Gurobi 5.0.1 (linux64) logging started Fri Nov 16 14:30:01 2012

Optimize a model with 23324 rows, 5700 columns and 75298 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.72s
Presolved: 23322 rows, 5698 columns, 74676 nonzeros
Variable types: 0 continuous, 5698 integer (5698 binary)
Found heuristic solution: objective 75.0000000

Root relaxation: objective 2.000000e+00, 4036 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  150   75.00000    2.00000  97.3%     -    1s
H    0     0                      74.0000000    2.00000  97.3%     -    1s
H    0     0                       5.0000000    2.00000  60.0%     -    1s
     0     0    3.00000    0 3844    5.00000    3.00000  40.0%     -   10s
     0     0    3.00000    0  282    5.00000    3.00000  40.0%     -   34s
     0     2    3.00000    0  282    5.00000    3.00000  40.0%     -   51s
     3     5    3.66667    2  429    5.00000    3.00000  40.0% 13322   57s
    22     6     cutoff    3         5.00000    3.66667  26.7%  2376   60s
    36    10     cutoff   10         5.00000    4.00000  20.0%  1986   65s
   166    20    4.00000   14   88    5.00000    4.00000  20.0%   651   73s
   355    21     cutoff   12         5.00000    4.00000  20.0%   359   75s
   893    12     cutoff   16         5.00000    4.00000  20.0%   234   80s

Cutting planes:
  Clique: 142
  Zero half: 7

Explored 966 nodes (298690 simplex iterations) in 82.70 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%