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Proof step 21 from proof fsync-inode-overwrite (previous step)

asynced ↔ asynced0, files0[m] = mkfile(m0, md0, m1, content), icache[m] = mkientry(true, inode0), asynced0, err = ESUCCESS, ino = m, inode = mkinode(m, md, false, m1, 0, m2), icache-cons(icache, dirs, files0), m ∈ icache, m ∈ files0 ⊦ [if ino ∈ icache then {inode := icache[ino].inode; asynced := true} else asynced := false; err := ESUCCESS; files := files0; if err = ESUCCESS ∧ asynced then afs_write_inode#(inode; err, dirs, files; asynced1); icache0 := icache; if err = ESUCCESS then {asynced := false; icache_set_status#(m, asynced; err, icache)}] (err = ESUCCESS → files[inode.ino] = (files0 ⊕ icache0)[inode.ino])

Heuristic symbolic execution applied rule if positive right

And obtained the following new goals

Proof step 22:
asynced ↔ asynced0, icache[m] = mkientry(true, inode0), files0[m] = mkfile(m0, md0, m1, content), asynced0, err = ESUCCESS, ino = m, inode = mkinode(m, md, false, m1, 0, m2), icache-cons(icache, dirs, files0), m ∈ files0, m ∈ icache ⊦ [inode := icache[ino].inode; asynced := true; err := ESUCCESS; files := files0; if err = ESUCCESS ∧ asynced then afs_write_inode#(inode; err, dirs, files; asynced1); icache0 := icache; if err = ESUCCESS then {asynced := false; icache_set_status#(m, asynced; err, icache)}] (err = ESUCCESS → files[inode.ino] = (files0 ⊕ icache0)[inode.ino])

Rule argument

pos: right 1

Proof step 21 from proof fsync-inode-overwrite (previous step)

Heuristic symbolic execution applied rule if positive right

And obtained the following new goals

Rule argument

Additional information