Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:43:32 2012

Optimize a model with 270 rows, 769 columns and 769 nonzeros
Model has 538 quadratic constraints
Presolve removed 0 rows and 20 columns
Presolve time: 3.14s
Presolved: 270 rows, 749 columns, 749 nonzeros
Variable types: 538 continuous, 211 integer (210 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  104  140.00000    0.00000   100%     -    3s
     0     0    0.00000    0  162  140.00000    0.00000   100%     -    3s
     0     0    0.00000    0  160  140.00000    0.00000   100%     -    3s
     0     2    0.00000    0  138  140.00000    0.00000   100%     -    3s
H   48    48                      23.0000000    2.69841  88.3%  35.9    3s
H   54    54                      22.0000000    2.69841  87.7%  35.2    3s
*   63    44              35      20.0000000    2.69841  86.5%  36.4    3s
H   90    55                      19.0000000    2.70588  85.8%  34.5    3s
*  106    56              25      18.0000000    2.70588  85.0%  36.3    3s
   706   168   11.10714   14  459   18.00000   11.10714  38.3%  33.2    5s
  2321   172   16.21846   35  439   18.00000   14.16800  21.3%  34.2   10s

Explored 3043 nodes (99067 simplex iterations) in 11.51 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%