Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:12:51 2012

Optimize a model with 254 rows, 715 columns and 715 nonzeros
Model has 506 quadratic constraints
Presolve removed 0 rows and 15 columns
Presolve time: 2.95s
Presolved: 254 rows, 700 columns, 700 nonzeros
Variable types: 506 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                     125.0000000          -     -      -    2s
     0     0    0.00000    0  115  125.00000    0.00000   100%     -    2s
     0     0    0.00000    0  182  125.00000    0.00000   100%     -    3s
     0     0    0.00000    0  180  125.00000    0.00000   100%     -    3s
     0     2    0.00000    0  180  125.00000    0.00000   100%     -    3s
H   37    37                      22.0000000    3.55556  83.8%  33.9    3s
*  109    85              41      21.0000000    3.60870  82.8%  31.9    3s
H  135    64                      19.0000000    5.42941  71.4%  30.2    3s
H  187    69                      18.0000000    5.79042  67.8%  27.6    3s
*  187    54              10      16.0000000    5.79042  63.8%  27.7    3s

Cutting planes:
  Gomory: 2

Explored 580 nodes (19320 simplex iterations) in 3.77 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%