Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:02 2012

Optimize a model with 7 rows, 16 columns and 16 nonzeros
Model has 12 quadratic constraints
Presolve time: 0.07s
Presolved: 7 rows, 16 columns, 16 nonzeros
Variable types: 12 continuous, 4 integer (4 binary)

Root relaxation: objective 0.000000e+00, 2 iterations, 0.00 seconds

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

H    0     0                       4.0000000          -     -      -    0s
     0     0    0.00000    0    4    4.00000    0.00000   100%     -    0s
     0     0    0.44444    0    4    4.00000    0.44444  88.9%     -    0s
     0     2    0.66667    0    4    4.00000    0.66667  83.3%     -    0s

Cutting planes:
  Gomory: 1

Explored 11 nodes (42 simplex iterations) in 0.08 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%