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Proof step 3 from proof inv-truncate (previous step)

ro.inodes?, fo.inodes?, log-cons(log, fs), ri-inj(ri), ri-inj(fi) ⊦ ⟪aubifs_core_index_truncate#(key, n, fi, ro, fo, fs, log, boolvar; ri)⟫ ri-inj(ri)

Heuristic unfold applied rule call right

And obtained the following new goals

Proof step 4:
fo.inodes?, ro.inodes?, log-cons(log, fs), ri-inj(fi), ri-inj(ri) ⊦ ⟪let ks = datakeys(key, n, ri) in ri := ri \ ks⟫ ri-inj(ri)

Rule argument

pos: right 1

Additional information

Used simplifier rules: truncate: ⊦ ;