Goblint_lib.BranchSetHelper analyses to be path-sensitive in set of taken branches (branchSet, branchSetFull, branchSetLocal).
The different analysis variants have different interprocedural behavior.
module CommonSpec : sig ... endCommon parts of all variants.
module FullSpec : sig ... endFully interprocedural branch path-sensitivity (branchSetFull).
module Spec : sig ... endSemi-interprocedural branch path-sensitivity (branchSet).
module LocalSpec : sig ... endFully intraprocedural branch path-sensitivity (branchSetLocal).