forrtl: error (72): floating overflow using PEST

[Christian Montoro Paredes]

Dear all,

I am having a problem when running Pest for a mf6 model built in ModelMuse. After some calibration iterations I get the following error in the cmd window that stops the calibration process:

forrtl: error (72): floating overflow

and the following information below:

ERROR
In line 5233, "  INTERPOLATE 449104 4067101 hd_OBH12_H5_41 hd_OBH12_H6_41 hd_OBH12_H7_41 hd_OBH12_H8_41", there is no observation associated with HD_OBH12_H5_41. (custominputreader.pas, line 617)

Elapsed time: 0:00:00
elapsed time: 0 hours, 08 minutes 13.53 seconds

 ******************************************************************************
 Error condition prevents continued PEST execution:-

 Unexpected end to model output file mcal14_1_5.Mf6Values. Instruction line
 follows -
 "l1 @OBH12_41@ !OBH12_41!"
 ******************************************************************************

Thanks

[Richard Winston]

It is likely that MODFLOW stopped prematurely because of convergence failure or other problems. You can use an option in MODFLOW to continue despite converge failure. However, if MODFLOW failed for other reasons,  you may need to restrict the parameters being tested more tightly. For example, don't allow it to test negative values of hydraulic conductivity. 

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This group was created in 2004 by Mr. C. P. Kumar, Former Scientist 'G', National Institute of Hydrology, Roorkee. Please visit his webpage at https://www.angelfire.com/nh/cpkumar/
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