Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:31 2012

Optimize a model with 53 rows, 147 columns and 147 nonzeros
Model has 104 quadratic constraints
Presolve removed 0 rows and 2 columns
Presolve time: 0.61s
Presolved: 53 rows, 145 columns, 145 nonzeros
Variable types: 104 continuous, 41 integer (40 binary)

Root relaxation: objective 0.000000e+00, 19 iterations, 0.00 seconds

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

H    0     0                      23.0000000          -     -      -    0s
     0     0    0.00000    0    2   23.00000    0.00000   100%     -    0s
     0     0    0.00000    0   28   23.00000    0.00000   100%     -    0s
     0     0    0.00000    0   31   23.00000    0.00000   100%     -    0s
     0     2    0.00000    0   30   23.00000    0.00000   100%     -    0s
*   20    18              13       9.0000000    1.20000  86.7%  20.6    0s
*   40    24              13       8.0000000    2.12500  73.4%  14.4    0s
*   50    23               7       7.0000000    2.34375  66.5%  14.5    0s

Cutting planes:

Explored 162 nodes (2252 simplex iterations) in 0.67 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%