[Couenne] Unknown operator error

[sguazt]

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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