-- The following numbers could not be lifted on my machine:
-- (If needed I can produce more examples.)
a =-1.428571429e-01
lift(a,QQ)
a = 4.537815126e-01
lift(a,QQ)
a = 5.923344948e-02
lift(a,QQ)
a = -7.481504637e-02
lift(a,QQ) 
a = -1.984139325e-01
lift(a,QQ)
