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Proof step 9 from proof crash-neutral-read-gnd (previous step)

remove-refsize0(gstore1) = gstore1, remove-refsize0(istore1) = istore1, elems nx ∩ ginval1 = ∅, dom gstore1 ∪ elems nx = dom gstore2 ∪ ginval1, inv(gstore2 \ ginval1), inv(gstore1), inv(istore2), inv(istore1), @(m, m0, m1) ∈ gstore2, istore1 ⊑ istore2, pstate.journal? → nx ≠ [] ∧ pstate.lnum = nx.last ∧ pstate.lnum ∈ gstore2, pstate.index? → pstate.lnum ∈ istore2 ⊦ ⟨choose err0 with ⌊err0⌋ ∨ err0 = ESUCCESS in err := err0; if err = ESUCCESS then gnd := gstore2[@(m, m0, m1)] else gnd := ?⟩ true, dups(nx), m ∈ ginval1

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Proof step 10:
remove-refsize0(istore1) = istore1, remove-refsize0(gstore1) = gstore1, elems nx ∩ ginval1 = ∅, dom gstore1 ∪ elems nx = dom gstore2 ∪ ginval1, inv(istore1), inv(istore2), inv(gstore1), inv(gstore2 \ ginval1), @(m, m0, m1) ∈ gstore2, istore1 ⊑ istore2, pstate.index? → pstate.lnum ∈ istore2, pstate.journal? → nx ≠ [] ∧ pstate.lnum = nx.last ∧ pstate.lnum ∈ gstore2 ⊦ ∃ err0. (⌊err0⌋ ∨ err0 = ESUCCESS) ∧ ⟨err := err0; if err = ESUCCESS then gnd := gstore2[@(m, m0, m1)] else gnd := ?⟩ true, dups(nx), m ∈ ginval1

Proof step 9 from proof crash-neutral-read-gnd (previous step)

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Rule argument

Additional information