How do I find execution paths from AST using ANTLR in C#

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Visual-Studio

Antlr

Hello every plz help me actually I am using this code Visual AST for ANTLR Generated Parser Output[^]
to generate the AST for any code than I applied slicing on it now I have to find the execution paths from it not the normal execution paths
I have to add a test case that will find the execution path and that will change the color of those nodes that will lead to an execution paths
plz help me out from this

What I have tried:

I have tried many things such as enterning string path = Path.GetDirectoryName(
// Assembly.GetAssembly(typeof(Sampler)).CodeBase);
AND
//string appPath = Path.GetDirectoryName(Application.ExecutablePath);