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Proof step 2 from proof inv-fsyncdir (previous step)

asynced0 ↔ asynced2, asynced ↔ asynced1, afs-cons(dirs, files) ⊦ ⟪fail_or_success#(; ; err)⟫ true

Heuristic unfold applied rule call right

And obtained the following new goals

Proof step 3:
asynced ↔ asynced1, asynced0 ↔ asynced2, afs-cons(dirs, files) ⊦ ⟪choose err0 with ⌊err0⌋ ∨ err0 = ESUCCESS in err := err0⟫ true

Rule argument

pos: right 1

Additional information

Used simplifier rules: fail_or_success#(; ; ERR) {choose ERR0 with ⌊ERR0⌋ ∨ ERR0 = ESUCCESS in ERR := ERR0};