Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:49:42 2012

Optimize a model with 274 rows, 778 columns and 778 nonzeros
Model has 546 quadratic constraints
Presolve removed 0 rows and 26 columns
Presolve time: 3.19s
Presolved: 274 rows, 752 columns, 752 nonzeros
Variable types: 546 continuous, 206 integer (205 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                     131.0000000          -     -      -    3s
     0     0    0.00000    0    5  131.00000    0.00000   100%     -    3s
     0     0    0.00000    0    3  131.00000    0.00000   100%     -    3s
     0     0    0.00000    0    3  131.00000    0.00000   100%     -    3s
     0     2    0.00000    0   91  131.00000    0.00000   100%     -    3s
*   30    30              22      23.0000000    2.75862  88.0%  86.3    3s
*  425   206              23      22.0000000    7.48105  66.0%  25.2    3s
*  534   228              24      21.0000000    8.52071  59.4%  24.3    3s
   706   298    9.96732   14  462   21.00000    9.96732  52.5%  27.3    5s
* 1699   426              57      20.0000000   10.93750  45.3%  37.7    8s
* 2085   398              46      19.0000000   12.00000  36.8%  37.4    9s
  2449   408   17.33333   37  392   19.00000   13.00000  31.6%  37.1   10s

Explored 3896 nodes (144442 simplex iterations) in 14.32 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.900000000000e+01, best bound 1.900000000000e+01, gap 0.0%