Gurobi 5.0.1 (linux64) logging started Fri Nov 16 05:22:40 2012

Optimize a model with 9295 rows, 3080 columns and 30745 nonzeros
Presolve time: 0.08s
Presolved: 9295 rows, 3080 columns, 31197 nonzeros
Variable types: 0 continuous, 3080 integer (3080 binary)
Found heuristic solution: objective 38.0000000

Root relaxation: objective 2.000000e+00, 2934 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  110   38.00000    2.00000  94.7%     -    0s
H    0     0                       9.0000000    2.00000  77.8%     -    0s
H    0     0                       5.0000000    2.00000  60.0%     -    0s
     0     0    2.00000    0  110    5.00000    2.00000  60.0%     -    1s
     0     0    2.00000    0  110    5.00000    2.00000  60.0%     -    4s
     0     0    2.00000    0  110    5.00000    2.00000  60.0%     -    7s
     0     0    2.00000    0  110    5.00000    2.00000  60.0%     -   10s
     0     0    2.00000    0  110    5.00000    2.00000  60.0%     -   13s
     0     0    2.00000    0  110    5.00000    2.00000  60.0%     -   16s
H    0     0                       4.0000000    2.00000  50.0%     -   23s
     0     2    2.00000    0  110    4.00000    2.00000  50.0%     -   27s
     2     4    3.00000    1  577    4.00000    2.53333  36.7% 19546   38s
    24     8    3.00000    4  236    4.00000    3.00000  25.0%  1996   40s
    44     6    3.00000    2  100    4.00000    3.00000  25.0%  1625   45s
    56     8     cutoff    8         4.00000    3.00000  25.0%  1617   50s
    77     7    3.00000    5   92    4.00000    3.00000  25.0%  1482   55s

Cutting planes:
  Clique: 162

Explored 93 nodes (196940 simplex iterations) in 59.97 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%