Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:09 2012

Optimize a model with 15 rows, 37 columns and 37 nonzeros
Model has 28 quadratic constraints
Presolve time: 0.16s
Presolved: 15 rows, 37 columns, 37 nonzeros
Variable types: 28 continuous, 9 integer (9 binary)

Root relaxation: objective 0.000000e+00, 4 iterations, 0.00 seconds

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

H    0     0                       7.0000000          -     -      -    0s
     0     0    0.00000    0    7    7.00000    0.00000   100%     -    0s
     0     0    0.26667    0    8    7.00000    0.26667  96.2%     -    0s
     0     2    0.66667    0    8    7.00000    0.66667  90.5%     -    0s
*    5     5               3       4.0000000    3.00000  25.0%   6.4    0s

Cutting planes:
  Gomory: 1

Explored 11 nodes (100 simplex iterations) in 0.17 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%