Starting with polynomial:
P : t^2 - 1
Extension levels are: 2 23
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Trying to find an order 23 Kronrod extension for:
P1 : t^2 - 1
Solvable: 1
-------------------------------------------------
Ending with final polynomial:
P : t^25 - 360669162859/1301530587*t^23 + 41856212426677/1301530587*t^21 - 126959252505635/61977647*t^19 + 4890505818430320/61977647*t^17 - 118415297709057030/61977647*t^15 + 1816654650244163730/61977647*t^13 - 17394463437889527990/61977647*t^11 + 100005149957633466975/61977647*t^9 - 321693455119105716075/61977647*t^7 + 511069251856122884925/61977647*t^5 - 315074770874657969175/61977647*t^3 + 41385282742755601650/61977647*t
-------------------------------------------------
Computing nodes and weights
  current precision for roots: 53
  current precision for roots: 106
 current precision for weights: 53
Linear system for weights solvable: 0
  current precision for roots: 106
  current precision for roots: 212
 current precision for weights: 106
Linear system for weights solvable: 1
  current precision for roots: 212
  current precision for roots: 424
 current precision for weights: 212
Linear system for weights solvable: 1
Sufficient bits for target precision reached
-------------------------------------------------
The nodes are:
| (4.271474366257411664 + 3.9650609206516261161e-265j)  +/-  (6.22e-122, 6.22e-122j)
| (8.513372352399023206 + 5.7864941595104654302e-275j)  +/-  (1.05e-122, 1.05e-122j)
| (-8.513372352399023206 - 3.3651264968617287273e-280j)  +/-  (8.29e-123, 8.29e-123j)
| (-6.548913040994402206 - 2.3144071061861897029e-282j)  +/-  (1.06e-121, 1.06e-121j)
| (7.4442587753732617844 + 3.3975693480987072088e-293j)  +/-  (4.62e-122, 4.62e-122j)
| (-4.271474366257411664 + 7.1341498492252455234e-311j)  +/-  (5.99e-122, 5.99e-122j)
| (4.9875423644475348411 + 1.1621598391222330105e-326j)  +/-  (1.11e-121, 1.11e-121j)
| (2.2613633403890156184 - 2.7201258331629914051e-336j)  +/-  (1.25e-123, 1.25e-123j)
| (-2.9139674523362778037 + 2.8936733855794230602e-339j)  +/-  (6.95e-123, 6.95e-123j)
| (2.9139674523362778037 + 6.4480920731048324855e-341j)  +/-  (7.48e-123, 7.48e-123j)
| (1.6225063375848528604 - 1.1564010884173347278e-348j)  +/-  (1.75e-124, 1.75e-124j)
| (5.7410027293984750189 - 3.6194043822427877758e-355j)  +/-  (1.3e-121, 1.3e-121j)
| (-1 - 3.7482499710125750038e-370j)  +/-  (1.94e-125, 1.94e-125j)
| (-0.42027185151357491539 + 1.7926075597791306271e-372j)  +/-  (2.38e-126, 2.38e-126j)
| (-3.5825247770828131477 + 1.1380230768659735748e-366j)  +/-  (2.55e-122, 2.55e-122j)
| (0.42027185151357491539 + 3.490380030969002171e-372j)  +/-  (1.6e-126, 1.6e-126j)
| (1 + 4.5937632033750649495e-371j)  +/-  (2.24e-125, 2.24e-125j)
| (3.5825247770828131477 - 6.1174149236474149863e-368j)  +/-  (2.23e-122, 2.23e-122j)
| (-2.2613633403890156184 - 6.7468769256585513421e-375j)  +/-  (1.34e-123, 1.34e-123j)
| (-5.7410027293984750189 + 2.3034842078008994384e-372j)  +/-  (1.37e-121, 1.37e-121j)
| (7.0138812047049337038e-383 - 2.7548099337828667266e-385j)  +/-  (1.75e-381, 1.75e-381j)
| (6.548913040994402206 - 4.1503360314111708702e-378j)  +/-  (1.11e-121, 1.11e-121j)
| (-7.4442587753732617844 + 6.7685661307309791719e-386j)  +/-  (4.97e-122, 4.97e-122j)
| (-4.9875423644475348411 + 2.7738102407171661309e-386j)  +/-  (1.2e-121, 1.2e-121j)
| (-1.6225063375848528604 + 1.06036168402894546e-392j)  +/-  (1.75e-124, 1.75e-124j)
-------------------------------------------------
The weights are:
| (3.0532757581767252872e-05 - 2.8674549949777503988e-269j)  +/-  (1.09e-41, 5.48e-102j)
| (8.9496846117801581607e-17 - 2.4567598377226310843e-276j)  +/-  (4.3e-49, 2.17e-109j)
| (8.9496846117801581607e-17 + 8.1513097789914705798e-277j)  +/-  (5.49e-50, 2.77e-110j)
| (1.6373335585027563394e-10 + 1.6926441818583431674e-273j)  +/-  (2e-47, 1.01e-107j)
| (3.5400173773226541878e-13 + 2.3619294974110606325e-274j)  +/-  (3.5e-48, 1.76e-108j)
| (3.0532757581767252872e-05 - 1.4171247853381036999e-270j)  +/-  (2.84e-44, 1.43e-104j)
| (1.1591523338637522127e-06 - 2.8233439168888709597e-270j)  +/-  (9.9e-45, 4.99e-105j)
| (0.019972457937922473507 + 2.8889613822506163496e-268j)  +/-  (1e-39, 5.05e-100j)
| (0.0037723889895225182936 - 2.7364723147499241734e-269j)  +/-  (1.33e-42, 6.69e-103j)
| (0.0037723889895225182936 - 1.4484465901563957593e-268j)  +/-  (1.43e-41, 7.23e-102j)
| (0.067590343662453664468 - 5.5694064713716161968e-268j)  +/-  (8.98e-39, 4.53e-99j)
| (2.1594737360478347156e-08 + 1.6321549257279593824e-271j)  +/-  (1.64e-46, 8.28e-107j)
| (0.1476430230405913664 + 6.5148411299536559697e-268j)  +/-  (6.36e-38, 3.2e-98j)
| (0.19250672757044330973 - 1.6610350777695315344e-267j)  +/-  (8.7e-38, 4.38e-98j)
| (0.00044163931078622307695 + 6.9815754506225049567e-270j)  +/-  (1.06e-44, 5.33e-105j)
| (0.19250672757044330973 - 2.0235640722280996616e-267j)  +/-  (1.77e-38, 8.94e-99j)
| (0.1476430230405913664 + 1.0497657683339448426e-267j)  +/-  (8.9e-39, 4.48e-99j)
| (0.00044163931078622307695 + 7.9589694906484760497e-269j)  +/-  (2.68e-43, 1.35e-103j)
| (0.019972457937922473507 + 8.8891434144489163182e-269j)  +/-  (5.39e-43, 2.72e-103j)
| (2.1594737360478347156e-08 - 2.3955090568329657342e-272j)  +/-  (8.55e-49, 4.31e-109j)
| (0.13608341163908001191 + 2.5310133055695468081e-267j)  +/-  (2.9e-41, 1.46e-101j)
| (1.6373335585027563394e-10 - 8.0419578333775304064e-273j)  +/-  (6.23e-49, 3.14e-109j)
| (3.5400173773226541878e-13 - 6.3964354549762178396e-275j)  +/-  (2.23e-51, 1.12e-111j)
| (1.1591523338637522127e-06 + 2.1834999175068445687e-271j)  +/-  (6.74e-48, 3.4e-108j)
| (0.067590343662453664468 - 2.5030926334264916228e-268j)  +/-  (1.19e-44, 5.92e-105j)
