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Proof step 285 from proof inv-unlink (previous step)

fs0[ri0[inodekey(m0)]] = inodenode(key1, md2, false, m3 + 1, m7, m8), fs0[ri0[dentrykey(m1, str)]] = dentrynode(key, m0), fs0[ri0[inodekey(m1)]] = inodenode(key0, md1, true, m4, m5, m + 1), replay-log(log0, fs0, fi ⊖ fo) = ri0 ⊖ ro, ro.inodes?, fo.inodes?, file-node-cons(fs0, ri0), log-cons(log0, fs0), orphans-cons(fs0, ri0, ro), replay-cons-strong(fs0, ri0, ro, fi, fo, log0), replay-safe(log0, fs0, fi ⊖ fo), ri-cons(ri0, fs0), ri-inj(ri0), ri-inj(fi), ubifs-cons(fs0, ri0, ro, fi, fo, log0), key2 ∈ ri0, ri0[inodekey(m1)] ∈ fs0, inodekey(m1) ∈ ri0, ri0[inodekey(m0)] ∈ fs0, inodekey(m0) ∈ ri0, ri0[dentrykey(m1, str)] ∈ fs0, dentrykey(m1, str) ∈ ri0, key2 ∈ ri0[inodekey(m1), adr1] -- dentrykey(m1, str), key2.data? → ¬ inodekey(key2.ino) ∈ ro, m4 ≠ 0 ∨ m1 = ROOT_INO ⊦ adr1 = adr2, adr1 = (ri0[inodekey(m1), adr1] -- dentrykey(m1, str))[key2], adr2 = (ri0[inodekey(m1), adr1] -- dentrykey(m1, str))[key2], key2 = dentrykey(m1, str), m0 = ROOT_INO, m0 = 0, m1 = 0, m3 = 0, key2.data?, (ri0[inodekey(m1), adr1] -- dentrykey(m1, str))[key2] ∈ fs0, adr2 ∈ fs0, adr1 ∈ fs0, inodekey(m0) ∈ ro, inodekey(m1) ∈ ro, (ri0[inodekey(m1), adr1] -- dentrykey(m1, str))[key2] ∈ log0, adr2 ∈ log0, adr1 ∈ log0, key2 ∈ ro

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 286:
fs0[ri0[inodekey(m1)]] = inodenode(key0, md1, true, m4, m5, m + 1), fs0[ri0[dentrykey(m1, str)]] = dentrynode(key, m0), fs0[ri0[inodekey(m0)]] = inodenode(key1, md2, false, m3 + 1, m7, m8), replay-log(log0, fs0, fi ⊖ fo) = ri0 ⊖ ro, fo.inodes?, ro.inodes?, file-node-cons(fs0, ri0), log-cons(log0, fs0), orphans-cons(fs0, ri0, ro), replay-cons-strong(fs0, ri0, ro, fi, fo, log0), replay-safe(log0, fs0, fi ⊖ fo), ri-cons(ri0, fs0), ri-inj(fi), ri-inj(ri0), ubifs-cons(fs0, ri0, ro, fi, fo, log0), dentrykey(m1, str) ∈ ri0, ri0[dentrykey(m1, str)] ∈ fs0, inodekey(m0) ∈ ri0, ri0[inodekey(m0)] ∈ fs0, inodekey(m1) ∈ ri0, ri0[inodekey(m1)] ∈ fs0, key2 ∈ ri0, m4 ≠ 0 ∨ m1 = ROOT_INO ⊦ adr1 = adr2, adr1 = (inodekey(m1) = key2 ⊃ adr1;ri0[key2]), adr2 = (inodekey(m1) = key2 ⊃ adr1;ri0[key2]), key2 = dentrykey(m1, str), m0 = 0, m0 = ROOT_INO, m1 = 0, m3 = 0, key2.data?, key2 ∈ ro, adr1 ∈ log0, adr2 ∈ log0, (inodekey(m1) = key2 ⊃ adr1;ri0[key2]) ∈ log0, inodekey(m1) ∈ ro, inodekey(m0) ∈ ro, adr1 ∈ fs0, adr2 ∈ fs0, (inodekey(m1) = key2 ⊃ adr1;ri0[key2]) ∈ fs0

Rule argument

Additional information

Used simplifier rules: at-ri: ⊦ ri[key0, adr][key1] = (key0 = key1 ⊃ adr;ri[key1]);%in-ri: ⊦ key0 ∈ ri[key1, adr] ↔ key0 = key1 ∨ key0 ∈ ri;% ⊦ key ∈ ri -- key0 ↔ key ≠ key0 ∧ key ∈ ri; (s)% ⊦ key ≠ key0 → (ri -- key0)[key] = ri[key]; (s)