Build (method = -2) #dp: 747 Step-3' Graph: 32 vertices and 185 arcs (0.00s) Step-4' Graph: 27 vertices and 175 arcs (0.00s) #V4/#V3 = 0.84 #A4/#A3 = 0.95 Ready! (0.00s) Optimize a model with 93 rows, 176 columns and 480 nonzeros Presolve removed 53 rows and 58 columns Presolve time: 0.00s Presolved: 40 rows, 118 columns, 311 nonzeros Variable types: 0 continuous, 118 integer (0 binary) Found heuristic solution: objective 193.0000000 Found heuristic solution: objective 169.0000000 Optimize a model with 40 rows, 118 columns and 311 nonzeros Presolved: 40 rows, 118 columns, 311 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.320e+02 Factor NZ : 4.470e+02 Factor Ops : 6.005e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 7.82586309e+02 -1.00713897e+03 1.59e+03 2.22e-16 2.80e+01 0s 1 2.81009865e+02 -2.33348446e+02 1.43e+02 6.11e-16 3.46e+00 0s 2 1.89527958e+02 8.78968972e+01 7.06e-02 1.11e-15 4.02e-01 0s 3 1.64643129e+02 1.30399364e+02 3.35e-04 4.44e-16 1.35e-01 0s 4 1.49738002e+02 1.45514524e+02 3.09e-05 5.55e-16 1.67e-02 0s 5 1.48053840e+02 1.47236751e+02 6.42e-06 6.66e-16 3.23e-03 0s 6 1.47751184e+02 1.47494288e+02 1.51e-06 5.55e-16 1.02e-03 0s 7 1.47676109e+02 1.47653525e+02 8.57e-08 6.61e-16 8.93e-05 0s 8 1.47666676e+02 1.47666653e+02 4.26e-14 5.49e-16 8.94e-08 0s 9 1.47666667e+02 1.47666667e+02 1.33e-14 5.55e-16 8.94e-14 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 1.47666667e+02 Root relaxation: objective 1.476667e+02, 28 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 147.66667 0 10 169.00000 147.66667 12.6% - 0s H 0 0 148.0000000 147.66667 0.23% - 0s Explored 0 nodes (33 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.480000000000e+02, best bound 1.480000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 148 Solution: 1 x [66] 1 x [65] 1 x [64] 2 x [63] 3 x [62] 2 x [61] 4 x [60] 2 x [59] 2 x [58] 2 x [57] 4 x [56] 5 x [55] 4 x [54] 5 x [53] 3 x [52] 2 x [51] 3 x [50] 5 x [49] 1 x [48] 7 x [47] 4 x [46] 4 x [45] 3 x [44] 2 x [43] 5 x [42] 4 x [41] 5 x [40] 5 x [39] 4 x [38] 1 x [37] 4 x [1, 37] 1 x [36] 2 x [3, 35] 3 x [3, 34] 2 x [5, 33] 1 x [2, 33] 2 x [4, 32] 1 x [7, 31] 3 x [9, 30] 2 x [7, 29] 2 x [11, 28] 1 x [10, 27] 1 x [9, 27] 5 x [8, 27] 3 x [12, 26] 3 x [13, 25] 1 x [6, 24] 3 x [10, 23] 2 x [15, 22] 2 x [14, 22] 1 x [16, 21] 2 x [17, 20] 2 x [17, 19] 1 x [16, 18] 1 x [18, 18] 1 x [2, 2, 6]