Build (method = -2) #dp: 853 Step-3' Graph: 72 vertices and 435 arcs (0.00s) Step-4' Graph: 43 vertices and 377 arcs (0.00s) #V4/#V3 = 0.60 #A4/#A3 = 0.87 Ready! (0.00s) Optimize a model with 79 rows, 378 columns and 1055 nonzeros Presolve removed 18 rows and 27 columns Presolve time: 0.00s Presolved: 61 rows, 351 columns, 987 nonzeros Variable types: 0 continuous, 351 integer (0 binary) Found heuristic solution: objective 3799.0000000 Found heuristic solution: objective 3410.0000000 Optimize a model with 61 rows, 351 columns and 987 nonzeros Presolved: 61 rows, 351 columns, 987 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 4.890e+02 Factor NZ : 1.229e+03 Factor Ops : 2.855e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.57242903e+04 -6.10603812e+04 1.83e+05 2.22e-16 8.18e+02 0s 1 1.09210211e+04 -2.15783367e+04 2.94e+04 5.55e-16 1.44e+02 0s 2 3.97423594e+03 -5.22565713e+03 2.02e+03 5.66e-15 1.77e+01 0s 3 2.88443267e+03 -2.67738713e+02 1.82e+02 1.44e-15 4.63e+00 0s 4 2.30599417e+03 1.05622243e+03 5.82e+00 4.48e-16 1.73e+00 0s 5 2.18211950e+03 1.76814477e+03 2.27e+00 4.08e-16 5.74e-01 0s 6 2.11689153e+03 1.95994925e+03 5.33e-01 4.11e-16 2.17e-01 0s 7 2.09905964e+03 2.03311106e+03 2.01e-01 8.17e-16 9.12e-02 0s 8 2.09172949e+03 2.06342153e+03 2.47e-02 4.14e-16 3.91e-02 0s 9 2.08747801e+03 2.08162689e+03 3.68e-03 4.64e-16 8.08e-03 0s 10 2.08667960e+03 2.08664308e+03 3.95e-05 5.28e-16 5.05e-05 0s 11 2.08666668e+03 2.08666664e+03 5.74e-09 5.05e-16 5.26e-08 0s 12 2.08666667e+03 2.08666667e+03 9.13e-10 3.45e-16 5.26e-11 0s Barrier solved model in 12 iterations and 0.00 seconds Optimal objective 2.08666667e+03 Root relaxation: objective 2.086667e+03, 71 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2086.66667 0 9 3410.00000 2086.66667 38.8% - 0s H 0 0 2088.0000000 2086.66667 0.06% - 0s H 0 0 2087.0000000 2086.66667 0.02% - 0s Explored 0 nodes (82 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.087000000000e+03, best bound 2.087000000000e+03, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 2087 Solution: 22 x [2, 17] 60 x [22, 36] 14 x [17, 36] 220 x [32] 6 x [29, 32] 29 x [19, 32] 38 x [1, 9] 193 x [6, 15] 12 x [4, 15] 73 x [8, 12] 50 x [5, 12] 18 x [4, 12] 73 x [1, 12] 18 x [30, 31] 196 x [28, 31] 27 x [26, 30] 198 x [25, 26] 20 x [24, 30] 116 x [14, 24] 13 x [20, 35] 71 x [20, 33] 1 x [20, 30] 115 x [13, 27] 10 x [7, 13] 90 x [3, 13] 8 x [11, 27] 86 x [10, 27] 48 x [18, 34] 102 x [21, 23] 1 x [5, 23, 29] 34 x [21, 21] 8 x [16, 18] 3 x [7, 16] 1 x [3, 16] 68 x [16, 16] 32 x [1, 3, 14] 13 x [14, 14, 14]