Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:00:41 2012

Optimize a model with 201 rows, 596 columns and 596 nonzeros
Model has 400 quadratic constraints
Presolve removed 0 rows and 23 columns
Presolve time: 2.33s
Presolved: 201 rows, 573 columns, 573 nonzeros
Variable types: 400 continuous, 173 integer (172 binary)

Root relaxation: objective 0.000000e+00, 71 iterations, 0.00 seconds

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

H    0     0                     112.0000000          -     -      -    2s
     0     0    0.00000    0   71  112.00000    0.00000   100%     -    2s
     0     0    0.00000    0   81  112.00000    0.00000   100%     -    2s
     0     0    0.00000    0    4  112.00000    0.00000   100%     -    2s
     0     2    0.00000    0  131  112.00000    0.00000   100%     -    2s
*   25    23              16      11.0000000    1.65789  84.9%  53.5    2s
H   77    37                       9.0000000    2.15293  76.1%  31.3    2s
H  165    27                       8.0000000    5.29412  33.8%  26.9    2s

Cutting planes:

Explored 241 nodes (7172 simplex iterations) in 2.65 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%