[Imprint][Data Privacy Statement][E-Mail]

View long theorem info. View the proof. Back to main index. View the specification. View theorem base summary, View theorem base listing, the used properties by spec, the dependency list, the symbol table,

Proof step 4 from proof crash-neutral-read (previous step)

buf0 = buf, m = m1, m0 = m2, m2 < # avols[v], ebm-cons(avols), ebm-cons(avols0), v ∈ avols, m1 + n ≤ LEB_SIZE, n0 + n ≤ # buf, avols ⊆ avols0 ⊦ ⟨if v ∈ avols ∧ m0 < # avols[v] ∧ m + n ≤ LEB_SIZE ∧ n0 + n ≤ # buf0 then {fail_or_success#(; ; err); if err = ESUCCESS then if ¬ avols[v][m0].mapped? then buf0 := fill(buf0, empty, n0, n) else buf0 := copy(avols[v][m0].data, m, buf0, n0, n) else choose buf with # buf = # buf0 ∧ range=(buf, 0, buf0, 0, n0) ∧ range=(buf, n0 + n, buf0, n0 + n, # buf0 - n0 + n) in buf0 := buf} else abort⟩ true

Heuristic symbolic execution applied rule if positive right

And obtained the following new goals

Proof step 5:
buf0 = buf, m = m1, m0 = m2, m2 < # avols[v], ebm-cons(avols0), ebm-cons(avols), v ∈ avols, n0 + n ≤ # buf, m1 + n ≤ LEB_SIZE, avols ⊆ avols0 ⊦ ⟨fail_or_success#(; ; err); if err = ESUCCESS then if ¬ avols[v][m0].mapped? then buf0 := fill(buf0, empty, n0, n) else buf0 := copy(avols[v][m0].data, m, buf0, n0, n) else choose buf with # buf = # buf0 ∧ range=(buf, 0, buf0, 0, n0) ∧ range=(buf, n0 + n, buf0, n0 + n, # buf0 - n0 + n) in buf0 := buf⟩ true

Rule argument

pos: right 1

Proof step 4 from proof crash-neutral-read (previous step)

Heuristic symbolic execution applied rule if positive right

And obtained the following new goals

Rule argument

Additional information