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From: Mikko <mikko.levanto@iki.fi>
Newsgroups: comp.theory
Subject: Re: Hypothetical possibilities --- Complete Proof
Date: Fri, 2 Aug 2024 13:12:53 +0300
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On 2024-08-01 13:29:24 +0000, olcott said:

> On 8/1/2024 8:12 AM, Fred. Zwarts wrote:
>> Op 01.aug.2024 om 14:20 schreef olcott:
>>> On 8/1/2024 3:10 AM, Fred. Zwarts wrote:
>>>> Op 31.jul.2024 om 23:23 schreef olcott:
>>>>> On 7/31/2024 3:01 PM, Fred. Zwarts wrote:
>>>>>> Op 31.jul.2024 om 17:14 schreef olcott:
>>>>>>> On 7/31/2024 3:44 AM, Fred. Zwarts wrote:
>>>>>>>> Op 31.jul.2024 om 06:09 schreef olcott:
>>>>>>>>> 
>>>>>>>>>   machine   stack     stack     machine    assembly
>>>>>>>>>   address   address   data      code       language
>>>>>>>>>   ========  ========  ========  =========  =============
>>>>>>>>> [00002192][00103820][00000000] 55         push ebp
>>>>>>>>> [00002193][00103820][00000000] 8bec       mov ebp,esp
>>>>>>>>> [00002195][0010381c][00002172] 6872210000 push 00002172 ; push DDD
>>>>>>>>> [0000219a][00103818][0000219f] e833f4ffff call 000015d2 ; call HHH(DDD)
>>>>>>>>> New slave_stack at:1038c4
>>>>>>>>> 
>>>>>>>>> We don't show any of HHH and show the execution trace of
>>>>>>>>> of just DDD assuming that HHH is an x86 emulator.
>>>>>>>> 
>>>>>>>> This assumption is incorrect if it means that HHH is an unconditional 
>>>>>>>> simulator that does not abort.
>>>>>>> This algorithm is used by all the simulating termination analyzers:
>>>>>>> <MIT Professor Sipser agreed to ONLY these verbatim words 10/13/2022>
>>>>>>>      *If simulating halt decider H correctly simulates its input D*
>>>>>>>      *until H correctly determines that its simulated D would never*
>>>>>>>      *stop running unless aborted* then
>>>>>>> 
>>>>>>>      H can abort its simulation of D and correctly report that D
>>>>>>>      specifies a non-halting sequence of configurations.
>>>>>>> </MIT Professor Sipser agreed to ONLY these verbatim words 10/13/2022>
>>>>>> 
>>>>>> So, Sipser only agreed to a correct simulation, not with an incorrect 
>>>>>> simulation that violates the semantics of the x86 language by skipping 
>>>>>> the last few instructions of a halting program.
>>>>>> 
>>>>> 
>>>>> int DD()
>>>>> {
>>>>>    int Halt_Status = HHH(DD);
>>>>>    if (Halt_Status)
>>>>>      HERE: goto HERE;
>>>>>    return Halt_Status;
>>>>> }
>>>>> 
>>>>> int main()
>>>>> {
>>>>>    HHH(DD);
>>>>> }
>>>>> 
>>>>> DD correctly emulated by HHH cannot possibly reach its own
>>>>> second line. I switched to DDD correctly emulated by HHH
>>>> 
>>>> But it has been proven that no such HHH exists that simulates itself 
>>>> correctly. So, talking about a correct simulation by HHH is vacuous 
>>>> word salad.
>>>> 
>>>>> because only C experts understood the above example and we
>>>>> never had any of those here.
>>>> 
>>>> There are many C experts that looked at it, but you only got critic, 
>>>> because you keep hiding important properties of HHH, which made the 
>>>> conclusion impossible.
>>> 
>>> The following is all that is needed for 100% complete proof
>>> that HHH did emulate DDD correctly according to the semantics
>>> of the x86 language and did emulate itself emulating DDD
>>> according to these same semantics.
>> 
>> You are repeating the same false claim with out any self-reflection. It 
>> has been pointed out that there are many errors in this proof.
>> Why repeating such errors?
>> 
>>> 
>>> _DDD()
>>> [00002172] 55         push ebp      ; housekeeping
>>> [00002173] 8bec       mov ebp,esp   ; housekeeping
>>> [00002175] 6872210000 push 00002172 ; push DDD
>>> [0000217a] e853f4ffff call 000015d2 ; call HHH(DDD)
>>> [0000217f] 83c404     add esp,+04
>>> [00002182] 5d         pop ebp
>>> [00002183] c3         ret
>>> Size in bytes:(0018) [00002183]
>>> 
>>> Begin Local Halt Decider Simulation   Execution Trace Stored at:1138cc
>>> [00002172][001138bc][001138c0] 55         push ebp      ; housekeeping
>>> [00002173][001138bc][001138c0] 8bec       mov ebp,esp   ; housekeeping
>>> [00002175][001138b8][00002172] 6872210000 push 00002172 ; push DDD
>>> [0000217a][001138b4][0000217f] e853f4ffff call 000015d2 ; call HHH(DDD)
>> 
>> The trace stops and hides what happens when 000015d2 is called.
>> Olcott is hiding the conditional branch instructions in the recursion.
>> 
> 
> *Here is the full trace where nothing is hidden*
> https://liarparadox.org/HHH(DDD)_Full_Trace.pdf

On page 36 of that "trace"
    [0000128c][0010379f][00000018] e8e6f4ffff call 00000777
is not followed by the trace of 00000777. Instead the trace continues
with the next instruction after the return without any comment about
the omission. Meaning of 00000777 is not told.

-- 
Mikko