Build (method = -2) #dp: 17100 Step-3' Graph: 5522 vertices and 16559 arcs (0.71s) Step-4' Graph: 212 vertices and 5939 arcs (0.74s) #V4/#V3 = 0.04 #A4/#A3 = 0.36 Ready! (0.74s) Optimize a model with 356 rows, 5940 columns and 17400 nonzeros Presolve removed 4 rows and 64 columns Presolve time: 0.09s Presolved: 352 rows, 5876 columns, 17270 nonzeros Variable types: 0 continuous, 5876 integer (0 binary) Optimize a model with 352 rows, 5876 columns and 17270 nonzeros Presolved: 352 rows, 5876 columns, 17270 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 8.958e+03 Factor NZ : 1.931e+04 (roughly 3 MBytes of memory) Factor Ops : 1.575e+06 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.81681615e+10 -5.10439515e+10 4.29e+11 2.22e-16 6.49e+07 0s 1 4.14850221e+09 -1.37015802e+10 6.71e+10 7.66e-03 1.06e+07 0s 2 5.00207147e+08 -3.60807350e+09 5.02e+09 2.91e-14 9.94e+05 0s 3 2.12233815e+08 -1.26134919e+09 8.78e+08 4.00e-15 2.09e+05 0s 4 1.34516608e+08 -5.00567945e+08 1.81e+08 2.22e-14 6.76e+04 0s 5 1.08204610e+08 -2.01895792e+08 6.34e+07 1.97e-14 3.02e+04 0s 6 9.75649035e+07 -8.81217634e+06 3.69e+07 1.25e-14 1.07e+04 0s 7 8.89650204e+07 3.45417266e+07 5.08e+06 1.01e-14 4.77e+03 0s 8 8.56231057e+07 6.31320671e+07 2.39e+05 1.05e-14 1.90e+03 0s 9 8.42774887e+07 7.83202883e+07 6.36e+04 9.95e-15 5.02e+02 0s 10 8.34211481e+07 8.17071563e+07 1.79e+04 1.15e-14 1.45e+02 0s 11 8.32710495e+07 8.23570048e+07 1.09e+04 1.31e-14 7.71e+01 0s 12 8.31267908e+07 8.27077911e+07 4.81e+03 1.30e-14 3.53e+01 0s 13 8.30620966e+07 8.28607907e+07 2.28e+03 1.28e-14 1.70e+01 0s 14 8.30255293e+07 8.29457624e+07 9.11e+02 1.25e-14 6.73e+00 0s 15 8.30017903e+07 8.29894400e+07 1.65e+01 9.99e-15 1.04e+00 0s 16 8.30000403e+07 8.29997634e+07 7.13e-07 7.15e-11 2.33e-02 0s 17 8.30000000e+07 8.29999998e+07 1.12e-08 3.58e-11 2.33e-05 0s Barrier solved model in 17 iterations and 0.11 seconds Optimal objective 8.30000000e+07 Warning: Markowitz tolerance tightened to 0.5 Root relaxation: objective 8.300000e+07, 5790 iterations, 0.18 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 8.300000e+07 8.3000e+07 0.0% - 0s Explored 0 nodes (6421 simplex iterations) in 0.48 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 8.300000000000e+07, best bound 8.300000000000e+07, gap 0.0% Preprocessing time: 0.77 seconds Gurobi run time: 0.48 seconds Total run time: 1.25 seconds Objective: 83000000 Solution: 1000000 x [1, 142, 144] 500000 x [2, 140, 144] 500000 x [2, 141, 143] 1000000 x [3, 139, 144] 1000000 x [3, 141, 142] 1000000 x [4, 140, 141] 1000000 x [5, 138, 140] 1000000 x [6, 136, 139] 1000000 x [7, 130, 140] 1000000 x [8, 133, 136] 1000000 x [9, 130, 138] 1000000 x [10, 127, 138] 1000000 x [11, 122, 143] 500000 x [11, 124, 141] 500000 x [11, 131, 133] 1000000 x [12, 125, 136] 1000000 x [13, 129, 130] 500000 x [14, 119, 140] 500000 x [14, 127, 131] 500000 x [15, 118, 138] 1500000 x [15, 127, 128] 1000000 x [16, 112, 144] 1000000 x [17, 118, 134] 1000000 x [18, 119, 131] 500000 x [19, 118, 131] 500000 x [19, 119, 130] 500000 x [20, 111, 136] 500000 x [20, 116, 131] 500000 x [21, 109, 135] 500000 x [21, 111, 133] 1000000 x [22, 104, 140] 1000000 x [22, 108, 134] 1000000 x [23, 100, 140] 1000000 x [23, 117, 122] 1000000 x [24, 104, 135] 500000 x [25, 105, 133] 500000 x [25, 116, 121] 1000000 x [26, 117, 119] 1000000 x [27, 111, 122] 1000000 x [28, 109, 123] 1000000 x [29, 95, 137] 1000000 x [30, 106, 124] 1000000 x [31, 107, 122] 1000000 x [31, 110, 118] 1000000 x [32, 100, 127] 1000000 x [33, 101, 125] 500000 x [34, 94, 133] 500000 x [34, 104, 121] 1000000 x [34, 111, 113] 1000000 x [35, 93, 133] 1000000 x [36, 107, 116] 1000000 x [37, 85, 144] 500000 x [38, 94, 126] 500000 x [38, 104, 115] 1000000 x [39, 97, 121] 1000000 x [40, 87, 131] 1000000 x [41, 81, 143] 1000000 x [42, 98, 114] 1000000 x [43, 79, 142] 1000000 x [44, 77, 144] 1000000 x [44, 82, 137] 1000000 x [44, 83, 136] 1000000 x [45, 100, 107] 1000000 x [46, 102, 105] 1000000 x [46, 103, 104] 500000 x [47, 75, 144] 1500000 x [47, 95, 109] 1000000 x [48, 96, 105] 500000 x [49, 75, 138] 500000 x [49, 95, 105] 1000000 x [50, 88, 109] 500000 x [51, 70, 143] 500000 x [51, 75, 130] 1000000 x [52, 80, 120] 1000000 x [53, 76, 124] 1000000 x [53, 89, 102] 1000000 x [54, 69, 140] 1000000 x [55, 90, 99] 1000000 x [55, 93, 96] 1000000 x [56, 71, 131] 1000000 x [57, 64, 141] 1000000 x [57, 67, 136] 1000000 x [57, 74, 119] 1000000 x [57, 84, 104] 500000 x [58, 66, 136] 500000 x [58, 72, 126] 1000000 x [58, 91, 92] 1500000 x [59, 66, 135] 500000 x [59, 70, 128] 1000000 x [60, 71, 125] 500000 x [61, 72, 124] 500000 x [61, 75, 115] 1000000 x [62, 68, 128] 1000000 x [63, 65, 132] 1000000 x [64, 86, 87] 1000000 x [73, 78, 84]