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 3.655000e+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 4.08162652e+08 -9.44635420e+09 9.05e+09 2.22e-16 1.45e+08 0s 1 4.00514217e+08 -3.00825374e+09 1.39e+09 6.66e-16 2.49e+07 0s 2 3.65339681e+08 -4.42628620e+08 3.53e+06 1.11e-15 2.15e+06 0s 3 3.18407407e+08 3.47801466e+07 7.18e+03 8.88e-16 7.46e+05 0s 4 2.58046869e+08 2.07450159e+08 5.30e+02 5.00e-16 1.33e+05 0s 5 2.50487911e+08 2.48694092e+08 2.77e+01 3.64e-16 4.72e+03 0s 6 2.50000009e+08 2.49999903e+08 4.96e-04 6.33e-08 1.82e-01 0s 7 2.50000000e+08 2.50000000e+08 1.64e-07 9.24e-12 1.84e-07 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, 82 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 (82 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: 7000000 x [25, 81] 6000000 x [5, 80] 5000000 x [9, 79] 4000000 x [27, 78] 10000000 x [32, 77] 5000000 x [30, 76] 1000000 x [11, 76] 8000000 x [22, 75] 4000000 x [37, 74] 1000000 x [10, 74] 7000000 x [36, 73] 8000000 x [33, 72] 1000000 x [4, 72] 7000000 x [41, 71] 6000000 x [42, 70] 3000000 x [15, 69] 4000000 x [23, 68] 2000000 x [32, 67] 5000000 x [38, 66] 1000000 x [3, 66] 3000000 x [46, 65] 2000000 x [10, 64] 7000000 x [4, 63] 8000000 x [13, 62] 3000000 x [11, 61] 4000000 x [34, 60] 1000000 x [3, 60] 11000000 x [51, 59] 2000000 x [54, 58] 1000000 x [1, 58] 4000000 x [18, 57] 5500000 x [56, 56] 8000000 x [8, 55] 4500000 x [54, 54] 5000000 x [20, 53] 1000000 x [3, 53] 7000000 x [1, 52] 5000000 x [28, 50] 1000000 x [3, 50] 4000000 x [21, 49] 7000000 x [47, 48] 8000000 x [43, 45] 7000000 x [6, 44] 3000000 x [39, 40] 5000000 x [31, 35] 1000000 x [12, 35] 8000000 x [24, 29] 6000000 x [17, 26] 5000000 x [14, 19] 9000000 x [7, 16] 9000000 x [2, 12]