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Proof step 25 from proof term-remove-nonend-blocks (previous step)

jvalid ↔ jvalid0, jvalid1 ↔ false, ax = ax0 + gstore2[n].ladrlist.to-adr(n), err = ESUCCESS, err = err0, gndx = gndx1, gndx0 = [], gndx2 = gndx0 + gstore2[n].gndlist, ¬ jvalid, log0 = ax, inv(gstore2), n ∈ gstore2, # gndx ≤ # log, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪log := log.butlast; gndx := gndx.butlast⟫ ((# gndx ≤ # log ∧ inv(gstore2)) ∧ (jvalid ⊃ 0;# gndx) < (jvalid0 ⊃ 0;# gndx1)), gndx = [], gndx.last.end, n ∈ ginval

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 26:
jvalid1 ↔ false, jvalid ↔ jvalid0, ax = ax0 + gstore2[n].ladrlist.to-adr(n), err = err0, err = ESUCCESS, gndx = gndx1, gndx0 = [], gndx2 = gndx0 + gstore2[n].gndlist, ¬ jvalid, log0 = ax, inv(gstore2), n ∈ gstore2, # gndx ≤ # log, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪gndx := gndx.butlast⟫ ((# gndx ≤ # log.butlast ∧ inv(gstore2)) ∧ (jvalid ⊃ 0;# gndx) < (jvalid0 ⊃ 0;# gndx1)), gndx = [], log = [], gndx.last.end, n ∈ ginval

Rule argument

Additional information

Used simplifier rules: ⊦ # [] = 0; (s)% ⊦ m ≤ 0 ↔ m = 0; (s)% ⊦ # gndx = 0 ↔ gndx = []; (s)