Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:35 2012

Optimize a model with 39 rows, 110 columns and 110 nonzeros
Model has 76 quadratic constraints
Presolve removed 0 rows and 3 columns
Presolve time: 0.44s
Presolved: 39 rows, 107 columns, 107 nonzeros
Variable types: 76 continuous, 31 integer (30 binary)

Root relaxation: objective 0.000000e+00, 17 iterations, 0.00 seconds

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

H    0     0                      18.0000000          -     -      -    0s
     0     0    0.00000    0    6   18.00000    0.00000   100%     -    0s
     0     0    0.00000    0   12   18.00000    0.00000   100%     -    0s
     0     0    0.00000    0   22   18.00000    0.00000   100%     -    0s
     0     2    0.00000    0   22   18.00000    0.00000   100%     -    0s
*   17    17              11       7.0000000    1.16667  83.3%  13.1    0s
*   22    12              10       6.0000000    1.16667  80.6%  10.9    0s
H   27    10                       4.0000000    1.25000  68.7%  10.5    0s

Cutting planes:

Explored 68 nodes (834 simplex iterations) in 0.47 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%