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´íÎóÐÅϢΪ£ºundefined value found.
  -Detail: NaN or Inf found when solving linear system using MUMPS
  -Feature: Time-Dependent Sover 1(sol1/t1)

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   Undefined value found.
  -Detail: Undefined value found in the stiffness matrix.
   There are 246806 equations giving NaN/Inf in the matrix rows for the variable mod1.p.
   at coordinates:..............
   and similarly for the degrees of freedom,NaN/Inf in the matrix columns.
   -Feature: Time-Dependent Solver 1(sol1/t1)

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