Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:08:41 2012

Optimize a model with 22004 rows, 26732 columns and 91930 nonzeros
Presolve removed 34 rows and 5218 columns
Presolve time: 0.48s
Presolved: 21970 rows, 21514 columns, 86444 nonzeros
Variable types: 0 continuous, 21514 integer (21514 binary)
Found heuristic solution: objective 163.0000000

Root relaxation: objective 2.000000e+00, 13154 iterations, 0.51 seconds

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

     0     0    2.00000    0  204  163.00000    2.00000  98.8%     -    2s
H    0     0                     117.0000000    2.00000  98.3%     -    2s
H    0     0                       4.0000000    2.00000  50.0%     -    2s
H    0     0                       3.0000000    2.00000  33.3%     -    2s

Cutting planes:
  Zero half: 2

Explored 0 nodes (46760 simplex iterations) in 2.43 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%