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Proof step 87 from proof validrefs-put-notin-03 (previous step)

st[r1 -- mkfs(class, ty1, fieldvar) '] = refval(r4), list2set(refs1) ∩ list2set(refs0) = ∅, is_valid_ref(str, r, st) ↔ is_valid_ref(str, r, st[r -- sk, val]), refs0 + r ' = r4 ' + refs2, mkfs(class, ty1, fieldvar) ' ∈ instfields(st[r1 -- _type] .type .class), validrefs(str, refs0 + r ' + r0 ' + refs1, ty1, st[r -- sk, val]), is_valid_ref(r1, st), is_obj(str, r1, st), st[r1 -- _type] .type ≤ ty, ∀ str0, r2, st0, sk0, val0, refs, r3, ty0. (is_valid_ref(str0, r2, st0) ↔ is_valid_ref(str0, r2, st0[r2 -- sk0, val0])) ∧ list2set(refs0) ∩ list2set(refs) = ∅ → val0 .refval = r3 ∨ r3 = st0[r2 -- sk0] .refval ∨ sk0 = _type ∨ sk0 = _length ∨ (validrefs(str0, refs0 + r2 ' + r3 ' + refs, ty0, st0[r2 -- sk0, val0]) ↔ validrefs(str0, refs0 + r2 ' + r3 ' + refs, ty0, st0)) ∨ r2 = r3 ∨ r3 ∈ refs0 ∨ r2 ∈ refs ∨ r2 ∈ refs0 ∨ dups(refs) ∨ r3 ∈ refs ⊦ sk = _length, sk = _type, r0 = st[r -- sk] .refval, val .refval = r0, r = r0, r1 = jvmref, r = r1, r0 = r1, r ∈ refs0, r ∈ refs1, r0 ∈ refs0, r1 ∈ refs0, dups(refs0), r1 ∈ refs1, r0 ∈ refs1, dups(refs1), validrefs(str, refs0 + r ' + r0 ' + refs1, ty1, st), ¬ r4 ∈ refs0 ∧ r4 ≠ r, r ≠ r4 ∧ ¬ r ∈ refs2

User applied rule all left

And closed the goal!

Rule argument

[EXRARG : pos: left 10, [extquanttermlist: (str, r, st, sk, val, refs1, r0, ty1) abort:F , discard:T , computed:T ]]

Additional information

[[CONCRETESIMPRULES : ([CSIMPNAMEDSEQ : list, references, a, ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1], [CSIMPNAMEDSEQ : set-union, references, int-c, ⊦ rset ∩ rset0 = rset0 ∩ rset])], [EXTRATERMS : (str, r, st, sk, val, refs1, r0, ty1)]]