crash optimizing reference counts in phase 15

UTThornReal.sacbugreport

 **** Optimizing reference counting instructions ...
TRAVERSE ERROR: node of type 32:N_id found where 33:N_num was expected!

sac2c -V
sac2c 1.3.3-MijasCosta-711-gf5267
build-type: RELEASE
built-by: "sac" at 2022-01-18T13:13:49

sacbugreport attached

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