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Proof step 27 from proof inv-unlink (previous step)

m3 + 1 = fs0[ri[inodekey(fs0[ri[dentrykey(m1, str)]].ino)]].nlink, adr4 = adr5, err = ESUCCESS, fs = fs0[adr1, nd1][adr2, nd0][adr3, nd], log = ((log0 + adr1) + adr2) + adr3, m = fs0[ri[dentrykey(m1, str)]].ino, nd = inodenode(inodekey(m), md, false, m3, fs0[ri[inodekey(m)]].nsubdirs, m2), nd0 = dentrynode(dentrykey(m1, str), 0), nd1 = inodenode(inodekey(m1), md0, true, fs0[ri[inodekey(m1)]].nlink, fs0[ri[inodekey(m1)]].nsubdirs, fs0[ri[inodekey(m1)]].size - 1), fs0[ri[inodekey(m1)]].directory, fs0[ri[inodekey(m1)]].inode?, fs0[ri[inodekey(m)]].inode?, fo.inodes?, ro.inodes?, file-node-cons(fs0, ri), log-cons(log0, fs0), new(adr1 ' + (adr2 ' + adr3), fs0), node-cons(nd1.key, nd1), node-cons(nd0.key, nd0), node-cons(nd.key, nd), orphans-cons(fs0, ri, ro), replay-cons-strong(fs0, ri, ro, fi, fo, log0), ri-cons(ri, fs0), ri-inj(fi), ri-inj(ri), ubifs-cons(fs0, ri, ro, fi, fo, log0), inodekey(m1) ∈ ri, ri[inodekey(m1)] ∈ fs0, inodekey(fs0[ri[dentrykey(m1, str)]].ino) ∈ ri, dentrykey(m1, str) ∈ ri, ri[inodekey(m)] ∈ fs0, inodekey(m) ∈ ri, 1 ≤ fs0[ri[inodekey(m1)]].size, m3 = 0 → links(fs0[ri[dentrykey(m1, str)]].ino, fs0, ri) = ∅ ++ dentrykey(m1, str), fs0[ri[inodekey(m1)]].nlink ≠ 0 ∨ m1 = ROOT_INO ⊦ ⟪boolvar := ?; if err = ESUCCESS then {aubifs_core_index_store#(inodekey(m1), adr1, fi, ro, fo, fs, log, boolvar; ri); aubifs_core_index_remove#(dentrykey(m1, str), fi, ro, fo, fs, log, boolvar; ri); aubifs_core_index_store#(inodekey(m), adr3, fi, ro, fo, fs, log, boolvar; ri); if m3 = 0 then aubifs_core_orphans_insert#(inodekey(m), ri, fi, fo, fs, log, boolvar; ro); dent := negdentry(str); p_inode := mkinode(m1, nd1.meta, nd1.directory, nd1.nlink, nd1.nsubdirs, nd1.size); c_inode0 := mkinode(m, nd.meta, nd.directory, nd.nlink, nd.nsubdirs, nd.size)}⟫ (ubifs-cons(fs, ri, ro, fi, fo, log) ∧ replay-cons-strong(fs, ri, ro, fi, fo, log) ∧ file-node-cons(fs, ri) ∧ orphans-cons(fs, ri, ro)), fs0[ri[dentrykey(m1, str)]].ino = ROOT_INO, fs0[ri[inodekey(m1)]].size = 0, fs0[ri[inodekey(fs0[ri[dentrykey(m1, str)]].ino)]].directory, dups(adr1 ' + adr2 ' + adr3 '), inodekey(m1) ∈ ro, inodekey(fs0[ri[dentrykey(m1, str)]].ino) ∈ ro

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

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