Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:23:19 2012

Optimize a model with 235 rows, 683 columns and 683 nonzeros
Model has 468 quadratic constraints
Presolve removed 0 rows and 18 columns
Presolve time: 2.73s
Presolved: 235 rows, 665 columns, 665 nonzeros
Variable types: 468 continuous, 197 integer (196 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                     104.0000000          -     -      -    2s
     0     0    0.00000    0   84  104.00000    0.00000   100%     -    2s
     0     0    0.00000    0  119  104.00000    0.00000   100%     -    2s
     0     0    0.00000    0   81  104.00000    0.00000   100%     -    2s
     0     2    0.00000    0   81  104.00000    0.00000   100%     -    2s
H   40    39                      14.0000000    2.88235  79.4%  35.5    2s
*   40    34              30      13.0000000    2.88235  77.8%  35.8    2s
*  824   152              28      12.0000000    8.80723  26.6%  30.5    4s
   863   142    9.12500   21  542   12.00000    8.80723  26.6%  30.9    5s

Explored 1487 nodes (56947 simplex iterations) in 6.33 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%