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

ro.inodes?, fo.inodes?, log-cons(log, fs), ri-inj(ri), ri-inj(fi) ⊦ ⟪aubifs_core_index_contains#(key, ri, fi, ro, fo, fs, log, boolvar; boolvar0; err)⟫ true

Heuristic unfold applied rule call right

And obtained the following new goals

Proof step 4:
boolvar0 ↔ boolvar2, boolvar ↔ boolvar1, fo.inodes?, ro.inodes?, log-cons(log, fs), ri-inj(fi), ri-inj(ri) ⊦ ⟪fail_or_success#(; ; err); if err = ESUCCESS then boolvar := key ∈ ri else boolvar := ?⟫ true

Rule argument

pos: right 1

Additional information

Used simplifier rules: contains: ⊦ ;