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Proof step 13 from proof clear-corr (conclusion)

inv(buf) ⊦ 〈clear#(; buf)〉 (inv(buf) ∧ abs(buf, []))

Heuristic weak unfold applied rule call right

And obtained the following new goals

Proof step 12:
inv(buf) ⊦ 〈buf0 := buf .len:= 0〉 (inv(buf0) ∧ abs(buf0, []))

Rule argument

[fmapos-arg: pos: right 1]

Additional information

[[CONCRETESIMPRULES : ([CSIMPDECL : clear# (;buf) { buf := buf .len:= 0 }])]]