Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:18:08 2013

Optimize a model with 280 rows, 8060 columns and 20080 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.01s
Presolved: 260 rows, 8040 columns, 16060 nonzeros
Variable types: 8040 continuous, 0 integer (0 binary)

Root relaxation: objective 3.894400e+04, 357 iterations, 0.02 seconds

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

     0     0 38944.0027    0    2          - 38944.0027     -      -    0s
     0     2 38944.0027    0    2          - 38944.0027     -      -    0s
*   24     6              12    39247.135892 39247.1359   0.0%  14.0    0s

Explored 25 nodes (692 simplex iterations) in 0.25 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.924713589172e+04, best bound 3.924713589172e+04, gap 0.0%