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Proof step 4 from proof refine-get-volume-size (previous step)

# lpt = # avol - m4, m4 + # lpt0 = # avol, avol[0] = mapped(buf), avol[m1] = mapped(buf0), avol[m0] = mapped(buf1), sb = mksb(adr, m, m0, m1, m2, m3, m4), disk-layout(sb, # lpt0), ebm-vol-inv(subarray(avol, m4, # lpt)), ebm-vol-inv(avol), is-encoded(log, buf1), is-encoded(lpt, lebs(avol, m3, lptlebs(# lpt, LEB_SIZE))), is-encoded(sb, buf), is-encoded(lpt0, lebs(avol, m3, lptlebs(# lpt0, LEB_SIZE))), is-encoded-pad(orphans, m2, buf0), mapped-full?(avol, m3, lptlebs(# lpt0, LEB_SIZE)), logoff ≠ LEB_SIZE → # buf1 = logoff ⊦ ⟪persistence_io_get_volume_size#(sb, avol; ; n)⟫ ⟨apersistence_io_get_volume_size#(adr, m, log, subarray(avol, m4, # avol - m4), lpt, orphans; ; n0)⟩ (n = n0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 5:
# lpt = # avol - m4, m4 + # lpt0 = # avol, avol[m0] = mapped(buf1), avol[m1] = mapped(buf0), avol[0] = mapped(buf), disk-layout(mksb(adr, m, m0, m1, m2, m3, m4), # lpt0), ebm-vol-inv(avol), ebm-vol-inv(subarray(avol, m4, # lpt)), is-encoded(lpt0, lebs(avol, m3, lptlebs(# lpt0, LEB_SIZE))), is-encoded(mksb(adr, m, m0, m1, m2, m3, m4), buf), is-encoded(lpt, lebs(avol, m3, lptlebs(# lpt, LEB_SIZE))), is-encoded(log, buf1), is-encoded-pad(orphans, m2, buf0), mapped-full?(avol, m3, lptlebs(# lpt0, LEB_SIZE)), logoff ≠ LEB_SIZE → # buf1 = logoff ⊦ ⟪persistence_io_get_volume_size#(mksb(adr, m, m0, m1, m2, m3, m4), avol; ; n)⟫ ⟨apersistence_io_get_volume_size#(adr, m, log, subarray(avol, m4, # avol - m4), lpt, orphans; ; n0)⟩ (n = n0)

Proof step 4 from proof refine-get-volume-size (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information