Build (method = -2) #dp: 5424 Step-3' Graph: 97 vertices and 3328 arcs (0.02s) Step-4' Graph: 91 vertices and 3316 arcs (0.02s) #V4/#V3 = 0.94 #A4/#A3 = 1.00 Ready! (0.02s) Optimize a model with 211 rows, 3317 columns and 9773 nonzeros Presolve removed 37 rows and 37 columns Presolve time: 0.04s Presolved: 174 rows, 3280 columns, 9526 nonzeros Variable types: 0 continuous, 3280 integer (3112 binary) Optimize a model with 174 rows, 3280 columns and 9526 nonzeros Presolved: 174 rows, 3280 columns, 9526 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 4.710e+03 Factor NZ : 8.472e+03 (roughly 1 MByte of memory) Factor Ops : 5.816e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.91362507e+03 -1.53330000e+03 1.25e+04 0.00e+00 1.70e+00 0s 1 7.53347864e+02 -2.73584511e+02 2.55e+03 3.33e-16 3.60e-01 0s 2 1.46588486e+02 -7.58831597e+00 2.80e+02 2.43e-16 4.53e-02 0s 3 5.94942143e+01 2.72014680e+01 3.67e+01 2.22e-16 7.60e-03 0s 4 5.24157081e+01 4.11328837e+01 1.23e+01 2.56e-16 2.43e-03 0s 5 5.01823755e+01 4.58920229e+01 4.11e+00 9.10e-06 8.28e-04 0s 6 4.93579536e+01 4.75190736e+01 1.23e+00 2.22e-16 3.18e-04 0s 7 4.90147314e+01 4.80947469e+01 4.22e-01 2.27e-16 1.51e-04 0s 8 4.87980260e+01 4.82852903e+01 5.89e-02 2.86e-16 7.96e-05 0s 9 4.87418762e+01 4.84640209e+01 2.44e-02 2.48e-16 4.29e-05 0s 10 4.86978344e+01 4.85504808e+01 8.56e-03 2.22e-16 2.27e-05 0s 11 4.86820396e+01 4.85888036e+01 3.40e-03 4.44e-16 1.43e-05 0s 12 4.86714137e+01 4.86438601e+01 6.66e-04 2.19e-16 4.22e-06 0s 13 4.86612612e+01 4.86569806e+01 6.02e-05 3.33e-16 6.55e-07 0s 14 4.86599004e+01 4.86598512e+01 5.38e-07 1.97e-16 7.52e-09 0s 15 4.86598639e+01 4.86598639e+01 2.55e-12 3.65e-16 2.84e-14 0s Barrier solved model in 15 iterations and 0.03 seconds Optimal objective 4.86598639e+01 Root relaxation: objective 4.865986e+01, 559 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 48.65986 0 30 - 48.65986 - - 0s H 0 0 50.0000000 48.65986 2.68% - 0s H 0 0 49.0000000 48.65986 0.69% - 0s Explored 0 nodes (1484 simplex iterations) in 0.22 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 4.900000000000e+01, best bound 4.900000000000e+01, gap 0.0% Preprocessing time: 0.04 seconds Gurobi run time: 0.22 seconds Total run time: 0.26 seconds Objective: 49 Solution: 1 x [61, 70] 1 x [40, 120] 1 x [33, 98] 1 x [20, 88] 1 x [39, 63] 1 x [47, 83, 93] 1 x [31, 87] 1 x [2, 84] 1 x [14, 78, 89] 1 x [103, 117] 1 x [16, 72] 1 x [17, 43] 1 x [66, 77] 1 x [11, 12, 104] 1 x [3, 94] 1 x [82, 85] 1 x [50, 59] 1 x [22, 76] 1 x [36, 81] 1 x [10, 24] 1 x [18, 52] 1 x [56, 109] 1 x [49, 105] 1 x [21, 114] 1 x [60, 112] 1 x [107, 110, 111] 1 x [30, 79] 1 x [29, 90] 1 x [38, 44, 57] 1 x [19, 23, 25] 1 x [6, 35] 1 x [62, 99] 1 x [58, 67, 73] 1 x [32, 86, 102] 1 x [74, 92, 101] 1 x [9, 37, 64] 1 x [5, 45, 96] 1 x [34, 41, 55] 1 x [27, 46, 118] 1 x [7, 8, 100] 1 x [75, 91, 119] 1 x [42, 54, 108] 1 x [48, 95, 115] 1 x [1, 69, 116] 1 x [15, 97] 1 x [53, 71, 113] 1 x [28, 68, 80] 1 x [4, 13, 26] 1 x [51, 65, 106]