Is this trigger leak proof?

[Raj91]

Can some one please tell me if this is leak proof. If so, can you tell me how to fix it. Thank You.

-Event
Map initialization
Conditions
-Actions
Unit Group - Pick every unit in (Units in Play_Area owned by Neutral Hostile) and do (Actions)
-Loop-Actions
Set Temp_Integer = (Temp_Integer + 1)
Unit - Set the custom value of (Picked unit) to Temp_Integer
Set Creep_Point[Temp_Integer] = (Position of (Picked unit))
Custom script: call RemoveLocation (udg_Play_Area)