directory file line function property kind status property . provenance_via_io_bytewise_global.c 8 main precondition of fwrite Unknown valid_stream: \valid(stream) . provenance_via_io_bytewise_global.c 14 main initialization Unknown \initialized(&r) . provenance_via_io_bytewise_global.c 16 main mem_access Invalid or unreachable \valid(r) FRAMAC_SHARE/libc stdio.h 409 fwrite precondition Unknown valid_stream: \valid(stream)