Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:50:42 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 4.636776e+04, 443 iterations, 0.01 seconds

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

     0     0 46367.7551    0    2          - 46367.7551     -      -    0s
     0     2 46367.7551    0    2          - 46367.7551     -      -    0s
*   20     8              10    46653.827166 46653.6050  0.00%  18.0    0s

Explored 21 nodes (803 simplex iterations) in 0.15 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.665382716636e+04, best bound 4.665360495326e+04, gap 0.0005%