Excessive memory usage

[Fillipko]

System Details

1. Python Version: Python 3.10.12
2. Scenic Version: Scenic 3.1.0a1
3. Operating System: Ubuntu 22.04
4. CARLA 0.9.15

Detailed Description

1. After running a single scenario in scenic for any extended period of time, the simulation continues to use more and more memory until crashing (roughly 200 Mb per second). Once the scenario is finished and the simulator moves on to another iteration, the memory usage goes down again, but this is quite problematic with longer scenarios.
2. Command: scenic --2d car.scenic --simulate
3. No error log

Steps To Reproduce

1. Run the CARLA simulator: ./CarlaUE4.sh
2. Run the example car.scenic file: scenic --2d car.scenic --simulate
3. Open resource manager (htop) and see the memory usage continuously climb until the system crashes

Issue Submission Checklist

• I am reporting an issue, not asking a question
• I checked the open and closed issues, forum, etc. and have not found any solution
• I have provided all necessary code, etc. to reproduce the issue

[dfremont]

Hello Fillip, could you please confirm that Lola's patch which we just merged into main fixes your issue? (And thanks for the report!)

[Fillipko]

Hey Daniel! That patched seemed to fix the issue. Thank you for the support!

[dfremont]

Great. Thanks to Lola for the patch!