Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:29:34 2012

Optimize a model with 11481 rows, 16770 columns and 50697 nonzeros
Presolve removed 29 rows and 3741 columns
Presolve time: 0.20s
Presolved: 11452 rows, 13029 columns, 46956 nonzeros
Variable types: 0 continuous, 13029 integer (13029 binary)
Found heuristic solution: objective 40.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 11930 iterations, 0.73 seconds

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

     0     0    2.00000    0  126    3.00000    2.00000  33.3%     -    3s
     0     0    2.00000    0  333    3.00000    2.00000  33.3%     -    6s
     0     0    2.00000    0  235    3.00000    2.00000  33.3%     -   13s
     0     0    2.00000    0  225    3.00000    2.00000  33.3%     -   21s
     0     0    2.00000    0  266    3.00000    2.00000  33.3%     -   27s
     0     0    2.00000    0  126    3.00000    2.00000  33.3%     -   29s
     0     0    2.00000    0  227    3.00000    2.00000  33.3%     -   32s
     0     0    2.00000    0  229    3.00000    2.00000  33.3%     -   38s
     0     0    2.00000    0  126    3.00000    2.00000  33.3%     -   48s
     0     0    2.00000    0  229    3.00000    2.00000  33.3%     -   55s
     0     0    2.00000    0  229    3.00000    2.00000  33.3%     -   61s
     0     2    2.00000    0  229    3.00000    2.00000  33.3%     -   75s
     5     5    2.00000    1  126    3.00000    2.00000  33.3%  3692   85s
     6     6    2.00000    1  230    3.00000    2.00000  33.3%  3077  104s

Cutting planes:
  Gomory: 1
  Zero half: 1

Explored 6 nodes (338657 simplex iterations) in 104.31 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%