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Proof step 2 from proof abs-nodes-case-distinction-h (previous step)

abs-nodes(buf, m, x, lax, true) ⊦ ∃ buf0, buf1. buf = buf0 + buf1 ∧ ( abs-padding(buf0) ∧ abs-nodes(buf1, m + # buf0, x, lax, true) ∨ x ≠ [] ∧ lax ≠ [] ∧ lax.head = @(m, x.head.flashsize) ∧ abs-node(buf0, x.head) ∧ abs-nodes(buf1, m + # buf0, x.tail, lax.tail, true)), x = [] ∧ # buf = 0, x = [] ∧ abs-failed(buf)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
abs-nodes(buf, m, x, lax, true) ⊦ ∃ buf0, buf1. buf = buf0 + buf1 ∧ ( abs-padding(buf0) ∧ abs-nodes(buf1, m + # buf0, x, lax, true) ∨ x ≠ [] ∧ lax ≠ [] ∧ lax.head = @(m, 2 * NODE_HEADER_SIZE + x.head.alignedsize) ∧ abs-node(buf0, x.head) ∧ abs-nodes(buf1, m + # buf0, x.tail, lax.tail, true)), x = [] ∧ abs-failed(buf), x = [] ∧ buf = mkbuf(0)

Rule argument

Additional information

Used simplifier rules: ⊦ nd.flashsize = 2 * NODE_HEADER_SIZE + nd.alignedsize; (s)% ⊦ # buf = 0 ↔ buf = mkbuf(0); (s)