Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:06 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 2.723938e+04, 1335 iterations, 0.12 seconds

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

     0     0 27239.3809    0   20          - 27239.3809     -      -    0s
H    0     0                    28682.000000 27239.3809  5.03%     -    0s
     0     0 28540.6800    0    1 28682.0000 28540.6800  0.49%     -    0s
H    0     0                    28549.000000 28540.6800  0.03%     -    0s
H    0     0                    28544.000000 28540.6800  0.01%     -    0s
H    0     0                    28541.000000 28540.6800  0.00%     -    0s

Cutting planes:
  Gomory: 1
  Implied bound: 17

Explored 0 nodes (1647 simplex iterations) in 0.36 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.854100000000e+04, best bound 2.854068000000e+04, gap 0.0011%