Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:53:59 2013

Optimize a model with 280 rows, 14060 columns and 38080 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.04s
Presolved: 260 rows, 14040 columns, 28060 nonzeros
Variable types: 14040 continuous, 0 integer (0 binary)

Root relaxation: objective 4.636776e+04, 507 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
*   23     7              12    46653.828005 46653.6050  0.00%  15.3    0s

Explored 24 nodes (858 simplex iterations) in 0.27 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.665382800523e+04, best bound 4.665360495326e+04, gap 0.0005%