Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:50:44 2013

Optimize a model with 280 rows, 6060 columns and 14080 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.01s
Presolved: 260 rows, 6040 columns, 12060 nonzeros
Variable types: 6040 continuous, 0 integer (0 binary)

Root relaxation: objective 4.370285e+04, 507 iterations, 0.01 seconds

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

     0     0 43702.8549    0    2          - 43702.8549     -      -    0s
     0     2 43702.8549    0    2          - 43702.8549     -      -    0s
*   31    27              16    44402.869662 43852.1529  1.24%   9.3    0s
*   50    16              10    44051.540036 43878.1255  0.39%   8.5    0s
*   69     8              11    43900.865943 43896.9453  0.01%   7.3    0s

Explored 70 nodes (1009 simplex iterations) in 0.20 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.390086594259e+04, best bound 4.389694531587e+04, gap 0.0089%