Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:18:07 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 3.709539e+04, 407 iterations, 0.02 seconds

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

     0     0 37095.3933    0    4          - 37095.3933     -      -    0s
     0     2 37095.3933    0    4          - 37095.3933     -      -    0s
*   14     6               7    37269.725700 37252.7045  0.05%  23.5    0s
*   24     8              12    37253.494793 37252.7045  0.00%  14.8    0s

Explored 25 nodes (762 simplex iterations) in 0.17 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.725349479311e+04, best bound 3.725270454517e+04, gap 0.0021%