Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:36 2012

Optimize a model with 57 rows, 152 columns and 152 nonzeros
Model has 112 quadratic constraints
Presolve time: 0.65s
Presolved: 57 rows, 152 columns, 152 nonzeros
Variable types: 112 continuous, 40 integer (40 binary)

Root relaxation: objective 0.000000e+00, 20 iterations, 0.00 seconds

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

H    0     0                      30.0000000          -     -      -    0s
     0     0    0.00000    0   31   30.00000    0.00000   100%     -    0s
     0     0    0.29161    0   39   30.00000    0.29161  99.0%     -    0s
     0     2    0.30556    0   39   30.00000    0.30556  99.0%     -    0s
*    9     9               8       7.0000000    3.60000  48.6%  23.4    0s
*   18     4               4       6.0000000    3.63636  39.4%  15.6    0s

Cutting planes:
  Gomory: 1

Explored 33 nodes (844 simplex iterations) in 0.69 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%