Build (method = -2) #dp: 24176 Step-3' Graph: 102 vertices and 3259 arcs (0.12s) Step-4' Graph: 102 vertices and 3259 arcs (0.12s) #V4/#V3 = 1.00 #A4/#A3 = 1.00 Ready! (0.12s) Optimize a model with 182 rows, 3260 columns and 9592 nonzeros Presolve removed 18 rows and 20 columns Presolve time: 0.04s Presolved: 164 rows, 3240 columns, 9536 nonzeros Variable types: 0 continuous, 3240 integer (150 binary) Found heuristic solution: objective 2537.0000000 Found heuristic solution: objective 1905.0000000 Optimize a model with 164 rows, 3240 columns and 9536 nonzeros Presolved: 164 rows, 3240 columns, 9536 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 5.548e+03 Factor NZ : 8.286e+03 (roughly 1 MByte of memory) Factor Ops : 5.678e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 8.37942292e+04 -1.94158986e+05 9.13e+04 7.64e-02 8.73e+02 0s 1 2.16230170e+04 -1.17691009e+05 1.40e+04 6.66e-16 1.44e+02 0s 2 3.99079070e+03 -6.18735547e+04 8.03e+02 1.55e-15 1.63e+01 0s 3 2.74031036e+03 -1.31623317e+04 1.05e+02 9.33e-15 2.86e+00 0s 4 2.38985311e+03 -3.48673123e+03 2.72e+01 2.66e-15 9.53e-01 0s 5 2.17357626e+03 -1.31401273e+03 1.90e+01 1.11e-15 5.63e-01 0s 6 1.86361673e+03 -6.91831706e+02 1.06e+01 8.88e-16 4.06e-01 0s 7 1.67584922e+03 3.55934795e+02 7.80e+00 3.33e-16 2.10e-01 0s 8 1.40725946e+03 5.34571707e+02 4.00e+00 3.33e-16 1.38e-01 0s 9 1.25759861e+03 6.79333516e+02 2.50e+00 3.33e-16 9.08e-02 0s 10 1.16675428e+03 9.03199364e+02 1.41e+00 2.66e-16 4.14e-02 0s 11 1.08893107e+03 9.61885130e+02 7.12e-01 4.09e-16 1.99e-02 0s 12 1.05483695e+03 9.76977002e+02 4.25e-01 2.22e-16 1.21e-02 0s 13 1.03992493e+03 9.83398677e+02 2.91e-01 2.04e-16 8.79e-03 0s 14 1.02739617e+03 9.90317517e+02 1.80e-01 2.22e-16 5.75e-03 0s 15 1.02279502e+03 9.95890449e+02 1.33e-01 3.33e-16 4.17e-03 0s 16 1.02051519e+03 9.97561044e+02 1.07e-01 3.33e-16 3.55e-03 0s 17 1.01991134e+03 1.00363101e+03 9.33e-02 2.22e-16 2.52e-03 0s 18 1.01708518e+03 1.00722455e+03 3.65e-02 2.22e-16 1.52e-03 0s 19 1.01607715e+03 1.00946154e+03 2.66e-02 2.22e-16 1.02e-03 0s 20 1.01572762e+03 1.01012358e+03 2.32e-02 3.33e-16 8.60e-04 0s 21 1.01492823e+03 1.01081094e+03 1.60e-02 3.33e-16 6.32e-04 0s 22 1.01435100e+03 1.01158054e+03 1.16e-02 3.33e-16 4.25e-04 0s 23 1.01404347e+03 1.01159583e+03 9.60e-03 3.33e-16 3.75e-04 0s 24 1.01376232e+03 1.01194544e+03 8.05e-03 2.22e-16 2.79e-04 0s 25 1.01322259e+03 1.01206331e+03 4.62e-03 2.22e-16 1.78e-04 0s 26 1.01295088e+03 1.01223585e+03 2.83e-03 3.33e-16 1.10e-04 0s 27 1.01260773e+03 1.01232636e+03 1.01e-03 3.33e-16 4.31e-05 0s 28 1.01243474e+03 1.01240144e+03 1.15e-04 2.60e-16 5.10e-06 0s 29 1.01241835e+03 1.01241534e+03 7.68e-06 3.33e-16 4.62e-07 0s 30 1.01241667e+03 1.01241666e+03 7.36e-09 3.76e-16 5.82e-10 0s 31 1.01241667e+03 1.01241667e+03 2.09e-10 3.33e-16 5.82e-13 0s Barrier solved model in 31 iterations and 0.08 seconds Optimal objective 1.01241667e+03 Root relaxation: objective 1.012417e+03, 606 iterations, 0.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1012.41667 0 40 1905.00000 1012.41667 46.9% - 0s H 0 0 1013.0000000 1012.41667 0.06% - 0s Explored 0 nodes (1357 simplex iterations) in 0.26 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.013000000000e+03, best bound 1.013000000000e+03, gap 0.0% Preprocessing time: 0.14 seconds Gurobi run time: 0.26 seconds Total run time: 0.40 seconds Objective: 1013 Solution: 39 x [8] 50 x [29, 41] 25 x [17, 29] 6 x [1, 29] 7 x [1, 4] 15 x [60, 63] 29 x [13, 63] 20 x [5, 63] 13 x [54, 56, 63] 11 x [47, 54, 63] 22 x [9, 69] 7 x [9, 41, 69] 7 x [9, 30, 80] 9 x [9, 31, 52] 10 x [3, 64] 6 x [43, 57] 9 x [6, 50] 1 x [25, 50] 4 x [39, 50, 62] 1 x [39, 50, 57] 39 x [27, 41, 48] 18 x [39, 48, 62] 42 x [48, 53, 69] 21 x [38, 45] 3 x [38, 70] 1 x [2, 38] 9 x [27, 38, 58] 11 x [27, 38, 39] 32 x [21, 27, 38] 7 x [38, 54, 74] 3 x [5, 38, 57] 4 x [20, 73] 47 x [10, 73] 2 x [22, 73] 1 x [73, 78] 1 x [36, 73, 78] 9 x [36, 67, 73] 18 x [42, 56, 73] 6 x [57, 69, 73] 11 x [11, 24] 28 x [22, 32, 36] 28 x [7, 32, 47] 17 x [32, 68, 71] 1 x [32, 59, 74] 18 x [14, 34] 24 x [14, 74, 79] 4 x [14, 59, 74] 59 x [49, 75] 7 x [40, 40] 22 x [16, 35, 53] 3 x [35, 59, 61] 8 x [23, 33, 69] 1 x [12, 18, 23] 6 x [3, 18, 23] 15 x [31, 55, 76] 11 x [24, 55, 65] 2 x [2, 55, 78] 3 x [31, 55, 55] 3 x [30, 55, 55] 15 x [12, 61, 72] 9 x [53, 72, 72] 1 x [44, 72, 72] 16 x [12, 51, 66] 18 x [51, 61, 62] 6 x [28, 57, 66] 1 x [19, 28, 57] 16 x [28, 67, 71] 1 x [16] 8 x [16, 62, 75] 5 x [7, 16, 67] 1 x [16, 16, 69] 11 x [46, 61, 65] 1 x [15, 19, 65] 2 x [27, 66, 75] 11 x [24, 75, 78] 9 x [65, 75, 75] 9 x [66, 70, 77] 16 x [2, 33, 66] 14 x [2, 37, 37] 7 x [26, 26, 78]