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-rw-r--r--backend/Tailcallproof.v2
1 files changed, 1 insertions, 1 deletions
diff --git a/backend/Tailcallproof.v b/backend/Tailcallproof.v
index 791db37..1423e1e 100644
--- a/backend/Tailcallproof.v
+++ b/backend/Tailcallproof.v
@@ -722,7 +722,7 @@ Qed.
[Smallstep.simulation_opt_preservation]. *)
Theorem transf_program_correct:
- forall (beh: program_behavior),
+ forall (beh: program_behavior), not_wrong beh ->
exec_program prog beh -> exec_program tprog beh.
Proof.
unfold exec_program; intros.