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Proof step 12 from proof crash-neutral-readpage (previous step)

# buf = VFS_PAGE_SIZE, files[m] = mkfile(m0, md, # links(m, dirs), content), afs-cons(dirs, files), pageno ∈ content, m ∈ files ⊦ ⟨buf := content[pageno]; err := ESUCCESS⟩ true, ⟨fail#(; ; err)⟩ true

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 13:
# buf = VFS_PAGE_SIZE, files[m] = mkfile(m0, md, # links(m, dirs), content), afs-cons(dirs, files), m ∈ files, pageno ∈ content ⊦ ⟨err := ESUCCESS⟩ true, ⟨fail#(; ; err)⟩ true

Proof step 12 from proof crash-neutral-readpage (previous step)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

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