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Proof step 49 from proof inv-write (previous step)

m6 + # lpt = # avol, avol[m6 + m8] = mapped(buf0), avol[0] = mapped(buf1), avol[m3] = mapped(buf2), avol[m2] = mapped(buf3), m = m7, m0 = m8, sb = mksb(adr, m1, m2, m3, m4, m5, m6), m8 < # lpt, disk-layout(mksb(adr, m1, m2, m3, m4, m5, m6), # lpt), ebm-vol-inv(avol), is-aligned(m7, EB_PAGE_SIZE), is-aligned(n, EB_PAGE_SIZE), is-encoded(log, buf3), is-encoded(lpt, lebs(avol, m5, lptlebs(# lpt, LEB_SIZE))), is-encoded(mksb(adr, m1, m2, m3, m4, m5, m6), buf1), is-encoded-pad(orphans, m4, buf2), mapped-full?(avol, m5, lptlebs(# lpt, LEB_SIZE)), # buf0 ≤ m7, m7 + n ≤ LEB_SIZE, n0 + n ≤ # buf, sb.main + m0 < # avol → sb.main + m0 < # avol ∧ (avol[sb.main + m0].mapped? → avol[sb.main + m0].mapped? ∧ sb.main + m0 < # avol), logoff ≠ LEB_SIZE → # buf3 = logoff ⊦ ⟪abort⟫ ( (∃ lpt0, log, orphans. disk-layout(mksb(adr, m1, m2, m3, m4, m5, m6), # lpt0) ∧ m6 + # lpt0 = # avol ∧ avol[0].mapped? ∧ is-encoded(mksb(adr, m1, m2, m3, m4, m5, m6), avol[0].data) ∧ avol[m3].mapped? ∧ is-encoded-pad(orphans, m4, avol[m3].data) ∧ avol[m2].mapped? ∧ (logoff ≠ LEB_SIZE → # avol[m2].data = logoff) ∧ is-encoded(log, avol[m2].data) ∧ mapped-full?(avol, m5, lptlebs(# lpt0, LEB_SIZE)) ∧ is-encoded(lpt0, lebs(avol, m5, lptlebs(# lpt0, LEB_SIZE)))) ∧ ebm-vol-inv(avol)), sb.main + m0 < # avol ∧ avol[sb.main + m0].mapped? ∧ # avol[sb.main + m0].data ≤ m ∧ is-aligned(m, EB_PAGE_SIZE) ∧ is-aligned(n, EB_PAGE_SIZE) ∧ m + n ≤ LEB_SIZE ∧ n0 + n ≤ # buf

Heuristic symbolic execution applied rule abort right

And obtained the following new goals

Rule argument

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