From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Jan Nieuwenhuizen Newsgroups: gmane.lisp.guile.user Subject: [ANN] Dezyne 2.15.0 released as Free Software Date: Fri, 06 May 2022 15:08:08 +0200 Organization: AvatarAcademy.nl Message-ID: <87r156n70n.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="5777"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) Cc: guile-user@gnu.org To: dezyne-devel@nongnu.org Original-X-From: guile-user-bounces+guile-user=m.gmane-mx.org@gnu.org Fri May 06 15:09:07 2022 Return-path: Envelope-to: guile-user@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nmxhj-0001M9-6J for guile-user@m.gmane-mx.org; Fri, 06 May 2022 15:09:07 +0200 Original-Received: from localhost ([::1]:38500 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nmxhh-00051n-UC for guile-user@m.gmane-mx.org; Fri, 06 May 2022 09:09:05 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:53572) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nmxgs-0004ow-W1; Fri, 06 May 2022 09:08:15 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:44752) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nmxgp-0006dn-L8; Fri, 06 May 2022 09:08:14 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-Version:Date:Subject:To:From:in-reply-to: references; bh=cooFCeAnjd9KwPZ6bKI3aLygqUpC9YZs5m+MXNs6VRo=; b=iKNa2Jmv9llq36 VG481zTUr4B7sEdTmGe7NnqeubfpWu5KI0mdC99+8fbFzNZ2WxiGX5RHevScLC0eQ9+/HP9O55+Wu LTahANmRKtEg/W3SOjHnaUSkjn0LRicL1pralBQPZaTd9s0t7GjkA/gAWyC1qDZ8ncxCfBuFiZsO2 iMpHDrPLumIBeXW9DRL5VXOdpcfYR2t3zneO8eyrH1FplxsfLv/+EwvUj3PrcnUpGwVyAa2mHh5B1 G788A0jF1VlCoMwaqRHBGADfyaUhmjkN3ie8+xLyUjy+CuP6nsu76rXKJW+IKmu4yb7mdmLx5/xRW Nn4wxuF6UZHc8eKIdBWw==; Original-Received: from 2a02-a462-da03-1-fa3e-1174-c33f-9485.fixed6.kpn.net ([2a02:a462:da03:1:fa3e:1174:c33f:9485]:53580 helo=drakenbij.janneke.lilypond.org) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nmxgp-0003yB-8Y; Fri, 06 May 2022 09:08:11 -0400 X-Url: http://AvatarAcademy.nl X-BeenThere: guile-user@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Guile related discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guile-user-bounces+guile-user=m.gmane-mx.org@gnu.org Original-Sender: "guile-user" Xref: news.gmane.io gmane.lisp.guile.user:18264 Archived-At: We are thrilled to announce Dezyne 2.15: Dezyne is now being released as Free Software (FLOSS). * About Dezyne[0] is a programming language and a set of tools to specify, validate, verify, simulate, document, and implement concurrent control software. The Dezyne language has formal semantics expressed in mCRL2[1] developed at the department of Mathematics and Computer Science of the Eindhoven University of Technology (TUE[2]). Dezyne requires that every model is finite, deterministic and free of deadlocks, livelocks, and contract violations. This achieved by means of the language itself as well as by builtin verification through model checking. This allows the construction of complex systems by assembling independently verified components. * Summary This release completes full support for blocking: This finally marks the Grand Unification into single threaded execution semantics. The documentation has seen a major rewrite and is available here: . We will evaluate your reports and track them via the Gitlab dezyne-issues project[3], see our guide to writing helpful bug reports[4]. * What's next? Verification with system scope and automatically exploring possible traces in a system. Introducing a new keyword `defer' for asynchronous behavior and deprecation of `async'. * Future Looking beyond the next releases we will introduce implicit interface constraints. Hierarchical behaviors, module-specifications and data-interfaces. Support for Model Based Testing. Please do not hesitate to forward this announcement to other fora interested in formal methods and verification! Enjoy! The Dezyne developers. * Download git clone git://git.savannah.nongnu.org/dezyne.git Here are the compressed sources and a GPG detached signature[*]: https://dezyne.org/download/dezyne/dezyne-2.15.0.tar.gz https://dezyne.org/download/dezyne/dezyne-2.15.0.tar.gz.sig Here are the SHA1 and SHA256 checksums: 395ff05e4f2c17bcee895fd9436d696fb0aab93d dezyne-2.15.0.tar.gz 982d8f7cca9de23225e2f06b4c8524c0b57acfba81beaaff1a0c045c1e6409ea dezyn= e-2.15.0.tar.gz [*] Use a .sig file to verify that the corresponding file (without the .sig suffix) is intact. First, be sure to download both the .sig file and the corresponding tarball. Then, run a command like this: gpg --verify dezyne-2.15.0.tar.gz.sig If that command fails because you don't have the required public key, then run this command to import it: gpg --keyserver keys.gnupg.net --recv-keys 1A858392E331EAFDB8C27FFBF3C1= A0D9C1D65273 and rerun the 'gpg --verify' command. Alternatively, Dezyne can be installed using GNU Guix[5]: guix pull guix install dezyne * NEWS * Changes in 2.15.0 since 2.14.0 ** Language - Blocking is now fully supported, it may be used: + In non-toplevel components, + In a component with multiple provides ports, but see the `Blocking' section in the manual for caveats. + A new `blocking' qualifier for ports must be used if a port can block, or block collateraly. - Using unobservable non-determinism in interfaces is no longer supported. - An action or function call can now also be used in a return expression (#67[5]). Note that recursive functions still cannot be valued. ** Commands - The `dzn explore' command has been removed. ** Verification - The verifier now supports blocking for components with multiple provides ports. - The verifier now detects possible deadlock errors due to a requires action blocking collaterally, which could happen when a component deeper in the system hierarchy uses blocking. - The option `--no-interface-determinism' has been removed for `dzn verify'. ** Simulation - The simulator now supports collateral blocking. - In interactive mode: + The new `,state' command shows the state (#66[6]), + The new `,quit' command exits the session, + The simulator does not exit when supplying empty input. - The simulator now detects possible deadlock errors due to a requires action blocking collaterally, which could happen when a component deeper in the system hierarchy uses blocking. - The simulator now detects livelocks in interfaces at end of trail. - The simulator now detects queue-full errors caused by external at end of trail. - The `dzn simulate' command now supports the `-C,--no-compliance', `--no-interface-livelock' and `-Q,--no-queue-full' options, ** Code - The C++ and C# code generators and runtime now fully support collaterally blocking components. ** Views - Returns are no longer removed from the state-diagram. Using the new `--hide=3Dreturns' (or `--hide=3Dactions') now removes void action returns. ** Documentation - Blocking has been updated and extended. - A new section on foreign components was added. ** Noteworthy bug fixes - Using the construct `provides external' (which has no semantics) no longer confuses the simulator. - A bug has been fixed that would cause the well-welformness check for system bindings to ignore certain missing bindings. - A bug has been fixed when assigning a value to a formal parameter of a function. - A bug has been fixed in the vm that would cause graph or simulate to hang when using a foreign component that has both provides and requires ports (note: don't do that!). - The test framework can be built using gcc-11. - A bug has been fixed in the code generator when assiging to a local variable that shadows a formal parameter or member variable. - A bug has been fixed in the verifier when creating a new local variable or assigning a variable that remains otherwise unused. - The simulation function now supports injection of foreign components. - The trace produced by running dezyne code is now correct when using injected foreign components. - A bug has been fixed that would cause the verifier to overlook non-determinism in a component. - Using external data in binary expressions is now reported as an error (#64[7]). - The parser no longer reports "" expected when an external type definition is missing. - The well-formedness check of the parser no longer hangs when a component has the same name as one of its interfaces. - An interface can now have the same name as its namespace. * Links [0] https://dezyne.org [1] https://mcrl2.org [2] https://tue.nl [3] https://gitlab.com/groups/dezyne/-/issues [4] https://dezyne.org/bugreport [5] https://gitlab.com/dezyne/dezyne-issues/-/issues/67 [6] https://gitlab.com/dezyne/dezyne-issues/-/issues/66 [7] https://gitlab.com/dezyne/dezyne-issues/-/issues/61 --=20 Jan Nieuwenhuizen | GNU LilyPond https://lilypond.org Freelance IT https://JoyOfSource.com | Avatar=C2=AE https://AvatarAcademy.c= om