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Proof step 41 from proof validrefs-put-notin-02 (previous step)

st[r1 -- i '] = refval(r2), acc + r0 ' = r2 ' + refs, 0 < st[r1 -- _length] .intval, 0 ≤ i, validrefs(str, r2 ' + refs, st[r1 -- _type] .type .type, st), i < st[r1 -- _length] .intval, st[r1 -- _type] .type ≤ ty, okval(val, ty0), is_array(str, r1, st), ∀ str, r0, ty, st, val, ty0, class, fieldvar, r. validrefs(str, acc + r0 ', ty, st) ∧ okval(val, ty0) → mkfs(class, ty0, fieldvar) ' = _length ∨ mkfs(class, ty0, fieldvar) ' = _type ∨ validrefs(str, acc + r0 ', ty, st[r -- mkfs(class, ty0, fieldvar) ', val]) ∨ r ∈ acc ⊦ mkfs(class, ty0, fieldvar) ' = _length, mkfs(class, ty0, fieldvar) ' = _type, r = r1, r1 = jvmref, r ∈ acc, ¬ r2 ∈ acc ∧ r2 ≠ r0, r0 ≠ r2 ∧ ¬ r0 ∈ refs, ∃ i0. ¬ i0 < 0 ∧ ¬ st[r1 -- _length] .intval ≤ i0 ∧ is_referencevalue(st[r1 -- i0 ']) ∧ r2 = st[r1 -- i0 '] .refval ∧ validrefs(str, st[r1 -- i0 '] .refval ' + refs, st[r1 -- _type] .type .type, st[r -- mkfs(class, ty0, fieldvar) ', val])

User applied rule exists right

And obtained the following new goals

Rule argument

[EXRARG : pos: right 8, [extquanttermlist: (i)abort:F, discard:T, computed:T]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (i)]]