Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:59 2013

Optimize a model with 280 rows, 4460 columns and 9280 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.01s
Presolved: 260 rows, 4440 columns, 8860 nonzeros
Variable types: 4440 continuous, 0 integer (0 binary)

Root relaxation: objective 3.709539e+04, 368 iterations, 0.01 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
H    0     0                    37291.650431 37095.3933  0.53%     -    0s
     0     2 37095.3933    0    4 37291.6504 37095.3933  0.53%     -    0s
*   16     6               8    37253.378676 37251.0541  0.01%   5.8    0s

Explored 17 nodes (460 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.725337867584e+04, best bound 3.725105406299e+04, gap 0.0062%