Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:05:11 2012

Optimize a model with 220 rows, 639 columns and 639 nonzeros
Model has 438 quadratic constraints
Presolve removed 0 rows and 16 columns
Presolve time: 2.56s
Presolved: 220 rows, 623 columns, 623 nonzeros
Variable types: 438 continuous, 185 integer (184 binary)

Root relaxation: objective 0.000000e+00, 77 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

H    0     0                     108.0000000          -     -      -    2s
     0     0    0.00000    0    6  108.00000    0.00000   100%     -    2s
     0     0    0.00000    0   65  108.00000    0.00000   100%     -    2s
     0     0    0.00000    0    6  108.00000    0.00000   100%     -    2s
     0     2    0.00000    0  115  108.00000    0.00000   100%     -    2s
*   25    25              18      16.0000000    1.72222  89.2%  44.5    2s
H   51    37                      15.0000000    2.50746  83.3%  27.3    2s
H   76    42                      14.0000000    2.66667  81.0%  22.8    2s
*   78    28              13      12.0000000    2.66667  77.8%  23.5    2s
*   90    32              12      11.0000000    3.23944  70.6%  23.6    2s
H  188    64                      11.0000000    4.25000  61.4%  20.7    2s

Cutting planes:

Explored 553 nodes (11121 simplex iterations) in 3.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.099999999877e+01, best bound 1.099999999877e+01, gap 0.0%