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Proof step 24 from proof unchanged-rec-generic (previous step)

unchanged(str, r, st, st0) ∧ 0 ≤ sk .index ∧ sk .index < st[r -- _length] .intval ∧ is_array(str, r, st) ∧ is_referencevalue(st[r -- sk .index ']) ∧ r ≠ jvmref ∧ ( st[r -- sk .index '] .refval ≠ jvmref → st[st[r -- sk .index '] .refval -- _type] .type ≤ st[r -- _type] .type .type ∧ is_valid_ref(str, st[r -- sk .index '] .refval, st)) → unchanged(str, st[r -- sk .index '] .refval, st, st0), sk .fs = mkfs(class, ty, fieldvar), st[r -- sk] = refval(r0), unchanged(str, r, st, st0), is_arraytype(st[r -- _type] .type), is_indexkey(sk), sk .index < st[r -- _length] .intval, 0 ≤ sk .index, 0 < st[r -- _length] .intval, is_array(str, r, st) ⊦ r = jvmref, junkref(str, r, st), unchanged(str, r0, st, st0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 23:
sk .fs = mkfs(class, ty, fieldvar), st[r -- sk] = refval(r0), unchanged(str, r, st, st0), is_arraytype(st[r -- _type] .type), is_indexkey(sk), sk .index < st[r -- _length] .intval, 0 ≤ sk .index, 0 < st[r -- _length] .intval, is_array(str, r, st), is_referencevalue(st[r -- sk .index ']) ∧ ( st[r -- sk .index '] .refval ≠ jvmref → st[st[r -- sk .index '] .refval -- _type] .type ≤ st[r -- _type] .type .type ∧ is_valid_ref(str, st[r -- sk .index '] .refval, st)) → unchanged(str, st[r -- sk .index '] .refval, st, st0) ⊦ r = jvmref, junkref(str, r, st), unchanged(str, r0, st, st0)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPNAMEDSEQ : int-abs, , lels-03, ⊦ i < j → (¬ ¬ j ≤ i ↔ false)], [CSIMPNAMEDSEQ : int-abs, , lels, ⊦ ¬ i < j ↔ j ≤ i], [CSIMPNAMEDSEQ : int-abs, , lels-04, ⊦ i ≤ j → (¬ ¬ j < i ↔ false)], [CSIMPNAMEDSEQ : int-abs, , lels-01, ⊦ ¬ i ≤ j ↔ j < i])]]