Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:34:00 2012

Optimize a model with 11609 rows, 16770 columns and 50953 nonzeros
Presolve removed 35 rows and 4259 columns
Presolve time: 0.20s
Presolved: 11574 rows, 12511 columns, 46516 nonzeros
Variable types: 0 continuous, 12511 integer (12511 binary)
Found heuristic solution: objective 129.0000000

Root relaxation: objective 2.000000e+00, 8155 iterations, 0.29 seconds

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

     0     0    2.00000    0  138  129.00000    2.00000  98.4%     -    1s
H    0     0                       3.0000000    2.00000  33.3%     -    1s
     0     0 infeasible    0         3.00000    2.00000  33.3%     -    1s

Cutting planes:
  Gomory: 1
  Zero half: 4

Explored 0 nodes (28180 simplex iterations) in 1.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%