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 3.839329e+04, 389 iterations, 0.01 seconds

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

     0     0 38393.2919    0    2          - 38393.2919     -      -    0s
     0     2 38393.2919    0    2          - 38393.2919     -      -    0s
*   20     6              10    38634.233867 38634.2339   0.0%  29.4    0s

Explored 21 nodes (978 simplex iterations) in 0.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.863423386685e+04, best bound 3.863423386685e+04, gap 0.0%