getCoverDelta method
Retrieve the current cover of pred up to level unfoldings.
Returns just the delta that is known at level. To obtain the full set of
properties of pred one should query at level+1, level+2 etc, and
include level=-1.
Implementation
void getCoverDelta(int level, FuncDecl pred) {
_c._z3.fixedpoint_get_cover_delta(
_fp,
level,
_c._createFuncDecl(pred),
);
}