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Manually handle some cases where t_mytrivial is too weak #848

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Merged
oskgo merged 1 commit into from
Dec 18, 2025
Merged

Manually handle some cases where t_mytrivial is too weak #848

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2 changes: 1 addition & 1 deletion src/phl/ecPhlConseq.ml
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Expand Up @@ -1120,7 +1120,7 @@ let rec t_hi_conseq notmod f1 f2 f3 tc =
t_intros_i [m;h0] @! t_cutdef
(ptlocal ~args:[pamemory m; palocal h0] hi)
mpre @! EcLowGoal.t_trivial;
t_mytrivial;
t_mytrivial @! t_intros_i [m; h0] @! t_apply_hyp h0;
t_apply_hyp hh];
tac pre posta @+ [
t_apply_hyp hi;
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14 changes: 14 additions & 0 deletions tests/conseq_phoare_hoare.ec
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@@ -0,0 +1,14 @@
require import Real.

module Foo = {proc foo() = {}}.

lemma foo_ll : islossless Foo.foo by islossless.

op [opaque] p = predT<:int>.

lemma foo_h: hoare [ Foo.foo : true ==> forall j, p j].
proof. by proc; auto => /> j; rewrite /p. qed.

lemma foo_p: phoare[ Foo.foo : true ==> forall j, p j] = 1%r.
by conseq foo_ll foo_h.
qed.
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