Why some values in program are automaticly increment?

Why some values in program are automaticly increment after starting ‘At selection screen output’ section.

I’ve got an programm, which is used in few transactions. 
In one of it values are changing after starting an ‘At selection screen output’  section, and at second values are not changing.
There is no some additional inizialization, the code before ‘At selection screen output is the same.

i try to find authorization object at su24, and one t-code has it, but there are no values that are aoutomaticly increments
in it.
what it can be if it not an authorization object, or mb values can initialize somwhere else( not in su24 ) ?

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