Skip to content
GitLab
Projects
Groups
Snippets
Help
Loading...
Help
What's new
7
Help
Support
Community forum
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
Open sidebar
Jonas Kastberg
iris
Commits
042393e6
Commit
042393e6
authored
Dec 11, 2017
by
Ralf Jung
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
more experimental changelog
parent
df0f72f0
Changes
1
Hide whitespace changes
Inline
Side-by-side
Showing
1 changed file
with
8 additions
and
8 deletions
+8
-8
CHANGELOG.md
CHANGELOG.md
+8
-8
No files found.
CHANGELOG.md
View file @
042393e6
...
...
@@ -14,14 +14,14 @@ Changes in and extensions of the theory:
*
Constructions for least and greatest fixed points over monotone predicates
(defined in the logic of Iris using impredicative quantification).
*
Add a proof of the inverse of
`wp_bind`
.
*
Support verifying code that might get stuck by
distinguishing "non-stuck"
vs. "(potentially) stuck" weakest
preconditions. (See
[Swasey et al., OOPSLA '17] for examples.) The non-stuck
`WP e @ E {{ Φ }}`
ensures that, as
`e`
runs, it does not get stuck. The stuck
`WP e @ E ?{{ Φ
}}`
ensures that, as usual, all invariants are preserved while
`e`
runs, but
it permits execution to get stuck. The former implies the
latter. The full
judgment is
`WP e @ s; E {{ Φ }}`
, where non-stuck WP uses
*stuckness bit*
`s
= NotStuck`
while stuck WP uses
`s = MaybeStuck`
.
*
[Experimental feature]
Support verifying code that might get stuck by
distinguishing "non-stuck"
vs. "(potentially) stuck" weakest
preconditions. (See
[Swasey et al., OOPSLA '17] for examples.) The non-stuck
`WP e @ E {{ Φ }}`
ensures that, as
`e`
runs, it does not get stuck. The stuck
`WP e @ E ?{{ Φ
}}`
ensures that, as usual, all invariants are preserved while
`e`
runs, but
it permits execution to get stuck. The former implies the
latter. The full
judgment is
`WP e @ s; E {{ Φ }}`
, where non-stuck WP uses
*stuckness bit*
`s
= NotStuck`
while stuck WP uses
`s = MaybeStuck`
.
Changes in Coq:
...
...
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
.
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment