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Fix an unstable proof #39

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Merged
y1ca1 merged 2 commits into from
Feb 21, 2026
Merged

Fix an unstable proof #39

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ce1fa7a
Fix an unstable proof (thanks to a patch from Chris), so that Vest works
parno Feb 19, 2026
02b700c
We don't actually need to bump the vstd version up; the proof still
parno Feb 19, 2026
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4 changes: 1 addition & 3 deletions vest/Cargo.toml
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
[package]
name = "vest_lib"
version = "0.0.1"
version = "0.0.2"
edition = "2021"
license = "MIT"
description = "VestLib: A library of formally verified parser and serializer combinators"
Expand All @@ -18,8 +18,6 @@ std = []

[dependencies]
vstd = "=0.0.0-2026-01-11-0057"
#verus_builtin = "0.0.0-2025-08-12-1837"
#verus_builtin_macros = "0.0.0-2025-12-07-0054"

#vstd = { git = "https://github.com/verus-lang/verus", branch = "main" }
#verus_builtin = { git = "https://github.com/verus-lang/verus", branch = "main" }
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1 change: 1 addition & 0 deletions vest/src/regular/variant.rs
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Expand Up @@ -508,6 +508,7 @@ impl<Fst, Snd> SecureSpecCombinator for OptThen<Fst, Snd> where
}

proof fn lemma_prefix_secure(&self, s1: Seq<u8>, s2: Seq<u8>) {
vstd::slice::axiom_slice_ext_equal(&[true], &[true]);
if Fst::is_prefix_secure() && Snd::is_prefix_secure() {
self.0.0.0.lemma_prefix_secure(s1, s2);
self.0.0.lemma_parse_length(s1);
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