Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:15:37 2013

Optimize a model with 28 rows, 66 columns and 148 nonzeros
Presolve removed 22 rows and 27 columns
Presolve time: 0.00s
Presolved: 6 rows, 39 columns, 76 nonzeros
Variable types: 39 continuous, 0 integer (0 binary)

Root relaxation: objective 5.281733e+03, 4 iterations, 0.00 seconds

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

     0     0 5281.73269    0    1          - 5281.73269     -      -    0s
H    0     0                    5296.0886069 5281.73269  0.27%     -    0s
     0     2 5281.73269    0    1 5296.08861 5281.73269  0.27%     -    0s

Explored 5 nodes (6 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.296088606917e+03, best bound 5.295655215278e+03, gap 0.0082%