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Proof step 54 from proof put-switch-primval-field-field (previous step)

sks .last = fs ', fs = mkfs(class, ty, fieldvar), sks0 .last = mkfs(class0, ty0, fieldvar0) ', is_fskey(sks .last), fits(r, sks, st), fits(r0, sks0, st), st[r -- sks .butlast] ≠ st[r0 -- sks0 .butlast] ∨ sks .last ≠ mkfs(class0, ty0, fieldvar0) ' ⊦ (st[r -- sks, val][r0 -- sks0, val0]) = (st[r0 -- sks0, val0][r -- sks, val]), sks0 = [], sks = [], junkref(str, r0, st), junkref(str, r, st), is_reftype(ty0), is_reftype(ty), is_referencevalue(val0), is_referencevalue(val)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 53:
sks0 .last = mkfs(class0, ty0, fieldvar0) ', sks .last = mkfs(class, ty, fieldvar) ', fits(r0, sks0, st), fits(r, sks, st), st[r -- sks .butlast] ≠ st[r0 -- sks0 .butlast] ∨ class ≠ class0 ∨ ty ≠ ty0 ∨ fieldvar ≠ fieldvar0 ⊦ sks = [], sks0 = [], (st[r -- sks, val][r0 -- sks0, val0]) = (st[r0 -- sks0, val0][r -- sks, val]), is_referencevalue(val), is_referencevalue(val0), is_reftype(ty), is_reftype(ty0), junkref(str, r, st), junkref(str, r0, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPNAMEDSEQ : fieldspec, , inj-01, ⊦ mkfs(class1, ty, fieldvar) = mkfs (class2, ty0, fieldvar0) ↔ ¬ ¬ ( class1 = class2 ∧ ty = ty0 ∧ fieldvar = fieldvar0)], [CSIMPNAMEDSEQ : storekey, , inj-03, ⊦ fs ' = fs0 ' ↔ fs = fs0], [CSIMPNAMEDSEQ : storekey, , test-05, ⊦ is_fskey(fs ')])]]