Build (method = -2) #dp: 5180 Step-3' Graph: 102 vertices and 348 arcs (0.02s) Step-4' Graph: 53 vertices and 250 arcs (0.02s) #V4/#V3 = 0.52 #A4/#A3 = 0.72 Ready! (0.02s) Optimize a model with 153 rows, 251 columns and 652 nonzeros Presolve removed 53 rows and 54 columns Presolve time: 0.00s Presolved: 100 rows, 197 columns, 492 nonzeros Variable types: 0 continuous, 197 integer (0 binary) Found heuristic solution: objective 494.0000000 Found heuristic solution: objective 266.0000000 Optimize a model with 100 rows, 197 columns and 492 nonzeros Presolved: 100 rows, 197 columns, 492 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.970e+02 Factor NZ : 1.551e+03 Factor Ops : 3.176e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.22012402e+04 -1.62835232e+04 9.41e+03 2.22e-16 1.92e+02 0s 1 2.78694422e+03 -4.50841380e+03 1.22e+03 6.66e-16 2.84e+01 0s 2 4.81425304e+02 -3.89787627e+02 8.99e+00 2.04e-14 2.02e+00 0s 3 3.63804936e+02 1.18823647e+02 3.66e-02 5.77e-15 5.52e-01 0s 4 2.65776425e+02 2.31691880e+02 1.99e-13 4.44e-16 7.68e-02 0s 5 2.55980643e+02 2.48440744e+02 2.27e-13 3.05e-16 1.70e-02 0s 6 2.53719846e+02 2.52921378e+02 1.71e-13 2.68e-16 1.80e-03 0s 7 2.53500437e+02 2.53499437e+02 4.84e-13 2.22e-16 2.25e-06 0s 8 2.53500000e+02 2.53499999e+02 3.80e-12 2.74e-16 2.25e-09 0s 9 2.53500000e+02 2.53500000e+02 2.67e-13 3.33e-16 2.25e-12 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 2.53500000e+02 Root relaxation: objective 2.535000e+02, 72 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 253.50000 0 2 266.00000 253.50000 4.70% - 0s H 0 0 254.0000000 253.50000 0.20% - 0s Explored 0 nodes (72 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.540000000000e+02, best bound 2.540000000000e+02, gap 0.0% Preprocessing time: 0.03 seconds Gurobi run time: 0.01 seconds Total run time: 0.04 seconds Objective: 254 Solution: 1 x [100] 4 x [1, 99] 2 x [98] 2 x [1, 98] 2 x [3, 97] 5 x [2, 97] 6 x [4, 96] 1 x [3, 96] 4 x [95] 1 x [5, 95] 2 x [6, 94] 2 x [5, 94] 3 x [7, 93] 3 x [8, 92] 4 x [9, 91] 3 x [7, 90] 3 x [11, 89] 2 x [10, 89] 3 x [12, 88] 1 x [9, 88] 6 x [11, 87] 6 x [10, 86] 3 x [14, 85] 2 x [16, 84] 6 x [17, 83] 4 x [18, 82] 4 x [19, 81] 5 x [20, 80] 3 x [21, 79] 6 x [22, 78] 3 x [19, 77] 5 x [23, 76] 6 x [24, 75] 4 x [25, 74] 7 x [26, 73] 4 x [28, 72] 5 x [29, 71] 8 x [27, 70] 1 x [20, 70] 4 x [30, 69] 1 x [24, 68] 1 x [19, 68] 5 x [33, 67] 3 x [31, 66] 3 x [28, 65] 4 x [34, 64] 6 x [36, 63] 7 x [37, 62] 3 x [39, 61] 6 x [38, 60] 1 x [39, 59] 1 x [37, 59] 1 x [18, 59] 6 x [42, 58] 5 x [41, 57] 5 x [32, 56] 1 x [44, 55] 1 x [17, 55] 7 x [43, 54] 5 x [46, 53] 1 x [52] 1 x [48, 52] 1 x [14, 52] 4 x [45, 51] 5 x [48, 50] 1 x [46, 49] 1 x [21, 49] 1 x [13, 49] 3 x [44, 47] 4 x [40, 42] 6 x [31, 35] 8 x [13, 15]