Entering function main.
Entering ctor Animal <<CTOR>>.
Entering ctor Dog <<CTOR>>.
Entering ctor Animal <<CTOR>>.
Entering ctor Cat <<CTOR>>.
Entering ctor Animal <<CTOR>>.
Entering ctor Snake <<CTOR>>.
Entering method Animal::set_name <<SET_NAME>>.
Entering method Animal::set_name <<SET_NAME>>.
Entering ctor Owner <<CTOR>>.
Entering ctor Owner <<CTOR>>.
Entering method Owner::set_name <<SET_NAME>>.
Entering method Animal::set_owner <<SET_OWNER>>.
Entering method Animal::set_owner <<SET_OWNER>>.
dog= Dog {
   Animal {
      name= "Fido"
      owner:
      Owner {
         name= "John"
      };   // End of Owner
   };   // End of Animal
};   // End of Dog

Entering method Dog::talk.
woofffffff...
woofffffff...
woofffffff...
cat= Cat {
   Animal {
      name= "Felix"
      owner:
      Owner {
         name= "Jenna"
      };   // End of Owner
   };   // End of Animal
};   // End of Cat

Entering method Cat::talk.
miowwwwwww...
miowwwwwww...
snake= Snake {
   Animal {
      name= "Ka"
      owner is NULL
   };   // End of Animal
};   // End of Snake

Entering method Snake::talk.
hisssssss...
owner 1 = Owner {
   name= "John"
};   // End of Owner

owner 2 = Owner {
   name= "Jenna"
};   // End of Owner

Entering dtor ~Owner <<DTOR>>.
Entering dtor ~Owner <<DTOR>>.
Entering dtor ~Snake <<DTOR>>.
Entering dtor ~Animal <<DTOR>>.
Entering dtor ~Cat <<DTOR>>.
Entering dtor ~Animal <<DTOR>>.
Entering dtor ~Dog <<DTOR>>.
Entering dtor ~Animal <<DTOR>>.