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Proof step 3 from proof inv-sync (previous step)

ro.inodes?, fo.inodes?, log-cons(log, fs), ri-inj(ri), ri-inj(fi) ⊦ ⟪fail_or_success#(; ; err); boolvar := err = ESUCCESS⟫ true

Heuristic unfold applied rule call right

And obtained the following new goals

Proof step 4:
fo.inodes?, ro.inodes?, log-cons(log, fs), ri-inj(fi), ri-inj(ri) ⊦ ⟪choose err0 with ⌊err0⌋ ∨ err0 = ESUCCESS in err := err0; boolvar := err = ESUCCESS⟫ true

Rule argument

pos: right 1

Additional information

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