Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:37:13 2012

Optimize a model with 169 rows, 504 columns and 504 nonzeros
Model has 336 quadratic constraints
Presolve removed 0 rows and 24 columns
Presolve time: 1.96s
Presolved: 169 rows, 480 columns, 480 nonzeros
Variable types: 336 continuous, 144 integer (143 binary)

Root relaxation: objective 0.000000e+00, 61 iterations, 0.00 seconds

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

H    0     0                      87.0000000          -     -      -    1s
     0     0    0.00000    0   17   87.00000    0.00000   100%     -    1s
     0     0    0.00000    0   18   87.00000    0.00000   100%     -    1s
     0     0    0.00000    0   78   87.00000    0.00000   100%     -    1s
     0     2    0.00000    0   78   87.00000    0.00000   100%     -    2s
*   15    15              11      10.0000000    1.92453  80.8%  67.7    2s
*   18     9              10       9.0000000    1.92453  78.6%  62.1    2s
*   65    19               5       8.0000000    3.54000  55.8%  31.0    2s
H  230    18                       7.0000000    6.38636  8.77%  16.8    2s

Cutting planes:

Explored 251 nodes (5698 simplex iterations) in 2.19 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.999999998957e+00, best bound 6.999999998957e+00, gap 0.0%