[Imprint][Data Privacy Statement][E-Mail]



View long theorem info. View the proof. Back to main index. View the specification. View theorem base summary, View theorem base listing, the used properties by spec, the dependency list, the symbol table,

Proof step 194 from proof eq-io-truncate (previous step)

asynced ↔ boolvar2, boolvar ↔ boolvar1, files1[m] = mkfile(m0, md0, m1, content0), files1[m, mkfile(n0, md, m1, content0 upto min(n0, m2))] = files0, buf-opt = buf-opt0, dirs = dirs1, dirs0 = dirs1, files = files1, inode = inode0, inode0 = mkinode(m, md, false, m1, 0, m2), n = n0, pageno1 = m2 / VFS_PAGE_SIZE, pre-truncate(inode, n, pageno1, buf-opt, dirs, files), m ∈ files1, buf-opt0.some? → # buf-opt0.buf = VFS_PAGE_SIZE ⊦ ⟨let pageno0 = 0, pageno = 0 in afs_truncate_internal#(n, pageno1; inode, buf-opt, pageno0, pageno, boolvar, err, dirs, files; asynced)⟩ ( buf-opt = buf-opt0 ∧ inode = (m ∈ dirs0 ⊃ mkinode(m, dirs0[m].meta, true, dirs0[m].nlink, dirs0[m].nsubdirs, dirs0[m].size) ;mkinode(m, files0[m].meta, false, files0[m].nlink, 0, files0[m].size) ) ∧ ¬ boolvar ∧ err = ESUCCESS ∧ dirs = dirs0 ∧ files = files0), VFS_PAGE_SIZE = 0, m2 ≤ n0 ∧ m2 % VFS_PAGE_SIZE ≠ 0 ∧ (m2 / VFS_PAGE_SIZE ∈ content0 ∨ buf-opt0.some?)

Heuristic symbolic execution applied rule let right

And obtained the following new goals

Rule argument

Additional information