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Proof step 84 from proof push-corr (previous step)

buf1 = buf, buf .len < buf .size, inv(buf), 0 ≤ buf .len, 0 < buf .size, ar0 = buf1 .data ∧ a1 = a ∧ i0 = (buf .first + buf .len) % buf .size, 0 ≤ i0 ∧ i0 < n→i(# ar0) ⊦ 〈buf1 := buf1 .data:= ar0[i→n(i0), a1] .len:= ((buf1 .data:= ar0[i→n(i0), a1]) .len + 1)〉 (inv(buf1) ∧ abs(buf1, tolist(buf, i→n(buf .len)) + a '))

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 83:
buf1 = buf, buf .len < buf .size, inv(buf), 0 ≤ buf .len, 0 < buf .size, ar0 = buf1 .data ∧ a1 = a ∧ i0 = (buf .first + buf .len) % buf .size, 0 ≤ i0 ∧ i0 < n→i(# ar0), ¬ inv(buf1 .data:= ar0[i→n(i0), a1] .len:= ((buf1 .data:= ar0[i→n(i0), a1]) .len + 1)) ∨ ¬ abs(buf1 .data:= ar0[i→n(i0), a1] .len:= ((buf1 .data:= ar0[i→n(i0), a1]) .len + 1), tolist(buf, i→n(buf .len)) + a ') ⊦

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]