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Proof step 18 from proof refine-link (previous step)

fs[ri[inodekey(m)]].nlink = 0, fs[ri[inodekey(m)]].directory, fs[ri[inodekey(ino)]].directory, 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(ino) ∈ ri, inodekey(fs[ri[dentrykey(ino, str)]].ino) ∈ ri, inodekey(m) ∈ ri, dentrykey(ino, str) ∈ ri, asynced → boolvar, links(fs[ri[dentrykey(ino, str)]].ino, abs-dirs(fs, ri)) ≠ ∅ ∨ fs[ri[dentrykey(ino, str)]].ino = ROOT_INO, links(m, abs-dirs(fs, ri)) ≠ ∅ ∨ m = ROOT_INO, links(ino, abs-dirs(fs, ri)) ≠ ∅ ∨ ino = ROOT_INO ⊦ m = ROOT_INO, fs[ri[inodekey(fs[ri[dentrykey(ino, str)]].ino)]].directory, dentrykey(m, str0) ∈ ri

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Used simplifier rules: size-zero: ⊦ # ls ≠ 0 → ls ≠ ∅; (forward) from specification set-basic[alink-set]%size-zero-01: ⊦ ls ≠ ∅ → # ls ≠ 0; (forward) from specification set-basic[alink-set]