Build (method = -2) #dp: 1700 Step-3' Graph: 59 vertices and 686 arcs (0.01s) Step-4' Graph: 52 vertices and 672 arcs (0.01s) #V4/#V3 = 0.88 #A4/#A3 = 0.98 Ready! (0.01s) Optimize a model with 124 rows, 673 columns and 1922 nonzeros Presolve removed 50 rows and 60 columns Presolve time: 0.01s Presolved: 74 rows, 613 columns, 1756 nonzeros Variable types: 0 continuous, 613 integer (181 binary) Found heuristic solution: objective 180.0000000 Found heuristic solution: objective 172.0000000 Found heuristic solution: objective 150.0000000 Optimize a model with 74 rows, 613 columns and 1756 nonzeros Presolved: 74 rows, 613 columns, 1756 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 8.520e+02 Factor NZ : 1.688e+03 Factor Ops : 4.966e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.85736396e+03 -2.48051756e+03 4.93e+03 1.76e-01 2.37e+01 0s 1 8.03210344e+02 -9.73235561e+02 9.43e+02 7.77e-16 4.86e+00 0s 2 2.25854667e+02 -3.03934269e+02 7.02e+01 1.67e-15 6.24e-01 0s 3 1.54026182e+02 6.92868569e+01 3.40e+00 8.60e-16 7.32e-02 0s 4 1.38887105e+02 1.03081055e+02 7.28e-01 2.35e-15 2.95e-02 0s 5 1.33899512e+02 1.19948683e+02 3.19e-01 7.84e-16 1.15e-02 0s 6 1.30235514e+02 1.26350130e+02 7.71e-02 2.45e-16 3.19e-03 0s 7 1.29622226e+02 1.29107087e+02 1.00e-02 2.69e-16 4.21e-04 0s 8 1.29501557e+02 1.29498229e+02 7.88e-14 3.33e-16 2.67e-06 0s 9 1.29500000e+02 1.29500000e+02 3.08e-13 3.33e-16 7.25e-12 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 1.29500000e+02 Root relaxation: objective 1.295000e+02, 203 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 129.50000 0 2 150.00000 129.50000 13.7% - 0s H 0 0 130.0000000 129.50000 0.38% - 0s Explored 0 nodes (239 simplex iterations) in 0.03 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.300000000000e+02, best bound 1.300000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.03 seconds Total run time: 0.05 seconds Objective: 130 Solution: 1 x [72] 4 x [71] 5 x [70] 3 x [69] 3 x [68] 2 x [67] 1 x [66] 1 x [65] 2 x [64] 3 x [63] 4 x [62] 2 x [61] 3 x [60] 3 x [59] 3 x [58] 2 x [57] 2 x [56] 3 x [1, 55] 1 x [54] 5 x [53] 3 x [3, 52] 1 x [1, 51] 2 x [5, 50] 3 x [4, 49] 2 x [6, 48] 4 x [47] 3 x [3, 46] 2 x [2, 45] 3 x [9, 44] 1 x [10, 43] 1 x [8, 43] 4 x [12, 42] 1 x [13, 41] 2 x [11, 41] 3 x [14, 40] 1 x [7, 40] 6 x [39] 2 x [15, 39] 2 x [16, 38] 1 x [17, 37] 3 x [18, 36] 1 x [17, 36] 3 x [19, 35] 1 x [20, 34] 3 x [16, 34] 1 x [23, 33] 1 x [24, 32] 1 x [23, 32] 3 x [25, 31] 1 x [24, 31] 1 x [22, 31] 2 x [26, 30] 2 x [27, 29] 1 x [26, 29] 3 x [28, 28] 1 x [26, 27] 1 x [21] 1 x [2, 16, 17]