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Proof step 23 from proof nopathex-badclassfield (previous step)

¬ (¬ contains(str, st[r -- _type] .type, st[r0 -- _type] .type) ∧ r ≠ r0 ∧ r0 ≠ jvmref), st[r0 -- _type] .type = mkclasstype(class), path∃(str, r, r0, st), fs ' ∈ instfields(class) ⊦ r0 = jvmref, fs ' = _type, contains(str, st[r -- _type] .type, fs)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 22:
st[r0 -- _type] .type = mkclasstype(class), path∃(str, r, r0, st), fs ' ∈ instfields(class) ⊦ r0 = jvmref, fs ' = _type, contains(str, st[r -- _type] .type, fs), ¬ contains(str, st[r -- _type] .type, mkclasstype(class)) ∧ r ≠ r0

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]