Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:40:44 2013

Optimize a model with 140 rows, 6030 columns and 17040 nonzeros
Presolve removed 10 rows and 10 columns
Presolve time: 0.01s
Presolved: 130 rows, 6020 columns, 12030 nonzeros
Variable types: 6020 continuous, 0 integer (0 binary)

Root relaxation: objective 1.997658e+04, 91 iterations, 0.00 seconds

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

     0     0 19976.5790    0    2          - 19976.5790     -      -    0s
     0     2 19976.5790    0    2          - 19976.5790     -      -    0s
*   36     6              18    20158.452861 20156.4931  0.01%   2.5    0s

Explored 37 nodes (181 simplex iterations) in 0.12 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.015845286066e+04, best bound 2.015649308094e+04, gap 0.0097%