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Proof step 64 from proof refine-readpage (previous step)

# buf0 = VFS_PAGE_SIZE, buf = buf0, err = err0, orphans(fs, ri).inodes?, fo.inodes?, afs-cons(abs-dirs(fs, ri), abs-files(fs, ri)), file-node-cons(fs, ri), log-cons(log, fs), orphans-cons(fs, ri, orphans(fs, ri)), replay-cons-strong(fs, ri, orphans(fs, ri), fi, fo, log), ri-inj(ri), ri-inj(fi), ubifs-cons(fs, ri, orphans(fs, ri), fi, fo, log), inodekey(m) ∈ ri, asynced → boolvar2, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟨afs_readpage#(mkinode(m, md, boolvar1, m0, m1, m2), pageno, abs-dirs(fs, ri), abs-files(fs, ri), asynced; buf0, err1)⟩ ((asynced → boolvar2) ∧ buf = buf0 ∧ err = err1), err = ESUCCESS, fs[ri[inodekey(m)]].directory

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 65:
# buf0 = VFS_PAGE_SIZE, buf = buf0, fo.inodes?, orphans(fs, ri).inodes?, afs-cons(abs-dirs(fs, ri), abs-files(fs, ri)), file-node-cons(fs, ri), log-cons(log, fs), orphans-cons(fs, ri, orphans(fs, ri)), replay-cons-strong(fs, ri, orphans(fs, ri), fi, fo, log), ri-inj(fi), ri-inj(ri), ubifs-cons(fs, ri, orphans(fs, ri), fi, fo, log), inodekey(m) ∈ ri, ⌊err0⌋ , ¬ fs[ri[inodekey(m)]].directory, asynced → boolvar2 ⊦ ⟨afs_readpage#(mkinode(m, md, boolvar1, m0, m1, m2), pageno, abs-dirs(fs, ri), abs-files(fs, ri), asynced; buf0, err1)⟩ ((asynced → boolvar2) ∧ buf = buf0 ∧ err0 = err1)

Rule argument

Additional information

Used simplifier rules: ⊦ ⌊err⌋ → err ≠ ESUCCESS; (s)