Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:07 2012

Optimize a model with 31 rows, 85 columns and 85 nonzeros
Model has 60 quadratic constraints
Presolve time: 0.35s
Presolved: 31 rows, 85 columns, 85 nonzeros
Variable types: 60 continuous, 25 integer (25 binary)

Root relaxation: objective 0.000000e+00, 12 iterations, 0.00 seconds

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

H    0     0                      11.0000000          -     -      -    0s
     0     0    0.00000    0   16   11.00000    0.00000   100%     -    0s
     0     0    0.19718    0   23   11.00000    0.19718  98.2%     -    0s
     0     2    0.60000    0   23   11.00000    0.60000  94.5%     -    0s
*    4     4               3       4.0000000    2.46154  38.5%  14.5    0s

Cutting planes:
  Gomory: 1

Explored 21 nodes (311 simplex iterations) in 0.37 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%