Build (method = -2) #dp: 605 Step-3' Graph: 12 vertices and 131 arcs (0.00s) Step-4' Graph: 8 vertices and 123 arcs (0.00s) #V4/#V3 = 0.67 #A4/#A3 = 0.94 Ready! (0.00s) Optimize a model with 88 rows, 124 columns and 361 nonzeros Presolve removed 55 rows and 60 columns Presolve time: 0.00s Presolved: 33 rows, 64 columns, 184 nonzeros Variable types: 0 continuous, 64 integer (1 binary) Found heuristic solution: objective 432.0000000 Found heuristic solution: objective 307.0000000 Optimize a model with 33 rows, 64 columns and 184 nonzeros Presolved: 33 rows, 64 columns, 184 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 6.300e+01 Factor NZ : 5.020e+02 Factor Ops : 1.043e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.48985298e+03 -9.63899569e+02 7.09e+01 2.22e-16 4.20e+01 0s 1 5.12622433e+02 -9.44771362e+01 5.75e+00 4.44e-16 5.53e+00 0s 2 3.47120341e+02 2.03866964e+02 6.27e-02 3.89e-15 9.27e-01 0s 3 2.93514476e+02 2.80074950e+02 1.46e-03 3.33e-16 8.62e-02 0s 4 2.88515501e+02 2.88390196e+02 5.68e-14 2.22e-16 8.03e-04 0s 5 2.88500000e+02 2.88500000e+02 1.71e-13 3.33e-16 2.03e-09 0s 6 2.88500000e+02 2.88500000e+02 7.46e-14 2.22e-16 2.32e-15 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 2.88500000e+02 Root relaxation: objective 2.885000e+02, 32 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 288.50000 0 2 307.00000 288.50000 6.03% - 0s H 0 0 289.0000000 288.50000 0.17% - 0s Explored 0 nodes (32 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.890000000000e+02, best bound 2.890000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 289 Solution: 1 x [68] 2 x [61] 8 x [58] 1 x [45] 3 x [42] 8 x [28] 2 x [20] 6 x [17] 10 x [16] 2 x [4] 7 x [59] 9 x [53] 5 x [40, 65] 4 x [37] 1 x [37, 72] 3 x [22, 44] 6 x [9] 6 x [7, 72] 4 x [3, 69] 1 x [3, 65] 5 x [47, 78] 1 x [18, 52] 7 x [50] 9 x [24] 7 x [12, 25] 10 x [75] 10 x [63] 1 x [8, 62] 8 x [51, 70] 7 x [15, 46] 2 x [41, 77] 2 x [38, 76] 9 x [36] 6 x [19, 26] 1 x [18, 26] 5 x [21, 29] 10 x [79] 1 x [74, 80] 3 x [33, 74] 3 x [27, 67] 1 x [10, 66] 8 x [57, 60] 3 x [25, 56] 5 x [34, 55] 9 x [48, 80] 6 x [31, 39] 2 x [32, 35] 1 x [15, 32] 8 x [30, 54] 5 x [11, 13] 4 x [2, 6] 1 x [6, 15] 9 x [1, 10] 5 x [5, 73] 7 x [64, 71] 1 x [14, 71] 9 x [23, 49] 6 x [14, 43] 1 x [14] 2 x [5, 14]