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Proof step 26 from proof junkref-put-refval-01 (previous step)

¬ ( ¬ junkrefs(str, r ' + refs0, st[r -- _type] .type, st) ∧ ¬ junkref(str, r1, st) ∧ mkarraytype(st[r1 -- _type] .type) ≤ st[r0 -- _type] .type ∧ r0 ≠ jvmref ∧ r1 ≠ jvmref), is_arraytype(st[r0 -- _type] .type), mkarraytype(ty) ≤ st[r0 -- _type] .type, validref(str, r1, ty, st), junkrefs(str, r ' + refs0, st[r -- _type] .type, st[r0 -- i ', refval(r1)]), r1 = jvmref → is_reftype(ty) ⊦ r0 = jvmref, junkref(str, r, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
⊦ ¬ junkref(str, r, st) → (junkrefs(str, r ' + refs0, st[r -- _type] .type, st) ↔ false)
Proof step 4:
⊦ junkref(str, r, st) → ¬ validref(str, r, ty, st)
Proof step 25:
is_arraytype(st[r0 -- _type] .type), mkarraytype(ty) ≤ st[r0 -- _type] .type, validref(str, r1, ty, st), junkrefs(str, r ' + refs0, st[r -- _type] .type, st[r0 -- i ', refval(r1)]), r1 = jvmref → is_reftype(ty) ⊦ r0 = jvmref, junkref(str, r, st), junkref(str, r1, st), r1 ≠ jvmref ∧ mkarraytype(st[r1 -- _type] .type) ≤ st[r0 -- _type] .type

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1])]]