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Hard crash when setting up a homotopy with more functions then variables. #383

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@ElderStack

I set up the homotopy wrong however it hard crashes instead of throwing an error. Below is the homotopy and it crashes when I attempt to solve it.

mover = bertini.HomotopySolver(hom, startpoints, target)
results = mover.solve() #<- crash here

This is the homotopy:

1 variable group:
  group 0: x y z 

5 functions:
  f_0 = (x^2+y^2+z^2-1)*(y-x^2)*(x-2)
  f_1 = (x^2+y^2+z^2-1)*(z-x^3)*(y-2)
  f_2 = (x^2+y^2+z^2-1)*(z-x^3)*(y-x^2)*(z-2)
  f_3..f_4 = (1-t)*A + ((1793251369130129/5804064888416,4442615913964055/1976558544054797)*t)*B   (blend of 2 systems)

path variable: t

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