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Proof step 67 from proof fsync-pages-err (previous step)

# buf = VFS_PAGE_SIZE, pcache[datakey(m, n)] = mkpentry(true, buf), err = err0, n * VFS_PAGE_SIZE < m2, datakey(m, n) ∈ pcache, m ∈ files, ⌊err0⌋ , err1 = ESUCCESS ∨ ⌊err1⌋ ⊦ [if err = ESUCCESS then afs_check_commit#(dirs, files; err; asynced1); if err = ESUCCESS then {asynced := false; pcache_set_status#(m, n, asynced; err, pcache)}; n := n + 1] (err = ESUCCESS ∨ ⌊err⌋ )

Heuristic symbolic execution applied rule if negative right

And obtained the following new goals

Proof step 68:
# buf = VFS_PAGE_SIZE, pcache[datakey(m, n)] = mkpentry(true, buf), err = err0, n * VFS_PAGE_SIZE < m2, m ∈ files, datakey(m, n) ∈ pcache, ⌊err0⌋ , err1 = ESUCCESS ∨ ⌊err1⌋ ⊦ [skip; if err = ESUCCESS then {asynced := false; pcache_set_status#(m, n, asynced; err, pcache)}; n := n + 1] (err = ESUCCESS ∨ ⌊err⌋ )

Rule argument

pos: right 1

Additional information

Used simplifier rules: ⊦ ⌊err⌋ → err ≠ ESUCCESS; (s)