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 69 quadratic objective terms
Presolve time: 0.00s
Presolved: 70 rows, 105 columns, 243 nonzeros
Variable types: 0 continuous, 105 integer (105 binary)
Found heuristic solution: objective 33.0000000

Root relaxation: objective 0.000000e+00, 87 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   34   33.00000    0.00000   100%     -    0s
H    0     0                      31.0000000    0.00000   100%     -    0s
H    0     0                      29.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   24   29.00000    0.00000   100%     -    0s
H    0     0                      24.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   33   24.00000    0.00000   100%     -    0s
     0     0    0.00000    0   30   24.00000    0.00000   100%     -    0s
H    0     0                      21.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   21   21.00000    0.00000   100%     -    0s
H   21    21                      18.0000000    0.00000   100%   2.6    0s
H   85    58                      17.0000000    0.00000   100%   4.4    0s
H   94    67                      16.0000000    0.00000   100%   4.6    0s
H  242    91                      15.0000000    2.00000  86.7%  10.2    0s

Cutting planes:
  Cover: 132

Explored 499 nodes (8151 simplex iterations) in 0.13 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%