search

grande-dev / Augmented-Neural-Lyapunov-Control

Automatic learning of (linear and nonlinear) control functions for nonlinear dynamical systems with stability certificates. The stability of the closed-loop system is certified by means of a Lyapunov Function, whose correctness is guaranteed via SMT solvers.
GNU General Public License v3.0
9 stars 1 forks source link

Use in Google Colab #6

Open fedhits opened 3 months ago

fedhits commented 3 months ago

Thank you for providing a valuable code.

While trying to use the repo in Google Colab, I get this error:

File "/usr/local/lib/python3.8/site-packages/dreal/init.py", line 6, in from dreal._dreal_py import * ImportError: /usr/local/lib/python3.8/site-packages/dreal/../../../libstdc++.so.6: version `GLIBCXX_3.4.29' not found (required by /opt/libibex/2.7.4/lib/libibex.so)

The error message indicates that the version of GLIBCXX (GNU C++ Library) required by the libibex.so library is not found in the Colab environment. How could this be solved?

Thank you very much again

grande-dev commented 3 months ago

@fedhits thank you for your interest in our software tool.

Unfortunately, I cannot recall encountering this error before as we never attempted to run the code on Google Colab. As a first test, I would suggest ruling out potential incompatibilities between the imported version of dReal and Python3.8. The two installation files provide packages and versions compatible with Python3.7 (ANLC_v2/requirements.txt) and with Python3.9 (ANLC_v2/requirements_v39.txt).

Have you already tried to run the code with either one of these two Python releases? If you have, did you experience any similar error that you can report?

fedhits commented 2 months ago

Yes, I have tried them both, but unfortunately the error persists

grande-dev commented 2 months ago

Thank you for ruling out this possibility. We did not initially intend to run the tool on Google Colab, but I will have a look into this option in the following days and let you know if the attempt is successful.