Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:17:10 2012

Optimize a model with 241 rows, 691 columns and 691 nonzeros
Model has 480 quadratic constraints
Presolve removed 0 rows and 17 columns
Presolve time: 2.80s
Presolved: 241 rows, 674 columns, 674 nonzeros
Variable types: 480 continuous, 194 integer (193 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                     109.0000000          -     -      -    2s
     0     0    0.00000    0  114  109.00000    0.00000   100%     -    2s
     0     0    0.00000    0  165  109.00000    0.00000   100%     -    2s
     0     0    0.00000    0  153  109.00000    0.00000   100%     -    2s
     0     2    0.00000    0  147  109.00000    0.00000   100%     -    2s
H   39    39                      22.0000000    3.20930  85.4%  39.1    2s
*   80    65              47      21.0000000    3.20930  84.7%  26.9    2s
*  103    57              16      20.0000000    3.23664  83.8%  26.6    3s
*  108    48              19      18.0000000    3.23664  82.0%  27.8    3s
H  275    86                      17.0000000    8.74948  48.5%  25.0    3s
H  302    55                      15.0000000    8.82880  41.1%  23.4    3s
H  311    46                      14.0000000    8.82880  36.9%  23.4    3s

Cutting planes:
  Gomory: 1

Explored 520 nodes (13558 simplex iterations) in 3.38 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.399999999877e+01, best bound 1.399999999877e+01, gap 0.0%