Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:54:36 2012

Optimize a model with 6720 rows, 11130 columns and 30870 nonzeros
Presolve removed 34 rows and 3570 columns
Presolve time: 0.14s
Presolved: 6686 rows, 7560 columns, 27300 nonzeros
Variable types: 0 continuous, 7560 integer (7560 binary)
Found heuristic solution: objective 31.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 6012 iterations, 0.18 seconds

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

     0     0    2.00000    0   60    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   72    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0  149    3.00000    2.00000  33.3%     -    3s
     0     0    2.00000    0  178    3.00000    2.00000  33.3%     -    5s
     0     0    2.00000    0   60    3.00000    2.00000  33.3%     -    9s
     0     0    2.00000    0  136    3.00000    2.00000  33.3%     -   11s
     0     0    2.00000    0  175    3.00000    2.00000  33.3%     -   15s
     0     0    2.00000    0  175    3.00000    2.00000  33.3%     -   16s
     0     2    2.00000    0  175    3.00000    2.00000  33.3%     -   18s
     5     5    2.00000    1  136    3.00000    2.00000  33.3%  1838   22s

Cutting planes:
  Gomory: 3
  Zero half: 25

Explored 6 nodes (156903 simplex iterations) in 22.31 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%