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Proof step 32 from proof nopathex-badarrayfield (previous step)

¬ ( ¬ contains(str, st[(r ' + refs0) .first -- _type] .type, st[(r ' + refs0) .last -- _type] .type) ∧ r ' + refs0 ≠ [] ∧ (r ' + refs0) .first ≠ (r ' + refs0) .last ∧ (r ' + refs0) .last ≠ jvmref), fs ' = _length, validrefs(str, r ' + refs0, st[r -- _type] .type, st), is_arraytype(st[refs0 .last -- _type] .type) ⊦ refs0 = [], refs0 .last = jvmref, contains(str, st[r -- _type] .type, fs)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 31:
fs ' = _length, validrefs(str, r ' + refs0, st[r -- _type] .type, st), is_arraytype(st[refs0 .last -- _type] .type) ⊦ refs0 = [], refs0 .last = jvmref, contains(str, st[r -- _type] .type, fs), ¬ contains(str, st[r -- _type] .type, st[refs0 .last -- _type] .type) ∧ r ≠ refs0 .last

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ r ' ≠ []], [CSIMPSEQ : ⊦ ¬ refs + refs0 ≠ [] ↔ refs = [] ∧ refs0 = []], [CSIMPSEQ : ⊦ refs ≠ [] → (r ' + refs) .last = refs .last], [CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1], [CSIMPSEQ : ⊦ (r ' + refs) .first = r])]]