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Proof step 42 from proof nosharing-forward (previous step)

st[r -- _type] .type = mkclasstype(class), fs ' ∈ instfields(class), validrefnotnull(str, r, ty, st), ∃ sks1, sks2. fits(st[r -- fs '] .refval, sks1, st) ∧ fits(st[r -- fs '] .refval, sks2, st) ∧ sks1 ≠ sks2 ∧ sks1 ≠ [] ∧ sks2 ≠ [] ∧ st[st[r -- fs '] .refval -- sks1] .refval ≠ jvmref ∧ st[st[r -- fs '] .refval -- sks1] = st[st[r -- fs '] .refval -- sks2] ⊦ r = jvmref, ∃ sks1, sks2. fits(r, sks1, st) ∧ fits(r, sks2, st) ∧ sks1 ≠ sks2 ∧ sks1 ≠ [] ∧ sks2 ≠ [] ∧ st[r -- sks1] .refval ≠ jvmref ∧ st[r -- sks1] = st[r -- sks2]

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 41:
st[r -- _type] .type = mkclasstype(class), st[st[r -- fs '] .refval -- sks0] = st[st[r -- fs '] .refval -- sks], fs ' ∈ instfields(class), validrefnotnull(str, r, ty, st), fits(st[r -- fs '] .refval, sks0, st), fits(st[r -- fs '] .refval, sks, st) ⊦ r = jvmref, st[st[r -- fs '] .refval -- sks] .refval = jvmref, sks = [], sks0 = [], sks0 = sks, ∃ sks1, sks2. fits(r, sks1, st) ∧ fits(r, sks2, st) ∧ sks1 ≠ sks2 ∧ sks1 ≠ [] ∧ sks2 ≠ [] ∧ st[r -- sks1] .refval ≠ jvmref ∧ st[r -- sks1] = st[r -- sks2]

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]