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Proof step 23 from proof refine-add-log-leb (previous step)

# avol0 = # lpt0 + m5, avol0[m6] = mapped(buf1), avol0[m1] = mapped(buf0), avol0[0] = mapped(buf), err = err1, subarray(avol2, m5, # lpt0) = subarray(avol0, m5, # lpt0), disk-layout(mksb(adr, m, m6, m1, m3, m4, m5), # lpt0), ebm-vol-inv(subarray(avol0, m5, # lpt0)), ebm-vol-inv(avol0), ebm-vol-inv(avol2), is-encoded(mksb(adr, m, m6, m1, m3, m4, m5), buf), is-encoded(lpt0, lebs(avol0, m4, lptlebs(# lpt0, LEB_SIZE))), is-encoded(plog, buf1), is-encoded-pad(orphans, m3, buf0), mapped-full?(avol0, m4, lptlebs(# lpt0, LEB_SIZE)), m5 ≤ # avol0, logoff ≠ LEB_SIZE → # buf1 = logoff, err1 ≠ ESUCCESS → # avol0 = # avol2 ∧ avol2[0].mapped? ∧ is-encoded(mksb(adr, m, m6, m1, m3, m4, m5), avol2[0].data) ∧ avol2[m1].mapped? ∧ is-encoded-pad(orphans, m3, avol2[m1].data) ∧ avol2[m6].mapped? ∧ (logoff0 ≠ LEB_SIZE → # avol2[m6].data = logoff0) ∧ is-encoded(plog, avol2[m6].data) ∧ mapped-full?(avol2, m4, lptlebs(# lpt0, LEB_SIZE)) ∧ is-encoded(lpt0, lebs(avol2, m4, lptlebs(# lpt0, LEB_SIZE))), err1 = ESUCCESS → # avol0 = # avol2 ∧ avol2[0].mapped? ∧ is-encoded(mksb(adr, m, m6, m1, m3, m4, m5), avol2[0].data) ∧ avol2[m1].mapped? ∧ is-encoded-pad(orphans, m3, avol2[m1].data) ∧ avol2[m6].mapped? ∧ (logoff0 ≠ LEB_SIZE → # avol2[m6].data = logoff0) ∧ is-encoded(plog + m2 ', avol2[m6].data) ∧ mapped-full?(avol2, m4, lptlebs(# lpt0, LEB_SIZE)) ∧ is-encoded(lpt0, lebs(avol2, m4, lptlebs(# lpt0, LEB_SIZE))), err1 = ESUCCESS ∨ ⌊err1⌋ ⊦ ⟨skip⟩ ( # avol2 = m5 + (# avol2 - m5) ∧ subarray(avol0, m5, # lpt0) = subarray(avol2, m5, # avol2 - m5) ∧ is-encoded(plog, avol2[m6].data) ∧ is-encoded(lpt0, lebs(avol2, m4, lptlebs(# avol2 - m5, LEB_SIZE))) ∧ is-encoded-pad(orphans, m3, avol2[m1].data) ∧ err1 = err), err = ESUCCESS

Heuristic symbolic execution applied rule skip right

And obtained the following new goals

Proof step 24:
# avol0 = # lpt0 + m5, avol0[0] = mapped(buf), avol0[m1] = mapped(buf0), avol0[m6] = mapped(buf1), err = err1, subarray(avol2, m5, # lpt0) = subarray(avol0, m5, # lpt0), disk-layout(mksb(adr, m, m6, m1, m3, m4, m5), # lpt0), ebm-vol-inv(avol2), ebm-vol-inv(avol0), ebm-vol-inv(subarray(avol0, m5, # lpt0)), is-encoded(plog, buf1), is-encoded(lpt0, lebs(avol0, m4, lptlebs(# lpt0, LEB_SIZE))), is-encoded(mksb(adr, m, m6, m1, m3, m4, m5), buf), is-encoded-pad(orphans, m3, buf0), mapped-full?(avol0, m4, lptlebs(# lpt0, LEB_SIZE)), m5 ≤ # avol0, err1 = ESUCCESS → # avol0 = # avol2 ∧ avol2[0].mapped? ∧ is-encoded(mksb(adr, m, m6, m1, m3, m4, m5), avol2[0].data) ∧ avol2[m1].mapped? ∧ is-encoded-pad(orphans, m3, avol2[m1].data) ∧ avol2[m6].mapped? ∧ (logoff0 ≠ LEB_SIZE → # avol2[m6].data = logoff0) ∧ is-encoded(plog + m2 ', avol2[m6].data) ∧ mapped-full?(avol2, m4, lptlebs(# lpt0, LEB_SIZE)) ∧ is-encoded(lpt0, lebs(avol2, m4, lptlebs(# lpt0, LEB_SIZE))), err1 ≠ ESUCCESS → # avol0 = # avol2 ∧ avol2[0].mapped? ∧ is-encoded(mksb(adr, m, m6, m1, m3, m4, m5), avol2[0].data) ∧ avol2[m1].mapped? ∧ is-encoded-pad(orphans, m3, avol2[m1].data) ∧ avol2[m6].mapped? ∧ (logoff0 ≠ LEB_SIZE → # avol2[m6].data = logoff0) ∧ is-encoded(plog, avol2[m6].data) ∧ mapped-full?(avol2, m4, lptlebs(# lpt0, LEB_SIZE)) ∧ is-encoded(lpt0, lebs(avol2, m4, lptlebs(# lpt0, LEB_SIZE))), logoff ≠ LEB_SIZE → # buf1 = logoff, err1 = ESUCCESS ∨ ⌊err1⌋ ⊦ err = ESUCCESS, # avol2 = m5 + (# avol2 - m5) ∧ subarray(avol0, m5, # lpt0) = subarray(avol2, m5, # avol2 - m5) ∧ is-encoded(plog, avol2[m6].data) ∧ is-encoded(lpt0, lebs(avol2, m4, lptlebs(# avol2 - m5, LEB_SIZE))) ∧ is-encoded-pad(orphans, m3, avol2[m1].data) ∧ err1 = err

Proof step 23 from proof refine-add-log-leb (previous step)

Heuristic symbolic execution applied rule skip right

And obtained the following new goals

Rule argument

Additional information