Gurobi 5.0.1 (linux64) logging started Fri Jan 18 03:19:21 2013 Optimize a model with 2800 rows, 126500 columns and 401500 nonzeros Presolve removed 100 rows and 5700 columns Presolve time: 0.58s Presolved: 2700 rows, 120800 columns, 381500 nonzeros Variable types: 120100 continuous, 700 integer (700 binary) Root relaxation: objective 9.481640e+05, 7193 iterations, 0.82 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 948163.962 0 16 - 948163.962 - - 1s 0 0 948240.878 0 16 - 948240.878 - - 2s 0 0 948269.279 0 15 - 948269.279 - - 2s 0 0 948295.694 0 16 - 948295.694 - - 3s 0 0 948300.714 0 16 - 948300.714 - - 3s 0 0 948302.230 0 16 - 948302.230 - - 4s 0 0 948304.976 0 16 - 948304.976 - - 4s 0 0 948305.130 0 16 - 948305.130 - - 4s 0 0 948307.394 0 16 - 948307.394 - - 5s 0 0 948307.982 0 16 - 948307.982 - - 5s 0 0 948308.885 0 16 - 948308.885 - - 6s 0 0 948309.391 0 16 - 948309.391 - - 6s 0 0 948309.391 0 16 - 948309.391 - - 10s 0 2 948310.607 0 16 - 948310.607 - - 15s 14 16 948710.906 13 10 - 948427.538 - 148 20s 33 35 949694.872 29 8 - 948427.538 - 126 25s 49 51 950342.204 45 11 - 948427.538 - 117 31s 64 66 950710.369 60 13 - 948427.538 - 101 35s 94 96 951239.212 90 6 - 948427.538 - 81.3 40s 119 121 951376.340 115 4 - 948427.538 - 69.2 45s 166 168 951864.269 162 4 - 948427.538 - 55.1 50s 211 213 952546.979 207 1 - 948427.538 - 44.8 55s * 261 245 254 957880.05235 948427.538 0.99% 37.6 58s 278 248 949159.784 11 6 957880.052 948438.160 0.99% 39.5 60s H 291 72 950648.18317 948438.160 0.23% 41.9 62s 307 75 950379.175 36 4 950648.183 948438.160 0.23% 40.9 65s H 318 75 950610.25871 948438.160 0.23% 40.2 66s * 330 83 55 950603.99644 948438.160 0.23% 39.3 66s * 333 81 55 950603.51943 948438.160 0.23% 39.0 67s 352 96 950425.828 17 12 950603.519 948455.898 0.23% 44.8 70s 385 97 cutoff 4 950603.519 948768.801 0.19% 53.7 75s * 425 78 40 950276.23626 948980.301 0.14% 60.2 79s 426 77 cutoff 39 950276.236 948980.301 0.14% 60.1 80s 538 146 cutoff 11 950276.236 949116.926 0.12% 55.2 85s 603 151 949849.502 23 16 950276.236 949451.802 0.09% 56.6 90s 609 155 949664.926 27 33 950276.236 949451.802 0.09% 56.0 95s 610 156 949788.533 33 33 950276.236 949451.802 0.09% 55.9 103s 613 159 949451.802 12 21 950276.236 949451.802 0.09% 71.4 108s 614 158 949451.802 12 21 950276.236 949451.802 0.09% 72.1 112s 620 157 949451.802 17 4 950276.236 949451.802 0.09% 72.7 115s 659 148 950035.788 50 4 950276.236 949451.802 0.09% 70.1 120s 696 139 cutoff 17 950276.236 949460.002 0.09% 72.0 125s 723 127 949836.398 27 4 950276.236 949785.213 0.05% 71.6 130s Cutting planes: Gomory: 6 Flow cover: 25 Explored 778 nodes (63469 simplex iterations) in 134.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.502762362556e+05, best bound 9.501865568427e+05, gap 0.0094%