Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:58 2012

Optimize a model with 1 rows, 23 columns and 23 nonzeros
Model has 37 quadratic objective terms
Presolve time: 0.00s
Presolved: 38 rows, 60 columns, 134 nonzeros
Variable types: 0 continuous, 60 integer (60 binary)
Found heuristic solution: objective 16.0000000

Root relaxation: objective 0.000000e+00, 52 iterations, 0.00 seconds

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

     0     0    0.00000    0   11   16.00000    0.00000   100%     -    0s
H    0     0                      11.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   15   11.00000    0.00000   100%     -    0s
     0     0    0.00000    0   10   11.00000    0.00000   100%     -    0s
H    0     0                      10.0000000    0.00000   100%     -    0s
H    0     0                       9.0000000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   11    8.00000    0.00000   100%     -    0s
     0     0    0.00000    0   10    8.00000    0.00000   100%     -    0s
     0     2    0.00000    0   10    8.00000    0.00000   100%     -    0s
*   76    26               8       7.0000000    1.00000  85.7%   5.0    0s
*   93     7               5       6.0000000    3.41667  43.1%   7.2    0s

Cutting planes:
  Cover: 67

Explored 101 nodes (862 simplex iterations) in 0.02 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%