Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:38 2012

Optimize a model with 85 rows, 223 columns and 223 nonzeros
Model has 168 quadratic constraints
Presolve removed 0 rows and 1 columns
Presolve time: 0.98s
Presolved: 85 rows, 222 columns, 222 nonzeros
Variable types: 168 continuous, 54 integer (53 binary)

Root relaxation: objective 0.000000e+00, 27 iterations, 0.00 seconds

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

H    0     0                      37.0000000          -     -      -    0s
     0     0    0.00000    0    3   37.00000    0.00000   100%     -    0s
     0     0    0.00000    0   39   37.00000    0.00000   100%     -    0s
     0     0    0.00000    0   26   37.00000    0.00000   100%     -    0s
     0     2    0.00000    0   17   37.00000    0.00000   100%     -    1s
*   21    21              14      18.0000000    1.46181  91.9%  37.0    1s
H   48    28                      15.0000000    1.66667  88.9%  24.9    1s
*   89    44              13      14.0000000    2.66667  81.0%  19.2    1s
*  101    43              10      13.0000000    3.23913  75.1%  20.0    1s
*  468    45              12      12.0000000    8.50000  29.2%  17.5    1s

Cutting planes:

Explored 621 nodes (10384 simplex iterations) in 1.21 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%