Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:09:44 2012

Optimize a model with 11570 rows, 17822 columns and 51868 nonzeros
Presolve removed 35 rows and 4391 columns
Presolve time: 0.20s
Presolved: 11535 rows, 13431 columns, 47305 nonzeros
Variable types: 0 continuous, 13431 integer (13431 binary)
Found heuristic solution: objective 133.0000000

Root relaxation: objective 2.000000e+00, 7506 iterations, 0.24 seconds

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

     0     0    2.00000    0   88  133.00000    2.00000  98.5%     -    0s
H    0     0                      92.0000000    2.00000  97.8%     -    0s
H    0     0                       3.0000000    2.00000  33.3%     -    0s

Cutting planes:
  Zero half: 1

Explored 0 nodes (26855 simplex iterations) in 0.97 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 2.000000000000e+00, gap 33.3333%