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Proof step 43 from proof put-switch-primval-index-field (previous step)

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

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 42:
st[r -- sks1] = refval(r1), st[r0 -- sks] = refval(r2), fits(r, sks1 + i ' ', st), fits(r0, sks + mkfs(class, ty, fieldvar) ' ', st) ⊦ (st[r1 -- i ', val][(st[r1 -- i ', val][r0 -- sks]) .refval -- mkfs(class, ty, fieldvar) ', val0]) = (st[r2 -- mkfs(class, ty, fieldvar) ', val0][(st[r2 -- mkfs(class, ty, fieldvar) ', val0][r -- sks1]) .refval -- i ', val]), junkref(str, r0, st), junkref(str, r, st), is_reftype(ty), is_referencevalue(st[r -- (sks1 + i ' ')]), is_referencevalue(val0), is_referencevalue(val)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPNAMEDSEQ : storekey, , disj, ⊦ fs ' ≠ i '])]]