Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:52:37 2012

Optimize a model with 6656 rows, 10920 columns and 30472 nonzeros
Presolve removed 31 rows and 3224 columns
Presolve time: 0.14s
Presolved: 6625 rows, 7696 columns, 27248 nonzeros
Variable types: 0 continuous, 7696 integer (7696 binary)
Found heuristic solution: objective 30.0000000

Root relaxation: objective 2.000000e+00, 7454 iterations, 0.44 seconds

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

     0     0    2.00000    0   82   30.00000    2.00000  93.3%     -    1s
H    0     0                       3.0000000    2.00000  33.3%     -    1s
     0     0    2.00000    0   82    3.00000    2.00000  33.3%     -    2s
     0     0    2.00000    0  155    3.00000    2.00000  33.3%     -    5s
     0     0    2.00000    0  159    3.00000    2.00000  33.3%     -    7s
     0     0    2.00000    0  190    3.00000    2.00000  33.3%     -    9s
     0     0    2.00000    0  190    3.00000    2.00000  33.3%     -   12s
     0     0    2.00000    0  190    3.00000    2.00000  33.3%     -   13s
     0     2    2.00000    0  190    3.00000    2.00000  33.3%     -   16s
     5     5    2.00000    1  153    3.00000    2.00000  33.3%  2090   21s
     6     6    2.00000    1   82    3.00000    2.00000  33.3%  1742   25s
     8     7    2.00000    1  353    3.00000    2.00000  33.3%  1306   40s
    11     9 infeasible   13         3.00000    2.00000  33.3% 11011   45s

Cutting planes:
  Gomory: 10

Explored 13 nodes (221431 simplex iterations) in 45.43 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%