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Proof step 30 from proof initialization (previous step)

⊦ ∃ err0. (⌊err0⌋ ∨ err0 = ESUCCESS) ∧ ⟨err := err0; if err = ESUCCESS then {avol := fill(mkavolume(# lpt0), unmapped); adr := adr1; m := m7; plog := []; lpt := lpt0; ns := ∅; bleb := nobuffer; rofs := false} else avol := ?, bleb := ?, rofs := ?, adr := ?, m := ?, plog := ?, lpt := ?, ns := ?⟩ ( avol = fill(mkavolume(# lpt0), unmapped) ∧ bleb = nobuffer ∧ adr = adr1 ∧ m = m7 ∧ plog = [] ∧ lpt = lpt0 ∧ ns = ∅ ∧ ¬ rofs ∧ ESUCCESS = err)

User applied rule exists right

And obtained the following new goals

Proof step 31:
⊦ (⌊ESUCCESS⌋ ∨ ESUCCESS = ESUCCESS) ∧ ⟨err := ESUCCESS; if err = ESUCCESS then {avol := fill(mkavolume(# lpt0), unmapped); adr := adr1; m := m7; plog := []; lpt := lpt0; ns := ∅; bleb := nobuffer; rofs := false} else avol := ?, bleb := ?, rofs := ?, adr := ?, m := ?, plog := ?, lpt := ?, ns := ?⟩ ( avol = fill(mkavolume(# lpt0), unmapped) ∧ bleb = nobuffer ∧ adr = adr1 ∧ m = m7 ∧ plog = [] ∧ lpt = lpt0 ∧ ns = ∅ ∧ ¬ rofs ∧ ESUCCESS = err)

Rule argument

pos: right 1 terms: ESUCCESS abort: F discard: T computed: T

Additional information

Used terms: ESUCCESS