Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:12:47 2012

Optimize a model with 221 rows, 649 columns and 649 nonzeros
Model has 440 quadratic constraints
Presolve removed 0 rows and 27 columns
Presolve time: 2.57s
Presolved: 221 rows, 622 columns, 622 nonzeros
Variable types: 440 continuous, 182 integer (181 binary)

Root relaxation: objective 0.000000e+00, 77 iterations, 0.00 seconds

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

H    0     0                      90.0000000          -     -      -    2s
     0     0    0.00000    0   22   90.00000    0.00000   100%     -    2s
     0     0    0.00000    0  116   90.00000    0.00000   100%     -    2s
     0     0    0.00000    0  114   90.00000    0.00000   100%     -    2s
     0     2    0.00000    0  112   90.00000    0.00000   100%     -    2s
H   44    44                      21.0000000    2.41297  88.5%  32.9    2s
*   46    44              38      20.0000000    2.41297  87.9%  35.3    2s
*   66    28              16      11.0000000    2.67362  75.7%  28.8    2s
*  153    50              21      10.0000000    4.99379  50.1%  27.0    2s
H  161    54                      10.0000000    5.00000  50.0%  26.2    2s
*  494     3              11       9.0000000    8.91149  0.98%  19.3    3s

Cutting planes:

Explored 498 nodes (11295 simplex iterations) in 3.11 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%