Build (method = -2) #dp: 1117 Step-3' Graph: 217 vertices and 644 arcs (0.01s) Step-4' Graph: 37 vertices and 284 arcs (0.01s) #V4/#V3 = 0.17 #A4/#A3 = 0.44 Ready! (0.01s) Optimize a model with 157 rows, 285 columns and 785 nonzeros Presolve removed 100 rows and 107 columns Presolve time: 0.00s Presolved: 57 rows, 178 columns, 473 nonzeros Variable types: 0 continuous, 178 integer (0 binary) Found heuristic solution: objective 6131.0000000 Found heuristic solution: objective 5944.0000000 Optimize a model with 57 rows, 178 columns and 473 nonzeros Presolved: 57 rows, 178 columns, 473 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.650e+02 Factor NZ : 8.550e+02 Factor Ops : 1.450e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.28994439e+04 -6.53817485e+03 1.71e+04 1.11e-16 2.19e+02 0s 1 7.35168114e+03 5.89110537e+02 1.98e+03 2.55e-15 3.43e+01 0s 2 6.10690742e+03 3.86383211e+03 1.78e+02 4.44e-15 6.95e+00 0s 3 5.92082421e+03 5.31702976e+03 2.59e+01 1.47e-15 1.67e+00 0s 4 5.90113218e+03 5.82856367e+03 1.79e+00 1.22e-15 1.95e-01 0s 5 5.89802645e+03 5.89725801e+03 1.16e-02 1.06e-15 2.05e-03 0s 6 5.89800000e+03 5.89800000e+03 1.76e-08 1.38e-15 3.02e-09 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 5.89800000e+03 Root relaxation: objective 5.898000e+03, 114 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 5898.0000000 5898.00000 0.0% - 0s Explored 0 nodes (114 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 5.898000000000e+03, best bound 5.898000000000e+03, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.01 seconds Total run time: 0.03 seconds Objective: 5898 Solution: 39 x [4] 84 x [31] 94 x [25] 14 x [115] 6 x [100] 46 x [22] 58 x [34] 52 x [1] 68 x [7] 85 x [49] 74 x [106] 75 x [88] 20 x [58] 91 x [103] 82 x [40] 98 x [112] 26 x [70] 48 x [109] 1 x [28] 76 x [64] 76 x [85] 94 x [37] 42 x [55] 6 x [97] 52 x [76] 75 x [79] 26 x [73] 71 x [73, 118] 87 x [43] 51 x [63] 21 x [82] 13 x [84] 5 x [96] 57 x [91] 86 x [94] 99 x [78] 78 x [61] 92 x [67] 51 x [45] 79 x [81] 88 x [12] 87 x [30] 69 x [39] 7 x [54] 48 x [57] 98 x [66] 63 x [114] 52 x [53] 7 x [99] 1 x [60] 99 x [75] 70 x [105] 35 x [46] 37 x [33, 46] 11 x [46, 93] 35 x [111] 50 x [48] 1 x [92] 36 x [42] 42 x [3] 6 x [21] 61 x [51] 23 x [69] 66 x [69, 108] 47 x [9] 22 x [52] 7 x [13, 52] 62 x [8] 79 x [20] 32 x [44] 41 x [47] 64 x [68] 47 x [110] 79 x [11] 89 x [36] 26 x [41] 83 x [80] 56 x [15] 67 x [18] 74 x [107] 12 x [56] 25 x [74] 84 x [95] 27 x [19] 21 x [19, 72] 27 x [19, 108] 52 x [38] 100 x [65] 34 x [71] 52 x [102] 84 x [117] 69 x [35] 7 x [59] 31 x [83] 81 x [120] 27 x [6] 78 x [23] 40 x [32] 23 x [2] 64 x [26] 3 x [116] 42 x [5] 47 x [29] 35 x [113] 7 x [119] 67 x [62] 14 x [16, 62] 13 x [86] 60 x [50] 14 x [50, 89] 37 x [10, 98] 16 x [10, 87] 38 x [98] 21 x [77, 90] 1 x [89, 90] 81 x [24] 23 x [104] 26 x [87] 12 x [77, 87] 48 x [101] 38 x [14, 101] 1 x [89, 101] 16 x [17] 35 x [27]