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Proof step 122 from proof pathex-put-nopathex (previous step)

st[r -- mkfs(class, ty, fieldvar) '] = refval(r1), mkfs(class, ty, fieldvar) ' ∈ instfields(st[r -- _type] .type .class), validrefs(str, r1 ' + refs1, ty, st), is_obj(str, r, st), path∃(str, r1, r0, st) ∨ junkref(str, r1, st) ∨ path∃(str, r1, (r1 ' + refs1) .last, st[r0 -- sk, val]), ∀ val, r0, sk, st0, r2, str, refs. # refs < # (r1 + refs1) → ( validrefs(str, r2 ' + refs, st0[r2 -- _type] .type, st0) → sk = _type ∨ path∃(str, r2, r0, st0) ∨ junkref(str, r2, st0) ∨ path∃(str, r2, (r2 ' + refs) .last, st0[r0 -- sk, val])) ⊦ sk = _type, r = jvmref, r = r0, r = (r1 ' + refs1) .last, (is_reftype(ty) ∨ ty = abstract_type) ∧ r1 ≠ jvmref ∧ (¬ st[r1 -- _type] .type ≤ ty ∨ junkref(str, r1, st)), r1 ≠ jvmref ∧ st[r1 -- _type] .type ≤ ty ∧ path∃(str, r1, r0, st), r1 = jvmref ∧ r0 = jvmref, 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 ≤ mkfs(class, ty, fieldvar) .type ∧ path∃(str, st[r -- mkfs(class, ty, fieldvar) '] .refval, (r1 ' + refs1) .last, st[r0 -- sk, val]) ∨ st[r -- mkfs(class, ty, fieldvar) '] .refval = jvmref ∧ (r1 ' + refs1) .last = jvmref)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 121:
st[r -- mkfs(class, ty, fieldvar) '] = refval(r1), is_obj(str, r, st), validrefs(str, r1 ' + refs1, ty, st), mkfs(class, ty, fieldvar) ' ∈ instfields(st[r -- _type] .type .class), path∃(str, r1, r0, st) ∨ junkref(str, r1, st) ∨ path∃(str, r1, (r1 ' + refs1) .last, st[r0 -- sk, val]), ∀ val, r0, sk, st0, r2, str, refs. # refs < # (r1 + refs1) → ( validrefs(str, r2 ' + refs, st0[r2 -- _type] .type, st0) → sk = _type ∨ path∃(str, r2, r0, st0) ∨ junkref(str, r2, st0) ∨ path∃(str, r2, (r2 ' + refs) .last, st0[r0 -- sk, val])) ⊦ r = (r1 ' + refs1) .last, r = r0, r = jvmref, sk = _type, r1 = jvmref ∧ r0 = jvmref, r1 ≠ jvmref ∧ st[r1 -- _type] .type ≤ ty ∧ path∃(str, r1, r0, st), (is_reftype(ty) ∨ ty = abstract_type) ∧ r1 ≠ jvmref ∧ (¬ st[r1 -- _type] .type ≤ ty ∨ junkref(str, r1, st)), r1 ≠ jvmref ∧ st[r1 -- _type] .type ≤ ty ∧ path∃(str, r1, (r1 ' + refs1) .last, st[r0 -- sk, val]), r1 = jvmref ∧ (jvmref ' + refs1) .last = jvmref

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ refval(r) .refval = r], [CSIMPSEQ : ⊦ is_referencevalue(refval(r))], [CSIMPSEQ : ⊦ mkfs(class, ty, fieldvar) .type = ty])]]