                function values and any column of the Jacobian is at
                most FACTOR*EPS in absolute value (FACTOR = 100);
          = 4:  TOL* is too small: no further reduction in the sum
                of squares is possible.
          The digit k is normally 0, but if INIT = 'L' or 'B', it
          can have a value in the range 1 to 6 (see IB01AD, IB01BD
          and IB01CD). In all these cases, the entries DWORK(1:5),
          DWORK(6:10) (if INIT = 'S' or 'B'), and
          DWORK(11:1