Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:06:58 2012

Optimize a model with 267 rows, 766 columns and 766 nonzeros
Model has 532 quadratic constraints
Presolve removed 0 rows and 17 columns
Presolve time: 3.11s
Presolved: 267 rows, 749 columns, 749 nonzeros
Variable types: 532 continuous, 217 integer (216 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   94  135.00000    0.00000   100%     -    3s
     0     0    0.00000    0  154  135.00000    0.00000   100%     -    3s
     0     0    0.00000    0   93  135.00000    0.00000   100%     -    3s
     0     2    0.00000    0   93  135.00000    0.00000   100%     -    3s
H   43    43                      24.0000000    4.03141  83.2%  46.3    3s
*   43    43              27      22.0000000    4.03141  81.7%  46.4    3s
H  106    54                      20.0000000    4.17582  79.1%  26.8    3s
*  249   116              14      19.0000000    7.05556  62.9%  26.8    3s
*  357   152              33      18.0000000    7.28090  59.6%  24.1    3s
   607   222    9.38095   12  717   18.00000    9.38095  47.9%  26.1    5s
*  780   293              45      17.0000000    9.38095  44.8%  34.3    6s
* 2283   219              48      16.0000000   12.00825  24.9%  31.0    9s
  2341   209   13.89551   34  331   16.00000   12.17391  23.9%  30.7   10s

Explored 2824 nodes (87814 simplex iterations) in 11.75 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%