Build (method = -2) #dp: 4147 Step-3' Graph: 104 vertices and 321 arcs (0.02s) Step-4' Graph: 5 vertices and 123 arcs (0.02s) #V4/#V3 = 0.05 #A4/#A3 = 0.38 Ready! (0.02s) Optimize a model with 45 rows, 124 columns and 368 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.00s Presolved: 43 rows, 122 columns, 364 nonzeros Variable types: 0 continuous, 122 integer (0 binary) Found heuristic solution: objective 2023.0000000 Found heuristic solution: objective 1979.0000000 Optimize a model with 43 rows, 122 columns and 364 nonzeros Presolved: 43 rows, 122 columns, 364 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.230e+02 Factor NZ : 5.720e+02 Factor Ops : 1.162e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 4.50325699e+03 -5.70615205e+03 1.35e+02 0.00e+00 7.95e+01 0s 1 1.41162220e+03 -2.02007646e+03 5.21e+00 3.33e-16 1.34e+01 0s 2 8.37072815e+02 3.28885500e+02 6.12e-02 4.44e-16 1.80e+00 0s 3 6.78240893e+02 6.51551438e+02 8.35e-13 4.44e-16 9.40e-02 0s 4 6.74688708e+02 6.74398510e+02 4.63e-13 2.22e-16 1.02e-03 0s 5 6.74666673e+02 6.74666663e+02 3.81e-13 4.44e-16 3.49e-08 0s 6 6.74666667e+02 6.74666667e+02 3.86e-13 3.33e-16 3.49e-11 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 6.74666667e+02 Root relaxation: objective 6.746667e+02, 105 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 674.66667 0 4 1979.00000 674.66667 65.9% - 0s H 0 0 675.0000000 674.66667 0.05% - 0s Explored 0 nodes (128 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 6.750000000000e+02, best bound 6.750000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.00 seconds Total run time: 0.03 seconds Objective: 675 Solution: 40 x [10, 22, 33] 4 x [1, 10, 22] 1 x [10, 22, 27] 34 x [2, 27, 34] 53 x [1, 17, 23] 36 x [14, 19, 26] 3 x [9, 14, 18] 52 x [3, 12, 21] 60 x [7, 8, 9] 15 x [8, 20, 37] 2 x [15, 21, 34] 1 x [11, 13, 17] 84 x [13, 15, 18] 1 x [13, 16, 28] 75 x [16, 29, 36] 29 x [4, 6, 28] 20 x [5, 35, 38] 7 x [5, 16, 38] 69 x [11, 32, 40] 1 x [24, 32, 39] 11 x [18, 20, 37] 9 x [11, 15, 25] 60 x [24, 30, 39] 6 x [24, 31, 39] 1 x [4, 34] 1 x [15, 15, 34]