Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:48:31 2013

Optimize a model with 280 rows, 24060 columns and 68080 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.05s
Presolved: 260 rows, 24040 columns, 48060 nonzeros
Variable types: 24040 continuous, 0 integer (0 binary)

Root relaxation: objective 3.894400e+04, 403 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
*   27     5              14    39247.138434 39247.1382  0.00%  16.0    0s

Explored 28 nodes (836 simplex iterations) in 0.61 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.924713843363e+04, best bound 3.924713820038e+04, gap 0.0000%