Build (method = -2) #dp: 4068 Step-3' Graph: 84 vertices and 934 arcs (0.02s) Step-4' Graph: 60 vertices and 886 arcs (0.02s) #V4/#V3 = 0.71 #A4/#A3 = 0.95 Ready! (0.02s) Optimize a model with 135 rows, 887 columns and 2546 nonzeros Presolve removed 43 rows and 58 columns Presolve time: 0.01s Presolved: 92 rows, 829 columns, 2380 nonzeros Variable types: 0 continuous, 829 integer (172 binary) Found heuristic solution: objective 185.0000000 Found heuristic solution: objective 159.0000000 Optimize a model with 92 rows, 829 columns and 2380 nonzeros Presolved: 92 rows, 829 columns, 2380 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.295e+03 Factor NZ : 2.521e+03 Factor Ops : 8.869e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.76935169e+03 -9.30149305e+03 2.07e+04 2.69e-01 6.85e+01 0s 1 9.81150317e+02 -2.94892543e+03 3.55e+03 8.88e-16 1.21e+01 0s 2 2.37550112e+02 -1.11280998e+03 1.97e+02 1.44e-15 1.27e+00 0s 3 1.73907122e+02 -1.56288986e+02 1.82e+01 5.55e-16 2.21e-01 0s 4 1.42801542e+02 1.54101755e+01 4.95e+00 7.63e-16 7.99e-02 0s 5 1.24849392e+02 5.18741195e+01 1.84e+00 5.62e-16 4.45e-02 0s 6 1.14589151e+02 7.94306193e+01 5.08e-01 2.84e-16 2.11e-02 0s 7 1.10142625e+02 9.20784921e+01 2.21e-01 2.22e-16 1.08e-02 0s 8 1.07949693e+02 1.06288499e+02 2.82e-02 3.33e-16 9.94e-04 0s 9 1.07151278e+02 1.06798873e+02 4.86e-03 3.33e-16 2.11e-04 0s 10 1.07000628e+02 1.06999375e+02 5.33e-13 4.44e-16 7.43e-07 0s 11 1.07000001e+02 1.06999999e+02 5.80e-13 2.50e-16 7.43e-10 0s 12 1.07000000e+02 1.07000000e+02 2.20e-13 5.55e-16 7.43e-13 0s Barrier solved model in 12 iterations and 0.01 seconds Optimal objective 1.07000000e+02 Root relaxation: objective 1.070000e+02, 245 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 107.0000000 107.00000 0.0% - 0s Explored 0 nodes (284 simplex iterations) in 0.05 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.070000000000e+02, best bound 1.070000000000e+02, gap 0.0% Preprocessing time: 0.03 seconds Gurobi run time: 0.05 seconds Total run time: 0.07 seconds Objective: 107 Solution: 1 x [75] 2 x [1, 75] 1 x [3, 74] 1 x [3, 73] 5 x [72] 3 x [5, 71] 1 x [7, 70] 2 x [4, 70] 5 x [69] 4 x [68] 2 x [10, 67] 1 x [8, 67] 1 x [11, 66] 1 x [6, 66] 1 x [12, 65] 2 x [9, 65] 2 x [13, 64] 1 x [2, 64] 1 x [14, 63] 1 x [14, 62] 2 x [16, 61] 1 x [14, 61] 1 x [17, 60] 4 x [15, 60] 5 x [18, 59] 1 x [17, 59] 3 x [19, 58] 2 x [19, 57] 1 x [17, 57] 1 x [20, 56] 1 x [22, 55] 3 x [22, 54] 1 x [24, 53] 1 x [17, 53] 1 x [23, 52] 1 x [20, 52] 1 x [25, 51] 1 x [24, 51] 4 x [21, 51] 2 x [25, 50] 1 x [26, 49] 3 x [26, 48] 2 x [28, 47] 2 x [27, 47] 1 x [28, 46] 4 x [29, 45] 1 x [28, 45] 1 x [30, 44] 1 x [32, 43] 1 x [31, 43] 2 x [33, 42] 1 x [32, 42] 1 x [34, 41] 1 x [33, 41] 1 x [35, 40] 2 x [37, 39] 2 x [38, 38] 1 x [27, 37] 2 x [35, 36] 1 x [30, 30] 1 x [14, 17, 27]