No Results from simulation

When I run my model, the solver starts to run but hangs up without showing any error or warning,

I just get to see the following output:

The amount of memory allocated for the run is 1000 MB.
This run will use in-core processing in the solver.
 

After this, nothing happens, neither can I kill the run nor abort it or pause it also, I cannot close the window.

In the top right corner, it shows,

Iteration: 0

Progress: 100%

Iteration progress: 0