189   Vec         V, V0;  in TSBDF_PreSolve()  local
194   PetscCall(TSBDF_GetVecs(ts, NULL, &V, &V0));  in TSBDF_PreSolve()
197   PetscCall(VecZeroEntries(V0));  in TSBDF_PreSolve()
198   PetscCall(VecMAXPY(V0, n - 1, alpha + 1, vecs + 1));  in TSBDF_PreSolve()
200   PetscCall(TSBDF_RestoreVecs(ts, NULL, &V, &V0));  in TSBDF_PreSolve()
364   Vec       V, V0;  in SNESTSFormFunction_BDF()  local
368   PetscCall(TSBDF_GetVecs(ts, dm, &V, &V0));  in SNESTSFormFunction_BDF()
371     PetscCall(VecAYPX(V, shift, V0));  in SNESTSFormFunction_BDF()
373     PetscCall(VecWAXPY(V, shift, X, V0));  in SNESTSFormFunction_BDF()
381   PetscCall(TSBDF_RestoreVecs(ts, dm, &V, &V0));  in SNESTSFormFunction_BDF()
391   Vec       V, V0;  in SNESTSFormJacobian_BDF()  local
395   PetscCall(TSBDF_GetVecs(ts, dm, &V, &V0));  in SNESTSFormJacobian_BDF()
402   PetscCall(TSBDF_RestoreVecs(ts, dm, &V, &V0));  in SNESTSFormJacobian_BDF()