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Theorem add1

aubifs_core_journal_add1#(ND1, RI, FI, RO, FO; ADR1, FS, LOG; CSYNCED, ERR) {if ri-cons(RI, FS) ∧ node-cons(ND1.key, ND1) then { choose adr1 with new(adr1 ', FS) ∧ ¬ dups(adr1 ') in {ADR1 := adr1; FS[ADR1] := ND1, LOG := LOG + ADR1, ERR := ESUCCESS} ifnone ERR := ENOSPC or {fail#(; ; ERR); ADR1 := ?}; CSYNCED := ?} else abort }