Gurobi 5.0.1 (linux64) logging started Fri Jan 18 03:24:45 2013 Optimize a model with 2800 rows, 126500 columns and 401500 nonzeros Presolve removed 100 rows and 5700 columns Presolve time: 0.66s Presolved: 2700 rows, 120800 columns, 381500 nonzeros Variable types: 120100 continuous, 700 integer (700 binary) Root relaxation: objective 7.918217e+05, 6265 iterations, 0.72 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 791821.709 0 8 - 791821.709 - - 1s 0 0 791880.595 0 8 - 791880.595 - - 2s 0 0 791888.531 0 8 - 791888.531 - - 3s 0 0 791890.517 0 8 - 791890.517 - - 4s 0 0 791895.677 0 8 - 791895.677 - - 4s 0 0 791895.719 0 8 - 791895.719 - - 4s 0 0 791899.004 0 8 - 791899.004 - - 5s 0 0 791899.342 0 8 - 791899.342 - - 5s 0 0 791900.049 0 8 - 791900.049 - - 6s 0 0 791900.259 0 8 - 791900.259 - - 6s 0 0 791901.179 0 8 - 791901.179 - - 7s 0 0 791901.624 0 8 - 791901.624 - - 7s 0 0 791902.433 0 8 - 791902.433 - - 8s 0 0 791902.474 0 8 - 791902.474 - - 8s 0 0 791903.087 0 8 - 791903.087 - - 8s 0 0 791904.169 0 8 - 791904.169 - - 9s 0 0 791904.178 0 8 - 791904.178 - - 9s 0 0 791904.286 0 8 - 791904.286 - - 10s 0 0 791904.300 0 8 - 791904.300 - - 10s 0 0 791904.499 0 8 - 791904.499 - - 10s 0 0 791904.499 0 8 - 791904.499 - - 12s H 0 0 805505.35161 791904.499 1.69% - 13s 0 2 791904.499 0 8 805505.352 791904.499 1.69% - 14s 4 6 792581.158 4 4 805505.352 792512.794 1.61% 215 15s 24 26 792897.667 23 5 805505.352 792512.794 1.61% 62.9 20s 40 41 793336.833 38 4 805505.352 792512.794 1.61% 58.2 25s 54 53 794174.347 52 6 805505.352 792512.794 1.61% 56.4 30s 65 56 794787.329 63 4 805505.352 792512.794 1.61% 54.9 35s H 81 63 801765.27344 792512.794 1.15% 46.5 40s 103 76 795571.337 99 4 801765.273 792512.794 1.15% 40.1 45s H 108 59 795583.65574 792512.794 0.39% 38.4 46s H 135 42 793711.35126 792537.810 0.15% 37.2 48s 138 45 793374.018 20 4 793711.351 792537.810 0.15% 37.8 50s * 256 138 137 793547.93880 792537.810 0.13% 22.2 52s 343 200 793479.521 49 4 793547.939 792576.606 0.12% 19.5 55s * 386 42 16 793357.35859 792594.923 0.10% 19.5 56s 522 147 792909.017 8 4 793357.359 792646.170 0.09% 16.5 60s 601 164 793290.473 75 8 793357.359 792825.242 0.07% 19.7 66s 607 168 793345.688 123 15 793357.359 792825.242 0.07% 19.5 70s 611 171 793251.486 41 15 793357.359 792825.242 0.07% 19.4 75s 618 173 792825.242 14 7 793357.359 792825.242 0.07% 37.9 80s 635 168 793054.668 18 7 793357.359 792873.522 0.06% 38.4 85s * 645 153 18 793200.24980 793058.786 0.02% 38.8 88s Cutting planes: Gomory: 2 Flow cover: 13 Explored 650 nodes (37034 simplex iterations) in 89.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.932002498024e+05, best bound 7.931722854445e+05, gap 0.0035%