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Proof step 447 from proof refine-truncate (previous step)

boolvar ↔ datakey(mkinode(m, md, false, fs[ri[inodekey(m)]].nlink, 0, m2).ino, m2 / VFS_PAGE_SIZE) ∈ ri, 0 = fs[ri[inodekey(m)]].nsubdirs, boolvar, dirs = abs-dirs(fs, ri), err = ESUCCESS, err = err0, files = abs-files(fs, ri), inode = mkinode(m, md, false, fs[ri[inodekey(m)]].nlink, 0, m2), key1 = inodekey(mkinode(m, md, false, fs[ri[inodekey(m)]].nlink, 0, m2).ino), m0 = fs[ri[inodekey(m)]].nlink, nd = fs[ri[datakey(mkinode(m, md, false, fs[ri[inodekey(m)]].nlink, 0, m2).ino, m2 / VFS_PAGE_SIZE)]], nd0 = inodenode (inodekey(mkinode(m, md, false, fs[ri[inodekey(m)]].nlink, 0, m2).ino), mkinode(m, md, false, fs[ri[inodekey(m)]].nlink, 0, m2).meta, mkinode(m, md, false, fs[ri[inodekey(m)]].nlink, 0, m2).directory, fs[ri[inodekey(m)]].nlink, mkinode(m, md, false, fs[ri[inodekey(m)]].nlink, 0, m2).nsubdirs, n), ro = orphans(fs, ri), ro0 = orphans(fs, ri), fs[ri[inodekey(m)]].inode?, orphans(fs, ri).inodes?, fo.inodes?, afs-cons(abs-dirs(fs, ri), abs-files(fs, ri)), file-node-cons(fs, ri), log-cons(log, fs), orphans-cons(fs, ri, orphans(fs, ri)), replay-cons-strong(fs, ri, orphans(fs, ri), fi, fo, log), ri-inj(ri), ri-inj(fi), ubifs-cons(fs, ri, orphans(fs, ri), fi, fo, log), inodekey(m) ∈ ri, ri[inodekey(m)] ∈ fs, datakey(mkinode(m, md, false, fs[ri[inodekey(m)]].nlink, 0, m2).ino, m2 / VFS_PAGE_SIZE) ∈ ri, ri[datakey(mkinode(m, md, false, fs[ri[inodekey(m)]].nlink, 0, m2).ino, m2 / VFS_PAGE_SIZE)] ∈ fs, m2 ≤ n, asynced → boolvar4, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ [if boolvar then {nd.data := fill(nd.data, zero, inode.size % VFS_PAGE_SIZE, VFS_PAGE_SIZE - inode.size % VFS_PAGE_SIZE); aubifs_core_journal_add3#(truncnode(key1, min(n, inode.size)), nd0, nd, ri, fi, ro, fo; adr1, adr0, adr, fs, log; boolvar4, err); if err = ESUCCESS then aubifs_core_index_store#(datakey(inode.ino, m2 / VFS_PAGE_SIZE), adr, fi, ro, fo, fs, log, boolvar4; ri)} else aubifs_core_journal_add2#(truncnode(key1, min(n, inode.size)), nd0, ri, fi, ro, fo; adr1, adr0, fs, log; boolvar4, err); buf-opt := buf-opt0; boolvar1 := boolvar2; if err = ESUCCESS then {aubifs_core_index_store#(inodekey(inode.ino), adr0, fi, ro, fo, fs, log, boolvar4; ri); aubifs_core_index_truncate#(key1, min(n, inode.size), fi, ro, fo, fs, log, boolvar4; ri); boolvar1 := boolvar; inode := mkinode(inode.ino, nd0.meta, nd0.directory, nd0.nlink, nd0.nsubdirs, nd0.size); if boolvar1 then buf-opt := some(nd.data)}] ( ubifs-cons(fs, ri, ro0, fi, fo, log) ∧ replay-cons-strong(fs, ri, ro0, fi, fo, log) ∧ file-node-cons(fs, ri) ∧ orphans-cons(fs, ri, ro0) ∧ ri-inj(ri) ∧ log-cons(log, fs) → ⟨p_inode := mkinode(m, md, false, m0, 0, m2); afs_truncate#(n, m2 / VFS_PAGE_SIZE; buf-opt0, p_inode, boolvar2, err1, dirs, files, asynced)⟩ ( dirs = abs-dirs(fs, ri) ∧ files = abs-files(fs, ri) ∧ orphans(abs-dirs(fs, ri), abs-files(fs, ri)) = abs-keys(ro0) ∧ (asynced → boolvar4) ∧ buf-opt = buf-opt0 ∧ inode = p_inode ∧ (boolvar1 ↔ boolvar2) ∧ err = err1)), m2 % VFS_PAGE_SIZE = 0, VFS_PAGE_SIZE = 0, fs[ri[inodekey(m)]].directory, buf-opt0.some?

Heuristic symbolic execution applied rule if positive right

And obtained the following new goals

Rule argument

pos: right 1

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