fos_user_security_logout route not working

#app/config/security.yml

security: access_denied_url: /response/access-denied encoders: FOS\UserBundle\Model\UserInterface: sha512 acl: connection: default

role_hierarchy:
    #ROLE_ADMIN:       ROLE_USER
    #ROLE_SUPER_ADMIN: [ROLE_USER, ROLE_ADMIN, ROLE_ALLOWED_TO_SWITCH]

providers:
    fos_userbundle:
        id: fos_user.user_provider.username_email



firewalls:
    main:
        pattern: ^/
        form_login:
            provider: fos_userbundle
            csrf_provider: form.csrf_provider
            failure_handler: authentication_handler
            success_handler: authentication_handler
        logout:  
            path:   fos_user_security_logout
            target: /logout
            success_handler: authentication_handler
        anonymous:    true

access_control:
    #- { path: ^/login$, role: IS_AUTHENTICATED_ANONYMOUSLY, requires_channel: https}
    - { path: ^/login$, role: IS_AUTHENTICATED_ANONYMOUSLY }
    - { path: ^/register, role: IS_AUTHENTICATED_ANONYMOUSLY }
    - { path: ^/resetting, role: IS_AUTHENTICATED_ANONYMOUSLY, requires_channel: https**}**
    #- { path: ^/resetting, role: IS_AUTHENTICATED_ANONYMOUSLY }
    #- { path: ^/admin/, role: ROLE_ADMIN }
    - { path: ^/$, roles: IS_AUTHENTICATED_ANONYMOUSLY }

hi i'm new to symfony and i'm trying to logout the user but the route is not working kindly help

security.xml ---fosuserbudle config

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<route id="fos_user_security_login" pattern="/login">
    <default key="_controller">FOSUserBundle:Security:login</default>
</route>

<route id="fos_user_security_check" pattern="/login_check">
    <default key="_controller">FOSUserBundle:Security:check</default>
    <requirement key="_method">POST</requirement>
</route>

<route id="fos_user_security_logout" pattern="/logout">
    <default key="_controller">FOSUserBundle:Security:logout</default>
</route>

app/config/routing.yml file

fos_user_security: resource: "@FOSUserBundle/Resources/config/routing/security.xml"