Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:09 2012

Optimize a model with 1 rows, 9 columns and 9 nonzeros
Model has 20 quadratic objective terms
Presolve time: 0.00s
Presolved: 21 rows, 29 columns, 69 nonzeros
Variable types: 0 continuous, 29 integer (29 binary)
Found heuristic solution: objective 10.0000000

Root relaxation: objective 0.000000e+00, 22 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   10   10.00000    0.00000   100%     -    0s
     0     0    0.00000    0    9   10.00000    0.00000   100%     -    0s
H    0     0                       9.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   10    9.00000    0.00000   100%     -    0s
     0     0    0.00000    0   10    9.00000    0.00000   100%     -    0s
     0     2    0.00000    0    9    9.00000    0.00000   100%     -    0s
H   20     7                       8.0000000    0.00000   100%   3.9    0s

Cutting planes:
  Cover: 31

Explored 46 nodes (236 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%