Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:41:21 2012

Optimize a model with 1 rows, 42 columns and 42 nonzeros
Model has 76 quadratic objective terms
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 77 rows, 117 columns, 269 nonzeros
Variable types: 0 continuous, 117 integer (116 binary)
Found heuristic solution: objective 30.0000000

Root relaxation: objective 0.000000e+00, 91 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    0.00000    0   32   30.00000    0.00000   100%     -    0s
     0     0    0.00000    0   25   30.00000    0.00000   100%     -    0s
H    0     0                      23.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   69   23.00000    0.00000   100%     -    0s
     0     0    0.00000    0   27   23.00000    0.00000   100%     -    0s
     0     2    0.00000    0   25   23.00000    0.00000   100%     -    0s
H   81    60                      22.0000000    0.00000   100%   3.4    0s
H  107    75                      18.0000000    0.00000   100%   4.4    0s
*  183   103              14      17.0000000    1.00000  94.1%   9.9    0s
H  337   108                      16.0000000    5.00000  68.8%  12.7    0s
*  342    91              10      15.0000000    5.00000  66.7%  13.2    0s
*  435    62               7      14.0000000    8.57143  38.8%  14.7    0s

Cutting planes:
  Cover: 145

Explored 521 nodes (8090 simplex iterations) in 0.14 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%