Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:16:17 2013

Optimize a model with 280 rows, 4260 columns and 8680 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.01s
Presolved: 260 rows, 4240 columns, 8460 nonzeros
Variable types: 4240 continuous, 0 integer (0 binary)

Root relaxation: objective 4.636776e+04, 395 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
H    0     0                    46832.519780 46367.7551  0.99%     -    0s
     0     2 46367.7551    0    2 46832.5198 46367.7551  0.99%     -    0s
*   11     5               6    46652.929898 46647.6679  0.01%  10.8    0s

Explored 15 nodes (516 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.665292989755e+04, best bound 4.665292989755e+04, gap 0.0%