Build (method = -2) #dp: 2298 Step-3' Graph: 353 vertices and 1052 arcs (0.02s) Step-4' Graph: 114 vertices and 574 arcs (0.02s) #V4/#V3 = 0.32 #A4/#A3 = 0.55 Ready! (0.02s) Optimize a model with 174 rows, 575 columns and 1501 nonzeros Presolve removed 49 rows and 94 columns Presolve time: 0.00s Presolved: 125 rows, 481 columns, 1289 nonzeros Variable types: 0 continuous, 481 integer (0 binary) Found heuristic solution: objective 2122.0000000 Optimize a model with 125 rows, 481 columns and 1289 nonzeros Presolved: 125 rows, 481 columns, 1289 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 7.610e+02 Factor NZ : 2.812e+03 Factor Ops : 7.285e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.52034060e+04 -7.99868317e+04 2.18e+05 2.22e-16 9.48e+02 0s 1 9.81270642e+03 -2.96121609e+04 3.02e+04 2.89e-15 1.44e+02 0s 2 3.11278750e+03 -8.59009139e+03 2.17e+03 5.33e-15 1.79e+01 0s 3 2.34236292e+03 -2.44799579e+03 1.99e+02 6.00e-15 5.22e+00 0s 4 1.95029137e+03 -2.73523135e+02 3.74e+01 2.22e-15 2.29e+00 0s 5 1.73779232e+03 5.29491014e+02 1.26e+01 1.66e-15 1.23e+00 0s 6 1.67200248e+03 1.10054695e+03 4.65e+00 1.12e-15 5.81e-01 0s 7 1.65043811e+03 1.58664735e+03 1.32e+00 1.14e-15 6.51e-02 0s 8 1.64306918e+03 1.64257221e+03 1.36e-12 1.18e-15 5.04e-04 0s 9 1.64300007e+03 1.64299957e+03 1.82e-12 1.21e-15 5.04e-07 0s 10 1.64300000e+03 1.64300000e+03 1.14e-12 1.06e-15 5.04e-10 0s Barrier solved model in 10 iterations and 0.01 seconds Optimal objective 1.64300000e+03 Root relaxation: objective 1.643000e+03, 302 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 1643.0000000 1643.00000 0.0% - 0s Explored 0 nodes (302 simplex iterations) in 0.02 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.643000000000e+03, best bound 1.643000000000e+03, gap 0.0% Preprocessing time: 0.03 seconds Gurobi run time: 0.02 seconds Total run time: 0.05 seconds Objective: 1643 Solution: 53 x [22] 41 x [46] 48 x [7] 85 x [37] 4 x [58] 68 x [40] 1 x [48] 37 x [20] 28 x [6] 14 x [11] 13 x [59] 69 x [29] 73 x [41] 11 x [21, 35, 41] 10 x [35, 41] 56 x [44, 56] 8 x [27, 56] 21 x [21, 27, 51] 12 x [33] 6 x [33, 52] 65 x [24, 33] 3 x [27, 33] 21 x [34] 1 x [14, 34] 37 x [1, 52] 7 x [1, 27] 19 x [16, 27] 1 x [17] 8 x [15, 17] 12 x [17, 27] 36 x [8, 10, 36] 41 x [10, 47] 14 x [32, 49] 85 x [25, 28] 8 x [25, 32] 1 x [38] 18 x [38, 60] 8 x [24, 38, 60] 1 x [38, 42] 30 x [15, 50] 17 x [3, 55] 18 x [32, 55] 57 x [52, 55] 21 x [19] 12 x [57] 11 x [4, 31] 15 x [4, 9] 6 x [4, 30] 13 x [4, 23, 30] 36 x [4, 8, 30] 63 x [13, 53] 29 x [23, 36, 53] 23 x [45] 46 x [5, 14, 23] 17 x [5, 42] 26 x [39] 30 x [2, 18, 39] 7 x [12] 10 x [12, 30] 8 x [2, 12] 17 x [12, 27] 17 x [26] 19 x [18, 26] 27 x [26, 30] 6 x [26, 32, 54] 2 x [23, 26, 36] 12 x [26, 36, 43] 4 x [23, 26, 42]