Of course it is possible. Let me give you a starting point about it. Go to File->Model Properties->Model Properties and go to StopFcn. Write the following line:
warndlg('Simulation ended with success')
Everytime the simulation ends with success, this message will pop up. Assume that simulation time is 10 seconds and you can add an if statement of simulation time like
if Simulation time==10
warndlg('Simulation ended with success')
else
errordlg('Simulation includes an error')
end
This may also work. Hope this helps.
