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Proof step 7 from proof crash-neutral-deallocate-gnd (previous step)

remove-refsize0(gstore0) = gstore0, remove-refsize0(istore1) = istore1, elems nx ∩ ginval = ∅, dom gstore0 ∪ elems nx = dom gstore ∪ ginval, inv(gstore \ ginval), inv(gstore0), inv(istore2), inv(istore1), n ∈ gstore, n ∈ gstore0, istore1 ⊑ istore2, pstate.journal? → nx ≠ [] ∧ pstate.lnum = nx.last ∧ pstate.lnum ∈ gstore, pstate.index? → pstate.lnum ∈ istore2 ⊦ ⟨choose err0 with ⌊err0⌋ ∨ err0 = ESUCCESS in err := err0; gstore1 := crash(gstore, gstore0, ginval, nx); ginval1 := ginval; if err = ESUCCESS then gstore := gstore -- n, ginval := ginval ++ n⟩ (ginval1 = ginval ∧ gstore1 = crash(gstore, gstore0, ginval, nx)), dups(nx), n ∈ nx

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Proof step 8:
remove-refsize0(istore1) = istore1, remove-refsize0(gstore0) = gstore0, elems nx ∩ ginval = ∅, dom gstore0 ∪ elems nx = dom gstore ∪ ginval, inv(istore1), inv(istore2), inv(gstore0), inv(gstore \ ginval), n ∈ gstore0, n ∈ gstore, istore1 ⊑ istore2, pstate.index? → pstate.lnum ∈ istore2, pstate.journal? → nx ≠ [] ∧ pstate.lnum = nx.last ∧ pstate.lnum ∈ gstore ⊦ ∃ err0. (⌊err0⌋ ∨ err0 = ESUCCESS) ∧ ⟨err := err0; gstore1 := crash(gstore, gstore0, ginval, nx); ginval1 := ginval; if err = ESUCCESS then gstore := gstore -- n, ginval := ginval ++ n⟩ (ginval1 = ginval ∧ gstore1 = crash(gstore, gstore0, ginval, nx)), dups(nx), n ∈ nx

Proof step 7 from proof crash-neutral-deallocate-gnd (previous step)

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Rule argument

Additional information