[Couenne] Unknown operator error

[Pietro Belotti]

Indeed. Your .nl file contains operators "ifnl" and "ne", which Couenne 
cannot read yet.

Pietro

--
Pietro Belotti
Dept. of Mathematical Sciences
Clemson University
email: pbelott at clemson.edu
phone: 864-656-6765
web:   myweb.clemson.edu/~pbelott

On Thu, 8 Sep 2011, Stefan Vigerske wrote:

> Hi,
>
> probably you use some nonlinear operator in your problem that is not
> supported by Couenne, but by AMPL only, e.g., errorf.
>
> Stefan
>
>> Hello,
>>
>> I've got the following error with Couenne (trunk version compiled
>> under Linux 64bit - gcc 4.6.0):
>>
>> ERROR: unknown operator (address 0p7f7172729f30), aborting.
>>
>> I've tried both from AMPL and from the command line by directly
>> invoking the couenne binary.
>>
>> The same problem runs with bonmin and other solvers (like MINLP).
>>
>> Any idea?
>>
>> I attach the problem in nl format.
>>
>> Best,
>>
>> -- Marco
>>
>>
>>
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>
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