Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:48:29 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 4.013975e+04, 391 iterations, 0.02 seconds

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

     0     0 40139.7487    0    2          - 40139.7487     -      -    0s
     0     2 40139.7487    0    2          - 40139.7487     -      -    0s
*   39     5              20    40195.186210 40195.1862  0.00%  20.1    0s

Explored 40 nodes (1173 simplex iterations) in 0.55 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.019518621046e+04, best bound 4.019518616787e+04, gap 0.0000%