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

Optimize a model with 231 rows, 663 columns and 663 nonzeros
Model has 460 quadratic constraints
Presolve removed 0 rows and 22 columns
Presolve time: 2.68s
Presolved: 231 rows, 641 columns, 641 nonzeros
Variable types: 460 continuous, 181 integer (180 binary)

Root relaxation: objective 0.000000e+00, 81 iterations, 0.00 seconds

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

H    0     0                     130.0000000          -     -      -    2s
     0     0    0.00000    0    2  130.00000    0.00000   100%     -    2s
     0     0    0.00000    0  110  130.00000    0.00000   100%     -    2s
     0     0    0.00000    0   90  130.00000    0.00000   100%     -    2s
     0     2    0.00000    0   85  130.00000    0.00000   100%     -    2s
*   35    33              26      21.0000000    2.14286  89.8%  44.4    2s
*   65    43              15      20.0000000    2.93548  85.3%  39.6    2s
H  157    65                      18.0000000    3.34146  81.4%  25.6    2s
*  242    77              18      17.0000000    3.66667  78.4%  21.4    3s
*  416    83              16      14.0000000    7.04029  49.7%  18.6    3s
*  582    54              12      12.0000000    8.43529  29.7%  19.8    3s

Cutting planes:

Explored 727 nodes (15721 simplex iterations) in 3.38 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%