∀ {w : ℕ} (lw : ℕ) (llhs : Std.Tactic.BVDecide.BVExpr w) (lrhs : Std.Tactic.BVDecide.BVExpr lw) (w_1 start : ℕ)
  (expr : Std.Tactic.BVDecide.BVExpr w_1), ¬llhs.arithShiftRight lrhs = Std.Tactic.BVDecide.BVExpr.extract start w expr