Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:41 2012

Optimize a model with 55 rows, 153 columns and 153 nonzeros
Model has 108 quadratic constraints
Presolve time: 0.63s
Presolved: 55 rows, 153 columns, 153 nonzeros
Variable types: 108 continuous, 45 integer (45 binary)

Root relaxation: objective 0.000000e+00, 22 iterations, 0.00 seconds

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

H    0     0                      29.0000000          -     -      -    0s
     0     0    0.00000    0    6   29.00000    0.00000   100%     -    0s
     0     0    0.00000    0    4   29.00000    0.00000   100%     -    0s
     0     0    0.00000    0   24   29.00000    0.00000   100%     -    0s
     0     2    0.00000    0   22   29.00000    0.00000   100%     -    0s
*    8     8               6       6.0000000    2.00000  66.7%  26.6    0s
*   63    11              12       5.0000000    4.00000  20.0%   9.0    0s
*   76     2               7       4.0000000    4.00000   0.0%   9.0    0s

Cutting planes:

Explored 77 nodes (1057 simplex iterations) in 0.66 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%