Starting with polynomial:
P : t^2 - 1
Extension levels are: 2 16
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Trying to find an order 16 Kronrod extension for:
P1 : t^2 - 1
Solvable: 1
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Ending with final polynomial:
P : t^18 - 14180279/100079*t^16 + 782908260/100079*t^14 - 3098332380/14297*t^12 + 46267027950/14297*t^10 - 372704144670/14297*t^8 + 1535356843020/14297*t^6 - 2853059309100/14297*t^4 + 1812051180225/14297*t^2 - 164923097625/14297
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Computing nodes and weights
  current precision for roots: 53
  current precision for roots: 106
 current precision for weights: 53
Linear system for weights solvable: 1
  current precision for roots: 106
  current precision for roots: 212
 current precision for weights: 106
Linear system for weights solvable: 1
Sufficient bits for target precision reached
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The nodes are:
| (4.8591727227189761229 - 7.8930123944498570845e-142j)  +/-  (2.12e-59, 2.12e-59j)
| (6.9466486861971795318 + 1.0217926801744283238e-152j)  +/-  (4.39e-60, 4.39e-60j)
| (3.9964130345664707532 - 1.875588361305615003e-164j)  +/-  (1.34e-59, 1.34e-59j)
| (-6.9466486861971795318 - 2.6296428628517205154e-174j)  +/-  (4.43e-60, 4.43e-60j)
| (-4.8591727227189761229 - 4.7065079467256018835e-174j)  +/-  (2.14e-59, 2.14e-59j)
| (5.8126496410585388667 + 4.3309151879736951057e-176j)  +/-  (1.61e-59, 1.61e-59j)
| (-5.8126496410585388667 + 7.4180345847698151749e-181j)  +/-  (1.37e-59, 1.37e-59j)
| (-0.3293840425927038761 - 2.5887811050909887984e-183j)  +/-  (5.47e-63, 5.47e-63j)
| (-3.1910139554116398475 + 1.6153994095767770102e-180j)  +/-  (8.67e-60, 8.67e-60j)
| (3.1910139554116398475 - 3.8361029102711924921e-182j)  +/-  (6.68e-60, 6.68e-60j)
| (1 + 8.9173212781898406761e-185j)  +/-  (5.23e-62, 5.23e-62j)
| (-1.6978227622210584695 + 1.4708983551653345445e-185j)  +/-  (4.4e-61, 4.4e-61j)
| (2.4272386926068333692 + 3.7691770351111697703e-185j)  +/-  (2.02e-60, 2.02e-60j)
| (-1 - 3.2263433617403692745e-189j)  +/-  (4.65e-62, 4.65e-62j)
| (-3.9964130345664707532 + 1.2074940720809173354e-187j)  +/-  (1.46e-59, 1.46e-59j)
| (1.6978227622210584695 - 3.6296362819579154338e-190j)  +/-  (4.31e-61, 4.31e-61j)
| (0.3293840425927038761 + 7.6028386793728980441e-193j)  +/-  (5.47e-63, 5.47e-63j)
| (-2.4272386926068333692 - 2.3287974333214282297e-193j)  +/-  (2.3e-60, 2.3e-60j)
-------------------------------------------------
The weights are:
| (2.679488778610388937e-06 + 5.5193155479987110514e-147j)  +/-  (6.96e-20, 9.82e-49j)
| (1.72214445944481094e-11 - 1.8568195947884643439e-150j)  +/-  (7.52e-23, 1.06e-51j)
| (0.0001127480759804506996 - 1.8781655196811117892e-146j)  +/-  (8.9e-19, 1.26e-47j)
| (1.72214445944481094e-11 - 3.2831822017123227745e-151j)  +/-  (1.79e-24, 2.52e-53j)
| (2.679488778610388937e-06 - 2.1762179847484562286e-148j)  +/-  (1.8e-22, 2.54e-51j)
| (1.8727421979020835963e-08 + 1.5801726187120333236e-148j)  +/-  (1.63e-22, 2.31e-51j)
| (1.8727421979020835963e-08 + 1.4118095931280836109e-149j)  +/-  (1.66e-23, 2.35e-52j)
| (0.24975643230975624828 - 3.4672687296119027729e-145j)  +/-  (1.4e-18, 2.06e-47j)
| (0.0019206936621720588891 - 9.9252015968611573934e-147j)  +/-  (3.57e-21, 5.06e-50j)
| (0.0019206936621720588891 + 4.7896955157202493753e-146j)  +/-  (9.11e-21, 1.32e-49j)
| (0.16523096108051872753 - 3.3825367588178042275e-145j)  +/-  (5.5e-19, 8.06e-48j)
| (0.0673355827124614373 - 1.0623613245374503521e-145j)  +/-  (1.49e-19, 2.11e-48j)
| (0.015640883925689043301 - 1.1341973395981589306e-145j)  +/-  (1.82e-20, 2.7e-49j)
| (0.16523096108051872753 + 2.2279243522908470827e-145j)  +/-  (5.29e-19, 7.53e-48j)
| (0.0001127480759804506996 + 1.8298117622831742517e-147j)  +/-  (2.39e-22, 3.37e-51j)
| (0.0673355827124614373 + 2.203456907779322873e-145j)  +/-  (3.22e-20, 5.21e-49j)
| (0.24975643230975624828 + 3.9715143231979650673e-145j)  +/-  (1.05e-19, 1.81e-48j)
| (0.015640883925689043301 + 3.7855302834393343387e-146j)  +/-  (6.01e-21, 7.82e-50j)
