Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:50:46 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 3.894400e+04, 377 iterations, 0.01 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
*   51     9              26    39365.096396 39207.7362  0.40%  14.9    0s
*   68     6               9    39247.130682 39247.1307   0.0%  12.2    0s

Explored 69 nodes (1210 simplex iterations) in 0.18 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.924713068171e+04, best bound 3.924713068171e+04, gap 0.0%