Build (method = -2) #dp: 5229 Step-3' Graph: 122 vertices and 398 arcs (0.02s) Step-4' Graph: 44 vertices and 242 arcs (0.02s) #V4/#V3 = 0.36 #A4/#A3 = 0.61 Ready! (0.02s) Optimize a model with 144 rows, 243 columns and 646 nonzeros Presolve removed 46 rows and 47 columns Presolve time: 0.00s Presolved: 98 rows, 196 columns, 506 nonzeros Variable types: 0 continuous, 196 integer (3 binary) Found heuristic solution: objective 490.0000000 Found heuristic solution: objective 377.0000000 Found heuristic solution: objective 275.0000000 Optimize a model with 98 rows, 196 columns and 506 nonzeros Presolved: 98 rows, 196 columns, 506 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.930e+02 Factor NZ : 1.509e+03 Factor Ops : 3.132e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.08105404e+04 -1.58352578e+04 2.57e+03 2.22e-16 2.00e+02 0s 1 2.59965286e+03 -4.47811368e+03 3.76e+02 8.88e-16 3.14e+01 0s 2 4.92193111e+02 -5.92368371e+02 1.38e+01 5.11e-15 2.83e+00 0s 3 3.31100104e+02 6.78668840e+01 1.17e-02 1.11e-15 5.86e-01 0s 4 2.59489734e+02 2.12665053e+02 6.36e-04 2.22e-16 1.04e-01 0s 5 2.50881842e+02 2.44869618e+02 3.43e-05 2.22e-16 1.34e-02 0s 6 2.50004857e+02 2.49994658e+02 2.51e-08 3.33e-16 2.27e-05 0s 7 2.50000000e+02 2.50000000e+02 3.90e-13 2.22e-16 2.33e-11 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 2.50000000e+02 Root relaxation: objective 2.500000e+02, 85 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 250.0000000 250.00000 0.0% - 0s Explored 0 nodes (85 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.500000000000e+02, best bound 2.500000000000e+02, gap 0.0% Preprocessing time: 0.03 seconds Gurobi run time: 0.01 seconds Total run time: 0.04 seconds Objective: 250 Solution: 3 x [12, 100] 5 x [21, 99] 5 x [20, 98] 4 x [7, 97] 4 x [5, 96] 7 x [10, 95] 4 x [25, 94] 6 x [26, 93] 4 x [1, 92] 2 x [27, 91] 7 x [2, 90] 3 x [31, 89] 1 x [30, 89] 1 x [32, 88] 3 x [16, 88] 3 x [6, 87] 9 x [24, 86] 5 x [18, 85] 5 x [36, 84] 1 x [35, 84] 1 x [35, 83] 6 x [29, 83] 1 x [32, 82] 5 x [23, 82] 4 x [39, 81] 2 x [37, 80] 8 x [9, 79] 7 x [40, 78] 1 x [30, 78] 7 x [33, 77] 1 x [19, 77] 5 x [17, 76] 6 x [42, 75] 1 x [19, 75] 4 x [34, 74] 3 x [41, 73] 1 x [15, 73] 5 x [8, 72] 5 x [22, 71] 1 x [9, 71] 2 x [50, 70] 1 x [50, 69] 7 x [14, 69] 5 x [52, 68] 1 x [5, 68] 2 x [53, 67] 2 x [45, 67] 2 x [54, 66] 2 x [54, 65] 5 x [53, 65] 3 x [55, 64] 2 x [56, 63] 6 x [56, 62] 1 x [59, 61] 10 x [47, 61] 7 x [58, 60] 4 x [57, 59] 1 x [55, 59] 6 x [38, 51] 1 x [7, 51] 2 x [46, 49] 1 x [9, 48] 5 x [11, 44] 1 x [24, 43] 7 x [3, 28] 8 x [4, 13]