Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:36:49 2012

Optimize a model with 168 rows, 501 columns and 501 nonzeros
Model has 334 quadratic constraints
Presolve removed 0 rows and 21 columns
Presolve time: 1.95s
Presolved: 168 rows, 480 columns, 480 nonzeros
Variable types: 334 continuous, 146 integer (145 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                      89.0000000          -     -      -    1s
     0     0    0.00000    0   16   89.00000    0.00000   100%     -    1s
     0     0    0.00000    0   16   89.00000    0.00000   100%     -    1s
     0     0    0.00000    0    2   89.00000    0.00000   100%     -    1s
     0     2    0.00000    0    2   89.00000    0.00000   100%     -    1s
H   24    24                      17.0000000    0.78049  95.4%  44.7    2s
*   26    25              22      13.0000000    0.78049  94.0%  43.5    2s
H   43    32                      12.0000000    0.82895  93.1%  30.2    2s
H   96    66                      11.0000000    1.00000  90.9%  25.6    2s
*   96    62              33      10.0000000    1.00000  90.0%  25.6    2s
*   99    59              35       9.0000000    1.00000  88.9%  24.9    2s
*  124    29              10       8.0000000    1.00000  87.5%  22.6    2s
H  239    23                       8.0000000    4.81880  39.8%  29.8    2s

Cutting planes:

Explored 283 nodes (9191 simplex iterations) in 2.24 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.999999999037e+00, best bound 7.999999999037e+00, gap 0.0%