Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:01:23 2012

Optimize a model with 218 rows, 631 columns and 631 nonzeros
Model has 434 quadratic constraints
Presolve removed 0 rows and 19 columns
Presolve time: 2.53s
Presolved: 218 rows, 612 columns, 612 nonzeros
Variable types: 434 continuous, 178 integer (177 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                     102.0000000          -     -      -    2s
     0     0    0.00000    0  128  102.00000    0.00000   100%     -    2s
     0     0    0.12566    0  149  102.00000    0.12566   100%     -    2s
     0     2    0.15280    0  149  102.00000    0.15280   100%     -    2s
*   33    32              19      16.0000000    1.77611  88.9%  29.6    2s
H   96    52                      14.0000000    4.00000  71.4%  31.1    2s
H  190    86                      13.0000000    4.69995  63.8%  31.5    2s
*  329    72              13      12.0000000    6.02797  49.8%  31.7    2s

Cutting planes:
  Gomory: 1

Explored 557 nodes (17764 simplex iterations) in 3.18 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%