| ctrok(gs.fctr, gs.fwriters) ∧ writersOk(gs.bq, gs.pq, gs.fwriters) ∧ pendingOk(gs.bq, gs.pq) ∧ SFTrailing(gs.bq) ∧ readFOsOk(gs.rfo, gs.fwriters), ctrok(gs0.fctr, gs0.fwriters) ∧ writersOk(gs0.bq, gs0.pq, gs0.fwriters) ∧ pendingOk(gs0.bq, gs0.pq) ∧ SFTrailing(gs0.bq) ∧ readFOsOk(gs0.rfo, gs0.fwriters), ctrok(ags.ctr, ags.writers) ∧ writersOk(ags.p, ags.writers) ∧ pendingOk(ags.p), lsf(t) = ls, lsf0(t) = ls0, alsf(t) = als, alsf(t).t = t, lsf(t).t = t, ∀ t0. t0 ≠ t → lsf(t0).t = t0, ∀ t0. t0 ≠ t → alsf(t0).t = t0, pcf(t) = W3, pcf0(t) = W4, apcf(t) = apc, notMember(t, gs.freaders) ∧ oneMember(t, ls.loc, gs.fwriters) ∧ noPending(t, gs.bq, gs.pq) ∧ ¬ SF ∈ gs.bq(t) ∧ gs.rfo(t) = [] ∧ gs.bq(t) = [], notMember(t, gs0.freaders) ∧ oneMember(t, ls0.loc, gs0.fwriters) ∧ ¬ SF ∈ gs0.bq(t) ∧ gs0.rfo(t) = [] ∧ (gs0.bq(t) = [] ∨ gs0.bq(t) = W(ls0.loc, ls0.val) ') ∧ (gs0.bq(t) ≠ [] ∧ gs0.bq(t).head.W? → gs0.bq(t).head = W(ls0.loc, ls0.val)), FLITPSCLInv(ags, als, apc), ∀ t0. t0 ≠ t → FLITLInv(gs, lsf(t0), pcf(t0)) ∧ FLITPSCLInv(ags, alsf(t0), apcf(t0)) ∧ labs(gs, lsf(t0), pcf(t0), ags, alsf(t0), apcf(t0)), pre(gs, ls, W3, τ) ∧ gs0 = gstepf(gs, ls, W3, τ) ∧ ls0 = lstepf(gs, ls, W3, τ) ∧ W4 = pcstepf(gs, ls, W3, τ), ags.mem = gs.pmem ∧ ags.ctr = gs.fctr ∧ reorder(ags.p, gs.pq, gs.rfo) ∧ ags.writers = gs.fwriters, ls.t = als.t ∧ apc = W3 ∧ ls.loc = als.l ∧ ls.val = als.v ⊦ (ags.mem = gs0.pmem ∧ ags.ctr = gs0.fctr ∧ reorder(ags.p, gs0.pq, gs0.rfo) ∧ ags.writers = gs0.fwriters) ∧ ls0.t = als.t ∧ apc = (W(ls0.loc, ls0.val) ∈ gs0.bq(ls0.t) ⊃ W3;W4) ∧ ls0.loc = als.l ∧ ls0.val = als.v |