Build (method = -2) #dp: 7071 Step-3' Graph: 120 vertices and 1651 arcs (0.03s) Step-4' Graph: 85 vertices and 1581 arcs (0.03s) #V4/#V3 = 0.71 #A4/#A3 = 0.96 Ready! (0.03s) Optimize a model with 166 rows, 1582 columns and 4582 nonzeros Presolve removed 28 rows and 46 columns Presolve time: 0.02s Presolved: 138 rows, 1536 columns, 4465 nonzeros Variable types: 0 continuous, 1536 integer (0 binary) Found heuristic solution: objective 998.0000000 Found heuristic solution: objective 704.0000000 Optimize a model with 138 rows, 1536 columns and 4465 nonzeros Presolved: 138 rows, 1536 columns, 4465 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.908e+03 Factor NZ : 5.306e+03 Factor Ops : 2.752e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.91348306e+04 -7.42063379e+04 1.79e+05 2.22e-16 1.93e+02 0s 1 5.42365126e+03 -1.82926883e+04 3.06e+04 9.99e-16 3.39e+01 0s 2 1.53135988e+03 -7.01503505e+03 4.31e+03 3.13e-14 5.87e+00 0s 3 8.33282968e+02 -1.88392940e+03 1.43e+02 8.66e-15 9.36e-01 0s 4 7.27074048e+02 -9.94022080e+02 8.99e+01 5.22e-15 5.83e-01 0s 5 5.87327855e+02 -5.49467819e+02 3.83e+01 3.11e-15 3.75e-01 0s 6 5.10797814e+02 -7.51295661e+01 1.71e+01 1.64e-15 1.90e-01 0s 7 4.90207794e+02 1.09029063e+02 1.28e+01 1.44e-15 1.24e-01 0s 8 4.31095384e+02 2.88777923e+02 2.26e+00 1.44e-15 4.57e-02 0s 9 4.20033371e+02 3.60111967e+02 6.48e-01 1.23e-15 1.92e-02 0s 10 4.13778709e+02 3.94970833e+02 9.58e-02 1.33e-15 6.02e-03 0s 11 4.11581500e+02 4.05262808e+02 2.57e-02 1.44e-15 2.02e-03 0s 12 4.10645883e+02 4.08677432e+02 7.49e-03 1.58e-15 6.29e-04 0s 13 4.10456536e+02 4.09495526e+02 4.63e-03 1.02e-15 3.07e-04 0s 14 4.10228320e+02 4.10141699e+02 2.41e-04 1.05e-15 2.77e-05 0s 15 4.10200077e+02 4.10199751e+02 4.34e-07 1.39e-15 1.04e-07 0s 16 4.10200000e+02 4.10200000e+02 6.82e-13 1.35e-15 1.04e-10 0s Barrier solved model in 16 iterations and 0.02 seconds Optimal objective 4.10200000e+02 Root relaxation: objective 4.102000e+02, 654 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 410.20000 0 58 704.00000 410.20000 41.7% - 0s H 0 0 413.0000000 410.20000 0.68% - 0s H 0 0 412.0000000 410.20000 0.44% - 0s H 0 0 411.0000000 410.20000 0.19% - 0s Explored 0 nodes (1206 simplex iterations) in 0.15 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 4.110000000000e+02, best bound 4.110000000000e+02, gap 0.0% Preprocessing time: 0.04 seconds Gurobi run time: 0.15 seconds Total run time: 0.19 seconds Objective: 411 Solution: 12 x [31, 81] 6 x [1, 11, 81] 2 x [2, 10, 81] 15 x [32, 80] 5 x [33, 79] 11 x [34, 78] 4 x [7, 8, 78] 9 x [35, 77] 11 x [36, 76] 9 x [7, 10, 76] 14 x [37, 75] 1 x [7, 11, 75] 8 x [38, 74] 1 x [9, 10, 74] 9 x [39, 73] 4 x [6, 14, 73] 3 x [8, 12, 73] 2 x [9, 11, 73] 12 x [40, 72] 10 x [41, 71] 5 x [6, 16, 71] 8 x [42, 70] 1 x [3, 17, 70] 1 x [9, 14, 70] 8 x [43, 69] 4 x [3, 21, 69] 8 x [44, 68] 8 x [4, 21, 68] 3 x [2, 24, 67] 1 x [5, 21, 67] 1 x [9, 17, 67] 5 x [12, 14, 67] 6 x [13, 13, 67] 12 x [46, 66] 3 x [2, 25, 66] 10 x [47, 65] 2 x [2, 26, 65] 5 x [3, 26, 64] 10 x [5, 24, 64] 2 x [9, 21, 63] 7 x [15, 15, 63] 10 x [50, 62] 14 x [51, 61] 1 x [6, 26, 61] 8 x [52, 60] 2 x [8, 25, 60] 1 x [6, 24, 60] 2 x [16, 17, 60] 12 x [53, 59] 11 x [54, 58] 9 x [55, 57] 5 x [56, 56] 2 x [3, 35, 55] 1 x [3, 36, 54] 4 x [16, 23, 54] 1 x [9, 29, 53] 5 x [20, 20, 53] 1 x [17, 26, 50] 2 x [8, 36, 49] 1 x [18, 26, 49] 10 x [19, 25, 49] 2 x [2, 43, 48] 8 x [22, 23, 48] 3 x [16, 30, 47] 7 x [18, 30, 45] 1 x [8, 45] 3 x [17, 32, 44] 7 x [22, 28, 43] 2 x [16, 35, 42] 4 x [18, 33, 42] 1 x [25, 25, 42] 2 x [23, 30, 40] 1 x [20, 40] 4 x [27, 27, 39] 3 x [27, 29, 37] 3 x [29, 29, 35]