Gurobi 5.0.1 (linux64) logging started Fri Jan 18 03:56:58 2013

Optimize a model with 1400 rows, 110300 columns and 230400 nonzeros
Presolve removed 100 rows and 100 columns
Presolve time: 0.28s
Presolved: 1300 rows, 110200 columns, 220300 nonzeros
Variable types: 110200 continuous, 0 integer (0 binary)

Root relaxation: objective 8.570461e+05, 7756 iterations, 1.06 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 857046.104    0    1          - 857046.104     -      -    1s
     0     2 857046.104    0    1          - 857046.104     -      -    2s
     6     8 858414.919    3    2          - 858246.035     -    260    5s
    28    30 859535.988   14    1          - 858246.035     -    192   10s
    57    59 873357.431   29    1          - 858246.035     -    157   15s
*   73    73              37    895811.73760 858246.035  4.19%   139   17s
*   79    61              40    872121.37626 858246.035  1.59%   131   17s
*  103    47              52    866383.22778 858246.035  0.94%   106   19s
   112    44 862386.208   56    1 866383.228 858246.035  0.94%   100   20s
   262    76 865568.498  131    1 866383.228 858246.035  0.94%  46.7   25s
   355    93 858783.781   12    1 866383.228 858246.035  0.94%  41.7   30s
*  399    13              34    859249.95841 858246.035  0.12%  40.7   33s
   405     6     cutoff    4      859249.958 858413.538  0.10%  42.0   35s
*  518    11              27    859153.36485 858797.976  0.04%  35.1   38s
*  550    30              43    859020.80819 858915.149  0.01%  33.2   39s

Explored 555 nodes (26008 simplex iterations) in 39.23 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.590208081901e+05, best bound 8.589366879433e+05, gap 0.0098%