Gurobi 5.0.1 (linux64) logging started Sat Dec  8 02:35:16 2012

Optimize a model with 825 rows, 810 columns and 2948 nonzeros
Presolve removed 122 rows and 37 columns
Presolve time: 0.00s
Presolved: 703 rows, 773 columns, 2680 nonzeros
Variable types: 689 continuous, 84 integer (84 binary)

Root relaxation: objective 2.831618e+04, 114 iterations, 0.00 seconds

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

     0     0 28316.1803    0    2          - 28316.1803     -      -    0s
H    0     0                    28375.000000 28316.1803  0.21%     -    0s
     0     0     cutoff    0      28375.0000 28375.0000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Flow cover: 1

Explored 0 nodes (117 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.837500000000e+04, best bound 2.837500000000e+04, gap 0.0%