Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:46 2012

Optimize a model with 56 rows, 161 columns and 161 nonzeros
Model has 110 quadratic constraints
Presolve removed 0 rows and 5 columns
Presolve time: 0.64s
Presolved: 56 rows, 156 columns, 156 nonzeros
Variable types: 110 continuous, 46 integer (45 binary)

Root relaxation: objective 0.000000e+00, 23 iterations, 0.00 seconds

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

H    0     0                      22.0000000          -     -      -    0s
     0     0    0.00000    0    6   22.00000    0.00000   100%     -    0s
     0     0    0.00000    0   12   22.00000    0.00000   100%     -    0s
     0     0    0.00000    0   25   22.00000    0.00000   100%     -    0s
     0     2    0.00000    0   25   22.00000    0.00000   100%     -    0s
*   15    15              13       9.0000000    1.40741  84.4%  19.2    0s
*   17    15              14       8.0000000    1.40741  82.4%  18.3    0s
*   42    19              15       5.0000000    1.47222  70.6%  11.5    0s
*   51     3               3       4.0000000    3.00000  25.0%  11.6    0s

Cutting planes:

Explored 57 nodes (1108 simplex iterations) in 0.67 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%