Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:43 2012

Optimize a model with 51 rows, 131 columns and 131 nonzeros
Model has 100 quadratic constraints
Presolve time: 0.58s
Presolved: 51 rows, 131 columns, 131 nonzeros
Variable types: 100 continuous, 31 integer (31 binary)

Root relaxation: objective 0.000000e+00, 15 iterations, 0.00 seconds

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

H    0     0                      29.0000000          -     -      -    0s
     0     0    0.00000    0   26   29.00000    0.00000   100%     -    0s
     0     0    0.44511    0   30   29.00000    0.44511  98.5%     -    0s
     0     2    0.45070    0   30   29.00000    0.45070  98.4%     -    0s
H    8     8                      13.0000000    2.14634  83.5%  26.0    0s
H    8     8                      11.0000000    2.14634  80.5%  26.0    0s
*   16    16              11       9.0000000    2.14634  76.2%  16.8    0s
*   81     9               5       8.0000000    6.72727  15.9%  11.9    0s

Cutting planes:
  Gomory: 1

Explored 99 nodes (1434 simplex iterations) in 0.63 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%