codetoanalyze/c/biabduction/shift.c, return_null_deref1_bad, 2, NULL_DEREFERENCE, ERROR, [start of procedure return_null_deref1_bad(),start of procedure return_depends_on_lshift(),Taking true branch,return from a call to return_depends_on_lshift]
codetoanalyze/c/biabduction/shift.c, return_null_deref2_bad, 2, NULL_DEREFERENCE, ERROR, [start of procedure return_null_deref2_bad(),start of procedure return_depends_on_rshift(),Taking true branch,return from a call to return_depends_on_rshift]