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Proof step 16 from proof pathex-putbyte (previous step)

okbytearray(r1, st) ⊦ (∃ refs. refs ≠ [] ∧ refs .first = r ∧ refs .last = r0 ∧ validrefs(str, refs, (st[r1 -- i ', byteval(by)][r -- _type]) .type, st[r1 -- i ', byteval(by)])) ↔ path∃(str, r, r0, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 15:
okbytearray(r1, st) ⊦ (∃ refs. refs ≠ [] ∧ refs .first = r ∧ refs .last = r0 ∧ validrefs(str, refs, st[refs .first -- _type] .type, st[r1 -- i ', byteval(by)])) ↔ path∃(str, r, r0, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPNAMEDSEQ : javastore, , type-at, ⊦ (st[r -- i ', val] [r0 -- _type ] ) = st[r0 -- _type]])]]