Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:53:04 2012

Optimize a model with 6439 rows, 2256 columns and 21385 nonzeros
Presolve time: 0.07s
Presolved: 6439 rows, 2256 columns, 21945 nonzeros
Variable types: 0 continuous, 2256 integer (2256 binary)
Found heuristic solution: objective 26.0000000

Root relaxation: objective 2.000000e+00, 2306 iterations, 0.07 seconds

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

     0     0    2.00000    0   94   26.00000    2.00000  92.3%     -    0s
H    0     0                      10.0000000    2.00000  80.0%     -    0s
H    0     0                       4.0000000    2.00000  50.0%     -    0s
     0     0    2.00000    0   94    4.00000    2.00000  50.0%     -    0s
     0     0    2.00000    0   94    4.00000    2.00000  50.0%     -    2s
     0     0    2.00000    0   94    4.00000    2.00000  50.0%     -    3s
     0     0    2.00000    0   94    4.00000    2.00000  50.0%     -    5s
     0     0    2.00000    0   94    4.00000    2.00000  50.0%     -    6s
     0     0    2.00000    0   94    4.00000    2.00000  50.0%     -    8s
     0     2    2.00000    0   94    4.00000    2.00000  50.0%     -   13s
     1     3    2.50000    1  166    4.00000    2.00000  50.0% 20017   17s
    22     6    3.00000    5  109    4.00000    2.50000  37.5%  1659   20s

Cutting planes:
  Clique: 107

Explored 125 nodes (107052 simplex iterations) in 24.76 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%