Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:24 2012

Optimize a model with 1 rows, 36 columns and 36 nonzeros
Model has 66 quadratic objective terms
Presolve time: 0.00s
Presolved: 67 rows, 102 columns, 234 nonzeros
Variable types: 0 continuous, 102 integer (102 binary)
Found heuristic solution: objective 24.0000000

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

     0     0    0.00000    0   24   24.00000    0.00000   100%     -    0s
H    0     0                      22.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   25   22.00000    0.00000   100%     -    0s
     0     0    0.00000    0   21   22.00000    0.00000   100%     -    0s
H    0     0                      20.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   21   20.00000    0.00000   100%     -    0s
     0     0    0.00000    0   30   20.00000    0.00000   100%     -    0s
     0     0    0.00000    0   30   20.00000    0.00000   100%     -    0s
H    0     0                      19.0000000    0.00000   100%     -    0s
H    0     0                      18.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   22   18.00000    0.00000   100%     -    0s
H   15    15                      17.0000000    0.00000   100%   3.6    0s
H   77    54                      15.0000000    0.00000   100%   4.0    0s
H  162    67                      12.0000000    0.00000   100%   6.4    0s

Cutting planes:
  Cover: 127

Explored 263 nodes (4087 simplex iterations) in 0.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%