Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:08 2013

Optimize a model with 7614 rows, 7344 columns and 29214 nonzeros
Presolve removed 27 rows and 0 columns
Presolve time: 0.03s
Presolved: 7587 rows, 7344 columns, 29187 nonzeros
Variable types: 7317 continuous, 27 integer (27 binary)

Root relaxation: objective 2.605993e+04, 1090 iterations, 0.08 seconds

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

     0     0 26059.9302    0   21          - 26059.9302     -      -    0s
H    0     0                    29078.000000 26059.9302  10.4%     -    0s
     0     0 28281.4734    0    4 29078.0000 28281.4734  2.74%     -    0s
H    0     0                    28969.000000 28281.4734  2.37%     -    0s
H    0     0                    28309.000000 28281.4734  0.10%     -    0s
     0     0 28284.3636    0    1 28309.0000 28284.3636  0.09%     -    0s

Cutting planes:
  Implied bound: 19

Explored 0 nodes (1487 simplex iterations) in 0.37 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.830900000000e+04, best bound 2.830900000000e+04, gap 0.0%