I am working in openmodelica 1.6 and my model is getting compiled (with equal number of equations and variables) but .plt is not getting created.
At run time its showing the following error:

Error in initialization. Solver iterated 50000 time without finding a solution.
This application has requested the run time to terminate it in an unusual way. Please contact the application's support team for more information.

I am not able to understand why the plt is not getting created. Is it the problum with modelica solver or with my model.