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Proof step 7 from proof crash-neutral-writepage (previous step)

# buf = VFS_PAGE_SIZE, dirs0 = dirs \ orphans(dirs, files), files0 = files \ orphans(dirs, files), inode = mkinode(m, md, boolvar, m0, m1, m2), afs-cons(dirs, files), m ∈ files ⊦ ⟨{files[inode.ino].content[pageno] := buf; err := ESUCCESS} or fail#(; ; err); asynced := ?⟩ (asynced ∧ dirs0 = dirs \ orphans(dirs, files) ∧ files0 = files \ orphans(dirs, files))

Heuristic symbolic execution applied rule or right

And obtained the following new goals

Proof step 8:
# buf = VFS_PAGE_SIZE, dirs0 = dirs \ orphans(dirs, files), files0 = files \ orphans(dirs, files), inode = mkinode(m, md, boolvar, m0, m1, m2), afs-cons(dirs, files), m ∈ files ⊦ ⟨fail#(; ; err); asynced := ?⟩ (asynced ∧ dirs0 = dirs \ orphans(dirs, files) ∧ files0 = files \ orphans(dirs, files)), ⟨files[inode.ino].content[pageno] := buf; err := ESUCCESS; asynced := ?⟩ (asynced ∧ dirs0 = dirs \ orphans(dirs, files) ∧ files0 = files \ orphans(dirs, files))

Proof step 7 from proof crash-neutral-writepage (previous step)

Heuristic symbolic execution applied rule or right

And obtained the following new goals

Rule argument

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