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Proof step 55 from proof validrefs-trans-01 (previous step)

fs = mkfs(class, ty3, fieldvar), is_obj(str, r, st), validrefs(str, (st[r -- fs '] .refval ' + refs0) .last ' + refs1, ty0, st), st[r -- _type] .type ≤ ty, fs ' ∈ instfields(st[r -- _type] .type .class), is_referencevalue(st[r -- fs ']), validrefs(str, st[r -- fs '] .refval ' + refs0, ty3, st), ∀ str0, ty1, st0, refs, ty2. validrefs(str0, st[r -- fs '] .refval ' + refs0, ty1, st0) ∧ validrefs(str0, (st[r -- fs '] .refval ' + refs0) .last ' + refs, ty2, st0) → validrefs(str0, (st[r -- fs '] .refval ' + refs0) + refs, ty1, st0) ⊦ r = jvmref, validrefs(str, r ' + (st[r -- fs '] .refval ' + refs0) + refs1, ty, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 54:
is_obj(str, r, st), validrefs(str, (st[r -- mkfs(class, ty3, fieldvar) '] .refval ' + refs0) .last ' + refs1, ty0, st), st[r -- _type] .type ≤ ty, mkfs(class, ty3, fieldvar) ' ∈ instfields(st[r -- _type] .type .class), is_referencevalue(st[r -- mkfs(class, ty3, fieldvar) ']), validrefs(str, st[r -- mkfs(class, ty3, fieldvar) '] .refval ' + refs0, ty3, st), ∀ str0, ty1, st0, refs, ty2. validrefs(str0, st[r -- mkfs(class, ty3, fieldvar) '] .refval ' + refs0, ty1, st0) ∧ validrefs(str0, (st[r -- mkfs(class, ty3, fieldvar) '] .refval ' + refs0) .last ' + refs, ty2, st0) → validrefs(str0, (st[r -- mkfs(class, ty3, fieldvar) '] .refval ' + refs0) + refs, ty1, st0) ⊦ r = jvmref, validrefs(str, r ' + (st[r -- mkfs(class, ty3, fieldvar) '] .refval ' + refs0) + refs1, ty, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]