Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:49 2012

Optimize a model with 41 rows, 117 columns and 117 nonzeros
Model has 80 quadratic constraints
Presolve removed 0 rows and 1 columns
Presolve time: 0.47s
Presolved: 41 rows, 116 columns, 116 nonzeros
Variable types: 80 continuous, 36 integer (35 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   19   18.00000    0.00000   100%     -    0s
     0     0    0.00000    0   21   18.00000    0.00000   100%     -    0s
     0     0    0.00000    0   21   18.00000    0.00000   100%     -    0s
     0     2    0.00000    0   21   18.00000    0.00000   100%     -    0s
*   10     9               7       4.0000000    2.57895  35.5%  19.9    0s

Cutting planes:
  Gomory: 1

Explored 52 nodes (647 simplex iterations) in 0.49 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%