Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:59:43 2012

Optimize a model with 255 rows, 732 columns and 732 nonzeros
Model has 508 quadratic constraints
Presolve removed 0 rows and 15 columns
Presolve time: 2.96s
Presolved: 255 rows, 717 columns, 717 nonzeros
Variable types: 508 continuous, 209 integer (208 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                     126.0000000          -     -      -    2s
     0     0    0.00000    0   81  126.00000    0.00000   100%     -    2s
     0     0    0.00000    0  123  126.00000    0.00000   100%     -    3s
     0     0    0.00000    0   97  126.00000    0.00000   100%     -    3s
     0     2    0.00000    0   97  126.00000    0.00000   100%     -    3s
H   54    54                      23.0000000    2.18710  90.5%  36.0    3s
*   55    53              39      20.0000000    2.18710  89.1%  35.5    3s
*   91    55              28      18.0000000    2.68605  85.1%  32.7    3s
*  181    97              27      17.0000000    3.00000  82.4%  27.5    3s
   636   303   14.23001   26  338   17.00000    7.51695  55.8%  27.4    5s
* 1631   316              41      16.0000000    8.76132  45.2%  32.1    7s
H 1770   269                      15.0000000    9.15625  39.0%  32.6    7s
  2888    31     cutoff   35        15.00000   13.58161  9.46%  34.3   10s

Explored 2922 nodes (102784 simplex iterations) in 10.04 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%