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Proof step 83 from proof refine-readpage (previous step)

# buf0 = VFS_PAGE_SIZE, 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⌋ , asynced → boolvar2 ⊦ ⟨fail#(; ; err)⟩ ((asynced → boolvar2) ∧ err0 = err), fs[ri[inodekey(m)]].directory, datakey(m, pageno) ∈ ri, (asynced → boolvar2) ∧ buf0 = zeropage ∧ err0 = ESUCCESS

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 84:
# buf0 = VFS_PAGE_SIZE, 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, ⌊err0⌋ , ¬ fs[ri[inodekey(m)]].directory, ¬ datakey(m, pageno) ∈ ri, asynced → boolvar2 ⊦ ⟨fail#(; ; err)⟩ ((asynced → boolvar2) ∧ err0 = err)

Rule argument

Additional information

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