Running the problem fails with stack smashing detected

[truncs]

While running the example mpc bicycle problem alpaqa results in stack smashing detected

(env) aditya@aditya-desktop:~/workspace/alpaqa/examples/mpc/python/bicycle$ python3 bicycle-obstacle-avoidance-mpc.py 
*** stack smashing detected ***: <unknown> terminated
Aborted (core dumped)

NOTE: The example file has some syntax error, so I had to fix that.

I tried reinstalling alpaqa but that doesn't help

(env) aditya@aditya-desktop:~/workspace/alpaqa/examples/mpc/python/bicycle$ pip3 install --force alpaqa
Looking in indexes: https://pypi.org/simple, https://pypi.ngc.nvidia.com
Collecting alpaqa
  Downloading alpaqa-0.0.1-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.manylinux_2_27_x86_64.whl (3.7 MB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 3.7/3.7 MB 40.4 MB/s eta 0:00:00
Collecting cmake
  Downloading cmake-3.24.1.1-py2.py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (23.3 MB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 23.3/23.3 MB 96.3 MB/s eta 0:00:00
Collecting casadi
  Downloading casadi-3.5.5-cp38-none-manylinux1_x86_64.whl (34.2 MB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 34.2/34.2 MB 91.0 MB/s eta 0:00:00
Collecting numpy
  Downloading numpy-1.23.3-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (17.1 MB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 17.1/17.1 MB 106.5 MB/s eta 0:00:00
Collecting ninja
  Downloading ninja-1.10.2.4-py2.py3-none-manylinux_2_5_x86_64.manylinux1_x86_64.whl (120 kB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 120.7/120.7 kB 200.8 MB/s eta 0:00:00
Installing collected packages: ninja, cmake, casadi, numpy, alpaqa
  Attempting uninstall: ninja
    Found existing installation: ninja 1.10.2.3
    Uninstalling ninja-1.10.2.3:
      Successfully uninstalled ninja-1.10.2.3
  Attempting uninstall: cmake
    Found existing installation: cmake 3.24.1.1
    Uninstalling cmake-3.24.1.1:
      Successfully uninstalled cmake-3.24.1.1
  Attempting uninstall: casadi
    Found existing installation: casadi 3.5.5
    Uninstalling casadi-3.5.5:
      Successfully uninstalled casadi-3.5.5
  Attempting uninstall: numpy
    Found existing installation: numpy 1.23.3
    Uninstalling numpy-1.23.3:
      Successfully uninstalled numpy-1.23.3
  Attempting uninstall: alpaqa
    Found existing installation: alpaqa 0.0.1
    Uninstalling alpaqa-0.0.1:
      Successfully uninstalled alpaqa-0.0.1
Successfully installed alpaqa-0.0.1 casadi-3.5.5 cmake-3.24.1.1 ninja-1.10.2.4 numpy-1.23.3

[notice] A new release of pip available: 22.2 -> 22.2.2
[notice] To update, run: pip install --upgrade pip
(env) aditya@aditya-desktop:~/workspace/alpaqa/examples/mpc/python/bicycle$ python3 bicycle-obstacle-avoidance-mpc.py 
*** stack smashing detected ***: <unknown> terminated
Aborted (core dumped)

Casadi with other ipot seems to be working fine.

Thoughts? Or should this be part of casadi?

[tttapa]

Thank you for the report.
The root cause was the lifetime of a temporary in an Eigen expression template in a generic function. This issue has since been fixed on the develop branch and in the 1.0 pre-releases of alpaqa.

I have improved the continuous integration to include tests under Valgrind, and with all stack canaries enabled to avoid similar issues in the future.

[truncs]

Thank you for looking into this!