How to convert activity diagram to petrinet, synthesize it, and then analyze it?

I am doing a project in Petri nets.

I created an activity diagram (in .xmi format) using the Umbrello UML tool. I need to convert it to a Petri net, and then synthesize it using the Petrify tool. But in order to convert it to a Petri net, the activity diagram must be converted to XML format.

To synthesize the use of petrify, the Petri network must be converted to .g format and only then to .xml format. In short, I need to integrate the Umbrello, UML2owfn, Petrify and PIPE tools. How can I integrate these tools using Python?