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

Optimize a model with 1400 rows, 110300 columns and 230400 nonzeros
Presolve removed 100 rows and 100 columns
Presolve time: 0.27s
Presolved: 1300 rows, 110200 columns, 220300 nonzeros
Variable types: 110200 continuous, 0 integer (0 binary)

Root relaxation: objective 7.543716e+05, 7118 iterations, 0.72 seconds

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

     0     0 754371.571    0    4          - 754371.571     -      -    1s
     0     2 754371.571    0    4          - 754371.571     -      -    2s
    10    12 755316.076    5    1          - 754769.728     -    300    5s
    46    48 771342.591   23    1          - 754769.728     -    201   10s
   104   106 767958.361   52    1          - 754769.728     -    132   15s
   198   200 757616.420   99    1          - 754769.728     -   85.3   20s
*  282   124             141    760176.43528 754769.728  0.71%  65.2   22s
*  364    34             182    757093.53356 754769.728  0.31%  51.0   24s
   382    28     cutoff  191      757093.534 754769.728  0.31%  48.6   25s
*  426    12              23    755729.74415 754769.728  0.13%  46.6   26s
*  446    16              33    755679.58081 754769.728  0.12%  44.6   27s
   490    10     cutoff   10      755679.581 755316.076  0.05%  46.1   30s

Explored 511 nodes (29923 simplex iterations) in 30.49 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.556795808113e+05, best bound 7.556447027981e+05, gap 0.0046%