Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:05:34 2012

Optimize a model with 7475 rows, 13340 columns and 35305 nonzeros
Presolve removed 34 rows and 3910 columns
Presolve time: 0.14s
Presolved: 7441 rows, 9430 columns, 31395 nonzeros
Variable types: 0 continuous, 9430 integer (9430 binary)
Found heuristic solution: objective 31.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 6142 iterations, 0.11 seconds

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

     0     0    2.00000    0   18    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0  230    3.00000    2.00000  33.3%     -    1s
     0     0    2.00000    0   18    3.00000    2.00000  33.3%     -    3s
     0     0    2.00000    0   99    3.00000    2.00000  33.3%     -    6s
     0     0    2.00000    0  103    3.00000    2.00000  33.3%     -    8s
     0     0    2.00000    0   99    3.00000    2.00000  33.3%     -   11s
     0     0    2.00000    0  174    3.00000    2.00000  33.3%     -   14s
     0     0    2.00000    0   18    3.00000    2.00000  33.3%     -   18s
     0     0    2.00000    0  103    3.00000    2.00000  33.3%     -   21s
     0     0    2.00000    0  103    3.00000    2.00000  33.3%     -   22s
     0     2    2.00000    0  103    3.00000    2.00000  33.3%     -   24s
     4     4    2.00000    1   18    3.00000    2.00000  33.3%  2198   25s
     6     6    2.00000    1  118    3.00000    2.00000  33.3%  1466   30s

Cutting planes:
  Gomory: 1
  Zero half: 3

Explored 7 nodes (227007 simplex iterations) in 30.38 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%