Build (method = -2) #dp: 2636 Step-3' Graph: 72 vertices and 246 arcs (0.01s) Step-4' Graph: 37 vertices and 176 arcs (0.01s) #V4/#V3 = 0.51 #A4/#A3 = 0.72 Ready! (0.01s) Optimize a model with 110 rows, 177 columns and 462 nonzeros Presolve removed 47 rows and 48 columns Presolve time: 0.00s Presolved: 63 rows, 129 columns, 319 nonzeros Variable types: 0 continuous, 129 integer (6 binary) Found heuristic solution: objective 186.0000000 Found heuristic solution: objective 161.0000000 Found heuristic solution: objective 108.0000000 Optimize a model with 63 rows, 129 columns and 319 nonzeros Presolve removed 1 rows and 1 columns Presolved: 62 rows, 128 columns, 317 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.210e+02 Factor NZ : 9.950e+02 Factor Ops : 2.084e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.70356277e+03 -3.69975909e+03 9.28e+02 2.22e-16 7.84e+01 0s 1 8.69053061e+02 -1.07241267e+03 1.24e+02 4.44e-16 1.18e+01 0s 2 1.96981383e+02 -8.92627623e+01 4.09e+00 1.80e-14 1.11e+00 0s 3 1.42643411e+02 4.99418037e+01 3.44e-02 4.33e-15 3.27e-01 0s 4 1.24795475e+02 9.77832827e+01 1.08e-02 4.44e-16 9.51e-02 0s 5 1.10124110e+02 1.03153793e+02 2.95e-03 3.33e-16 2.46e-02 0s 6 1.07150479e+02 1.05709985e+02 7.98e-04 3.33e-16 5.07e-03 0s 7 1.06553302e+02 1.06421928e+02 2.91e-05 2.74e-16 4.63e-04 0s 8 1.06500096e+02 1.06499863e+02 3.99e-11 4.44e-16 8.19e-07 0s 9 1.06500000e+02 1.06500000e+02 6.82e-12 2.22e-16 8.19e-10 0s 10 1.06500000e+02 1.06500000e+02 1.06e-11 2.22e-16 8.19e-13 0s Barrier solved model in 10 iterations and 0.00 seconds Optimal objective 1.06500000e+02 Root relaxation: objective 1.065000e+02, 47 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 106.50000 0 2 108.00000 106.50000 1.39% - 0s H 0 0 107.0000000 106.50000 0.47% - 0s Explored 0 nodes (51 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.070000000000e+02, best bound 1.070000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.01 seconds Total run time: 0.03 seconds Objective: 107 Solution: 3 x [73] 1 x [2, 72] 2 x [3, 71] 4 x [1, 70] 1 x [2, 69] 2 x [5, 68] 2 x [4, 68] 1 x [2, 67] 1 x [66] 3 x [6, 65] 6 x [64] 2 x [8, 63] 2 x [7, 63] 1 x [9, 62] 1 x [6, 62] 3 x [61] 1 x [10, 61] 2 x [11, 60] 1 x [12, 59] 2 x [13, 58] 3 x [14, 57] 2 x [13, 57] 4 x [15, 56] 1 x [12, 56] 3 x [16, 55] 2 x [17, 54] 1 x [17, 53] 3 x [19, 52] 3 x [18, 51] 4 x [20, 50] 4 x [23, 49] 3 x [24, 48] 2 x [22, 47] 2 x [26, 46] 1 x [25, 46] 1 x [21, 45] 2 x [27, 44] 3 x [29, 43] 2 x [19, 42] 3 x [29, 41] 3 x [28, 40] 2 x [31, 39] 1 x [33, 38] 1 x [32, 38] 1 x [30, 38] 2 x [34, 37] 1 x [36] 2 x [35, 35] 4 x [33, 34]