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Proof step 25 from proof unchanged-fits (previous step)

¬ ( unchanged(str, r, st, st0) ∧ path∃(str, r, r, st) ∧ r ≠ jvmref ∧ (is_classtype(st[r -- _type] .type) → _length ∈ instfields(st[r -- _type] .type .class)) ∧ (is_arraytype(st[r -- _type] .type) → _length = _length ∨ is_indexkey(_length) ∧ 0 ≤ _length .index ∧ _length .index < st[r -- _length] .intval)), st[r -- sk] = st0[r -- sk], st0[r -- _type] = st[r -- _type], unchanged(str, st0[r -- sk] .refval, st, st0), unchanged(str, r, st, st0), is_referencevalue(st0[r -- sk]), fits(st0[r -- sk] .refval, sks0, st), fits(st0[r -- sk] .refval, sks0, st0), is_arraytype(st[r -- _type] .type), is_indexkey(sk), sk .index < st[r -- _length] .intval, st0[r -- _length] .intval ≤ sk .index, 0 ≤ sk .index, 0 < st[r -- _length] .intval, st0[r -- _length] .intval < st[r -- _length] .intval ⊦ st0[r -- _length] = st[r -- _length], r = jvmref, junkref(str, st0[r -- sk] .refval, st), junkref(str, r, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPNAMEDSEQ : javatype, , diff-01, ⊦ is_arraytype(ty) → ¬ is_classtype(ty)], [CSIMPNAMEDSEQ : addfuns, , is_valid_ref-array-01, ⊦ is_arraytype (st[r -- _type] .type) ∧ r ≠ jvmref → ( is_valid_ref(str, r, st) ↔ is_array(str, r, st))], [CSIMPNAMEDSEQ : cyclic, , pathex-one, ⊦ path∃(str, r, r, st) ↔ r = jvmref ∨ r ≠ jvmref ∧ is_valid_ref(str, r, st)])]]