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 28 rows and 29 columns Presolve time: 0.00s Presolved: 82 rows, 161 columns, 432 nonzeros Variable types: 0 continuous, 161 integer (0 binary) Found heuristic solution: objective 994.0000000 Found heuristic solution: objective 635.0000000 Optimize a model with 82 rows, 161 columns and 432 nonzeros Presolve removed 1 rows and 1 columns Presolved: 81 rows, 160 columns, 430 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.590e+02 Factor NZ : 1.052e+03 Factor Ops : 2.102e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.46071578e+04 -8.08648620e+03 5.42e+03 2.22e-16 1.60e+02 0s 1 2.79281407e+03 -2.88264432e+03 5.54e+02 2.22e-16 2.30e+01 0s 2 7.00918943e+02 1.94296933e+01 5.97e-13 1.24e-14 1.82e+00 0s 3 5.27477049e+02 3.49343585e+02 5.65e-13 2.55e-15 4.75e-01 0s 4 5.00564399e+02 4.95961976e+02 4.48e-13 3.33e-16 1.23e-02 0s 5 5.00000003e+02 4.99999959e+02 3.98e-13 2.22e-16 1.20e-07 0s 6 5.00000000e+02 5.00000000e+02 2.28e-12 2.22e-16 1.20e-13 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 5.00000000e+02 Root relaxation: objective 5.000000e+02, 81 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 500.0000000 500.00000 0.0% - 0s Explored 0 nodes (81 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 5.000000000000e+02, best bound 5.000000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.01 seconds Total run time: 0.03 seconds Objective: 500 Solution: 17 x [25, 81] 3 x [9, 81] 14 x [24, 80] 1 x [19, 80] 5 x [28, 79] 14 x [23, 78] 1 x [14, 78] 9 x [33, 77] 18 x [32, 76] 2 x [9, 76] 14 x [36, 75] 1 x [4, 75] 9 x [14, 74] 17 x [37, 73] 1 x [4, 73] 11 x [34, 72] 1 x [4, 72] 14 x [15, 71] 1 x [4, 71] 10 x [26, 70] 11 x [27, 69] 1 x [1, 69] 15 x [40, 68] 1 x [1, 68] 15 x [21, 67] 1 x [1, 67] 14 x [43, 66] 1 x [1, 66] 11 x [20, 65] 1 x [1, 65] 1 x [48, 64] 12 x [46, 64] 2 x [4, 64] 9 x [48, 63] 10 x [50, 62] 14 x [51, 61] 1 x [50, 61] 13 x [49, 60] 3 x [52, 59] 9 x [5, 59] 11 x [54, 58] 1 x [55, 57] 5 x [54, 57] 3 x [52, 57] 10 x [55, 56] 2 x [52, 53] 16 x [16, 53] 12 x [10, 47] 1 x [1, 47] 8 x [12, 45] 11 x [6, 44] 3 x [9, 43] 2 x [5, 42] 13 x [3, 42] 10 x [29, 41] 12 x [13, 39] 1 x [4, 39] 8 x [17, 38] 15 x [22, 35] 1 x [4, 35] 12 x [8, 31] 12 x [7, 30] 2 x [7, 28] 9 x [11, 19] 12 x [2, 18]