[A+] (R) verified for L in [43.749, 753.9849999999944]; first failure (753.9849999999944, 753.9869999999944)   (4 s)
   [D+] T = 1.7321e+14: fails at (2072.984999999994, 2073.484999999994)
   [D+] T = 1.31609e+15: closes
   [D+] T = 4.77452e+14: fails at (2670.484999999994, 2670.984999999994)
   [D+] T = 7.92699e+14: fails at (3030.984999999994, 3031.484999999994)
   [D+] T = 1.0214e+15: closes
   [D+] T = 8.99814e+14: fails at (3128.484999999994, 3128.984999999994)
   [D+] T = 9.58683e+14: closes
   [D+] T = 9.28783e+14: fails at (3153.484999999994, 3153.984999999994)
   [D+] T = 9.43615e+14: closes
   [D+] T = 9.36169e+14: closes
   [D+] T = 9.32469e+14: fails at (3156.484999999994, 3156.984999999994)
   [D+] T = 9.34317e+14: closes
   [D+] T = 9.33392e+14: fails at (3156.984999999994, 3157.484999999994)
   [D+] T = 9.33855e+14: closes
   [D+] T = 9.33623e+14: closes
   [D+] T = 9.33508e+14: fails at (3156.984999999994, 3157.484999999994)
   [D+] T = 9.33566e+14: closes
   [D+] T = 9.33537e+14: fails at (3157.484999999994, 3157.984999999994)
[D+] RH to height 9.33566e+14 suffices; method fails at 9.33537e+14   (129 s)
   [B+] theta = 0.937000: closes
   [B+] theta = 0.968000: closes
   [B+] theta = 0.983500: fails at (753.9849999999944, 754.4849999999944)
   [B+] theta = 0.975750: fails at (753.9849999999944, 754.4849999999944)
   [B+] theta = 0.971875: fails at (753.9849999999944, 754.4849999999944)
   [B+] theta = 0.969938: fails at (753.9849999999944, 754.4849999999944)
   [B+] theta = 0.968969: closes
   [B+] theta = 0.969453: fails at (753.9849999999944, 754.4849999999944)
   [B+] theta = 0.969211: fails at (753.9849999999944, 754.4849999999944)
   [B+] theta = 0.969090: fails at (753.9849999999944, 754.4849999999944)
   [B+] theta = 0.969029: fails at (753.9849999999944, 754.4849999999944)
   [B+] theta = 0.968999: fails at (753.9849999999944, 754.4849999999944)
   [B+] theta = 0.968984: fails at (753.9849999999944, 754.4849999999944)
   [B+] theta = 0.968976: closes
   [B+] theta = 0.968980: fails at (753.9849999999944, 754.4849999999944)
   [B+] theta = 0.968978: closes
[B+] zero-free half-plane Re s > 0.968978 suffices; fails at 0.968980   (190 s)