Gurobi 5.0.1 (linux64) logging started Fri Nov 16 04:22:02 2012

Optimize a model with 7803 rows, 2652 columns and 25857 nonzeros
Presolve time: 0.07s
Presolved: 7803 rows, 2652 columns, 26296 nonzeros
Variable types: 0 continuous, 2652 integer (2652 binary)
Found heuristic solution: objective 29.0000000

Root relaxation: objective 2.000000e+00, 2312 iterations, 0.06 seconds

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

     0     0    2.00000    0  102   29.00000    2.00000  93.1%     -    0s
H    0     0                      10.0000000    2.00000  80.0%     -    0s
H    0     0                       5.0000000    2.00000  60.0%     -    0s
     0     0    2.00000    0  102    5.00000    2.00000  60.0%     -    0s
     0     0    2.00000    0  102    5.00000    2.00000  60.0%     -    2s
     0     0    2.00000    0  102    5.00000    2.00000  60.0%     -    4s
     0     0    2.00000    0  102    5.00000    2.00000  60.0%     -    7s
     0     0    2.00000    0  102    5.00000    2.00000  60.0%     -    9s
     0     0    2.00000    0  102    5.00000    2.00000  60.0%     -   11s
     0     2    2.00000    0  102    5.00000    2.00000  60.0%     -   21s
     1     3    3.00000    1  628    5.00000    2.00000  60.0% 24046   27s
     3     5    3.06667    2  256    5.00000    3.00000  40.0% 12063   30s
*   22     6              17       4.0000000    3.00000  25.0%  1715   30s
    60     3     cutoff    7         4.00000    3.00000  25.0%  1090   35s

Cutting planes:
  Clique: 117

Explored 78 nodes (127227 simplex iterations) in 37.62 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%