Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:13 2012

Optimize a model with 41 rows, 121 columns and 121 nonzeros
Model has 80 quadratic constraints
Presolve removed 0 rows and 2 columns
Presolve time: 0.47s
Presolved: 41 rows, 119 columns, 119 nonzeros
Variable types: 80 continuous, 39 integer (38 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                      23.0000000          -     -      -    0s
     0     0    0.00000    0    2   23.00000    0.00000   100%     -    0s
     0     0    0.00000    0   18   23.00000    0.00000   100%     -    0s
     0     0    0.00000    0   22   23.00000    0.00000   100%     -    0s
     0     2    0.00000    0   22   23.00000    0.00000   100%     -    0s
*   12    12               9       4.0000000    0.92308  76.9%  15.2    0s
*   36    16               9       3.0000000    1.00000  66.7%  11.1    0s

Cutting planes:

Explored 81 nodes (1087 simplex iterations) in 0.50 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%