[Coin-symphony] Error setting time

[Guilherme Albuquerque]

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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