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Proof step 3 from proof abs-nodes-add-crash-aligned-nodes (previous step)

# buf1 = x0.flashsize, abs-nodes(buf1, # buf0, x0, lax0, false), abs-nodes(buf0, 0, x, lax, false) ⊦ abs-nodes((buf0 + buf1).align↓, 0, x + x0, lax + lax0, boolvar) ↔ is-aligned(# buf0 + x0.flashsize, EB_PAGE_SIZE), x0 = []

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 4:
⊦ x = [] ↔ ¬(∃ y, a. x = y + a ')
Proof step 5:
# buf1 = x0.flashsize, abs-nodes(buf0, 0, x, lax, false), abs-nodes(buf1, # buf0, x0, lax0, false) ⊦ abs-nodes((buf0 + buf1).align↓, 0, x + x0, lax + lax0, boolvar) ↔ is-aligned(# buf0 + x0.flashsize, EB_PAGE_SIZE), ∀ y, a. x0 ≠ y + a '

Rule argument

spec: list name: lastdiv-rew seq: ⊦ x = [] ↔ ¬(∃ y, a. x = y + a ') subst: [x] → [x0] flags: <all paths>

Additional information

Used terms: x0