Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:46:33 2012

Optimize a model with 1 rows, 46 columns and 46 nonzeros
Model has 89 quadratic objective terms
Presolve time: 0.00s
Presolved: 90 rows, 135 columns, 313 nonzeros
Variable types: 0 continuous, 135 integer (135 binary)
Found heuristic solution: objective 36.0000000
Found heuristic solution: objective 33.0000000

Root relaxation: objective 0.000000e+00, 107 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   31   33.00000    0.00000   100%     -    0s
H    0     0                      26.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   38   26.00000    0.00000   100%     -    0s
H    0     0                      24.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   19   24.00000    0.00000   100%     -    0s
H    0     0                      19.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   31   19.00000    0.00000   100%     -    0s
     0     0    0.00000    0   26   19.00000    0.00000   100%     -    0s
H    0     0                      18.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   26   18.00000    0.00000   100%     -    0s
*  171   103              14      17.0000000    0.50000  97.1%   6.8    0s
*  174    96              12      16.0000000    0.50000  96.9%   6.7    0s
*  274    91              13      15.0000000    1.50000  90.0%  11.7    0s

Cutting planes:
  Gomory: 1
  Cover: 169

Explored 423 nodes (9016 simplex iterations) in 0.15 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%