Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:16:19 2012

Optimize a model with 258 rows, 725 columns and 725 nonzeros
Model has 514 quadratic constraints
Presolve removed 0 rows and 12 columns
Presolve time: 3.00s
Presolved: 258 rows, 713 columns, 713 nonzeros
Variable types: 514 continuous, 199 integer (198 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          -     -      -    3s
     0     0    0.00000    0    5  113.00000    0.00000   100%     -    3s
     0     0    0.00000    0    2  113.00000    0.00000   100%     -    3s
     0     0    0.00000    0    6  113.00000    0.00000   100%     -    3s
     0     2    0.00000    0  145  113.00000    0.00000   100%     -    3s
H   40    40                      24.0000000    2.18769  90.9%  44.3    3s
H   48    48                      23.0000000    2.18769  90.5%  42.6    3s
*   62    48              40      22.0000000    2.18769  90.1%  38.8    3s
*  130    60              18      18.0000000    2.79167  84.5%  31.4    3s
   619   220    8.39286   22  411   18.00000    8.39286  53.4%  30.5    5s
* 1069   281              52      17.0000000    8.39286  50.6%  40.0    6s
  2516   286     cutoff   38        17.00000   11.50000  32.4%  38.2   10s
  3353   208   14.72941   33  419   17.00000   12.96154  23.8%  36.8   15s

Explored 3915 nodes (143774 simplex iterations) in 18.37 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%