Function foo

    line 26
    FAILED to compute RF
      line 8
      FAILED to compute RF
      line 155
      FAILED to compute RF
        line 155
        FAILED to compute RF
      line 44
      FAILED to compute RF
      line 85
      FAILED to compute RF
        line 85
        FAILED to compute RF
        line 137
        FAILED to compute RF
        line 121
        FAILED to compute RF