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Proof step 33 from proof fits-put-statfield (previous step)

∀ r, st, sk, val, str. (fits(r, sks0, st[jvmref -- sk, val]) ↔ fits(r, sks0, st)) ∨ junkref(str, r, st) ⊦ r ≠ jvmref ∧ is_referencevalue(st[r -- sk0]) ∧ (is_classtype(st[r -- _type] .type) → sk0 ∈ instfields(st[r -- _type] .type .class)) ∧ (is_arraytype(st[r -- _type] .type) → is_indexkey(sk0) ∧ 0 ≤ sk0 .index ∧ sk0 .index < st[r -- _length] .intval) ∧ fits(st[r -- sk0] .refval, sks0, st[jvmref -- sk, val]) ↔ r ≠ jvmref ∧ is_referencevalue(st[r -- sk0]) ∧ (is_classtype(st[r -- _type] .type) → sk0 ∈ instfields(st[r -- _type] .type .class)) ∧ (is_arraytype(st[r -- _type] .type) → is_indexkey(sk0) ∧ 0 ≤ sk0 .index ∧ sk0 .index < st[r -- _length] .intval) ∧ fits(st[r -- sk0] .refval, sks0, st), junkref(str, r, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 32:
is_referencevalue(st[r -- sk0]), ∀ r, st, sk, val, str. (fits(r, sks0, st[jvmref -- sk, val]) ↔ fits(r, sks0, st)) ∨ junkref(str, r, st), is_classtype(st[r -- _type] .type) → sk0 ∈ instfields(st[r -- _type] .type .class), is_arraytype(st[r -- _type] .type) → is_indexkey(sk0) ∧ 0 ≤ sk0 .index ∧ sk0 .index < st[r -- _length] .intval ⊦ fits(st[r -- sk0] .refval, sks0, st[jvmref -- sk, val]) ↔ fits(st[r -- sk0] .refval, sks0, st), r = jvmref, junkref(str, r, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]