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Proof step 27 from proof inv-readpage (previous step)

# buf = VFS_PAGE_SIZE, boolvar ↔ datakey(m, pageno) ∈ ri, ¬ boolvar, err = err0, err = ESUCCESS, ro.inodes?, fo.inodes?, file-node-cons(fs, ri), log-cons(log, fs), orphans-cons(fs, ri, ro), replay-cons-strong(fs, ri, ro, fi, fo, log), ri-inj(ri), ri-inj(fi), ubifs-cons(fs, ri, ro, fi, fo, log), inodekey(m) ∈ ri, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪buf := fill(buf, zero)⟫ true, fs[ri[inodekey(m)]].directory

Heuristic symbolic execution applied rule assign right

And closed the goal!

Rule argument

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