Build (method = -2) #dp: 7071 Step-3' Graph: 120 vertices and 1651 arcs (0.03s) Step-4' Graph: 85 vertices and 1581 arcs (0.03s) #V4/#V3 = 0.71 #A4/#A3 = 0.96 Ready! (0.03s) Optimize a model with 166 rows, 1582 columns and 4582 nonzeros Presolve removed 27 rows and 45 columns Presolve time: 0.02s Presolved: 139 rows, 1537 columns, 4467 nonzeros Variable types: 0 continuous, 1537 integer (0 binary) Found heuristic solution: objective 8.130000e+08 Optimize a model with 139 rows, 1537 columns and 4467 nonzeros Presolved: 139 rows, 1537 columns, 4467 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.004e+03 Factor NZ : 5.481e+03 Factor Ops : 2.892e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 8.66157870e+08 -1.21483959e+11 1.66e+11 2.22e-16 2.89e+08 0s 1 9.06606869e+08 -6.32550834e+10 3.33e+10 2.90e-01 6.97e+07 0s 2 8.32321948e+08 -1.54243734e+10 7.18e+09 1.55e-02 1.48e+07 0s 3 8.12901651e+08 -4.70618676e+09 3.64e+08 2.89e-15 2.11e+06 0s 4 7.39974858e+08 -2.47244912e+09 3.46e+05 1.44e-15 1.03e+06 0s 5 6.88677181e+08 -1.49519271e+09 2.69e+05 9.71e-16 6.98e+05 0s 6 5.75094649e+08 -3.93195013e+08 1.55e+05 5.00e-16 3.09e+05 0s 7 5.01727191e+08 -3.84062778e+07 7.81e+04 4.53e-16 1.73e+05 0s 8 4.57679041e+08 1.33722437e+08 4.11e+04 3.90e-16 1.04e+05 0s 9 4.19030146e+08 2.70640407e+08 1.37e+04 4.23e-16 4.74e+04 0s 10 4.07647409e+08 3.11497799e+08 3.25e+03 3.28e-16 3.07e+04 0s 11 4.02140452e+08 3.75951479e+08 4.21e+02 3.13e-16 8.37e+03 0s 12 3.99370556e+08 3.90162371e+08 4.56e+01 3.70e-16 2.94e+03 0s 13 3.98847049e+08 3.95428293e+08 1.86e+01 3.83e-16 1.09e+03 0s 14 3.98542874e+08 3.97978337e+08 3.38e+00 1.02e-07 1.80e+02 0s 15 3.98434399e+08 3.98430172e+08 9.27e-03 9.82e-08 1.35e+00 0s 16 3.98433334e+08 3.98433330e+08 2.98e-07 1.06e-09 1.35e-03 0s 17 3.98433333e+08 3.98433333e+08 4.17e-07 1.20e-12 1.60e-09 0s Barrier solved model in 17 iterations and 0.02 seconds Optimal objective 3.98433333e+08 Warning: Markowitz tolerance tightened to 0.5 Root relaxation: objective 3.984333e+08, 655 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.9843e+08 0 3 8.1300e+08 3.9843e+08 51.0% - 0s H 0 0 3.984333e+08 3.9843e+08 0.00% - 0s Explored 0 nodes (847 simplex iterations) in 0.10 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 3.984333340000e+08, best bound 3.984333333333e+08, gap 0.0000% Preprocessing time: 0.04 seconds Gurobi run time: 0.10 seconds Total run time: 0.14 seconds Objective: 398433334 Solution: 8000000 x [31, 81] 8000000 x [32, 80] 600000 x [3, 10, 80] 5400000 x [4, 9, 80] 14000000 x [33, 79] 4000000 x [1, 14, 78] 9720000 x [35, 77] 7280000 x [6, 10, 77] 6700000 x [4, 13, 76] 1860000 x [5, 12, 76] 1440000 x [7, 10, 76] 6100000 x [37, 75] 4100000 x [1, 17, 75] 2800000 x [9, 9, 75] 8340000 x [38, 74] 2660000 x [3, 16, 74] 4000000 x [5, 14, 74] 5480000 x [2, 18, 73] 3520000 x [3, 17, 73] 8440000 x [40, 72] 3560000 x [6, 15, 72] 14000000 x [41, 71] 1000000 x [2, 20, 71] 3560000 x [1, 22, 70] 6440000 x [8, 15, 70] 5440000 x [43, 69] 4560000 x [8, 16, 69] 1340000 x [44, 68] 4340000 x [1, 24, 68] 4000000 x [2, 23, 68] 380000 x [4, 21, 68] 4940000 x [6, 19, 68] 12000000 x [45, 67] 6480000 x [46, 66] 4520000 x [2, 25, 66] 9000000 x [47, 65] 17000000 x [48, 64] 9000000 x [49, 63] 4220000 x [3, 27, 63] 480000 x [6, 24, 63] 2300000 x [13, 17, 63] 9340000 x [50, 62] 3660000 x [5, 26, 62] 10000000 x [51, 61] 12000000 x [52, 60] 10440000 x [53, 59] 520000 x [5, 29, 59] 3040000 x [10, 24, 59] 13000000 x [54, 58] 2960000 x [5, 30, 58] 3880000 x [6, 29, 58] 2160000 x [17, 18, 58] 3660000 x [55, 57] 3340000 x [11, 25, 57] 1640000 x [10, 27, 56] 8140000 x [12, 25, 56] 1220000 x [18, 19, 56] 3780000 x [16, 22, 55] 6920000 x [17, 21, 55] 3640000 x [19, 19, 55] 1560000 x [20, 20, 53] 1000000 x [18, 23, 52] 4000000 x [12, 30, 51] 4000000 x [7, 36, 50] 2660000 x [21, 22, 50] 2000000 x [9, 36, 48] 3560000 x [7, 39, 47] 2440000 x [20, 26, 47] 3520000 x [4, 43, 46] 860000 x [6, 42, 45] 4140000 x [18, 30, 45] 6660000 x [11, 38, 44] 4040000 x [21, 29, 43] 4000000 x [23, 28, 42] 6140000 x [24, 27, 42] 2560000 x [19, 34, 40] 3440000 x [20, 34, 39] 1900000 x [26, 30, 37] 2280000 x [29, 29, 35] 3000000 x [29, 31, 33] 1 x [31] 333333 x [31, 31, 31]