Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:00:36 2012

Optimize a model with 6105 rows, 12432 columns and 30303 nonzeros
Presolve removed 43 rows and 4773 columns
Presolve time: 0.13s
Presolved: 6062 rows, 7659 columns, 25530 nonzeros
Variable types: 0 continuous, 7659 integer (7659 binary)
Found heuristic solution: objective 30.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 4993 iterations, 0.12 seconds

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

     0     0    2.00000    0   34    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0  119    3.00000    2.00000  33.3%     -    1s
     0     0    2.00000    0  103    3.00000    2.00000  33.3%     -    3s
     0     0    2.00000    0  105    3.00000    2.00000  33.3%     -    4s
     0     0    2.00000    0  103    3.00000    2.00000  33.3%     -    6s
     0     0    2.00000    0  105    3.00000    2.00000  33.3%     -    8s
     0     0    2.00000    0  105    3.00000    2.00000  33.3%     -   10s
     0     0    2.00000    0  261    3.00000    2.00000  33.3%     -   12s
     0     0    2.00000    0  261    3.00000    2.00000  33.3%     -   13s
     0     2    2.00000    0  156    3.00000    2.00000  33.3%     -   15s
     6     6    2.00000    1   34    3.00000    2.00000  33.3%  1674   20s
     8     7    2.00000    1   34    3.00000    2.00000  33.3%  1256   27s

Cutting planes:
  Gomory: 3
  Zero half: 5

Explored 13 nodes (223238 simplex iterations) in 28.73 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%