Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:56 2013

Optimize a model with 280 rows, 4460 columns and 9280 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.01s
Presolved: 260 rows, 4440 columns, 8860 nonzeros
Variable types: 4440 continuous, 0 integer (0 binary)

Root relaxation: objective 3.839329e+04, 424 iterations, 0.01 seconds

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

     0     0 38393.2919    0    2          - 38393.2919     -      -    0s
     0     2 38393.2919    0    2          - 38393.2919     -      -    0s
*   21     5              11    38634.658974 38634.5804  0.00%  26.6    0s

Explored 22 nodes (982 simplex iterations) in 0.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.863465897436e+04, best bound 3.863458038171e+04, gap 0.0002%