[Coin-symphony] Error setting time

[Menal Guzelsoy]

Guilherme,

I fixed a small bug with the readline subroutines of interactive optimizer
which, I guess, was causing the problem. Can you have an update and let 
me know
if this helps?

Menal.

Quoting Guilherme Albuquerque <guilherme.ulliana at gmail.com>:

> OK. Let's see...
>
> 1. I'm using gcc 4.0
> 2. 32 bit
> 3. The same error occour even when there is no mps file being solved (the
> problem is in the 'set' submenu.
> 4. I'm not familiar with this term, did you mean some information of the
> results using a debugging tool like gdb? If so, the program goes well, I
> type 'set' to enter the submenu, then 'time_limit' to set the variable and
> whenever I try to enter any value greater than 999, the following problem is
> detected:
>
> *** glibc detected *** free(): invalid next size (fast): 0x0804f680 ***
>
> Program received signal SIGABRT, Aborted.
> [Switching to Thread -1214564672 (LWP 8763)]
> 0xffffe410 in __kernel_vsyscall ()
>
> 5. Again I'm not sure if is it what you mean, but I try to run symphony with
> the comand ./symphony<input>output (and I attached these two files), and the
> following message still pops up:
>
> *** glibc detected *** free(): invalid next size (fast): 0x0804f680 ***
> Abortado
>
> (PS: Abortado means 'aborted' in portuguese)
>
>
> 6. I'm trying to set the variable time_limit to the value of 1800. When I
> start the program, I give the commands 'set', 'time_limit' and '1800', then
> the error occurs. After many tests, I found that this error don't occurs
> with values lower than 1000. Another strange thing is that the manual says
> that the time_limit variable should be 'double', but the error also occurs
> when I try to give it values like 3.14.
>
>
> I'm glad that I received this much attention, and I hope you can help me.
> By the way, in answer to Baharev Ali, I have to use symphony because my
> graduation project is about how powerfull some of the COIN-OR tools are, and
> I'm making some tests with then. But thank you for your attention!
>
> Best regards,
> Guilherme
>
>
> On 5/17/06, Ted Ralphs <tkralphs at lehigh.edu> wrote:
>>
>> Guilherme Albuquerque wrote:
>>
>> > Well, I'm a student of Computer Science of the University of São Paulo,
>> > Brazil, and I just start using COIN-OR's tools, like Clp and SYMPHONY.
>> > I'm having a hard time when I try to set the time_limit variable to 1800
>> > (30 minutes) in the version 5.1alpha, the following error occurs: ***
>> > glibc detected *** free(): invalid next size (fast): 0x0804f680 ***. I'm
>> > using UBUNTU 5.1 in my computer.
>>
>> It's difficult to say without more information. This would seem to
>> indicate some kind of memory corruption. If you'd like to provide more
>> information, we can try to track it down. Please provide
>>
>> 1. compiler and version
>> 2. architecture (32 or 64 bit)
>> 3. copy of the MPS file being solved
>> 4. stack trace, if possible
>> 5. copy of output
>> 6. a more detailed description of the circumstances surrounding the crash.
>>
>> Cheers,
>>
>> Ted
>>
>> --
>> Dr. Ted Ralphs
>> Assistant Professor
>> Industrial and Systems Engineering
>> Lehigh University
>> (610)758-4784
>> tkralphs at lehigh.edu
>> www.lehigh.edu/~tkr2
>>
>



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