Syntax:
pragma Default_Initial_Condition [ (null | boolean_EXPRESSION) ];
For the semantics of this pragma, see the entry for aspect
Default_Initial_Condition
in the SPARK 2014 Reference Manual, section 7.3.3.
This is an assertion kind pragma that can associate a set of its arguments with an assertion level. See SPARK 2014 Reference Manual, section 11.4.2.