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Proof step 71 from proof prepost-write-orphans (previous step)

avol0 = avol, m1 = n, n < # avol, ebm-vol-inv(avol), err = ESUCCESS → is-encoded-pad(orphans0, # orphans0, buf0) ∧ # buf0 ≤ LEB_SIZE, err = ESUCCESS ∨ ⌊err⌋ ⊦ ⟪skip⟫ ( (err = ESUCCESS ∨ ⌊err⌋ ) ∧ ebm-vol-inv(avol) ∧ id○(avol, avol0, n) ∧ (err = ESUCCESS → avol[n].mapped? ∧ is-encoded-pad(orphans0, # orphans0, avol[n].data))), err = ESUCCESS

Heuristic symbolic execution applied rule skip right

And closed the goal!

Rule argument

Additional information

Used simplifier rules: ⊦ ⌊err⌋ → err ≠ ESUCCESS; (s)% ⊦ id○(avol, avol, n); (ss)