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Diffstat (limited to 'test-suite/bugs/closed/3641.v')
| -rw-r--r-- | test-suite/bugs/closed/3641.v | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test-suite/bugs/closed/3641.v b/test-suite/bugs/closed/3641.v new file mode 100644 index 00000000..f47f64ea --- /dev/null +++ b/test-suite/bugs/closed/3641.v @@ -0,0 +1,21 @@ +(* File reduced by coq-bug-finder from original input, then from 7593 lines to 243 lines, then from 256 lines to 102 lines, then from\ + 104 lines to 28 lines *) +(* coqc version trunk (September 2014) compiled on Sep 17 2014 0:22:30 with OCaml 4.01.0 + coqtop version cagnode16:/afs/csail.mit.edu/u/j/jgross/coq-trunk,trunk (d34e1eed232c84590ddb80d70db9f7f7cf13584a) *) +Set Implicit Arguments. +Record prod (A B : Type) := pair { fst : A ; snd : B }. +Notation "x * y" := (prod x y) : type_scope. +Notation "( x , y , .. , z )" := (pair .. (pair x y) .. z) : core_scope. +Class UnitSubuniverse := { O : Type -> Type ; O_unit : forall T, T -> O T }. +Class ReflectiveSubuniverse := { rsubu_usubu : UnitSubuniverse ; O_rectnd : forall {P Q : Type} (f : P -> Q), O P -> Q }. +Global Existing Instance rsubu_usubu. +Context {subU : ReflectiveSubuniverse}. +Goal forall (A B : Type) (x : O A * O B) (x0 : B), + { g : _ & O_rectnd (fun z : A * B => (O_unit (fst z), O_unit (snd z))) + (O_rectnd (fun a : A => O_unit (a, x0)) (fst x)) = + g x0 }. + eexists. + match goal with + | [ |- context[?e] ] => is_evar e; let e' := fresh "e'" in pose (e' := e) + end. + Fail change ?g with e'. (* Stack overflow *)
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