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Proof step 17 from proof prepost-write-superblock (previous step)

# buf0 = encoding-size(sb, EB_PAGE_SIZE), avol0 = avol, # avol ≠ 0, ebm-vol-inv(avol), is-encoded(sb, buf0), encoding-size(sb, EB_PAGE_SIZE) ≤ LEB_SIZE ⊦ ⟪ebm_avol_change#(0, encoding-size(sb, EB_PAGE_SIZE), buf0; avol; err)⟫ ( (err = ESUCCESS ∨ ⌊err⌋ ) ∧ ebm-vol-inv(avol) ∧ (err = ESUCCESS → id○(avol, avol0, 0) ∧ (∃ buf. is-encoded(sb, buf) ∧ avol[0] = mapped(buf))) ∧ (err ≠ ESUCCESS → avol = avol0))

User applied rule insert program lemma

And obtained the following new goals

Rule argument

spec: ebm-avol-asm name: inv-change seq: ebm-vol-inv(avol), m < # avol, n ≤ # buf, n ≤ LEB_SIZE, is-aligned(n, EB_PAGE_SIZE) ⊦ ⟪ebm_avol_change#(m, n, buf; avol; err)⟫ ebm-vol-inv(avol) subst: [buf, n, m, avol, err] → [buf0, encoding-size(sb, EB_PAGE_SIZE), 0, avol, err] flags: List([[1,0,0]])

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