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Proof step 14 from proof put-switch-primval-field-index (previous step)

st[r0 -- sks] = refval(r2), st[r -- sks1] = refval(r1), fits(r0, sks + i ' ', st), fits(r, sks1 + mkfs(class, ty, fieldvar) ' ', st) ⊦ sks = [], (st[r1 -- mkfs(class, ty, fieldvar) ', val][(st[r1 -- mkfs(class, ty, fieldvar) ', val][r0 -- sks]) .refval -- i ', val0]) = (st[r2 -- i ', val0][(st[r2 -- i ', val0][r -- sks1]) .refval -- mkfs(class, ty, fieldvar) ', val]), is_referencevalue(val), is_referencevalue(val0), is_reftype(ty), is_referencevalue(st[r0 -- (sks + i ' ')]), junkref(str, r, st), junkref(str, r0, st), ¬ mkfs(class, ty, fieldvar) ' ∈ sks ∧ sks ≠ []

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 13:
st[r0 -- sks] = refval(r2), st[r -- sks1] = refval(r1), fits(r0, sks + i ' ', st), fits(r, sks1 + mkfs(class, ty, fieldvar) ' ', st), mkfs(class, ty, fieldvar) ' ∈ sks ⊦ sks = [], (st[r1 -- mkfs(class, ty, fieldvar) ', val][(st[r1 -- mkfs(class, ty, fieldvar) ', val][r0 -- sks]) .refval -- i ', val0]) = (st[r2 -- i ', val0][(st[r2 -- i ', val0][r -- sks1]) .refval -- mkfs(class, ty, fieldvar) ', val]), is_referencevalue(val), is_referencevalue(val0), is_reftype(ty), is_referencevalue(st[r0 -- (sks + i ' ')]), junkref(str, r, st), junkref(str, r0, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]