Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:23:14 2012

Optimize a model with 4724 rows, 756 columns and 14794 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.07s
Presolved: 4722 rows, 754 columns, 19547 nonzeros
Variable types: 0 continuous, 754 integer (754 binary)
Found heuristic solution: objective 27.0000000

Root relaxation: objective 3.818182e+00, 4640 iterations, 0.24 seconds

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

     0     0    3.81818    0  500   27.00000    3.81818  85.9%     -    0s
H    0     0                      26.0000000    3.81818  85.3%     -    0s
     0     0    6.00000    0   96   26.00000    6.00000  76.9%     -    0s
H    0     0                      18.0000000    6.00000  66.7%     -    0s
H    0     0                       6.0000000    6.00000   0.0%     -    0s

Cutting planes:
  Clique: 2

Explored 0 nodes (7193 simplex iterations) in 0.96 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%