[Imprint][Data Privacy Statement][E-Mail]

View long theorem info. View the proof. Back to main index. View the specification. View theorem base summary, View theorem base listing, the used properties by spec, the dependency list, the symbol table,

Proof step 12 from proof head-corr (previous step)

buf .len = 1 + n→i(# x), a ' + x = tolist(buf, i→n(buf .len)), inv(buf) ⊦ 〈a1 := a0, ar := buf .data, i := buf .first〉〈if 0 ≤ i ∧ i < n→i(# ar) then a1 := ar[i→n(i)] else abort〉 a = a1

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 11:
buf .len = 1 + n→i(# x), a ' + x = tolist(buf, i→n(buf .len)), inv(buf), a2 = a0 ∧ ar0 = buf .data ∧ i0 = buf .first ⊦ 〈if 0 ≤ i0 ∧ i0 < n→i(# ar0) then a2 := ar0[i→n(i0)] else abort〉 a = a2

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]