Gurobi 5.0.1 (linux64) logging started Fri Jan 18 08:57:22 2013

Optimize a model with 1400 rows, 200300 columns and 500400 nonzeros
Presolve removed 100 rows and 100 columns
Presolve time: 0.57s
Presolved: 1300 rows, 200200 columns, 400300 nonzeros
Variable types: 200200 continuous, 0 integer (0 binary)

Root relaxation: objective 7.543716e+05, 9432 iterations, 1.10 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     -      -    2s
     0     2 754371.571    0    4          - 754371.571     -      -    5s
    30    32 758356.544   15    1          - 754769.728     -    189   10s
    78    80 760589.731   39    1          - 754769.728     -    135   15s
   159   161 756465.371   80    1          - 754769.728     -   85.2   20s
   249   251 756702.879  125    1          - 754769.728     -   66.7   25s
   387   389 757148.572  194    1          - 754769.728     -   46.0   30s
*  408   278             204    764951.26858 754769.728  1.33%  44.0   30s
   526   376 757615.650  263    1 764951.269 754769.728  1.33%  34.7   35s
   661   509 757351.744  331    1 764951.269 754769.728  1.33%  28.1   40s
*  673    43             337    757366.34336 754769.728  0.34%  27.6   40s
*  714    12              23    755729.74415 754769.728  0.13%  28.1   42s
*  742    16              37    755679.58081 754769.728  0.12%  27.1   44s
   753    13 755250.498    8    1 755679.581 755172.733  0.07%  27.7   45s

Explored 807 nodes (31855 simplex iterations) in 47.88 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%