Build (method = -2) #dp: 3548 Step-3' Graph: 114 vertices and 359 arcs (0.01s) Step-4' Graph: 29 vertices and 189 arcs (0.01s) #V4/#V3 = 0.25 #A4/#A3 = 0.53 Ready! (0.01s) Optimize a model with 110 rows, 190 columns and 517 nonzeros Presolve removed 27 rows and 28 columns Presolve time: 0.00s Presolved: 83 rows, 162 columns, 436 nonzeros Variable types: 0 continuous, 162 integer (0 binary) Found heuristic solution: objective 2.920000e+08 Optimize a model with 83 rows, 162 columns and 436 nonzeros Presolved: 83 rows, 162 columns, 436 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.430e+02 Factor NZ : 1.138e+03 Factor Ops : 2.322e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.74857730e+08 -9.15804502e+09 9.09e+09 2.22e-16 1.45e+08 0s 1 3.36053349e+08 -2.82305159e+09 1.75e+09 6.66e-16 2.85e+07 0s 2 2.92549297e+08 -4.54598842e+08 2.49e+07 5.55e-16 2.19e+06 0s 3 2.91590394e+08 -6.11998563e+07 5.57e+05 3.89e-16 9.31e+05 0s 4 2.87342177e+08 1.88765278e+08 5.24e+02 3.33e-16 2.59e+05 0s 5 2.57481421e+08 2.39001039e+08 4.44e+00 3.12e-16 4.86e+04 0s 6 2.50010649e+08 2.49854191e+08 8.85e-07 2.93e-16 4.12e+02 0s 7 2.50000000e+08 2.49999999e+08 8.94e-08 2.55e-10 2.03e-03 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 2.50000000e+08 Warning: Markowitz tolerance tightened to 0.5 Root relaxation: objective 2.500000e+08, 159 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 2.500000e+08 2.5000e+08 0.0% - 0s Explored 0 nodes (159 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+08, best bound 2.500000000000e+08, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.01 seconds Total run time: 0.03 seconds Objective: 250000000 Solution: 6000000 x [23, 81] 1000000 x [26, 80] 7000000 x [21, 80] 4000000 x [25, 79] 10000000 x [29, 78] 1000000 x [22, 77] 7000000 x [20, 77] 8000000 x [31, 76] 1000000 x [15, 76] 9000000 x [12, 75] 1000000 x [3, 75] 4000000 x [22, 74] 3000000 x [32, 73] 2000000 x [40, 72] 8000000 x [40, 71] 7000000 x [14, 70] 1000000 x [3, 70] 4000000 x [15, 69] 5000000 x [34, 68] 2000000 x [24, 67] 4000000 x [45, 66] 5000000 x [47, 65] 3000000 x [19, 64] 5000000 x [28, 63] 6000000 x [38, 62] 1000000 x [1, 62] 1000000 x [51, 61] 7000000 x [46, 61] 6000000 x [52, 60] 5000000 x [51, 59] 4000000 x [54, 58] 8000000 x [53, 58] 1000000 x [55, 57] 2000000 x [3, 57] 6000000 x [55, 56] 3000000 x [54, 55] 1000000 x [52, 55] 2000000 x [13, 50] 4000000 x [7, 49] 7000000 x [44, 48] 6000000 x [41, 43] 1000000 x [1, 43] 5000000 x [37, 42] 1000000 x [1, 42] 7000000 x [18, 39] 1000000 x [3, 39] 10000000 x [33, 36] 1000000 x [13, 36] 6000000 x [8, 35] 8000000 x [4, 30] 9000000 x [11, 27] 4000000 x [10, 26] 7000000 x [5, 17] 6000000 x [6, 16] 6000000 x [2, 9]