Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:49 2012

Optimize a model with 47 rows, 129 columns and 129 nonzeros
Model has 92 quadratic constraints
Presolve removed 0 rows and 1 columns
Presolve time: 0.54s
Presolved: 47 rows, 128 columns, 128 nonzeros
Variable types: 92 continuous, 36 integer (35 binary)

Root relaxation: objective 0.000000e+00, 18 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   17   20.00000    0.00000   100%     -    0s
     0     0    0.00000    0   31   20.00000    0.00000   100%     -    0s
     0     0    0.00000    0   31   20.00000    0.00000   100%     -    0s
     0     2    0.00000    0   24   20.00000    0.00000   100%     -    0s
*   18    18              10       7.0000000    1.35484  80.6%  17.7    0s
*   46    20              11       6.0000000    1.41935  76.3%  12.3    0s

Cutting planes:
  Gomory: 1

Explored 161 nodes (2118 simplex iterations) in 0.59 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%