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Proof step 48 from proof refine-iget (previous step)

dirs = abs-dirs(fs, ri), err = err1, files = abs-files(fs, ri), inode = p_inode, inode0 = p_inode, 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(ino) ∈ ri, ⌊err0⌋ , asynced → boolvar1 ⊦ ⟨if pre-iget(ino, dirs, files) then {{inode := getinode(ino, dirs, files); err := ESUCCESS} or fail#(; ; err)} else abort⟩ ((asynced → boolvar1) ∧ inode0 = inode ∧ err0 = err)

Heuristic symbolic execution applied rule if positive right

And obtained the following new goals

Proof step 49:
dirs = abs-dirs(fs, ri), err = err1, files = abs-files(fs, ri), inode = p_inode, inode0 = p_inode, 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, ⌊err0⌋ , asynced → boolvar1 ⊦ ⟨{inode := getinode(ino, dirs, files); err := ESUCCESS} or fail#(; ; err)⟩ ((asynced → boolvar1) ∧ inode0 = inode ∧ err0 = err)

Rule argument

pos: right 1

Additional information

Used simplifier rules: ⊦ pre-iget(ino, dirs, files) ↔ valid-ino(ino, dirs, files); (s)% ⊦ valid-ino(ino, dirs, files) ↔ ino ∈ dirs ∨ ino ∈ files; (s)%⊦ ino ∈ abs-dirs(fs, ri) ↔ inodekey(ino) ∈ ri ∧ fs[ri[inodekey(ino)]].directory; (s)%⊦ ino ∈ abs-files(fs, ri) ↔ inodekey(ino) ∈ ri ∧ ¬ fs[ri[inodekey(ino)]].directory; (s)