Build (method = -2) #dp: 3296 Step-3' Graph: 108 vertices and 341 arcs (0.01s) Step-4' Graph: 27 vertices and 179 arcs (0.01s) #V4/#V3 = 0.25 #A4/#A3 = 0.52 Ready! (0.01s) Optimize a model with 105 rows, 180 columns and 491 nonzeros Presolve removed 28 rows and 29 columns Presolve time: 0.00s Presolved: 77 rows, 151 columns, 406 nonzeros Variable types: 0 continuous, 151 integer (0 binary) Found heuristic solution: objective 1.620000e+08 Optimize a model with 77 rows, 151 columns and 406 nonzeros Presolved: 77 rows, 151 columns, 406 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.510e+02 Factor NZ : 1.040e+03 Factor Ops : 2.098e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.21190457e+09 -2.59800404e+09 1.13e+09 2.22e-16 4.83e+07 0s 1 6.99839854e+08 -8.73898683e+08 1.28e+08 4.44e-16 7.22e+06 0s 2 1.86857134e+08 -3.46255480e+07 1.56e-07 4.44e-15 6.24e+05 0s 3 1.37904428e+08 7.72494195e+07 1.79e-07 7.77e-16 1.71e+05 0s 4 1.25703543e+08 1.14629563e+08 9.83e-08 2.22e-16 3.12e+04 0s 5 1.25002053e+08 1.24988775e+08 5.37e-07 2.22e-16 3.74e+01 0s 6 1.25000000e+08 1.25000000e+08 7.45e-08 3.02e-10 2.95e-04 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 1.25000000e+08 Warning: Markowitz tolerance tightened to 0.5 Root relaxation: objective 1.250000e+08, 152 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 1.250000e+08 1.2500e+08 0.0% - 0s Explored 0 nodes (152 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.250000000000e+08, best bound 1.250000000000e+08, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 125000000 Solution: 2000000 x [23, 78] 6000000 x [15, 77] 5000000 x [17, 76] 5000000 x [8, 75] 1000000 x [27, 74] 1000000 x [26, 73] 2000000 x [20, 72] 2000000 x [12, 71] 1000000 x [24, 70] 6000000 x [33, 69] 4000000 x [38, 68] 3000000 x [31, 67] 2000000 x [9, 66] 3000000 x [4, 65] 2000000 x [6, 64] 1000000 x [19, 63] 4000000 x [10, 62] 3000000 x [46, 61] 2000000 x [34, 60] 1000000 x [14, 60] 2000000 x [28, 59] 1000000 x [4, 59] 1000000 x [49, 58] 1000000 x [36, 58] 1000000 x [1, 58] 1000000 x [50, 57] 5000000 x [42, 57] 4000000 x [48, 56] 7000000 x [32, 56] 4000000 x [7, 55] 2000000 x [51, 54] 1000000 x [53, 53] 1000000 x [50, 52] 1000000 x [11, 47] 1000000 x [15, 45] 2000000 x [45, 45] 3000000 x [3, 44] 4000000 x [36, 43] 3000000 x [5, 41] 3000000 x [6, 40] 3000000 x [37, 39] 4000000 x [16, 35] 4000000 x [21, 30] 3000000 x [2, 29] 5000000 x [18, 25] 2000000 x [13, 22]