I have fixed the scene:
1. Particles are too big (you can see that when display as particles used). I did not touched resolution and set particle radius manually to 0.02m instead.
2. I set curve smoothing to 0 because it is not needed here (because of excessive amount of smoothing one of the ropes smoothes incorrectly, default value 0.5 works fine).
3. Because ropes do not need to preserve shape we can set remove rigid constraint (set rigid stiffnes to 0.0) and use spring constraints instead (set spring stiffness to 1.0).
4. Because ropes quite long I have increased iteration count to 15. Substep count could be decreased to speedup processing (I set to 15).
After that the scene simulates just fine.
