- content:
  - invariant:
      ensures: (((0 < n) || (\result == 0)))
      format: acsl_expression
      location:
        file_name: null
        function: fibo
        line: 7
      requires: (1)
      type: function_contract
  entry_type: invariant_set
  metadata:
    format_version: '3.0'
