Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:29 2012

Optimize a model with 41 rows, 109 columns and 109 nonzeros
Model has 80 quadratic constraints
Presolve time: 0.47s
Presolved: 41 rows, 109 columns, 109 nonzeros
Variable types: 80 continuous, 29 integer (29 binary)

Root relaxation: objective 0.000000e+00, 14 iterations, 0.00 seconds

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

H    0     0                      20.0000000          -     -      -    0s
     0     0    0.00000    0   18   20.00000    0.00000   100%     -    0s
     0     0    0.15873    0   28   20.00000    0.15873  99.2%     -    0s
     0     2    0.17593    0   28   20.00000    0.17593  99.1%     -    0s
*    8     8               5       6.0000000    1.73333  71.1%  26.8    0s

Cutting planes:
  Gomory: 1

Explored 60 nodes (958 simplex iterations) in 0.49 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%