b=1.414 B=2 m=20 ALLM: status optimal  beta=0.988973  (beta1=0.984772, g22(0)/2=1.9840, g12hat(0)=1.9798)  value 1-M/beta with M from window
   check: min g11 -1.52e-09  min g12 -4.88e-08  min g22 -3.08e-09 (x in (0,30))
   check: min eigenvalue of Hhat on fine xi grid -1.97e-06 (at xi=0.6725)
