Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:19 2012

Optimize a model with 1 rows, 40 columns and 40 nonzeros
Model has 71 quadratic objective terms
Presolve time: 0.00s
Presolved: 72 rows, 111 columns, 253 nonzeros
Variable types: 0 continuous, 111 integer (111 binary)
Found heuristic solution: objective 27.0000000

Root relaxation: objective 0.000000e+00, 89 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   32   27.00000    0.00000   100%     -    0s
     0     0    0.00000    0   39   27.00000    0.00000   100%     -    0s
H    0     0                      22.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   19   22.00000    0.00000   100%     -    0s
H    0     0                      19.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   32   19.00000    0.00000   100%     -    0s
     0     0    0.00000    0   23   19.00000    0.00000   100%     -    0s
H    0     0                      18.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   23   18.00000    0.00000   100%     -    0s
H  111    75                      16.0000000    0.00000   100%   5.8    0s
H  147    87                      14.0000000    1.00000  92.9%   6.2    0s
*  388    40               9      13.0000000    9.00000  30.8%  15.5    0s

Cutting planes:
  Cover: 140
  MIR: 4

Explored 432 nodes (6833 simplex iterations) in 0.11 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%