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Proof step 7 from proof inv-readpage (previous step)

# buf = VFS_PAGE_SIZE, inode = mkinode(m, md, boolvar, m0, m1, m2), afs-cons(dirs, files), m ∈ files ⊦ ⟪if pageno ∈ files[inode.ino].content then buf := files[inode.ino].content[pageno] else buf := zeropage; err := ESUCCESS⟫ true

Heuristic conditional right split applied rule if right

And obtained the following new goals

Proof step 8:
# buf = VFS_PAGE_SIZE, inode = mkinode(m, md, boolvar, m0, m1, m2), afs-cons(dirs, files), pageno ∈ files[inode.ino].content, m ∈ files ⊦ ⟪buf := files[inode.ino].content[pageno]; err := ESUCCESS⟫ true
Proof step 10:
# buf = VFS_PAGE_SIZE, inode = mkinode(m, md, boolvar, m0, m1, m2), afs-cons(dirs, files), m ∈ files ⊦ ⟪buf := zeropage; err := ESUCCESS⟫ true, pageno ∈ files[inode.ino].content

Rule argument

pos: right 1

Proof step 7 from proof inv-readpage (previous step)

Heuristic conditional right split applied rule if right

And obtained the following new goals

Rule argument

Additional information