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Proof step 65 from proof inv-writepage (previous step)

# buf = VFS_PAGE_SIZE, fo.inodes?, ro.inodes?, file-node-cons(fs, ri), log-cons(log, fs), orphans-cons(fs, ri, ro), replay-cons-strong(fs, ri, ro, fi, fo, log), ri-inj(fi), ri-inj(ri), ubifs-cons(fs, ri, ro, fi, fo, log), inodekey(m) ∈ ri ⊦ ⟪choose err0 with ⌊err0⌋ in err := err0; adr := ?; boolvar := ?; if err = ESUCCESS then aubifs_core_index_store#(datakey(m, pageno), adr, fi, ro, fo, fs, log, boolvar; ri)⟫ (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)), fs[ri[inodekey(m)]].directory

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Rule argument

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