Definition Gprog : funspecs :=
spec_stdlib.specs ++ spec_fastpile_concrete.ispecs ++ spec_fastpile_concrete.specs.

(*Same statement and proof as verif_pile. Indeed, the C files have the same code duplication...*)
(*Statement and proof also shared with verif_fastpile.v*)
Lemma body_surely_malloc: semax_body Vprog Gprog f_surely_malloc surely_malloc_spec.