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From: olcott <polcott333@gmail.com>
Newsgroups: comp.theory
Subject: Re: Anyone with sufficient knowledge of C knows that DD specifies
 non-terminating behavior to HHH
Date: Mon, 10 Feb 2025 05:58:31 -0600
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On 2/10/2025 2:35 AM, Mikko wrote:
> On 2025-02-09 15:24:53 +0000, olcott said:
> 
>> On 2/9/2025 4:08 AM, Mikko wrote:
>>> On 2025-02-08 14:55:09 +0000, olcott said:
>>>
>>>> On 2/8/2025 4:25 AM, Mikko wrote:
>>>>> On 2025-02-07 23:13:04 +0000, olcott said:
>>>>>
>>>>>> Experts in the C programming language will know that DD
>>>>>> correctly simulated by HHH cannot possibly reach its own
>>>>>> "if" statement.
>>>>>
>>>>> Wrong, they understand that nothing below exludes the possibility that
>>>>> HHH is a program that can correctly simulate DD to its "if" statement.
>>>>
>>>> Show the execution trace of that.
>>>
>>> Your request does not make sense. Non-existence of a exclusion does not
>>> have an execution trace.
>>>
>>>>> The code of HHH might exlude that but that is not sohwn below.
>>>>>
>>>>>> The finite string DD specifies non-terminating recursive
>>>>>> simulation to simulating termination analyzer HHH.
>>>>>
>>>>> No, it does not. DD as quoted below pecifies nothing about the 
>>>>> behaviour
>>>>> of HHH, only its argument types and return type.
>>>>>
>>>>
>>>>  >>    int Halt_Status = HHH(DD); // line 3 of DD
>>>> Requires HHH to simulate itself simulating DD recursively.
>>>
>>> No, it does not. I only requires that the execution of HHH with a 
>>> function
>>> pointer to DD must be started. OP does not show what happens next.
>>
>> Within the context that HHH <is> a simulating termination
>> analyzer line 3 of DD proves that DD cannot possibly reach
>> its own "if" statement.
> 
> That is not the context of OP.
> 

That you did not bother to look at my paper does not entail
that the correct full context has not been provided. The
context has always been this paper for several years.

https://www.researchgate.net/publication/369971402_Simulating_Termination_Analyzer_H_is_Not_Fooled_by_Pathological_Input_D

typedef void (*ptr)();
int HHH(ptr P);

int DD()
{
   int Halt_Status = HHH(DD);
   if (Halt_Status)
     HERE: goto HERE;
   return Halt_Status;
}

int main()
{
   HHH(DD);
}


-- 
Copyright 2024 Olcott "Talent hits a target no one else can hit; Genius
hits a target no one else can see." Arthur Schopenhauer