digraph iCFG { 5 [label="5: Return Stmt \n n$0=*&#GB$aVariable:class NSObject * [line 21]\n *&return:class NSObject *=n$0 [line 21]\n REMOVE_TEMPS(n$0); [line 21]\n APPLY_ABSTRACTION; [line 21]\n " shape="box"] 5 -> 4 ; 4 [label="4: Exit AClass_sharedInstance \n " color=yellow style=filled] 3 [label="3: Start AClass_sharedInstance\nFormals: self:class AClass *\nLocals: \n DECLARE_LOCALS(&return); [line 20]\n NULLIFY(&self,false); [line 20]\n " color=yellow style=filled] 3 -> 5 ; 2 [label="2: Exit AClass_frontendChecks \n " color=yellow style=filled] 1 [label="1: Start AClass_frontendChecks\nFormals: \nLocals: \n " color=yellow style=filled] 1 -> 2 ; }