Build (method = -2) #dp: 6582 Step-3' Graph: 492 vertices and 3024 arcs (0.04s) Step-4' Graph: 472 vertices and 2984 arcs (0.04s) #V4/#V3 = 0.96 #A4/#A3 = 0.99 Ready! (0.04s) Optimize a model with 510 rows, 2985 columns and 8036 nonzeros Presolve removed 77 rows and 125 columns Presolve time: 0.04s Presolved: 433 rows, 2860 columns, 7856 nonzeros Variable types: 0 continuous, 2860 integer (0 binary) Found heuristic solution: objective 3847.0000000 Found heuristic solution: objective 3568.0000000 Optimize a model with 433 rows, 2860 columns and 7856 nonzeros Presolved: 433 rows, 2860 columns, 7856 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 4.823e+03 Factor NZ : 2.724e+04 (roughly 2 MBytes of memory) Factor Ops : 2.926e+06 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.24161831e+04 -8.12621463e+05 7.21e+05 2.22e-16 1.32e+03 0s 1 1.20450252e+04 -4.36882225e+05 1.50e+05 1.22e-15 3.05e+02 0s 2 6.04517901e+03 -1.65945595e+05 3.14e+04 1.33e-14 7.01e+01 0s 3 4.24278069e+03 -4.00708483e+04 3.73e+03 1.33e-14 1.15e+01 0s 4 4.02719399e+03 -1.67097036e+04 5.95e+02 5.33e-15 4.07e+00 0s 5 3.97017724e+03 -5.61913733e+03 4.84e+00 2.22e-15 1.67e+00 0s 6 3.93362549e+03 -4.65637143e+03 3.77e+00 2.22e-15 1.50e+00 0s 7 3.52125930e+03 -3.05974477e+03 1.39e-02 1.55e-15 1.15e+00 0s 8 2.73453287e+03 -4.50755653e+01 5.10e-03 6.70e-16 4.84e-01 0s 9 2.30356007e+03 1.26011587e+03 1.38e-03 7.29e-16 1.82e-01 0s 10 2.21004048e+03 1.79614598e+03 6.26e-04 6.13e-16 7.21e-02 0s 11 2.14186882e+03 2.10948686e+03 3.64e-05 5.42e-16 5.64e-03 0s 12 2.13401170e+03 2.13397093e+03 4.01e-09 5.37e-16 7.10e-06 0s 13 2.13400000e+03 2.13400000e+03 2.00e-11 7.65e-16 7.18e-12 0s 14 2.13400000e+03 2.13400000e+03 3.64e-12 5.82e-16 7.18e-15 0s Barrier solved model in 14 iterations and 0.07 seconds Optimal objective 2.13400000e+03 Root relaxation: objective 2.134000e+03, 1315 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 2134.0000000 2134.00000 0.0% - 0s Explored 0 nodes (1315 simplex iterations) in 0.18 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.134000000000e+03, best bound 2.134000000000e+03, gap 0.0% Preprocessing time: 0.06 seconds Gurobi run time: 0.18 seconds Total run time: 0.24 seconds Objective: 2134 Solution: 82 x [8, 38] 15 x [5] 42 x [5, 25] 32 x [5, 23] 84 x [5, 22] 22 x [5, 18, 22] 19 x [35] 1 x [15, 35] 6 x [15, 15, 15, 15, 35] 18 x [23, 37] 5 x [33] 31 x [33, 38] 3 x [29] 22 x [29, 32] 64 x [20, 29] 65 x [24] 65 x [21] 131 x [6, 18, 21] 66 x [19] 79 x [1, 19] 25 x [16] 89 x [16, 17] 44 x [1, 16] 45 x [16, 23] 15 x [10] 25 x [9] 111 x [9, 14] 10 x [6, 9, 14] 66 x [9, 38] 1 x [9, 22, 38] 22 x [9, 22, 22, 38] 25 x [36] 5 x [25, 36] 98 x [28, 31] 48 x [30] 98 x [28, 30] 101 x [4, 26] 5 x [12] 87 x [7, 12] 93 x [3] 41 x [3, 7] 19 x [3, 4] 26 x [3, 25] 5 x [3, 20] 20 x [34] 26 x [13, 34] 44 x [11, 34] 42 x [2, 34] 5 x [25, 34] 36 x [23, 34] 5 x [27, 34]