Server error when creating multiple worlds. “Failed to find symbol file, expected location”. Potential memory leak?

[MoritzNekolla]

CARLA version: 0.9.13
Platform/OS: Linux

Error is on server-side
Error-Message:

Signal 11 caught.
Malloc Size=65538 LargeMemoryPoolOffset=65554
CommonUnixCrashHandler: Signal=11
Failed to find symbol file, expected location:
"/opt/carla-simulator/CarlaUE4/Binaries/Linux/CarlaUE4-Linux-Shipping.sym"
Engine crash handling finished; re-raising signal 11 for the default handler. Good bye.
Segmentation fault (core dumped)

I run carla server side by:

./CarlaUE4.sh -RenderOffScreen -opengl --carla-world-port=2200

Minimal code:

import glob
import os
import sys
import numpy as np
import time

# ==============================================================================
# -- Find CARLA module ---------------------------------------------------------
# ==============================================================================
try:
    sys.path.append(glob.glob('../carla/dist/carla-*%d.%d-%s.egg' % (
        sys.version_info.major,
        sys.version_info.minor,
        'win-amd64' if os.name == 'nt' else 'linux-x86_64'))[0])
except IndexError:
    pass

# ==============================================================================
# -- Add PythonAPI for release mode --------------------------------------------
# ==============================================================================
try:
    sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))) + '/carla')
except IndexError:
    pass

import carla

class Environment:

    def __init__(self, world='Town01_Opt', host='localhost', port=2200):
        self.client = carla.Client(host, port)            #Connect to server
        self.client.set_timeout(30.0)
        self.world = self.client.load_world(world)

    def __del__(self):
        if self.client:
            del self.client
        if self.world:
            del self.world
        print("__del__ called")

if __name__ == "__main__":
    for x in range(0,20000):
        env = Environment(world="Town01_Opt", port=2200, host="localhost")
        time.sleep(1)  # let the env render for a second 
        print(f"world {x}")

The code creates and destroys a world multiple times.
After around ~120 worlds, the server crashes with the error above, although each world is destroyed before creating a new one.

This is a condensed version of this.
Might also be relevant for this.

Update:
Found similar (unsolved) problem here

[stale]

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