Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:51 2012

Optimize a model with 1 rows, 38 columns and 38 nonzeros
Model has 51 quadratic objective terms
Presolve removed 0 rows and 2 columns
Presolve time: 0.00s
Presolved: 52 rows, 87 columns, 189 nonzeros
Variable types: 0 continuous, 87 integer (86 binary)
Found heuristic solution: objective 19.0000000

Root relaxation: objective 0.000000e+00, 61 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    9   19.00000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   18    8.00000    0.00000   100%     -    0s
     0     0    0.00000    0    9    8.00000    0.00000   100%     -    0s
     0     0    0.00000    0   13    8.00000    0.00000   100%     -    0s
     0     0    0.00000    0   13    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
H  130    36                       7.0000000    0.00000   100%   5.5    0s

Cutting planes:
  Cover: 88

Explored 185 nodes (2231 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%