Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:12 2012

Optimize a model with 20 rows, 48 columns and 48 nonzeros
Model has 38 quadratic constraints
Presolve time: 0.22s
Presolved: 20 rows, 48 columns, 48 nonzeros
Variable types: 38 continuous, 10 integer (10 binary)

Root relaxation: objective 0.000000e+00, 5 iterations, 0.00 seconds

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

H    0     0                      12.0000000          -     -      -    0s
     0     0    0.00000    0    7   12.00000    0.00000   100%     -    0s
     0     0    0.35714    0   10   12.00000    0.35714  97.0%     -    0s
     0     0    0.35714    0   10   12.00000    0.35714  97.0%     -    0s
     0     2    0.50000    0   10   12.00000    0.50000  95.8%     -    0s
*    9     9               6      10.0000000    3.33333  66.7%   7.9    0s
*   10     8               6       9.0000000    3.33333  63.0%   7.2    0s
*   11     7               6       8.0000000    3.33333  58.3%   6.8    0s
*   16     4               6       7.0000000    3.33333  52.4%   5.1    0s
*   17     3               2       5.0000000    3.33333  33.3%   5.2    0s

Cutting planes:
  Gomory: 1

Explored 21 nodes (161 simplex iterations) in 0.23 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%