From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f849b,b8d52151b7b306d2 X-Google-Attributes: gidf849b,public X-Google-Thread: 103376,a00006d3c4735d70 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2004-01-10 18:43:04 PST Path: archiver1.google.com!news2.google.com!news.maxwell.syr.edu!newsfeed.mathworks.com!wn11feed!worldnet.att.net!199.45.49.37!cyclone1.gnilink.net!spamkiller2.gnilink.net!nwrdny01.gnilink.net.POSTED!0e8a908a!not-for-mail From: Hyman Rosen User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6b) Gecko/20031205 Thunderbird/0.4 X-Accept-Language: en-us, en MIME-Version: 1.0 Newsgroups: comp.arch.embedded,comp.lang.ada Subject: Re: Certified C compilers for safety-critical embedded systems References: <3fe00b82.90228601@News.CIS.DFN.DE> <5802069.JsgInS3tXa@linux1.krischik.com> <1072464162.325936@master.nyc.kbcfp.com> <1563361.SfB03k3vvC@linux1.krischik.com> <11LvOkBBXw7$EAJw@phaedsys.demon.co.uk> <3ff0687f.528387944@News.CIS.DFN.DE> <1086072.fFeiH4ICbz@linux1.krischik.com> <3ff18d4d.603356952@News.CIS.DFN.DE> <1731094.1f7Irsyk1h@linux1.krischik.com> <3ff1b8ef.614528516@News.CIS.DFN.DE> <3FF1E06D.A351CCB4@yahoo.com> <3ff20cc8.635997032@News.CIS.DFN.DE> Organization: LJK Software In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Message-ID: Date: Sun, 11 Jan 2004 02:43:01 GMT NNTP-Posting-Host: 162.84.196.162 X-Complaints-To: abuse@verizon.net X-Trace: nwrdny01.gnilink.net 1073788981 162.84.196.162 (Sat, 10 Jan 2004 21:43:01 EST) NNTP-Posting-Date: Sat, 10 Jan 2004 21:43:01 EST Xref: archiver1.google.com comp.arch.embedded:7245 comp.lang.ada:4320 Date: 2004-01-11T02:43:01+00:00 List-Id: Robert I. Eachus wrote: > The Airbus 320 should bury the idea that theorem provers can result in > safe software. It's always been my contention that writing the specifications which you will then prove that a program obeys is exactly as hard as writing the program itself.