Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:19:49 2012

Optimize a model with 111 rows, 283 columns and 283 nonzeros
Model has 220 quadratic constraints
Presolve time: 1.28s
Presolved: 111 rows, 283 columns, 283 nonzeros
Variable types: 220 continuous, 63 integer (63 binary)

Root relaxation: objective 0.000000e+00, 31 iterations, 0.00 seconds

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

H    0     0                      52.0000000          -     -      -    1s
     0     0    0.00000    0   38   52.00000    0.00000   100%     -    1s
     0     0    0.16667    0   62   52.00000    0.16667   100%     -    1s
     0     2    0.24653    0   62   52.00000    0.24653   100%     -    1s
H    8     8                      44.0000000    2.70833  93.8%  31.4    1s
*   31    31              19      21.0000000    2.70833  87.1%  23.3    1s
*  118    62              14      18.0000000    4.16667  76.9%  23.7    1s

Cutting planes:
  Gomory: 1

Explored 1407 nodes (27473 simplex iterations) in 1.98 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%