Gurobi 5.0.1 (linux64) logging started Wed Dec 19 14:01:10 2012

Optimize a model with 902 rows, 840 columns and 3680 nonzeros
Presolve removed 99 rows and 40 columns
Presolve time: 0.02s
Presolved: 803 rows, 800 columns, 3482 nonzeros
Variable types: 380 continuous, 420 integer (420 binary)

Root relaxation: objective 2.269814e+02, 951 iterations, 0.02 seconds

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

     0     0  226.98139    0   40          -  226.98139     -      -    0s
     0     0  272.96388    0   29          -  272.96388     -      -    0s
     0     0  277.80904    0   32          -  277.80904     -      -    0s
     0     0  278.70281    0   35          -  278.70281     -      -    0s
H    0     0                     286.0000000  278.70281  2.55%     -    0s
     0     0  282.68942    0   15  286.00000  282.68942  1.16%     -    0s
     0     0  282.68942    0   17  286.00000  282.68942  1.16%     -    0s
     0     0  282.68942    0   20  286.00000  282.68942  1.16%     -    0s
     0     0     cutoff    0       286.00000  285.00029  0.35%     -    0s

Cutting planes:
  Gomory: 2
  Cover: 8
  Flow cover: 10
  GUB cover: 2

Explored 0 nodes (1788 simplex iterations) in 0.12 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.860000000000e+02, best bound 2.860000000000e+02, gap 0.0%