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Proof step 13 from proof junkref-rec-keep-case (previous step)

fs = mkfs(class, ty, fieldvar), r ≠ jvmref ∧ ¬ is_valid_ref(str, r, st) ∨ r ≠ jvmref ∧ is_obj(str, r, st) ∧ fs ' ∈ instfields(st[r -- _type] .type .class) ∧ is_referencevalue(st[r -- fs ']) ∧ st[r -- fs '] .refval ≠ jvmref ∧ (¬ st[st[r -- fs '] .refval -- _type] .type ≤ ty ∨ junkref(str, st[r -- fs '] .refval, st)) ∨ r ≠ jvmref ∧ is_array(str, r, st) ∧ 0 ≤ i ∧ i < st[r -- _length] .intval ∧ is_referencevalue(st[r -- i ']) ∧ st[r -- i '] .refval ≠ jvmref ∧ (¬ st[st[r -- i '] .refval -- _type] .type ≤ st[r -- _type] .type .type ∨ junkref(str, st[r -- i '] .refval, st)) ⊦ junkref(str, r, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 12:
r ≠ jvmref ∧ ¬ is_valid_ref(str, r, st) ∨ r ≠ jvmref ∧ is_obj(str, r, st) ∧ mkfs(class, ty, fieldvar) ' ∈ instfields(st[r -- _type] .type .class) ∧ is_referencevalue(st[r -- mkfs(class, ty, fieldvar) ']) ∧ st[r -- mkfs(class, ty, fieldvar) '] .refval ≠ jvmref ∧ (¬ st[st[r -- mkfs(class, ty, fieldvar) '] .refval -- _type] .type ≤ ty ∨ junkref(str, st[r -- mkfs(class, ty, fieldvar) '] .refval, st)) ∨ r ≠ jvmref ∧ is_array(str, r, st) ∧ 0 ≤ i ∧ i < st[r -- _length] .intval ∧ is_referencevalue(st[r -- i ']) ∧ st[r -- i '] .refval ≠ jvmref ∧ (¬ st[st[r -- i '] .refval -- _type] .type ≤ st[r -- _type] .type .type ∨ junkref(str, st[r -- i '] .refval, st)) ⊦ junkref(str, r, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]