Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:49:53 2012

Optimize a model with 167 rows, 509 columns and 509 nonzeros
Model has 332 quadratic constraints
Presolve removed 0 rows and 23 columns
Presolve time: 1.94s
Presolved: 167 rows, 486 columns, 486 nonzeros
Variable types: 332 continuous, 154 integer (153 binary)

Root relaxation: objective 0.000000e+00, 59 iterations, 0.00 seconds

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

H    0     0                      81.0000000          -     -      -    1s
     0     0    0.00000    0    5   81.00000    0.00000   100%     -    1s
     0     0    0.00000    0   65   81.00000    0.00000   100%     -    1s
     0     0    0.00000    0   92   81.00000    0.00000   100%     -    1s
     0     2    0.00000    0   92   81.00000    0.00000   100%     -    2s
*   28    20              20       8.0000000    0.67213  91.6%  36.4    2s
H  122    55                       7.0000000    1.44681  79.3%  21.9    2s
*  234    57              15       6.0000000    2.00000  66.7%  19.1    2s
H  288    61                       6.0000000    2.34545  60.9%  19.2    2s

Cutting planes:

Explored 609 nodes (11632 simplex iterations) in 2.33 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.999999998909e+00, best bound 5.999999998909e+00, gap 0.0%