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Proof step 5 from proof write-loop-err (previous step)

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

User applied rule invariant right

And obtained the following new goals

Proof step 6:
err = ESUCCESS, err0 = ESUCCESS, ¬ isdir, ¬ isdir0, err = ESUCCESS ∨ ⌊err⌋ ⊦ [vfs_write_block#(ino1, inode, buf, ino0, dirs; ino, isdir, err, files, asynced)] (err = ESUCCESS ∨ ⌊err⌋ )

Rule argument

fma: err = ESUCCESS ∨ ⌊err⌋ pos: right 1

Additional information

Used formulas: err = ESUCCESS ∨ ⌊err⌋