From 9043add656177eeac1491a73d2f3ab92bec0013c Mon Sep 17 00:00:00 2001 From: Benjamin Barenblat Date: Sat, 29 Dec 2018 14:31:27 -0500 Subject: Imported Upstream version 8.8.2 --- test-suite/bugs/closed/6070.v | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 test-suite/bugs/closed/6070.v (limited to 'test-suite/bugs/closed/6070.v') diff --git a/test-suite/bugs/closed/6070.v b/test-suite/bugs/closed/6070.v new file mode 100644 index 00000000..49b16f62 --- /dev/null +++ b/test-suite/bugs/closed/6070.v @@ -0,0 +1,32 @@ +(* A slight shortening of bug 6078 *) + +(* This bug exposed a different behavior of unshelve_unifiable + depending on which projection is found in the unification + heuristics *) + +Axiom flat_type : Type. +Axiom interp_flat_type : flat_type -> Type. +Inductive type := Arrow (_ _ : flat_type). +Definition interp_type (t : type) + := interp_flat_type (match t with Arrow s d => s end) + -> interp_flat_type (match t with Arrow s d => d end). +Axiom Expr : type -> Type. +Axiom Interp : forall {t : type}, Expr t -> interp_type t. +Axiom Wf : forall {t}, Expr t -> Prop. +Axiom a : forall f, interp_flat_type f. + +Definition packaged_expr_functionP A := + (fun F : Expr A -> Expr A + => forall e' v, Interp (F e') v = a (let (_,f) := A in f)). +Goal forall (f f0 : flat_type) + (e : forall _ : Expr (@Arrow f f0), + Expr (@Arrow f f0)), + @packaged_expr_functionP (@Arrow f f0) e. + intros. + refine (fun (e0 : Expr (Arrow f f0)) + => (fun zHwf':True => + (fun v : interp_flat_type f => + ?[G] : ?[U] = ?[V] :> interp_flat_type ?[v])) ?[H]); + [ | ]. + (* Was: Error: Tactic failure: Incorrect number of goals (expected 3 tactics). *) +Abort. -- cgit v1.2.3