Build (method = -2) #dp: 2234 Step-3' Graph: 440 vertices and 1313 arcs (0.03s) Step-4' Graph: 114 vertices and 661 arcs (0.04s) #V4/#V3 = 0.26 #A4/#A3 = 0.50 Ready! (0.04s) Optimize a model with 234 rows, 662 columns and 1762 nonzeros Presolve removed 121 rows and 126 columns Presolve time: 0.01s Presolved: 113 rows, 536 columns, 1455 nonzeros Variable types: 0 continuous, 536 integer (413 binary) Found heuristic solution: objective 104.0000000 Optimize a model with 113 rows, 536 columns and 1455 nonzeros Presolved: 113 rows, 536 columns, 1455 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 7.750e+02 Factor NZ : 2.372e+03 Factor Ops : 5.767e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 7.65520719e+02 -9.60901036e+02 2.67e+03 2.80e-01 1.02e+01 0s 1 2.70679015e+02 -3.63095829e+02 4.62e+02 5.00e-16 1.96e+00 0s 2 1.31721889e+02 -2.10639046e+01 6.73e+01 6.66e-16 3.08e-01 0s 3 1.04300969e+02 6.55652417e+01 9.67e+00 1.33e-15 5.57e-02 0s 4 9.95048145e+01 8.97356039e+01 1.67e+00 6.66e-16 1.09e-02 0s 5 9.84595211e+01 9.28899909e+01 9.14e-01 8.88e-16 6.03e-03 0s 6 9.76253523e+01 9.36787767e+01 5.41e-01 8.88e-16 4.17e-03 0s 7 9.71588751e+01 9.57008142e+01 2.28e-01 2.22e-16 1.55e-03 0s 8 9.70139902e+01 9.69769829e+01 4.06e-03 2.23e-16 3.79e-05 0s 9 9.70000013e+01 9.69999956e+01 4.29e-07 4.44e-16 5.68e-09 0s 10 9.70000000e+01 9.70000000e+01 1.84e-14 4.44e-16 5.67e-12 0s Barrier solved model in 10 iterations and 0.01 seconds Optimal objective 9.70000000e+01 Root relaxation: objective 9.700000e+01, 277 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 97.0000000 97.00000 0.0% - 0s Explored 0 nodes (277 simplex iterations) in 0.02 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 9.700000000000e+01, best bound 9.700000000000e+01, gap 0.0% Preprocessing time: 0.04 seconds Gurobi run time: 0.02 seconds Total run time: 0.07 seconds Objective: 97 Solution: 1 x [73] 1 x [76] 1 x [112] 1 x [79] 1 x [46] 1 x [70] 1 x [58] 1 x [103] 1 x [22, 118] 1 x [88] 1 x [7] 1 x [43] 1 x [34] 1 x [91] 1 x [40] 1 x [94] 1 x [82] 1 x [13] 1 x [61] 1 x [85] 1 x [99] 1 x [3] 1 x [55] 1 x [106] 1 x [100] 1 x [27] 1 x [97] 1 x [1] 1 x [4] 1 x [31] 1 x [63] 1 x [15] 1 x [64] 1 x [66] 1 x [21] 1 x [45] 1 x [107] 1 x [38] 1 x [90] 1 x [42] 1 x [111] 1 x [93] 1 x [65] 1 x [28, 33] 1 x [29] 1 x [105] 1 x [12] 1 x [54] 1 x [41] 1 x [117] 1 x [8] 1 x [92] 1 x [50] 1 x [56] 1 x [48] 1 x [32] 1 x [72] 1 x [52, 53, 60] 1 x [26] 1 x [24] 1 x [2] 1 x [114] 1 x [35] 1 x [68] 1 x [86] 1 x [14] 1 x [102] 1 x [78] 1 x [17] 1 x [98] 1 x [116] 1 x [120] 1 x [44] 1 x [101] 1 x [67, 109] 1 x [11] 1 x [89] 1 x [119] 1 x [5] 1 x [20] 1 x [23] 1 x [59] 1 x [104] 1 x [87] 1 x [39, 84] 1 x [30, 49, 113] 1 x [25, 80] 1 x [6, 108] 1 x [10, 47, 83] 1 x [19, 95, 110] 1 x [62, 69, 115] 1 x [51, 96] 1 x [36, 37, 74] 1 x [57] 1 x [75, 81] 1 x [16, 71] 1 x [9, 18, 77]