Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:44 2012

Optimize a model with 57 rows, 128 columns and 128 nonzeros
Model has 112 quadratic constraints
Presolve time: 0.65s
Presolved: 57 rows, 128 columns, 128 nonzeros
Variable types: 112 continuous, 16 integer (16 binary)

Root relaxation: objective 0.000000e+00, 8 iterations, 0.00 seconds

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

H    0     0                      30.0000000          -     -      -    0s
     0     0    0.00000    0   14   30.00000    0.00000   100%     -    0s
     0     0    0.50000    0   16   30.00000    0.50000  98.3%     -    0s
     0     0    0.50000    0   16   30.00000    0.50000  98.3%     -    0s
     0     2    0.63333    0   16   30.00000    0.63333  97.9%     -    0s
*   15    15               8      24.0000000    5.83333  75.7%  23.3    0s
*   32    24              10      23.0000000    5.83333  74.6%  19.9    0s
*   35    21               8      22.0000000    5.83333  73.5%  18.4    0s
*   45    24               6      21.0000000    9.87500  53.0%  18.5    0s

Cutting planes:
  Gomory: 1

Explored 163 nodes (2489 simplex iterations) in 0.71 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%