[Imprint][Data Privacy Statement][E-Mail]

View long theorem info. View the proof. Back to main index. View the specification. View theorem base summary, View theorem base listing, the used properties by spec, the dependency list, the symbol table,

Proof step 7 from proof write-loop-err (previous step)

err = ESUCCESS, ¬ isdir ⊦ [vfs_write_block#(ino1, inode, buf, ino0, dirs; ino, isdir, err, files, asynced)] (err = ESUCCESS ∨ ⌊err⌋ )

User applied rule call right

And obtained the following new goals

Proof step 8:
⊦
Proof step 9:
err = ESUCCESS, ino0 = ino, ino1 = ino4, ino2 = ino3, ¬ isdir ⊦ [let pageno = (ino2 + ino0) / VFS_PAGE_SIZE, ino = (ino2 + ino0) % VFS_PAGE_SIZE in let n = min(ino1 - ino2 + ino0, VFS_PAGE_SIZE - ino) in if n ≠ 0 then {vfs_writepage#(inode, pageno, buf, ino0, ino, n, dirs; err, files, asynced); if err = ESUCCESS then ino0 := ino0 + n} else isdir := true] (err = ESUCCESS ∨ ⌊err⌋ )

Rule argument

pos: right 1

Additional information

Used simplifier rules: write-block: ⊦ ;