[Imprint][Data Privacy Statement][E-Mail]

View long theorem info. View the proof. Back to main index. View the specification. View theorem base summary, View theorem base listing, the used properties by spec, the dependency list, the symbol table,

Proof step 51 from proof crash-neutral-unlink (previous step)

# links(entries0[str], dirs0) = m0 + 1, dirs0[m] = mkdir(m1 + 1, md1, # links(m, dirs0), m2, entries0), files1[entries0[str]] = mkfile(m3, md2, m0 + 1, content), dirs = dirs0[m, mkdir(m1, md, # links(m, dirs0), m2, entries0 -- str)], files = files1[entries0[str], mkfile(m3, md2, m0, content)], inode = mkinode(entries0[str], md0, false, m0 + 1, 0, m5), inode = mkinode(m4, md3, boolvar, m6, m7, m8), afs-cons(dirs0, files1), entries0[str] ∈ files1, str ∈ entries0, m ∈ dirs0, links(m, dirs0) ≠ ∅ ∨ m = ROOT_INO ⊦ ⟨let ino = m4 in if ino ∈ files then {files[ino].size := m8; files[ino].meta := md3} else if ino ∈ dirs then dirs[ino].meta := md3; p_inode := (m ∈ dirs ⊃ mkinode(m, dirs[m].meta, true, dirs[m].nlink, dirs[m].nsubdirs, dirs[m].size) ;mkinode(m, files[m].meta, false, files[m].nlink, 0, files[m].size) ); c_inode := (entries0[str] ∈ dirs ⊃ mkinode(entries0[str], dirs[entries0[str]].meta, true, dirs[entries0[str]].nlink, dirs[entries0[str]].nsubdirs, dirs[entries0[str]].size) ;mkinode(entries0[str], files[entries0[str]].meta, false, files[entries0[str]].nlink, 0, files[entries0[str]].size) ); err := ESUCCESS; asynced := ?⟩ (asynced ∧ dirs0 \ orphans(dirs0, files1) = dirs \ orphans(dirs, files) ∧ files1 \ orphans(dirs0, files1) = files \ orphans(dirs, files)), ∃ err0. ⌊err0⌋ ∧ ⟨err := err0; asynced := ?⟩ asynced

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 52:
# links(entries0[str], dirs0) = m0 + 1, dirs0[m] = mkdir(m1 + 1, md1, # links(m, dirs0), m2, entries0), files1[entries0[str]] = mkfile(m3, md2, m0 + 1, content), afs-cons(dirs0, files1), entries0[str] ∈ files1, str ∈ entries0, m ∈ dirs0, links(m, dirs0) ≠ ∅ ∨ m = ROOT_INO ⊦ ∃ err0. ⌊err0⌋ ∧ ⟨err := err0; asynced := ?⟩ asynced, ⟨let ino = entries0[str] in {files := files1[entries0[str], mkfile(m3, md2, m0, content)]; dirs := dirs0[m, mkdir(m1, md, # links(m, dirs0), m2, entries0 -- str)]; if ino ∈ files then {files[ino].size := m8; files[ino].meta := md3} else if ino ∈ dirs then dirs[ino].meta := md3}; p_inode := (m ∈ dirs ⊃ mkinode(m, dirs[m].meta, true, dirs[m].nlink, dirs[m].nsubdirs, dirs[m].size) ;mkinode(m, files[m].meta, false, files[m].nlink, 0, files[m].size) ); c_inode := (entries0[str] ∈ dirs ⊃ mkinode(entries0[str], dirs[entries0[str]].meta, true, dirs[entries0[str]].nlink, dirs[entries0[str]].nsubdirs, dirs[entries0[str]].size) ;mkinode(entries0[str], files[entries0[str]].meta, false, files[entries0[str]].nlink, 0, files[entries0[str]].size) ); err := ESUCCESS; asynced := ?⟩ (asynced ∧ dirs0 \ orphans(dirs0, files1) = dirs \ orphans(dirs, files) ∧ files1 \ orphans(dirs0, files1) = files \ orphans(dirs, files))

Rule argument

Additional information

Used simplifier rules: ⊦ mkinode(m, md, boolvar, m0, m1, m2) = mkinode(m3, md0, boolvar0, m4, m5, m6) ↔ m = m3 ∧ md = md0 ∧ (boolvar ↔ boolvar0) ∧ m0 = m4 ∧ m1 = m5 ∧ m2 = m6; (ws)