Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:08:52 2013

Optimize a model with 28 rows, 2046 columns and 6088 nonzeros
Presolve removed 22 rows and 30 columns
Presolve time: 0.01s
Presolved: 6 rows, 2016 columns, 4030 nonzeros
Variable types: 2016 continuous, 0 integer (0 binary)

Root relaxation: objective 7.659086e+03, 6 iterations, 0.00 seconds

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

     0     0 7659.08578    0    1          - 7659.08578     -      -    0s
     0     2 7659.08578    0    1          - 7659.08578     -      -    0s
*   19     3              10    7664.6454486 7664.64535  0.00%   1.1    0s

Explored 20 nodes (27 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.664645448649e+03, best bound 7.664645354950e+03, gap 0.0000%