Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:33:44 2012

Optimize a model with 268 rows, 764 columns and 764 nonzeros
Model has 534 quadratic constraints
Presolve removed 0 rows and 28 columns
Presolve time: 3.15s
Presolved: 268 rows, 736 columns, 736 nonzeros
Variable types: 534 continuous, 202 integer (201 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                     135.0000000          -     -      -    3s
     0     0    0.00000    0    9  135.00000    0.00000   100%     -    3s
     0     0    0.00000    0    4  135.00000    0.00000   100%     -    3s
     0     0    0.00000    0    4  135.00000    0.00000   100%     -    3s
     0     2    0.00000    0  117  135.00000    0.00000   100%     -    3s
H   54    54                      25.0000000    1.59259  93.6%  34.2    3s
*   58    58              39      22.0000000    1.59259  92.8%  32.5    3s
H  186   115                      21.0000000    2.72650  87.0%  21.9    3s
*  186    90              21      19.0000000    2.72650  85.7%  22.7    3s
H  580   241                      18.0000000    7.34948  59.2%  22.9    3s
   701   277   15.45023   11    4   18.00000    8.07843  55.1%  23.1    5s
  2232   432   17.74044   34  350   18.00000   11.33333  37.0%  31.9   10s
  4894   185   16.31852   40  352   18.00000   16.27273  9.60%  30.8   15s

Explored 5657 nodes (159671 simplex iterations) in 15.66 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.799999999879e+01, best bound 1.799999999879e+01, gap 0.0%