Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:31:48 2012

Optimize a model with 297 rows, 829 columns and 829 nonzeros
Model has 592 quadratic constraints
Presolve removed 0 rows and 19 columns
Presolve time: 3.50s
Presolved: 297 rows, 810 columns, 810 nonzeros
Variable types: 592 continuous, 218 integer (217 binary)

Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds

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

H    0     0                     140.0000000          -     -      -    3s
     0     0    0.00000    0  154  140.00000    0.00000   100%     -    3s
     0     0    0.17979    0  197  140.00000    0.17979   100%     -    3s
     0     2    0.31452    0  197  140.00000    0.31452   100%     -    3s
H   48    48                      32.0000000    2.32558  92.7%  32.5    3s
*   53    49              31      26.0000000    2.32558  91.1%  32.0    3s
*  135   109              52      25.0000000    2.54348  89.8%  27.8    3s
*  212   144              31      24.0000000    5.91837  75.3%  30.5    3s
   611   260   10.80612   18  736   24.00000   10.80612  55.0%  39.5    5s
* 1664   240              45      23.0000000   15.26087  33.6%  39.1    8s
H 1828   224                      22.0000000   15.63636  28.9%  37.8    8s
  2421   140     cutoff   39        22.00000   18.13569  17.6%  36.1   10s

Explored 2690 nodes (96034 simplex iterations) in 10.52 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%