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Proof step 1227 from proof refine-truncate (previous step)

0 = fs0[ri[inodekey(m)]].nsubdirs, dirs = abs-dirs(fs0, ri), files = abs-files(fs0, ri), fs = fs0[adr1, truncnode(inodekey(m), min(n, m2))][adr2, inodenode(inodekey(m), md, false, fs0[ri[inodekey(m)]].nlink, 0, n)], inode = mkinode(m, md, false, fs0[ri[inodekey(m)]].nlink, 0, m2), m0 = fs0[ri[inodekey(m)]].nlink, ro = orphans(fs0, ri), adr1 ≠ adr2, orphans(fs0, ri).inodes?, fo.inodes?, afs-cons(abs-dirs(fs0, ri), abs-files(fs0, ri)), file-node-cons(fs0, ri), log-cons(log0, fs0), orphans-cons(fs0, ri, orphans(fs0, ri)), replay-cons-strong(fs0, ri, orphans(fs0, ri), fi, fo, log0), ri-inj(ri), ri-inj(fi), ubifs-cons(fs0, ri, orphans(fs0, ri), fi, fo, log0), inodekey(m) ∈ ri, ¬ fs0[ri[inodekey(m)]].directory, ¬ adr2 ∈ fs0, ¬ adr1 ∈ fs0, asynced → boolvar0, buf-opt0.some? → # buf-opt0.buf = VFS_PAGE_SIZE ⊦ [aubifs_core_index_store#(inodekey(m), adr2, fi, orphans(fs0, ri), fo, fs, (log0 + adr1 ') + adr2 ', boolvar4; ri); aubifs_core_index_truncate#(inodekey(m), min(n, m2), fi, ro, fo, fs, (log0 + adr1 ') + adr2 ', boolvar4; ri); boolvar1 := false; inode := mkinode (inode.ino, inodenode(inodekey(m), md, false, m0, 0, n).meta, inodenode(inodekey(m), md, false, m0, 0, n).directory, inodenode(inodekey(m), md, false, m0, 0, n).nlink, inodenode(inodekey(m), md, false, m0, 0, n).nsubdirs, inodenode(inodekey(m), md, false, m0, 0, n).size); buf-opt := buf-opt0; if boolvar1 then buf-opt := some(inodenode(inodekey(m), md, false, m0, 0, n).data)] ( ubifs-cons(fs, ri, ro, fi, fo, (log0 + adr1 ') + adr2 ') ∧ replay-cons-strong(fs, ri, ro, fi, fo, (log0 + adr1 ') + adr2 ') ∧ file-node-cons(fs, ri) ∧ orphans-cons(fs, ri, ro) ∧ ri-inj(ri) ∧ log-cons(log0, fs) ∧ adr1 ∈ fs ∧ node-cons(fs[adr1].key, fs[adr1]) ∧ adr2 ∈ fs ∧ node-cons(fs[adr2].key, fs[adr2]) → ⟨p_inode := mkinode(m, md, false, m0, 0, m2); afs_truncate#(n, m2 / VFS_PAGE_SIZE; buf-opt0, p_inode, boolvar2, err0, dirs, files, asynced)⟩ ( dirs = abs-dirs(fs, ri) ∧ files = abs-files(fs, ri) ∧ orphans(abs-dirs(fs, ri), abs-files(fs, ri)) = abs-keys(ro) ∧ (asynced → boolvar4) ∧ buf-opt = buf-opt0 ∧ inode = p_inode ∧ (boolvar1 ↔ boolvar2) ∧ ESUCCESS = err0)), m2 ≤ n ∧ m2 % VFS_PAGE_SIZE ≠ 0

Heuristic unfold applied rule call right

And obtained the following new goals

Proof step 1228:
boolvar ↔ boolvar4, 0 = fs0[ri[inodekey(m)]].nsubdirs, adr = adr2, dirs = abs-dirs(fs0, ri), files = abs-files(fs0, ri), fs = fs0[adr1, truncnode(inodekey(m), min(n, m2))][adr2, inodenode(inodekey(m), md, false, fs0[ri[inodekey(m)]].nlink, 0, n)], inode = mkinode(m, md, false, fs0[ri[inodekey(m)]].nlink, 0, m2), key = inodekey(m), log = (log0 + adr1 ') + adr2 ', m0 = fs0[ri[inodekey(m)]].nlink, ro = orphans(fs0, ri), ro0 = orphans(fs0, ri), fo.inodes?, orphans(fs0, ri).inodes?, afs-cons(abs-dirs(fs0, ri), abs-files(fs0, ri)), file-node-cons(fs0, ri), log-cons(log0, fs0), orphans-cons(fs0, ri, orphans(fs0, ri)), replay-cons-strong(fs0, ri, orphans(fs0, ri), fi, fo, log0), ri-inj(fi), ri-inj(ri), ubifs-cons(fs0, ri, orphans(fs0, ri), fi, fo, log0), inodekey(m) ∈ ri, buf-opt0.some? → # buf-opt0.buf = VFS_PAGE_SIZE, asynced → boolvar0 ⊦ [if ¬ adr ∈ ri ∧ adr ∈ fs ∧ key-cons(key, fs[adr]) then ri[key] := adr else abort; aubifs_core_index_truncate#(inodekey(m), min(n, m2), fi, ro0, fo, fs, (log0 + adr1 ') + adr2 ', boolvar4; ri); boolvar1 := false; inode := mkinode (inode.ino, inodenode(inodekey(m), md, false, m0, 0, n).meta, inodenode(inodekey(m), md, false, m0, 0, n).directory, inodenode(inodekey(m), md, false, m0, 0, n).nlink, inodenode(inodekey(m), md, false, m0, 0, n).nsubdirs, inodenode(inodekey(m), md, false, m0, 0, n).size); buf-opt := buf-opt0; if boolvar1 then buf-opt := some(inodenode(inodekey(m), md, false, m0, 0, n).data)] ( ubifs-cons(fs, ri, ro0, fi, fo, (log0 + adr1 ') + adr2 ') ∧ replay-cons-strong(fs, ri, ro0, fi, fo, (log0 + adr1 ') + adr2 ') ∧ file-node-cons(fs, ri) ∧ orphans-cons(fs, ri, ro0) ∧ ri-inj(ri) ∧ log-cons(log0, fs) ∧ adr1 ∈ fs ∧ node-cons(fs[adr1].key, fs[adr1]) ∧ adr2 ∈ fs ∧ node-cons(fs[adr2].key, fs[adr2]) → ⟨p_inode := mkinode(m, md, false, m0, 0, m2); afs_truncate#(n, m2 / VFS_PAGE_SIZE; buf-opt0, p_inode, boolvar2, err0, 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) ∧ ESUCCESS = err0)), adr1 = adr2, fs0[ri[inodekey(m)]].directory, adr2 ∈ fs0, adr1 ∈ fs0, m2 ≤ n ∧ m2 % VFS_PAGE_SIZE ≠ 0

Rule argument

pos: right 1

Additional information

Used simplifier rules: aubifs_core_index_store#(KEY, ADR, FI, RO, FO, FS, LOG, CSYNCED; RI) {if ¬ ADR ∈ RI ∧ ADR ∈ FS ∧ key-cons(KEY, FS[ADR]) then RI[KEY] := ADR else abort };