Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:23 2012

Optimize a model with 41 rows, 108 columns and 108 nonzeros
Model has 80 quadratic constraints
Presolve time: 0.46s
Presolved: 41 rows, 108 columns, 108 nonzeros
Variable types: 80 continuous, 28 integer (28 binary)

Root relaxation: objective 0.000000e+00, 14 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   16   18.00000    0.00000   100%     -    0s
     0     0    0.07368    0   27   18.00000    0.07368   100%     -    0s
     0     2    0.13208    0   27   18.00000    0.13208  99.3%     -    0s
*    7     7               7       4.0000000    0.94118  76.5%  10.6    0s

Cutting planes:
  Gomory: 1

Explored 26 nodes (452 simplex iterations) in 0.48 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%