Gurobi 5.0.1 (linux64) logging started Fri Jan 18 08:55:04 2013

Optimize a model with 1400 rows, 200300 columns and 500400 nonzeros
Presolve removed 100 rows and 100 columns
Presolve time: 0.41s
Presolved: 1300 rows, 200200 columns, 400300 nonzeros
Variable types: 200200 continuous, 0 integer (0 binary)

Root relaxation: objective 8.570461e+05, 9345 iterations, 1.47 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     -      -    2s
     0     2 857046.104    0    1          - 857046.104     -      -    6s
    13    15 867578.151    7    2          - 858246.035     -    212   10s
    42    44 859858.927   21    1          - 858246.035     -    139   15s
*   73    73              37    895811.73760 858246.035  4.19%   112   18s
*   79    61              40    872121.37626 858246.035  1.59%   105   19s
    90    68 861684.693   45    1 872121.376 858246.035  1.59%  95.7   20s
*  103    47              52    866383.22778 858246.035  0.94%  85.1   20s
   196    70 864694.099   98    1 866383.228 858246.035  0.94%  48.9   25s
   309    79 858354.392    4    1 866383.228 858246.035  0.94%  33.3   30s
   345   105 859155.310   22    1 866383.228 858246.035  0.94%  37.9   35s
*  375    13              37    859250.06193 858246.035  0.12%  37.1   37s
   419    10     cutoff   19      859250.062 858413.538  0.10%  36.0   40s
*  500    11              30    859153.38650 858797.976  0.04%  31.6   42s
*  541    39              52    859021.39949 858915.149  0.01%  29.3   44s

Explored 546 nodes (25216 simplex iterations) in 44.33 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.590213994922e+05, best bound 8.589366879433e+05, gap 0.0099%