Goal:
  
  __p1 : Prop
  __x1 : Z
  __wit := nil : list ZMicromega.ZArithProof
  __varmap := VarMap.Elt __x1 : VarMap.t Z
  __ff := Tauto.IMPL
            (Tauto.A Tauto.isProp
               {|
                 RingMicromega.Flhs := EnvRing.PEX 1;
                 RingMicromega.Fop := RingMicromega.OpLt;
                 RingMicromega.Frhs := EnvRing.PEX 1
               |} tt) None (Tauto.X Tauto.isProp __p1)
       : Tauto.BFormula (RingMicromega.Formula Z) Tauto.isProp
  ============================
   (BinInt.Z.lt __x1 __x1 -> __p1)


DEBUG:Going to execute:
exact
(ZMicromega.ZTautoChecker_sound __ff __wit
   (eq_refl <: ZMicromega.ZTautoChecker __ff __wit = true)
   (VarMap.find Z0 __varmap))