Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:22:17 2013

Optimize a model with 1400 rows, 120300 columns and 260400 nonzeros
Presolve removed 100 rows and 100 columns
Presolve time: 0.24s
Presolved: 1300 rows, 120200 columns, 240300 nonzeros
Variable types: 120200 continuous, 0 integer (0 binary)

Root relaxation: objective 7.543716e+05, 7933 iterations, 0.63 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
    12    14 755874.966    6    1          - 754769.728     -    267    5s
    52    54 764716.192   26    1          - 754769.728     -    192   10s
   120   122 759123.489   60    1          - 754769.728     -    116   15s
   209   211 756591.621  105    1          - 754769.728     -   80.7   20s
*  294   122             147    760176.43528 754769.728  0.71%  61.0   22s
   400   164 759636.174  200    1 760176.435 754769.728  0.71%  45.4   25s
*  428    48             214    757425.00725 754769.728  0.35%  42.6   25s
*  480    12              23    755729.74415 754769.728  0.13%  40.7   27s
*  504    16              35    755679.58081 754769.728  0.12%  38.9   28s
   534    12 755550.481    9    2 755679.581 755316.076  0.05%  39.7   30s

Explored 569 nodes (30312 simplex iterations) in 31.27 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%