Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:50 2013

Optimize a model with 140 rows, 1530 columns and 3540 nonzeros
Presolve removed 10 rows and 10 columns
Presolve time: 0.00s
Presolved: 130 rows, 1520 columns, 3030 nonzeros
Variable types: 1520 continuous, 0 integer (0 binary)

Root relaxation: objective 1.997658e+04, 117 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
*   21     7              11    20163.083084 20155.2090  0.04%   2.7    0s
*   22     4              11    20158.428444 20155.2090  0.02%   2.6    0s

Explored 30 nodes (176 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.015842844375e+04, best bound 2.015842844375e+04, gap 0.0%