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Proof step 34 from proof refine-readpage (previous step)

# buf0 = VFS_PAGE_SIZE, fs[ri[datakey(m, pageno)]] = datanode(key, buf1), 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), ri[datakey(m, pageno)] ∈ fs, datakey(m, pageno) ∈ ri, inodekey(m) ∈ ri, ¬ fs[ri[inodekey(m)]].directory, asynced → boolvar2 ⊦ ⟨buf := abs-content(m, fs, ri)[pageno]; err := ESUCCESS⟩ ((asynced → boolvar2) ∧ copy(buf1, 0, buf0, 0, VFS_PAGE_SIZE) = buf ∧ ESUCCESS = err), ⟨fail#(; ; err)⟩ ((asynced → boolvar2) ∧ copy(buf1, 0, buf0, 0, VFS_PAGE_SIZE) = buf0 ∧ ESUCCESS = err)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 35:
# buf0 = VFS_PAGE_SIZE, fs[ri[datakey(m, pageno)]] = datanode(key, buf1), 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), pageno ∈ abs-content(m, fs, ri), inodekey(m) ∈ ri, datakey(m, pageno) ∈ ri, ri[datakey(m, pageno)] ∈ fs, asynced → boolvar2 ⊦ ⟨err := ESUCCESS⟩ ((asynced → boolvar2) ∧ copy(buf1, 0, buf0, 0, VFS_PAGE_SIZE) = abs-content(m, fs, ri)[pageno] ∧ ESUCCESS = err), ⟨fail#(; ; err)⟩ ((asynced → boolvar2) ∧ copy(buf1, 0, buf0, 0, VFS_PAGE_SIZE) = buf0 ∧ ESUCCESS = err), fs[ri[inodekey(m)]].directory

Rule argument

Additional information

Used simplifier rules: ⊦ n ∈ abs-content(ino, fs, ri) ↔ datakey(ino, n) ∈ ri; (s)% ⊦ ¬ key ∈ ri → ri[key] = (∅)[key]; (s)