Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:56 2012

Optimize a model with 1 rows, 57 columns and 57 nonzeros
Model has 95 quadratic objective terms
Presolve time: 0.00s
Presolved: 96 rows, 152 columns, 342 nonzeros
Variable types: 0 continuous, 152 integer (152 binary)
Found heuristic solution: objective 40.0000000

Root relaxation: objective 0.000000e+00, 125 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   36   40.00000    0.00000   100%     -    0s
H    0     0                      36.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   31   36.00000    0.00000   100%     -    0s
H    0     0                      31.0000000    0.00000   100%     -    0s
H    0     0                      30.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   25   30.00000    0.00000   100%     -    0s
H    0     0                      22.0000000    0.00000   100%     -    0s
H    0     0                      21.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   34   21.00000    0.00000   100%     -    0s
     0     0    0.00000    0   29   21.00000    0.00000   100%     -    0s
H    0     0                      20.0000000    0.00000   100%     -    0s
H    0     0                      19.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   29   19.00000    0.00000   100%     -    0s
H  154   125                      17.0000000    0.00000   100%   6.3    0s
H  157   122                      16.0000000    0.00000   100%   6.3    0s
H  232   129                      14.0000000    1.00000  92.9%   8.4    0s

Cutting planes:
  Cover: 183

Explored 657 nodes (14807 simplex iterations) in 0.26 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%