Build (method = -2) #dp: 627 Step-3' Graph: 125 vertices and 368 arcs (0.00s) Step-4' Graph: 33 vertices and 184 arcs (0.00s) #V4/#V3 = 0.26 #A4/#A3 = 0.50 Ready! (0.00s) Optimize a model with 73 rows, 185 columns and 493 nonzeros Presolve removed 24 rows and 26 columns Presolve time: 0.00s Presolved: 49 rows, 159 columns, 419 nonzeros Variable types: 0 continuous, 159 integer (0 binary) Found heuristic solution: objective 3724.0000000 Found heuristic solution: objective 3303.0000000 Optimize a model with 49 rows, 159 columns and 419 nonzeros Presolved: 49 rows, 159 columns, 419 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.100e+02 Factor NZ : 6.480e+02 Factor Ops : 1.014e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.39374082e+04 -3.62047923e+04 7.38e+04 2.22e-16 7.94e+02 0s 1 7.51546897e+03 -1.12101302e+04 8.87e+03 5.55e-16 1.17e+02 0s 2 3.78631962e+03 -1.24212712e+03 5.82e+02 2.22e-15 1.76e+01 0s 3 2.94842185e+03 1.48094105e+03 3.86e-01 1.22e-15 4.37e+00 0s 4 2.57063690e+03 2.18723348e+03 2.24e-02 4.09e-16 1.14e+00 0s 5 2.50804131e+03 2.41871734e+03 5.08e-03 5.90e-16 2.66e-01 0s 6 2.49772986e+03 2.49572350e+03 1.93e-04 4.44e-16 5.97e-03 0s 7 2.49700002e+03 2.49699991e+03 6.69e-09 2.90e-16 3.33e-07 0s 8 2.49700000e+03 2.49700000e+03 1.04e-12 4.86e-16 3.33e-10 0s 9 2.49700000e+03 2.49700000e+03 3.13e-13 4.44e-16 6.92e-16 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 2.49700000e+03 Root relaxation: objective 2.497000e+03, 68 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 2497.0000000 2497.00000 0.0% - 0s Explored 0 nodes (68 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.497000000000e+03, best bound 2.497000000000e+03, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 2497 Solution: 137 x [1] 29 x [2] 60 x [3] 137 x [4] 78 x [5] 4 x [5, 39] 7 x [5, 40] 166 x [6] 1 x [7] 143 x [7, 40] 166 x [8] 8 x [9, 34] 6 x [9, 35] 103 x [9, 36] 160 x [10, 35] 146 x [11, 37] 151 x [12, 34] 78 x [13, 33] 50 x [14] 114 x [15] 17 x [15, 26] 7 x [16] 20 x [16, 27] 58 x [16, 29] 3 x [16, 33] 28 x [17] 117 x [17, 32] 139 x [18, 22] 2 x [18, 26] 13 x [18, 30] 1 x [18, 35] 9 x [19] 80 x [19, 25] 1 x [19, 35] 33 x [19, 38] 31 x [20, 24] 91 x [20, 31] 4 x [20, 40] 12 x [21] 6 x [21, 23] 57 x [21, 28] 24 x [21, 37]