Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:34 2012

Optimize a model with 50 rows, 112 columns and 112 nonzeros
Model has 98 quadratic constraints
Presolve time: 0.57s
Presolved: 50 rows, 112 columns, 112 nonzeros
Variable types: 98 continuous, 14 integer (14 binary)

Root relaxation: objective 0.000000e+00, 7 iterations, 0.00 seconds

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

H    0     0                      28.0000000          -     -      -    0s
     0     0    0.00000    0   14   28.00000    0.00000   100%     -    0s
     0     0    0.50000    0   14   28.00000    0.50000  98.2%     -    0s
     0     2    0.77778    0   14   28.00000    0.77778  97.2%     -    0s
*   15    15               9      21.0000000    3.65306  82.6%  17.0    0s
*   34    24              10      20.0000000    3.85714  80.7%  16.5    0s

Cutting planes:
  Gomory: 1

Explored 197 nodes (2804 simplex iterations) in 0.63 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.000000000000e+01, best bound 2.000000000000e+01, gap 0.0%