Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:48 2012

Optimize a model with 24 rows, 66 columns and 66 nonzeros
Model has 46 quadratic constraints
Presolve time: 0.27s
Presolved: 24 rows, 66 columns, 66 nonzeros
Variable types: 46 continuous, 20 integer (20 binary)

Root relaxation: objective 0.000000e+00, 10 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    3   12.00000    0.00000   100%     -    0s
     0     0    0.00000    0    2   12.00000    0.00000   100%     -    0s
     0     0    0.00000    0   17   12.00000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   17    8.00000    0.00000   100%     -    0s
*    6     6               4       5.0000000    2.30000  54.0%  18.2    0s
*   10     8               6       4.0000000    2.30000  42.5%  12.9    0s

Cutting planes:

Explored 44 nodes (433 simplex iterations) in 0.29 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%