Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:37 2012

Optimize a model with 1 rows, 37 columns and 37 nonzeros
Model has 73 quadratic objective terms
Presolve time: 0.00s
Presolved: 74 rows, 110 columns, 256 nonzeros
Variable types: 0 continuous, 110 integer (110 binary)
Found heuristic solution: objective 37.0000000

Root relaxation: objective 0.000000e+00, 92 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   37.00000    0.00000   100%     -    0s
H    0     0                      31.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   27   31.00000    0.00000   100%     -    0s
H    0     0                      27.0000000    0.00000   100%     -    0s
H    0     0                      20.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   23   20.00000    0.00000   100%     -    0s
     0     0    0.00000    0   26   20.00000    0.00000   100%     -    0s
     0     0    0.00000    0   33   20.00000    0.00000   100%     -    0s
     0     0    0.00000    0   27   20.00000    0.00000   100%     -    0s
     0     2    0.00000    0   27   20.00000    0.00000   100%     -    0s
H   78    55                      18.0000000    0.00000   100%   5.0    0s
*   85    58              20      17.0000000    0.00000   100%   5.4    0s
H  179    91                      16.0000000    1.00000  93.8%   7.5    0s
*  296    89              16      15.0000000    4.66667  68.9%  10.4    0s
*  357    56               7      14.0000000    8.00000  42.9%  12.6    0s

Cutting planes:
  Cover: 139

Explored 423 nodes (5650 simplex iterations) in 0.10 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%