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Proof step 27 from proof nosharing-forward (previous step)

st[st[r -- fs '] .refval -- sks0] = refval(r0), st[r -- _type] .type = mkclasstype(class), st[st[r -- fs '] .refval -- sks] = refval(r0), fits(st[r -- fs '] .refval, sks, st), fits(st[r -- fs '] .refval, sks0, st), validrefnotnull(str, r, ty, st), fs ' ∈ instfields(class) ⊦ r ≠ jvmref ∧ is_referencevalue(st[r -- fs ']) ∧ (is_classtype(st[r -- _type] .type) → fs ' ∈ instfields(st[r -- _type] .type .class)) ∧ (is_arraytype(st[r -- _type] .type) → is_indexkey(fs ') ∧ 0 ≤ fs ' .index ∧ fs ' .index < st[r -- _length] .intval) ∧ fits(st[r -- fs '] .refval, sks0, st), sks0 = sks, sks0 = [], sks = [], r0 = jvmref, r = jvmref

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 26:
st[jvmref -- sks] = refval(r0), st[r -- _type] .type = mkclasstype(class), st[jvmref -- sks0] = refval(r0), fs ' ∈ instfields(class), validrefnotnull(str, r, ty, st), fits(jvmref, sks0, st), fits(jvmref, sks, st) ⊦ r = jvmref, r0 = jvmref, sks = [], sks0 = [], sks0 = sks, is_referencevalue(st[r -- fs '])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ¬ is_referencevalue(val) → val .refval = jvmref], [CSIMPSEQ : ⊦ ¬ is_arraytype(mkclasstype(class))], [CSIMPSEQ : ⊦ mkclasstype(class) .class = class], [CSIMPSEQ : ⊦ is_classtype(mkclasstype(class))], [CSIMPSEQ : ⊦ ¬ is_indexkey(fs ')])]]