Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:10:07 2012

Optimize a model with 241 rows, 686 columns and 686 nonzeros
Model has 480 quadratic constraints
Presolve removed 0 rows and 16 columns
Presolve time: 2.80s
Presolved: 241 rows, 670 columns, 670 nonzeros
Variable types: 480 continuous, 190 integer (189 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                     117.0000000          -     -      -    2s
     0     0    0.00000    0    2  117.00000    0.00000   100%     -    2s
     0     0    0.00000    0    9  117.00000    0.00000   100%     -    2s
     0     0    0.00000    0    2  117.00000    0.00000   100%     -    2s
     0     2    0.00000    0   10  117.00000    0.00000   100%     -    2s
H   43    43                      30.0000000    0.36782  98.8%  32.8    2s
*   48    46              37      26.0000000    0.36782  98.6%  32.6    2s
H   78    66                      24.0000000    0.43678  98.2%  28.4    2s
H  162   104                      22.0000000    0.53846  97.6%  24.0    3s
*  165    89              32      20.0000000    0.53846  97.3%  24.3    3s
*  175    81              38      19.0000000    0.53846  97.2%  26.0    3s
*  528   122              11      16.0000000    6.03327  62.3%  22.6    3s

Cutting planes:
  Gomory: 1

Explored 1745 nodes (45380 simplex iterations) in 4.64 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%