Gurobi 5.0.1 (linux64) logging started Fri Nov 16 04:35:19 2012

Optimize a model with 8424 rows, 2756 columns and 27820 nonzeros
Presolve time: 0.07s
Presolved: 8424 rows, 2756 columns, 28312 nonzeros
Variable types: 0 continuous, 2756 integer (2756 binary)
Found heuristic solution: objective 28.0000000

Root relaxation: objective 2.000000e+00, 5025 iterations, 0.63 seconds

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

     0     0    2.00000    0  104   28.00000    2.00000  92.9%     -    0s
H    0     0                      14.0000000    2.00000  85.7%     -    0s
H    0     0                       5.0000000    2.00000  60.0%     -    0s
     0     0    2.00000    0  104    5.00000    2.00000  60.0%     -    0s
     0     0    2.00000    0  104    5.00000    2.00000  60.0%     -    1s
     0     0    2.00000    0  104    5.00000    2.00000  60.0%     -    1s
     0     0    2.00000    0  104    5.00000    2.00000  60.0%     -    2s
     0     0    2.00000    0  104    5.00000    2.00000  60.0%     -    2s
     0     0    2.00000    0  104    5.00000    2.00000  60.0%     -    3s
H    0     0                       4.0000000    2.00000  50.0%     -    5s
     0     2    2.00000    0  104    4.00000    2.00000  50.0%     -    5s
     2     4    3.00000    1  477    4.00000    3.00000  25.0%  9668   10s
    21     3    3.00000    4  102    4.00000    3.00000  25.0%  1840   15s

Cutting planes:
  Clique: 37

Explored 27 nodes (54850 simplex iterations) in 16.28 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%