# Buggy code
def main():
    module = AnsibleModule(
        argument_spec=dict(
            state=dict(
                choices=["file", "directory", "link", "hard", "touch", "absent"],
                default=None,
            ),
            path=dict(aliases=["dest", "name"], required=True, type="path"),
            original_basename=dict(
                required=False
            ),  # Internal use only, for recursive ops
            recurse=dict(default=False, type="bool"),
            force=dict(required=False, default=False, type="bool"),
            diff_peek=dict(
                default=None
            ),  # Internal use only, for internal checks in the action plugins
            validate=dict(
                required=False, default=None
            ),  # Internal use only, for template and copy
            src=dict(required=False, default=None, type="path"),
        ),
        add_file_common_args=True,
        supports_check_mode=True,
    )

    params = module.params
    state = params["state"]
    recurse = params["recurse"]
    force = params["force"]
    diff_peek = params["diff_peek"]
    src = params["src"]
    b_src = to_bytes(src, errors="surrogate_or_strict")
    follow = params["follow"]

    # modify source as we later reload and pass, specially relevant when used by other modules.
    path = params["path"]
    b_path = to_bytes(path, errors="surrogate_or_strict")

    # short-circuit for diff_peek
    if diff_peek is not None:
        appears_binary = False
        try:
            f = open(b_path, "rb")
            head = f.read(8192)
            f.close()
            if b("\x00") in head:
                appears_binary = True
        except:
            pass
        module.exit_json(path=path, changed=False, appears_binary=appears_binary)

    prev_state = get_state(b_path)

    # state should default to file, but since that creates many conflicts,
    # default to 'current' when it exists.
    if state is None:
        if prev_state != "absent":
            state = prev_state
        elif recurse:
            state = "directory"
        else:
            state = "file"

    # source is both the source of a symlink or an informational passing of the src for a template module
    # or copy module, even if this module never uses it, it is needed to key off some things
    if src is None:
        if state in ("link", "hard"):
            if follow and state == "link":
                # use the current target of the link as the source
                src = to_native(os.path.realpath(b_path), errors="strict")
                b_src = to_bytes(os.path.realpath(b_path), errors="strict")
            else:
                module.fail_json(msg="src and dest are required for creating links")

    # original_basename is used by other modules that depend on file.
    if state not in ("link", "absent") and os.path.isdir(b_path):
        basename = None
        if params["original_basename"]:
            basename = params["original_basename"]
        elif src is not None:
            basename = os.path.basename(src)
        if basename:
            params["path"] = path = os.path.join(path, basename)
            b_path = to_bytes(path, errors="surrogate_or_strict")

    # make sure the target path is a directory when we're doing a recursive operation
    if recurse and state != "directory":
        module.fail_json(
            path=path, msg="recurse option requires state to be 'directory'"
        )

    file_args = module.load_file_common_arguments(params)

    changed = False
    diff = {
        "before": {"path": path},
        "after": {"path": path},
    }

    state_change = False
    if prev_state != state:
        diff["before"]["state"] = prev_state
        diff["after"]["state"] = state
        state_change = True

    if state == "absent":
        if state_change:
            if not module.check_mode:
                if prev_state == "directory":
                    try:
                        shutil.rmtree(b_path, ignore_errors=False)
                    except Exception as e:
                        module.fail_json(msg="rmtree failed: %s" % to_native(e))
                else:
                    try:
                        os.unlink(b_path)
                    except Exception as e:
                        module.fail_json(
                            path=path, msg="unlinking failed: %s " % to_native(e)
                        )
            module.exit_json(path=path, changed=True, diff=diff)
        else:
            module.exit_json(path=path, changed=False)

    elif state == "file":
        if state_change:
            if follow and prev_state == "link":
                # follow symlink and operate on original
                b_path = os.path.realpath(b_path)
                path = to_native(b_path, errors="strict")
                prev_state = get_state(b_path)
                file_args["path"] = path

        if prev_state not in ("file", "hard"):
            # file is not absent and any other state is a conflict
            module.fail_json(
                path=path, msg="file (%s) is %s, cannot continue" % (path, prev_state)
            )

        changed = module.set_fs_attributes_if_different(file_args, changed, diff)
        module.exit_json(path=path, changed=changed, diff=diff)

    elif state == "directory":
        if follow and prev_state == "link":
            b_path = os.path.realpath(b_path)
            path = to_native(b_path, errors="strict")
            prev_state = get_state(b_path)

        if prev_state == "absent":
            if module.check_mode:
                module.exit_json(changed=True, diff=diff)
            changed = True
            curpath = ""

            try:
                # Split the path so we can apply filesystem attributes recursively
                # from the root (/) directory for absolute paths or the base path
                # of a relative path.  We can then walk the appropriate directory
                # path to apply attributes.
                for dirname in path.strip("/").split("/"):
                    curpath = "/".join([curpath, dirname])
                    # Remove leading slash if we're creating a relative path
                    if not os.path.isabs(path):
                        curpath = curpath.lstrip("/")
                    b_curpath = to_bytes(curpath, errors="surrogate_or_strict")
                    if not os.path.exists(b_curpath):
                        try:
                            os.mkdir(b_curpath)
                        except OSError as ex:
                            # Possibly something else created the dir since the os.path.exists
                            # check above. As long as it's a dir, we don't need to error out.
                            if not (
                                ex.errno == errno.EEXIST and os.path.isdir(b_curpath)
                            ):
                                raise
                        tmp_file_args = file_args.copy()
                        tmp_file_args["path"] = curpath
                        changed = module.set_fs_attributes_if_different(
                            tmp_file_args, changed, diff
                        )
            except Exception as e:
                module.fail_json(
                    path=path,
                    msg="There was an issue creating %s as requested: %s"
                    % (curpath, to_native(e)),
                )

        # We already know prev_state is not 'absent', therefore it exists in some form.
        elif prev_state != "directory":
            module.fail_json(
                path=path, msg="%s already exists as a %s" % (path, prev_state)
            )

        changed = module.set_fs_attributes_if_different(file_args, changed, diff)

        if recurse:
            changed |= recursive_set_attributes(
                module,
                to_bytes(file_args["path"], errors="surrogate_or_strict"),
                follow,
                file_args,
            )

        module.exit_json(path=path, changed=changed, diff=diff)

    elif state in ("link", "hard"):
        if not os.path.islink(b_path) and os.path.isdir(b_path):
            relpath = path
        else:
            b_relpath = os.path.dirname(b_path)
            relpath = to_native(b_relpath, errors="strict")

        absrc = os.path.join(relpath, src)
        b_absrc = to_bytes(absrc, errors="surrogate_or_strict")
        if not force and not os.path.exists(b_absrc):
            module.fail_json(
                path=path,
                src=src,
                msg='src file does not exist, use "force=yes" if you really want to create the link: %s'
                % absrc,
            )

        if state == "hard":
            if not os.path.isabs(b_src):
                module.fail_json(msg="absolute paths are required")
        elif prev_state == "directory":
            if not force:
                module.fail_json(
                    path=path,
                    msg="refusing to convert between %s and %s for %s"
                    % (prev_state, state, path),
                )
            elif len(os.listdir(b_path)) > 0:
                # refuse to replace a directory that has files in it
                module.fail_json(
                    path=path,
                    msg="the directory %s is not empty, refusing to convert it" % path,
                )
        elif prev_state in ("file", "hard") and not force:
            module.fail_json(
                path=path,
                msg="refusing to convert between %s and %s for %s"
                % (prev_state, state, path),
            )

        if prev_state == "absent":
            changed = True
        elif prev_state == "link":
            b_old_src = os.readlink(b_path)
            if b_old_src != b_src:
                diff["before"]["src"] = to_native(b_old_src, errors="strict")
                diff["after"]["src"] = src
                changed = True
        elif prev_state == "hard":
            if not (
                state == "hard" and os.stat(b_path).st_ino == os.stat(b_src).st_ino
            ):
                changed = True
                if not force:
                    module.fail_json(
                        dest=path,
                        src=src,
                        msg="Cannot link, different hard link exists at destination",
                    )
        elif prev_state == "file":
            changed = True
            if not force:
                module.fail_json(
                    dest=path,
                    src=src,
                    msg="Cannot link, %s exists at destination" % prev_state,
                )
        elif prev_state == "directory":
            changed = True
            if os.path.exists(b_path):
                if state == "hard" and os.stat(b_path).st_ino == os.stat(b_src).st_ino:
                    module.exit_json(path=path, changed=False)
                elif not force:
                    module.fail_json(
                        dest=path,
                        src=src,
                        msg="Cannot link, different hard link exists at destination",
                    )
        else:
            module.fail_json(dest=path, src=src, msg="unexpected position reached")

        if changed and not module.check_mode:
            if prev_state != "absent":
                # try to replace atomically
                b_tmppath = to_bytes(os.path.sep).join(
                    [
                        os.path.dirname(b_path),
                        to_bytes(".%s.%s.tmp" % (os.getpid(), time.time())),
                    ]
                )
                try:
                    if prev_state == "directory" and state == "link":
                        os.rmdir(b_path)
                    elif prev_state == "directory" and state == "hard":
                        if os.path.exists(b_path):
                            os.remove(b_path)
                    if state == "hard":
                        os.link(b_src, b_tmppath)
                    else:
                        os.symlink(b_src, b_tmppath)
                    os.rename(b_tmppath, b_path)
                except OSError as e:
                    if os.path.exists(b_tmppath):
                        os.unlink(b_tmppath)
                    module.fail_json(
                        path=path,
                        msg="Error while replacing: %s"
                        % to_native(e, nonstring="simplerepr"),
                    )
            else:
                try:
                    if state == "hard":
                        os.link(b_src, b_path)
                    else:
                        os.symlink(b_src, b_path)
                except OSError as e:
                    module.fail_json(
                        path=path,
                        msg="Error while linking: %s"
                        % to_native(e, nonstring="simplerepr"),
                    )

        if module.check_mode and not os.path.exists(b_path):
            module.exit_json(dest=path, src=src, changed=changed, diff=diff)

        changed = module.set_fs_attributes_if_different(file_args, changed, diff)
        module.exit_json(dest=path, src=src, changed=changed, diff=diff)

    elif state == "touch":
        if not module.check_mode:
            if prev_state == "absent":
                try:
                    open(b_path, "wb").close()
                except OSError as e:
                    module.fail_json(
                        path=path,
                        msg="Error, could not touch target: %s"
                        % to_native(e, nonstring="simplerepr"),
                    )
            elif prev_state in ("file", "directory", "hard"):
                try:
                    os.utime(b_path, None)
                except OSError as e:
                    module.fail_json(
                        path=path,
                        msg="Error while touching existing target: %s"
                        % to_native(e, nonstring="simplerepr"),
                    )
            else:
                module.fail_json(
                    msg="Cannot touch other than files, directories, and hardlinks (%s is %s)"
                    % (path, prev_state)
                )
            try:
                module.set_fs_attributes_if_different(file_args, True, diff)
            except SystemExit as e:
                if e.code:
                    # We take this to mean that fail_json() was called from
                    # somewhere in basic.py
                    if prev_state == "absent":
                        # If we just created the file we can safely remove it
                        os.remove(b_path)
                raise e

        module.exit_json(dest=path, changed=True, diff=diff)

    module.fail_json(path=path, msg="unexpected position reached")


# Traceback (OSError)
<localhost> ESTABLISH LOCAL CONNECTION FOR USER: root
<localhost> EXEC /bin/sh -c '/usr/bin/python &amp;&amp; sleep 0'
The full traceback is:
Traceback (most recent call last):
File "/tmp/ansible_rLV5HB/ansible_module_file.py", line 480, in <module>
main()
File "/tmp/ansible_rLV5HB/ansible_module_file.py", line 362, in main
changed |= recursive_set_attributes(module, to_bytes(file_args['path'], errors='surrogate_or_strict'), follow, file_args)
File "/tmp/ansible_rLV5HB/ansible_module_file.py", line 171, in recursive_set_attributes
changed |= module.set_fs_attributes_if_different(tmp_file_args, changed)
File "/tmp/ansible_rLV5HB/ansible_modlib.zip/ansible/module_utils/basic.py", line 1292, in set_fs_attributes_if_different
File "/tmp/ansible_rLV5HB/ansible_modlib.zip/ansible/module_utils/basic.py", line 998, in set_owner_if_different
File "/tmp/ansible_rLV5HB/ansible_modlib.zip/ansible/module_utils/basic.py", line 909, in user_and_group
OSError: [Errno 2] No such file or directory: '/tmp2//root'

fatal: [localhost]: FAILED! => {
"changed": false,
"failed": true,
"module_stderr": "Traceback (most recent call last):\n  File \"/tmp/ansible_rLV5HB/ansible_module_file.py\", line 480, in <module>\n    main()\n  File \"/tmp/ansible_rLV5HB/ansible_module_file.py\", $
ine 362, in main\n    changed |= recursive_set_attributes(module, to_bytes(file_args['path'], errors='surrogate_or_strict'), follow, file_args)\n  File \"/tmp/ansible_rLV5HB/ansible_module_file.py\", lin$
171, in recursive_set_attributes\n    changed |= module.set_fs_attributes_if_different(tmp_file_args, changed)\n  File \"/tmp/ansible_rLV5HB/ansible_modlib.zip/ansible/module_utils/basic.py\", line 1292$
in set_fs_attributes_if_different\n  File \"/tmp/ansible_rLV5HB/ansible_modlib.zip/ansible/module_utils/basic.py\", line 998, in set_owner_if_different\n  File \"/tmp/ansible_rLV5HB/ansible_modlib.zip/an
sible/module_utils/basic.py\", line 909, in user_and_group\nOSError: [Errno 2] No such file or directory: '/tmp2//root'\n",
"module_stdout": "",
"msg": "MODULE FAILURE",
"rc": 1
}

# Fixed code
def main():
    module = AnsibleModule(
        argument_spec=dict(
            state=dict(
                choices=["file", "directory", "link", "hard", "touch", "absent"],
                default=None,
            ),
            path=dict(aliases=["dest", "name"], required=True, type="path"),
            original_basename=dict(
                required=False
            ),  # Internal use only, for recursive ops
            recurse=dict(default=False, type="bool"),
            force=dict(required=False, default=False, type="bool"),
            diff_peek=dict(
                default=None
            ),  # Internal use only, for internal checks in the action plugins
            validate=dict(
                required=False, default=None
            ),  # Internal use only, for template and copy
            src=dict(required=False, default=None, type="path"),
        ),
        add_file_common_args=True,
        supports_check_mode=True,
    )

    params = module.params
    state = params["state"]
    recurse = params["recurse"]
    force = params["force"]
    diff_peek = params["diff_peek"]
    src = params["src"]
    b_src = to_bytes(src, errors="surrogate_or_strict")
    follow = params["follow"]

    # modify source as we later reload and pass, specially relevant when used by other modules.
    path = params["path"]
    b_path = to_bytes(path, errors="surrogate_or_strict")

    # short-circuit for diff_peek
    if diff_peek is not None:
        appears_binary = False
        try:
            f = open(b_path, "rb")
            head = f.read(8192)
            f.close()
            if b("\x00") in head:
                appears_binary = True
        except:
            pass
        module.exit_json(path=path, changed=False, appears_binary=appears_binary)

    prev_state = get_state(b_path)

    # state should default to file, but since that creates many conflicts,
    # default to 'current' when it exists.
    if state is None:
        if prev_state != "absent":
            state = prev_state
        elif recurse:
            state = "directory"
        else:
            state = "file"

    # source is both the source of a symlink or an informational passing of the src for a template module
    # or copy module, even if this module never uses it, it is needed to key off some things
    if src is None:
        if state in ("link", "hard"):
            if follow and state == "link":
                # use the current target of the link as the source
                src = to_native(os.path.realpath(b_path), errors="strict")
                b_src = to_bytes(os.path.realpath(b_path), errors="strict")
            else:
                module.fail_json(msg="src and dest are required for creating links")

    # original_basename is used by other modules that depend on file.
    if state not in ("link", "absent") and os.path.isdir(b_path):
        basename = None
        if params["original_basename"]:
            basename = params["original_basename"]
        elif src is not None:
            basename = os.path.basename(src)
        if basename:
            params["path"] = path = os.path.join(path, basename)
            b_path = to_bytes(path, errors="surrogate_or_strict")

    # make sure the target path is a directory when we're doing a recursive operation
    if recurse and state != "directory":
        module.fail_json(
            path=path, msg="recurse option requires state to be 'directory'"
        )

    file_args = module.load_file_common_arguments(params)

    changed = False
    diff = {
        "before": {"path": path},
        "after": {"path": path},
    }

    state_change = False
    if prev_state != state:
        diff["before"]["state"] = prev_state
        diff["after"]["state"] = state
        state_change = True

    if state == "absent":
        if state_change:
            if not module.check_mode:
                if prev_state == "directory":
                    try:
                        shutil.rmtree(b_path, ignore_errors=False)
                    except Exception as e:
                        module.fail_json(msg="rmtree failed: %s" % to_native(e))
                else:
                    try:
                        os.unlink(b_path)
                    except Exception as e:
                        module.fail_json(
                            path=path, msg="unlinking failed: %s " % to_native(e)
                        )
            module.exit_json(path=path, changed=True, diff=diff)
        else:
            module.exit_json(path=path, changed=False)

    elif state == "file":
        if state_change:
            if follow and prev_state == "link":
                # follow symlink and operate on original
                b_path = os.path.realpath(b_path)
                path = to_native(b_path, errors="strict")
                prev_state = get_state(b_path)
                file_args["path"] = path

        if prev_state not in ("file", "hard"):
            # file is not absent and any other state is a conflict
            module.fail_json(
                path=path, msg="file (%s) is %s, cannot continue" % (path, prev_state)
            )

        changed = module.set_fs_attributes_if_different(
            file_args, changed, diff, expand=False
        )
        module.exit_json(path=path, changed=changed, diff=diff)

    elif state == "directory":
        if follow and prev_state == "link":
            b_path = os.path.realpath(b_path)
            path = to_native(b_path, errors="strict")
            prev_state = get_state(b_path)

        if prev_state == "absent":
            if module.check_mode:
                module.exit_json(changed=True, diff=diff)
            changed = True
            curpath = ""

            try:
                # Split the path so we can apply filesystem attributes recursively
                # from the root (/) directory for absolute paths or the base path
                # of a relative path.  We can then walk the appropriate directory
                # path to apply attributes.
                for dirname in path.strip("/").split("/"):
                    curpath = "/".join([curpath, dirname])
                    # Remove leading slash if we're creating a relative path
                    if not os.path.isabs(path):
                        curpath = curpath.lstrip("/")
                    b_curpath = to_bytes(curpath, errors="surrogate_or_strict")
                    if not os.path.exists(b_curpath):
                        try:
                            os.mkdir(b_curpath)
                        except OSError as ex:
                            # Possibly something else created the dir since the os.path.exists
                            # check above. As long as it's a dir, we don't need to error out.
                            if not (
                                ex.errno == errno.EEXIST and os.path.isdir(b_curpath)
                            ):
                                raise
                        tmp_file_args = file_args.copy()
                        tmp_file_args["path"] = curpath
                        changed = module.set_fs_attributes_if_different(
                            tmp_file_args, changed, diff, expand=False
                        )
            except Exception as e:
                module.fail_json(
                    path=path,
                    msg="There was an issue creating %s as requested: %s"
                    % (curpath, to_native(e)),
                )

        # We already know prev_state is not 'absent', therefore it exists in some form.
        elif prev_state != "directory":
            module.fail_json(
                path=path, msg="%s already exists as a %s" % (path, prev_state)
            )

        changed = module.set_fs_attributes_if_different(
            file_args, changed, diff, expand=False
        )

        if recurse:
            changed |= recursive_set_attributes(
                module,
                to_bytes(file_args["path"], errors="surrogate_or_strict"),
                follow,
                file_args,
            )

        module.exit_json(path=path, changed=changed, diff=diff)

    elif state in ("link", "hard"):
        if not os.path.islink(b_path) and os.path.isdir(b_path):
            relpath = path
        else:
            b_relpath = os.path.dirname(b_path)
            relpath = to_native(b_relpath, errors="strict")

        absrc = os.path.join(relpath, src)
        b_absrc = to_bytes(absrc, errors="surrogate_or_strict")
        if not force and not os.path.exists(b_absrc):
            module.fail_json(
                path=path,
                src=src,
                msg='src file does not exist, use "force=yes" if you really want to create the link: %s'
                % absrc,
            )

        if state == "hard":
            if not os.path.isabs(b_src):
                module.fail_json(msg="absolute paths are required")
        elif prev_state == "directory":
            if not force:
                module.fail_json(
                    path=path,
                    msg="refusing to convert between %s and %s for %s"
                    % (prev_state, state, path),
                )
            elif len(os.listdir(b_path)) > 0:
                # refuse to replace a directory that has files in it
                module.fail_json(
                    path=path,
                    msg="the directory %s is not empty, refusing to convert it" % path,
                )
        elif prev_state in ("file", "hard") and not force:
            module.fail_json(
                path=path,
                msg="refusing to convert between %s and %s for %s"
                % (prev_state, state, path),
            )

        if prev_state == "absent":
            changed = True
        elif prev_state == "link":
            b_old_src = os.readlink(b_path)
            if b_old_src != b_src:
                diff["before"]["src"] = to_native(b_old_src, errors="strict")
                diff["after"]["src"] = src
                changed = True
        elif prev_state == "hard":
            if not (
                state == "hard" and os.stat(b_path).st_ino == os.stat(b_src).st_ino
            ):
                changed = True
                if not force:
                    module.fail_json(
                        dest=path,
                        src=src,
                        msg="Cannot link, different hard link exists at destination",
                    )
        elif prev_state == "file":
            changed = True
            if not force:
                module.fail_json(
                    dest=path,
                    src=src,
                    msg="Cannot link, %s exists at destination" % prev_state,
                )
        elif prev_state == "directory":
            changed = True
            if os.path.exists(b_path):
                if state == "hard" and os.stat(b_path).st_ino == os.stat(b_src).st_ino:
                    module.exit_json(path=path, changed=False)
                elif not force:
                    module.fail_json(
                        dest=path,
                        src=src,
                        msg="Cannot link, different hard link exists at destination",
                    )
        else:
            module.fail_json(dest=path, src=src, msg="unexpected position reached")

        if changed and not module.check_mode:
            if prev_state != "absent":
                # try to replace atomically
                b_tmppath = to_bytes(os.path.sep).join(
                    [
                        os.path.dirname(b_path),
                        to_bytes(".%s.%s.tmp" % (os.getpid(), time.time())),
                    ]
                )
                try:
                    if prev_state == "directory" and state == "link":
                        os.rmdir(b_path)
                    elif prev_state == "directory" and state == "hard":
                        if os.path.exists(b_path):
                            os.remove(b_path)
                    if state == "hard":
                        os.link(b_src, b_tmppath)
                    else:
                        os.symlink(b_src, b_tmppath)
                    os.rename(b_tmppath, b_path)
                except OSError as e:
                    if os.path.exists(b_tmppath):
                        os.unlink(b_tmppath)
                    module.fail_json(
                        path=path,
                        msg="Error while replacing: %s"
                        % to_native(e, nonstring="simplerepr"),
                    )
            else:
                try:
                    if state == "hard":
                        os.link(b_src, b_path)
                    else:
                        os.symlink(b_src, b_path)
                except OSError as e:
                    module.fail_json(
                        path=path,
                        msg="Error while linking: %s"
                        % to_native(e, nonstring="simplerepr"),
                    )

        if module.check_mode and not os.path.exists(b_path):
            module.exit_json(dest=path, src=src, changed=changed, diff=diff)

        changed = module.set_fs_attributes_if_different(
            file_args, changed, diff, expand=False
        )
        module.exit_json(dest=path, src=src, changed=changed, diff=diff)

    elif state == "touch":
        if not module.check_mode:
            if prev_state == "absent":
                try:
                    open(b_path, "wb").close()
                except OSError as e:
                    module.fail_json(
                        path=path,
                        msg="Error, could not touch target: %s"
                        % to_native(e, nonstring="simplerepr"),
                    )
            elif prev_state in ("file", "directory", "hard"):
                try:
                    os.utime(b_path, None)
                except OSError as e:
                    module.fail_json(
                        path=path,
                        msg="Error while touching existing target: %s"
                        % to_native(e, nonstring="simplerepr"),
                    )
            else:
                module.fail_json(
                    msg="Cannot touch other than files, directories, and hardlinks (%s is %s)"
                    % (path, prev_state)
                )
            try:
                module.set_fs_attributes_if_different(
                    file_args, True, diff, expand=False
                )
            except SystemExit as e:
                if e.code:
                    # We take this to mean that fail_json() was called from
                    # somewhere in basic.py
                    if prev_state == "absent":
                        # If we just created the file we can safely remove it
                        os.remove(b_path)
                raise e

        module.exit_json(dest=path, changed=True, diff=diff)

    module.fail_json(path=path, msg="unexpected position reached")