Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:10:37 2012

Optimize a model with 241 rows, 687 columns and 687 nonzeros
Model has 480 quadratic constraints
Presolve removed 0 rows and 14 columns
Presolve time: 2.79s
Presolved: 241 rows, 673 columns, 673 nonzeros
Variable types: 480 continuous, 193 integer (192 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                     114.0000000          -     -      -    2s
     0     0    0.00000    0    6  114.00000    0.00000   100%     -    2s
     0     0    0.00000    0    2  114.00000    0.00000   100%     -    2s
     0     0    0.00000    0    2  114.00000    0.00000   100%     -    2s
     0     2    0.00000    0  145  114.00000    0.00000   100%     -    2s
H   43    43                      18.0000000    1.42834  92.1%  41.4    3s
*   45    45              30      16.0000000    1.42834  91.1%  40.5    3s
H  466   170                      15.0000000    7.30710  51.3%  27.0    3s
   703   219    8.78531   21  426   15.00000    8.25000  45.0%  38.6    5s
*  749   221              40      14.0000000    8.25000  41.1%  40.8    5s
*  773   208              39      13.0000000    8.25000  36.5%  41.3    5s

Explored 921 nodes (38312 simplex iterations) in 5.60 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%