Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:07:33 2012

Optimize a model with 235 rows, 672 columns and 672 nonzeros
Model has 468 quadratic constraints
Presolve removed 0 rows and 16 columns
Presolve time: 2.72s
Presolved: 235 rows, 656 columns, 656 nonzeros
Variable types: 468 continuous, 188 integer (187 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                     113.0000000          -     -      -    2s
     0     0    0.00000    0   26  113.00000    0.00000   100%     -    2s
     0     0    0.00000    0   18  113.00000    0.00000   100%     -    2s
     0     0    0.00000    0    3  113.00000    0.00000   100%     -    2s
     0     2    0.00000    0    3  113.00000    0.00000   100%     -    2s
*   35    32              22      19.0000000    0.00000   100%  51.3    2s
*   67    53              23      18.0000000    0.00000   100%  41.5    2s
*  184   109              20      16.0000000    2.06000  87.1%  28.7    3s
*  339   136              17      15.0000000    3.54430  76.4%  27.4    3s
   741   247    6.32074   26  393   15.00000    6.32074  57.9%  38.0    5s

Explored 3271 nodes (98987 simplex iterations) in 9.25 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%