-02 1.32e-15 6.15e-05 0s 14 3.03700007e+03 3.03699968e+03 1.82e-12 1.19e-15 6.15e-08 0s 15 3.03700000e+03 3.03700000e+03 4.28e-12 1.14e-15 6.15e-11 0s Barrier solved model in 15 iterations and 0.05 seconds Optimal objective 3.03700000e+03 Root relaxation: objective 3.037000e+03, 2163 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3037.0000000 3037.00000 0.0% - 0s Explored 0 nodes (2163 simplex iterations) in 0.12 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 3.037000000000e+03, best bound 3.037000000000e+03, gap 0.0% Preprocessing time: 0.31 seconds Gurobi run time: 0.12 seconds Total run time: 0.43 seconds Objective: 3037 Solution: 27 x [86, 111] 6 x [70, 84] 3 x [21, 70] 14 x [21, 26, 70] 18 x [26, 70, 113] 8 x [14, 70] 39 x [15, 53] 71 x [4, 108] 24 x [18, 70] 55 x [18, 39] 17 x [18, 26, 77] 10 x [8] 15 x [27] 63 x [104] 52 x [82] 3 x [13, 82] 15 x [82, 87] 2 x [82, 108] 33 x [13, 56] 37 x [94] 12 x [85, 94] 22 x [94, 99] 34 x [116] 7 x [13, 116] 11 x [57, 116] 3 x [15, 116] 17 x [50, 116] 27 x [97] 23 x [24, 65, 97] 9 x [13, 57, 78] 24 x [55] 38 x [49, 55] 26 x [55, 105] 8 x [24, 75] 23 x [24, 74, 75] 51 x [12] 15 x [12, 36] 10 x [12, 86, 91] 10 x [12, 13] 15 x [71, 73, 105] 32 x [71, 74, 91] 19 x [3] 10 x [64, 102] 22 x [41, 102] 8 x [31] 5 x [17, 32] 3 x [32, 47] 17 x [66, 76] 54 x [28, 76] 23 x [61, 76] 2 x [114] 56 x [41, 114] 2 x [1] 40 x [1, 73] 20 x [1, 41] 22 x [10] 20 x [10, 19] 43 x [10, 61] 2 x [10, 63] 15 x [67] 26 x [64, 67] 24 x [45] 13 x [45, 61] 15 x [64, 96] 28 x [23, 47] 5 x [23, 57] 19 x [72] 53 x [33, 72] 17 x [58] 51 x [58, 100] 14 x [5, 49] 18 x [115] 57 x [36, 115] 13 x [112] 52 x [54, 57, 112] 15 x [6] 17 x [6, 43] 4 x [119] 10 x [47, 119] 1 x [57, 119] 13 x [120] 27 x [69, 120] 25 x [46, 83] 41 x [30, 69] 11 x [48, 64] 32 x [48, 105] 22 x [106] 32 x [25, 106] 22 x [68, 106] 5 x [40] 51 x [40, 83] 15 x [9] 36 x [9, 74, 103] 21 x [9, 54] 15 x [64, 101] 46 x [100, 101] 6 x [52] 32 x [7, 52] 13 x [52, 59] 1 x [52, 59, 92] 5 x [52, 83] 7 x [52, 83, 86] 1 x [47, 52] 5 x [22, 81] 47 x [47, 81] 5 x [20] 23 x [20, 28] 5 x [95] 25 x [92, 95, 103] 27 x [42] 17 x [37] 3 x [37, 60] 5 x [118] 6 x [59, 118] 16 x [93] 18 x [69, 93, 110] 20 x [43, 93] 2 x [34] 27 x [16, 34] 7 x [34, 59] 4 x [33, 34] 1 x [34, 92] 24 x [98] 5 x [98, 117] 19 x [38, 98] 23 x [35] 39 x [35, 38] 5 x [11] 34 x [11, 66] 8 x [11, 25] 13 x [11, 25, 65] 29 x [2, 11, 110] 3 x [80] 67 x [17, 80] 2 x [80, 110] 15 x [90, 109] 7 x [44, 89, 109] 5 x [62] 15 x [62, 79] 10 x [62, 83] 13 x [62, 107] 22 x [43, 62, 65] 16 x [59, 88, 90] 47 x [60, 88, 90] 16 x [51, 88] 29 x [7, 51, 60] 59 x [29, 44, 89] 6 x [17, 89]