Couenne

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Dear all, I am using Couenne to solve several non-convex MINLPs. The problem is that when I set "min 0" as objective function Couenne finds a feasible solution, nut when...

Luca-Mencarelli

Hello, I stumbled upon a small optimization problem which may cause trouble to couenne optimizer. I'm working with pyomo 6.0.1, MacOSX 12.1 and couenne 0.5.7. Here it the example: ```...

yonizim

{cmath,cfloat}: present but cannot be compiled

1

configure prints this: ``` checking cmath usability... no checking cmath presence... yes configure: WARNING: cmath: present but cannot be compiled configure: WARNING: cmath: check for missing prerequisite headers? configure: WARNING:...

yurivict

Couenne in Minizinc is unable to find an optimal solution

8

Hi All, I downloaded the latest version of Couenne available from the [AMPL website](https://ampl.com/products/solvers/open-source/) and was testing on a very small problem which I am posting here. If I run...

indrajitsg

Lots of output starting with "NLP Heuristic:"

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When I run couenne, I get lots of output looking like this. ``` NLP Heuristic: time limit reached. NLP Heuristic: time limit reached. NLP Heuristic: no solution. ... ``` I'm...

michi7x7

reports unbounded problem as infeasible

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Issue created by migration from Trac. Original creator: @svigerske Original creation time: 2013-03-01 14:33:54 Assignee: @merraksh Version: Hi, Couenne seems to have problems to recognize unboundedness. The attached .mod and...

svigerske

Issue created by migration from Trac. Original creator: @merraksh Original creation time: 2010-10-26 20:49:40 Assignee: somebody Version: Often, an assert() is evaluated false on the condition in the subject. Couenne...

svigerske

Unable to build couenne

2

Issue created by migration from Trac. Original creator: speren Original creation time: 2018-03-27 10:16:54 Assignee: @merraksh Version: Dear sir I have a problem installing Couenne on my computer (running Mint...

svigerske

Different ("optimal") solutions between 0.4.8. and 0.5.0/0.5.6

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Issue created by migration from Trac. Original creator: coniglio Original creation time: 2016-07-18 14:43:09 Assignee: @merraksh Version: Hi, I'm witnessing two solutions being reported as optimal by two different versions...

svigerske

Compilation Error in BonCouenneSetup.cpp

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Issue created by migration from Trac. Original creator: Augustop Original creation time: 2015-09-21 18:20:15 Assignee: @merraksh Version: Hi. I'm having trouble compiling Couenne in Xubuntu 64 bits. The throwed error...

svigerske