Build (method = -2) #dp: 11426 Step-3' Graph: 612 vertices and 5005 arcs (0.06s) Step-4' Graph: 589 vertices and 4959 arcs (0.07s) #V4/#V3 = 0.96 #A4/#A3 = 0.99 Ready! (0.07s) Optimize a model with 629 rows, 4960 columns and 13708 nonzeros Presolve removed 49 rows and 74 columns Presolve time: 0.06s Presolved: 580 rows, 4886 columns, 13604 nonzeros Variable types: 0 continuous, 4886 integer (46 binary) Found heuristic solution: objective 323.0000000 Optimize a model with 580 rows, 4886 columns and 13604 nonzeros Presolved: 580 rows, 4886 columns, 13604 nonzeros Root barrier log... Ordering time: 0.01s Barrier statistics: AA' NZ : 8.448e+03 Factor NZ : 5.454e+04 (roughly 3 MBytes of memory) Factor Ops : 8.769e+06 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 6.98151011e+03 -1.76601408e+05 1.83e+05 6.27e-02 3.11e+02 0s 1 2.11203430e+03 -1.08993273e+05 3.37e+04 2.44e-15 6.26e+01 0s 2 8.00250321e+02 -4.37921277e+04 5.92e+03 2.26e-14 1.24e+01 0s 3 4.89052781e+02 -1.44010218e+04 1.11e+03 2.66e-15 2.73e+00 0s 4 4.27951060e+02 -6.68771207e+03 3.13e+02 1.20e-14 1.01e+00 0s 5 4.06130126e+02 -3.64757399e+03 9.51e+01 3.11e-15 4.81e-01 0s 6 3.95556282e+02 -5.66049210e+02 1.20e-01 3.55e-15 9.82e-02 0s 7 3.90584490e+02 -4.20717184e+02 1.48e-02 2.91e-15 8.28e-02 0s 8 3.87518988e+02 -3.12990691e+02 1.31e-02 3.63e-15 7.15e-02 0s 9 3.75662339e+02 -2.99271750e+02 1.16e-02 4.70e-15 6.89e-02 0s 10 3.69227107e+02 -2.45910680e+02 1.05e-02 4.33e-15 6.28e-02 0s 11 3.26817064e+02 -7.81192761e+01 7.18e-03 3.92e-15 4.14e-02 0s 12 2.76103537e+02 2.79904400e+01 4.92e-03 3.00e-15 2.53e-02 0s 13 2.42591866e+02 1.13806909e+02 2.91e-03 2.89e-15 1.32e-02 0s 14 2.18229895e+02 1.58109979e+02 1.56e-03 2.66e-15 6.14e-03 0s 15 2.00153561e+02 1.75287610e+02 4.26e-04 2.54e-15 2.54e-03 0s 16 1.94734161e+02 1.92866855e+02 4.35e-05 2.62e-15 1.91e-04 0s 17 1.94004002e+02 1.93998837e+02 1.87e-07 2.08e-15 5.27e-07 0s 18 1.94000004e+02 1.93999999e+02 3.07e-12 2.51e-15 5.27e-10 0s 19 1.94000000e+02 1.94000000e+02 1.46e-12 2.42e-15 5.27e-13 0s Barrier solved model in 19 iterations and 0.25 seconds Optimal objective 1.94000000e+02 Root relaxation: objective 1.940000e+02, 2393 iterations, 0.26 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 194.0000000 194.00000 0.0% - 0s Explored 0 nodes (2393 simplex iterations) in 0.53 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.940000000000e+02, best bound 1.940000000000e+02, gap 0.0% Preprocessing time: 0.09 seconds Gurobi run time: 0.53 seconds Total run time: 0.63 seconds Objective: 194 Solution: 1 x [11] 7 x [11, 33, 36] 1 x [11, 25] 1 x [11, 25, 25] 8 x [8, 28] 10 x [28, 39] 4 x [36, 39] 7 x [5, 32] 8 x [2, 32] 2 x [30] 2 x [24] 7 x [21] 3 x [5, 21] 3 x [21, 36] 2 x [21, 23, 33] 3 x [21, 23] 3 x [20] 1 x [6, 20] 5 x [5, 20] 5 x [19] 3 x [2, 19] 1 x [19, 40] 4 x [19, 23, 33, 34] 3 x [19, 23, 33] 3 x [17] 5 x [2, 17] 4 x [13, 17] 1 x [17, 38] 3 x [4, 16] 4 x [16, 40] 3 x [16, 38] 1 x [16, 33] 3 x [15] 3 x [12, 15] 3 x [10, 15] 1 x [15, 38] 1 x [31] 7 x [31, 37] 4 x [23, 31, 38] 2 x [3, 29] 5 x [22] 9 x [7, 22] 1 x [3, 22] 1 x [22, 23] 5 x [7, 18] 12 x [18, 27, 34] 3 x [9, 26, 36] 5 x [1] 7 x [1, 3, 35] 1 x [1, 26] 1 x [1, 35, 35] 1 x [1, 14] 1 x [1, 14, 14]