The solver does not give a correct answer to a simple bilevel optimization problem used old input file format

[xlxr]

Hi, I have an simple example with input file written in old input file format. The formulatio is attached in picture. I also attached my input file "simple.aux.txt" and "simple.mps.txt". Note that I add an extension name ".txt" two these two files cuz otherwise Github doesn't allow me to upload. The file was running without ".txt". Also, I uploaded a file,"log.txt", which contains the output. Can anyone find out what did I do wrong? Thank you!

log.txt
simple.aux.txt
simple.mps.txt

[xlxr]

MibS version 1.2 works
It can be obtained with "coinbrew fetch [email protected]" and built with "coinbrew build [email protected]"

[tkralphs]

Thanks for reporting this. There's been a lot of development recently in the 1.2 branch and we need to port this development to the master branch, which has not received as much attention in recent years. At the moment, 1.2 is definitely the most robust and is what should be used in most cases at the moment.

The master branch contains changes to MibS that add the ability to handle stochasticity, but it has gotten behind 1.2 in terms of ability to solve deterministic models. I am a little surprised that master doesn't work, though. I will look at it.