Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:02:51 2012

Optimize a model with 222 rows, 641 columns and 641 nonzeros
Model has 442 quadratic constraints
Presolve removed 0 rows and 30 columns
Presolve time: 2.58s
Presolved: 222 rows, 611 columns, 611 nonzeros
Variable types: 442 continuous, 169 integer (168 binary)

Root relaxation: objective 0.000000e+00, 79 iterations, 0.00 seconds

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

H    0     0                     109.0000000          -     -      -    2s
     0     0    0.00000    0   33  109.00000    0.00000   100%     -    2s
     0     0    0.00000    0  116  109.00000    0.00000   100%     -    2s
     0     0    0.00000    0  111  109.00000    0.00000   100%     -    2s
     0     2    0.00000    0  102  109.00000    0.00000   100%     -    2s
H   39    39                      20.0000000    1.46420  92.7%  42.7    2s
*  213   156              26      19.0000000    2.02714  89.3%  24.6    2s
   880   426   15.48485   40  335   19.00000    6.69231  64.8%  33.8    5s
H 1649   346                      18.0000000   10.73721  40.3%  28.2    6s
* 2379   268              58      17.0000000   12.58824  26.0%  27.6    7s

Explored 2981 nodes (81071 simplex iterations) in 8.14 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%