[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 60 from proof truncate-inv (previous step)

⟨if n0 ≠ 0 ∧ m2 ∈ content0 then {pageno := m2; if buf-opt.some? then buf := buf-opt.buf else buf := files2[ino4].content[pageno]; buf := fill(buf, zero, n0, VFS_PAGE_SIZE - n0); content[pageno] := buf; buf-opt := some(buf)}⟩ (pageno = pageno1 ∧ buf = buf0 ∧ content = content2 ∧ buf-opt = buf-opt0), ⟨files := files2[ino4, mkfile(m2 * VFS_PAGE_SIZE + n0, md, # links(ino4, dirs), content2 upto (m2 * VFS_PAGE_SIZE + n0))]; files[ino4].meta := md⟩ (dirs = dirs0 ∧ files = files0), files0[ino4] = mkfile(m, md0, m1, content1), files2[ino4] = mkfile(m2 * VFS_PAGE_SIZE + n0, md, # links(ino4, dirs), content0), buf-opt = none, content = content0, content1.stream from m2 * VFS_PAGE_SIZE + n0 ≠ σ⊥, n0 < VFS_PAGE_SIZE, afs-cons(dirs, files2), afs-cons(dirs0, files0), files2 ~ files0, ino4 ∈ files2 ⊦

Heuristic symbolic execution applied rule assign left

And obtained the following new goals

Rule argument

pos: left 2

Additional information