- content:
  - invariant:
      ensures: ((\old(n) <= 2))
      format: acsl_expression
      location:
        file_name: null
        function: f
        line: 5
      requires: ((\old(n) <= 2))
      type: function_contract
  entry_type: invariant_set
  metadata:
    format_version: '3.0'
