Function foo

    line 465
    FAILED to compute RF
      line 481
      FAILED to compute RF
        line 803
        FAILED to compute RF
        line 112
        FAILED to compute RF
          line 429
          FAILED to compute RF
            line 425
            FAILED to compute RF
          line 382
          FAILED to compute RF
            line 378
            FAILED to compute RF
          line 90
          FAILED to compute RF
        line 42
        FAILED to compute RF
        line 833
        FAILED to compute RF
        line 481
        FAILED to compute RF
    line 72
    FAILED to compute RF
      line 236
      FAILED to compute RF