data whileTestState  : Set where
  s1 : whileTestState
  s2 : whileTestState
  sf : whileTestState


whileTestStateP : whileTestState @$\rightarrow$@ Envc @$\rightarrow$@  Set
whileTestStateP s1 env = (vari env @$\equiv$@ 0) @$\wedge$@ (varn env @$\equiv$@ c10 env)
whileTestStateP s2 env = (varn env + vari env @$\equiv$@ c10 env)
whileTestStateP sf env = (vari env @$\equiv$@ c10 env)