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Proof step 90 from proof refine-read (previous step)

# buf2 = n4 + n3 + n2, # buf1 = # buf2, # buf2 = n0 + n3 + n2, avols[default-volid][m2] = mapped(buf0, n1), m2 < # avols[default-volid], ebm-cons(avols), ebm-vol-inv(abs(avols[default-volid])), range=(buf1, 0, buf2, 0, n3), range=(buf1, n3 + n2, buf2, n3 + n2, n4), default-volid ∈ avols, m1 + n2 ≤ LEB_SIZE, n3 + n2 ≤ # buf2, ⌊err1⌋ ⊦ ∃ buf. # buf = # buf2 ∧ range=(buf2, 0, buf, 0, n3) ∧ range=(buf2, n3 + n2, buf, n3 + n2, n0) ∧ ⟨buf2 := buf⟩ (buf1 = buf2)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 91:
# buf1 = # buf2, # buf2 = n0 + n3 + n2, avols[default-volid][m2] = mapped(buf0, n1), m2 < # avols[default-volid], ebm-cons(avols), ebm-vol-inv(abs(avols[default-volid])), range=(buf1, 0, buf2, 0, n3), range=(buf1, n3 + n2, buf2, n3 + n2, n0), default-volid ∈ avols, m1 + n2 ≤ LEB_SIZE, n3 + n2 ≤ # buf2, ⌊err1⌋ ⊦ ∃ buf. # buf = # buf2 ∧ range=(buf2, 0, buf, 0, n3) ∧ range=(buf2, n3 + n2, buf, n3 + n2, n0) ∧ ⟨buf2 := buf⟩ (buf1 = buf2)

Rule argument

Additional information

Used simplifier rules: eqs: ⊦ m = n + n0 ∧ m = n + n1 → n0 = n1; (forward) from specification nat-basic%c: ⊦ m + n = n + m; from specification nat-basic%a: ⊦ (m + n0) + n1 = m + n0 + n1; from specification nat-basic