Function foo

    line 1432
    FAILED to compute RF
      line 334
      FAILED to compute RF
        line 674
        FAILED to compute RF
          line 669
          FAILED to compute RF
        line 1256
        FAILED to compute RF
          line 1251
          FAILED to compute RF
        line 1183
        FAILED to compute RF
          line 849
          FAILED to compute RF
        line 285
        FAILED to compute RF
        line 33
        FAILED to compute RF
          line 28
          FAILED to compute RF
        line 1362
        FAILED to compute RF
          line 1924
          FAILED to compute RF
    line 1747
    FAILED to compute RF
      line 1492
      FAILED to compute RF
    line 1838
    FAILED to compute RF
      line 1833
      FAILED to compute RF
    line 2025
    FAILED to compute RF
      line 2021
      FAILED to compute RF