[Coin-ipopt] ipopt 3.3.3 - segmentation fault

Andreas Waechter andreasw at watson.ibm.com
Fri Nov 16 10:14:02 EST 2007

Hi Adela,

In order to fix this, we would need more information in order to reproduce 
the prblem.

Please create a ticket at the Ipopt Trac pages (you will need to create an 
account for COIN if you don't have one yet and log in):


Please include all information necessary to reproduce what you see, such 
as Operating systems, compilers, and the exact sequence of commands that 
lead to this problem.  You can attach an AMPL model to the ticket (ideally 
a simple one) that ends up with the segmentation fault.



On Fri, 16 Nov 2007, [iso-8859-1] Adela Pagès Bernaus wrote:

> Dear all,
> I've just installed the new version of Ipopt (3.3.3). I use Ipopt from AMPL and I have an script that I was using with Ipopt 3.2.3.
> The installation was smooth and successful (the tests were passed!) but my surprise comes when I run again my code: Ipopt solves the first problem ending with
> EXIT: Optimal Solution Found.
> Ipopt 3.3.3: Optimal Solution Found
> suffix ipopt_zU_out OUT;suffix ipopt_zL_out OUT;Segmentation fault1.408u 0.076s 0:01.71 85.9%     0+0k 0+0io 0pf+0w
> Any hint of what may happen?
> Thanks a lot!
> Adela
> PS: I'm using the following options:
>   option ipopt_options $ipopt_options ' mu_init 1000000 ';  # initial mu   option ipopt_options $ipopt_options ' bound_mult_init_val 1000000 ';   option ipopt_options $ipopt_options ' max_soc 8 '; # Max 2nd order correc.   option ipopt_options $ipopt_options ' min_refinement_steps 8 ';
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