Re: Ben Bacarisse fails understand that deciders COMPUTE THE MAPPING FROM INPUTS

Op 31.aug.2024 om 14:57 schreef olcott:

On 8/30/2024 8:46 AM, Fred. Zwarts wrote:

Op 30.aug.2024 om 15:05 schreef olcott:

On 8/30/2024 3:32 AM, Fred. Zwarts wrote:

Op 29.aug.2024 om 23:13 schreef olcott:

>
One cannot simply ignore the actual behavior of DDD emulated
by HHH according to the semantics of the x86 language because
this actual behavior is not the behavior that one expects or
one would like to have.

>
You cannot deny the semantics of the x86 language simply because you do not like it, or you prefer another behaviour.
The specification of the semantics of the x86 language does not give room for a context depending interpretation. It is independent on which processor, or which simulator processes this finite string.
>

>
*This is before any aborting occurs*
*This is before any aborting occurs*
*This is before any aborting occurs*
>
The behavior of
the directly executed DDD and executed HHH
is different from the behavior of
the emulated DDD and the emulated HHH

>
Not according to the unmodified world calls simulator, which, when given the same input shows that the DDD based on the aborting HHH, halts.
>

>
and all four of them are emulated by the world
class x86 emulator libx86emu
>
It is easy to see that when the executed HHH emulates
DDD that it does this correctly when we look at the
execution trace and see the the first four instructions
of DDD are listed.
>
_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]
>
New slave_stack at:1038c4
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)
New slave_stack at:14e2ec
[00002172][0015e2e4][0015e2e8] 55         push ebp      ; housekeeping
[00002173][0015e2e4][0015e2e8] 8bec       mov ebp,esp   ; housekeeping
[00002175][0015e2e0][00002172] 6872210000 push 00002172 ; push DDD
[0000217a][0015e2dc][0000217f] e853f4ffff call 000015d2 ; call HHH(DDD)
Local Halt Decider: Infinite Recursion Detected Simulation Stopped
>
Then this emulated DDD calls an emulated HHH(DDD).
It is easy to see that when the executed HHH emulates
itself emulated DDD that it does this correctly when we
look at the execution trace and see the the first four
instructions of DDD are listed again.
>
>

And after a few recursions HHH sees a 'special condition' after which it aborts and halt.

 If you cannot see that this special condition conclusively
proves that HHH must abort its emulation of DDD to prevent
the infinite exection of DDD then you have insufficient
technical competence.

I see that the abort has the advantage that it makes a halting program. Olcott's technical competence seem to be insufficient, however, to see that it also changes the behaviour of the simulated HHH.

 If you can see this then you understand that this criteria has been met:
 <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
<MIT Professor Sipser agreed to ONLY these verbatim words 10/13/2022>

Sipser agreed only with a correct simulation and a correct determination. But olcott's technical competence is insufficient to see that there is neither a correct simulation, nor an infinite recursion.

 Here is is with 100 millions instructions and NO ABORT

Irrelevant.
Changing the subject again away from the aborting HHH to a dream of a non-aborting HHH. Dreams are no substitute for facts.
When the simulation of the aborting HHH is not aborted (such as in the simulation by the world class simulator), we see that the simulated HHH halts.
But the simulating HHH fails to reach that point of the simulation, which makes the simulation incorrect.