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Path: ...!news.snarked.org!weretis.net!feeder9.news.weretis.net!news.quux.org!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: "Fred. Zwarts" <F.Zwarts@HetNet.nl> Newsgroups: comp.theory Subject: Re: Sufficient knowledge of C proves that DD specifies non-terminating behavior to HHH Date: Mon, 17 Feb 2025 21:16:46 +0100 Organization: A noiseless patient Spider Lines: 256 Message-ID: <vp05ff$19vgo$1@dont-email.me> References: <vnumf8$24cq0$1@dont-email.me> <vocpt8$16c4e$5@dont-email.me> <7ad847dee2cf3bc54cddc66a1e521f8a7242c01f@i2pn2.org> <vod3ft$18eoa$1@dont-email.me> <50488790b3d697cccde5689919b1d1d001b01965@i2pn2.org> <vodrkt$1d1gu$1@dont-email.me> <cdaa950d75c0b258288974055228e93f38067535@i2pn2.org> <voft9v$1rkco$1@dont-email.me> <e351c3a68fe9fffc21c6b82a50743305af794dd0@i2pn2.org> <vojrqp$2oikq$3@dont-email.me> <ffb46665a51356faf0fa3b56db966a31812e8134@i2pn2.org> <vokon8$2t882$1@dont-email.me> <vol0mf$2ulu5$1@dont-email.me> <vom1q4$34osr$3@dont-email.me> <von3q8$3d901$1@dont-email.me> <vone2v$3ffar$3@dont-email.me> <vonibr$3g195$1@dont-email.me> <voobvq$3kga9$1@dont-email.me> <vophu2$3ufag$1@dont-email.me> <voqpf6$5k6g$1@dont-email.me> <vosc1j$h568$2@dont-email.me> <vosnea$jd5m$2@dont-email.me> <voth2j$o3pk$1@dont-email.me> <votn62$pb7c$2@dont-email.me> <voutp5$12hqt$1@dont-email.me> <vovfov$15ohc$1@dont-email.me> <vovlfh$160g5$1@dont-email.me> <vovqjp$17scr$1@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Mon, 17 Feb 2025 21:16:48 +0100 (CET) Injection-Info: dont-email.me; posting-host="59f2eddee30bf788b32be6c220c2bf66"; logging-data="1375768"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX180a6IL9RiBTTjlh5CRNNxK" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:QZnJ5uX+ncxraxHgmio6l1n3QDo= Content-Language: nl, en-GB In-Reply-To: <vovqjp$17scr$1@dont-email.me> Bytes: 15928 Op 17.feb.2025 om 18:11 schreef olcott: > On 2/17/2025 9:43 AM, Fred. Zwarts wrote: >> Op 17.feb.2025 om 15:06 schreef olcott: >>> On 2/17/2025 2:59 AM, Fred. Zwarts wrote: >>>> Op 16.feb.2025 om 23:00 schreef olcott: >>>>> On 2/16/2025 2:16 PM, Fred. Zwarts wrote: >>>>>> Op 16.feb.2025 om 13:58 schreef olcott: >>>>>>> On 2/16/2025 3:44 AM, Fred. Zwarts wrote: >>>>>>>> Op 15.feb.2025 om 20:21 schreef olcott: >>>>>>>>> On 2/15/2025 2:06 AM, Fred. Zwarts wrote: >>>>>>>>>> Op 14.feb.2025 om 22:18 schreef olcott: >>>>>>>>>>> On 2/14/2025 8:01 AM, Fred. Zwarts wrote: >>>>>>>>>>>> Op 14.feb.2025 om 13:48 schreef olcott: >>>>>>>>>>>>> On 2/14/2025 3:53 AM, Fred. Zwarts wrote: >>>>>>>>>>>>>> Op 14.feb.2025 om 01:12 schreef olcott: >>>>>>>>>>>>>>> On 2/13/2025 8:47 AM, Fred. Zwarts wrote: >>>>>>>>>>>>>>>> Op 13.feb.2025 om 13:31 schreef olcott: >>>>>>>>>>>>>>>>> On 2/13/2025 3:16 AM, joes wrote: >>>>>>>>>>>>>>>>>> Am Wed, 12 Feb 2025 22:18:32 -0600 schrieb olcott: >>>>>>>>>>>>>>>>>>> On 2/11/2025 2:05 PM, joes wrote: >>>>>>>>>>>>>>>>>>>> Am Tue, 11 Feb 2025 10:19:11 -0600 schrieb olcott: >>>>>>>>>>>>>>>>>>>>> On 2/11/2025 9:23 AM, joes wrote: >>>>>>>>>>>>>>>>>>>>>> Am Mon, 10 Feb 2025 15:38:37 -0600 schrieb olcott: >>>>>>>>>>>>>>>>>>>>>>> On 2/10/2025 2:48 PM, joes wrote: >>>>>>>>>>>>>>>>>>>>>>>> Am Mon, 10 Feb 2025 08:46:21 -0600 schrieb olcott: >>>>>>>>>>>>>>>>>>>>>>>>> On 2/10/2025 6:52 AM, joes wrote: >>>>>>>>>>>>>>>>>>>>>>>>>> Am Mon, 10 Feb 2025 06:02:48 -0600 schrieb >>>>>>>>>>>>>>>>>>>>>>>>>> olcott: >>>>>>>>>>>>>>>>>>>>>>>>>>> On 2/10/2025 5:16 AM, joes wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>> Am Sun, 09 Feb 2025 13:54:39 -0600 schrieb >>>>>>>>>>>>>>>>>>>>>>>>>>>> olcott: >>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 2/9/2025 1:33 PM, Fred. Zwarts wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Op 09.feb.2025 om 20:04 schreef olcott: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 2/9/2025 12:54 PM, Fred. Zwarts wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Op 09.feb.2025 om 18:00 schreef olcott: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 2/9/2025 10:50 AM, Fred. Zwarts wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Op 09.feb.2025 om 16:18 schreef olcott: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 2/9/2025 2:13 AM, Fred. Zwarts wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Op 09.feb.2025 om 07:10 schreef olcott: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 2/8/2025 3:54 PM, Fred. Zwarts >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Op 08.feb.2025 om 15:47 schreef >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> olcott: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 2/8/2025 3:57 AM, Fred. Zwarts >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Op 08.feb.2025 om 06:53 schreef >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> olcott: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 2/7/2025 7:27 PM, Richard >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Damon wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 2/7/25 8:12 PM, olcott wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 2/7/2025 5:56 PM, Richard >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Damon wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 2/7/25 11:26 AM, olcott >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 2/7/2025 6:20 AM, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Richard Damon wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 2/6/25 10:02 PM, olcott >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 2/6/2025 8:21 PM, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Richard Damon wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 2/6/25 5:18 PM, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> olcott wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 2/6/2025 1:51 PM, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Richard Damon wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 2/6/25 1:26 PM, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> olcott wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 2/6/2025 10:52 AM, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Bonita Montero >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Which proves that HHH fails to >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> make a correct >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> decision about DD's halting >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> behaviour. All other >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> methods (direct execution, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> simulation by a world class >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> simulator, etc.) show >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> that DD halts. But HHH fails to >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> see it. Everyone with >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> sufficient understanding of >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> programming sees that HHH >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> is not correctly programmed when >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> it aborts one cycle >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> before the simulation would end >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> normally. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The execution trace only shows that >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> HHH is unable to >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> complete its simulation, because HHH >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> is unable to >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> simulate itself. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> It turns out that Olcott does not even >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> understand this >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> simple proof that HHH produces false >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> negatives. HHH is >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> unable to simulate itself up to the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> normal termination. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> So, in other words, Olcott denies >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> verified facts. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> HHH generates false negatives, as is >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> verified in >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> int main() { >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> return HHH(main); >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> } >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> but he denies it. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> He lacks the ability to accept simple >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> verified facts, which >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> he tries to hide with a lot of >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> irrelevant words. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> It is a verified fact that main cannot >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> possibly be correctly >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> simulated by HHH until its normal >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> termination. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Indeed, which proves that HHH is unable to >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> simulate itself >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> correctly. >>>>>>>>>>>>>>>>>>>>>>>>>>>>> If this was true then you could point out >>>>>>>>>>>>>>>>>>>>>>>>>>>>> exactly where HHH is >>>>>>>>>>>>>>>>>>>>>>>>>>>>> incorrect. >>>>>>>>>>>>>>>>>>>>>>>>>>>> HHH is supposed to be a decider, i.e. halt >>>>>>>>>>>>>>>>>>>>>>>>>>>> and return the >>>>>>>>>>>>>>>>>>>>>>>>>>>> correct value. >>>>>>>>>>>>>>>>>>>>>>>>>>> The directly executed HHH(DD) always halts >>>>>>>>>>>>>>>>>>>>>>>>>>> and returns a correct >>>>>>>>>>>>>>>>>>>>>>>>>>> value as soon as it correctly determines that >>>>>>>>>>>>>>>>>>>>>>>>>>> its input cannot >>>>>>>>>>>>>>>>>>>>>>>>>>> possibly terminate normally. >>>>>>>>>>>>>>>>>>>>>>>>>> We were talking about HHH(HHH). If the outer >>>>>>>>>>>>>>>>>>>>>>>>>> HHH halts according >>>>>>>>>>>>>>>>>>>>>>>>>> to spec, so does the inner, because it is the >>>>>>>>>>>>>>>>>>>>>>>>>> same. Therefore it >>>>>>>>>>>>>>>>>>>>>>>>>> can’t report „non-halting” and be correct. If >>>>>>>>>>>>>>>>>>>>>>>>>> the inner HHH >>>>>>>>>>>>>>>>>>>>>>>>>> doesn’t halt, it is not a decider. >>>>>>>>>>>>>>>>>>>>> I am not going to ever talk about that. >>>>>>>>>>>>>>>>>>>> Oh goody, you’re never getting anywhere if you >>>>>>>>>>>>>>>>>>>> reject corrections. >>>>>>>>>>>>>>>>>>> I reject infinite deflection away from the point. The >>>>>>>>>>>>>>>>>>> absolute >>>>>>>>>>>>>>>>>>> single-mined focus point is that DD correctly >>>>>>>>>>>>>>>>>>> simulated by HHH cannot >>>>>>>>>>>>>>>>>>> possible terminate normally. >>>>>>>>>>>>>>>>>> That IS the point. DD does nothing else than call HHH. >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> Since there is a 5% chance that the treatment I will >>>>>>>>>>>>>>>>>>> have next month >>>>>>>>>>>>>>>>>>> will kill me and this treatment is my only good >>>>>>>>>>>>>>>>>>> chance I will totally >>>>>>>>>>>>>>>>>>> ignore anything that diverges from the point. >>>>>>>>>>>>>>>>>> Ok, I will wait a month then. >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> Anyone that knows the C language sufficiently well knows >>>>>>>>>>>>>>>>> that DD correctly simulated by HHH cannot possibly >>>>>>>>>>>>>>>>> terminate normally. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Indeed, which shows the limitation of HHH which makes >>>>>>>>>>>>>>>> that it cannot properly decide about its input, because >>>>>>>>>>>>>>>> it must abort the correct simulation before it sees that >>>>>>>>>>>>>>>> the correct simulation terminates normally. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>> ========== REMAINDER OF ARTICLE TRUNCATED ==========