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Proof step 30 from proof fsync-err (previous step)

files1[m] = mkfile(m0, md0, m1, content), m ∈ files1, m2 ∈ files ⊦ [fail_or_success#(; ; err); choose bv with true in asynced := bv] (err = ESUCCESS ∨ ⌊err⌋ )

Heuristic unfold applied rule call right

And obtained the following new goals

Proof step 31:
files1[m] = mkfile(m0, md0, m1, content), m2 ∈ files, m ∈ files1 ⊦ [choose err0 with ⌊err0⌋ ∨ err0 = ESUCCESS in err := err0; choose bv with true in asynced := bv] (err = ESUCCESS ∨ ⌊err⌋ )

Rule argument

pos: right 1

Additional information

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