Any hints required: a very strange behaviour in a code, unfortunately
minimal example tedious to construct. Perhaps somebody has any ideas, if
not, I will try to construct a minimal example.

The following behaviour, a package with type parameter VEL has several
functions. All compile (trivial code), while X and YY can be used, the
call of PhiKG causes the shown error, FriCAS goes in debugging mode, I
have not the slightest idea what is going on.


 FMRKG ==> FreeModuleRectangleKG(K, G, VEL, V, Y)
  VR    ==> VelocityRectangle(K, G, VEL, V)
  Exports ==>  with
    X : VEL -> VEL
    Z : (VEL, FMRKG) -> FMRKG
    ZZ : VEL -> FMRKG
    YY : FMRKG -> FMRKG
    PhiKG: VEL -> FMRKG


after the following statement it breaks.
i

(265) -> PhiKG(V.1)$VFG

debugger invoked on a SIMPLE-CONDITION: break

Type HELP for debugger help, or (SB-EXT:EXIT) to exit from SBCL.

restarts (invokable by number or by possibly-abbreviated name):
  0: [CONTINUE] Return from BREAK.

(|evalSlotDomain| 11 #1=#((|VelocityFunctionKG| #2=(|Fraction|
#3=(|Integer|)) #4=(|CyclicGroup4d|) #5=(|CyclicTwoDimensionalVelocity|
#2#) #6=(#7=((0 .

.....


|velocities| 40 ...)) NIL 63 (#(|TwoDimensionalVelocityCategory&|
|VelocityCategory&| |Module&| T T T T |AbelianGroup&| T |AbelianMonoid&|
|AbelianSemiGroup&| |MonoidAction&| ...) #(# # # # # # # # # # # # ...)
. #(0 6 0 10 0 7 0 11 2 8 6 0 ...)) #46=#((|List| #2#) (#42# #46# #) NIL
261759 (# # . #) #(# # NIL 130879 # NIL #31# 1 # # # # ...) #31#
(#<FUNCTION |LIST;nil;$;1|> . #46#) (|Boolean|) (#<FUNCTION
|LIST;null;$B;2|> . #46#) (#<FUNCTION |LIST;cons;S2$;3|> . #46#)
(#<FUNCTION |LIST;append;3$;4|> . #46#) ...) #31# #41# #46# (#<FUNCTION
|TDV;construct;2K$;1|> . #45#) (#40# #45# 0 . |One|) (#40# #45# 4 .
|One|) ...) #31# (|List| $) #41# (#<FUNCTION |CYCGRP;generators;L;20|> .
#43#) 1 (|Boolean|) ...) #6# #25# #28# ...))
0] :

   >> System error:
   illegal terminating character after a colon: #\Newline

  Stream: #<SYNONYM-STREAM :SYMBOL *TERMINAL-IO* {10001C7323}>

-- 
Mit freundlichen Grüßen

Johannes Grabmeier

Prof. Dr. Johannes Grabmeier
Köckstraße 1, D-94469 Deggendorf
Tel. +49-(0)-991-2979584, Tel. +49-(0)-151-681-70756
Tel. +49-(0)-991-3615-141 (d),  Fax: +49-(0)-3224-192688

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