Starting with polynomial:
P : 1024*t^11 - 2816*t^9 + 2816*t^7 - 1232*t^5 + 220*t^3 - 11*t
Extension levels are: 11 12
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Trying to find an order 12 Kronrod extension for:
P1 : 1024*t^11 - 2816*t^9 + 2816*t^7 - 1232*t^5 + 220*t^3 - 11*t
Solvable: 1
-------------------------------------------------
Ending with final polynomial:
P : 1024*t^23 - 6144*t^21 + 16064*t^19 - 24000*t^17 + 22576*t^15 - 13888*t^13 + 22477/4*t^11 - 5863/4*t^9 + 15015/64*t^7 - 671/32*t^5 + 891/1024*t^3 - 11/1024*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:
| (0.98982144188093273238 - 4.8618442355551581186e-283j)  +/-  (6.81e-120, 6.81e-120j)
| (0.95949297361449738989 - 5.2322861669021184594e-305j)  +/-  (4.43e-120, 4.43e-120j)
| (-0.95949297361449738989 - 3.6509252105905753726e-313j)  +/-  (4.33e-120, 4.33e-120j)
| (-0.14231483827328514044 - 4.7002192188694299043e-321j)  +/-  (6.33e-127, 6.33e-127j)
| (0.90963199535451837141 + 3.3437319443891549397e-316j)  +/-  (1.75e-120, 1.75e-120j)
| (0.75574957435425828377 - 9.670032305190280628e-322j)  +/-  (1.26e-121, 1.26e-121j)
| (-0.84125353283118116886 + 1.6569766740234530577e-318j)  +/-  (5.52e-121, 5.52e-121j)
| (-0.90963199535451837141 - 7.8421174866568013251e-318j)  +/-  (2.18e-120, 2.18e-120j)
| (-1 + 2.371203406554595559e-321j)  +/-  (4.06e-120, 4.06e-120j)
| (-0.65486073394528506406 - 1.8977598824252182426e-330j)  +/-  (1.85e-122, 1.85e-122j)
| (0.84125353283118116886 - 7.9006628030812280627e-333j)  +/-  (5.54e-121, 5.54e-121j)
| (-0.98982144188093273238 + 2.3122277310200303287e-336j)  +/-  (6.4e-120, 6.4e-120j)
| (-0.41541501300188642553 - 4.2979196766829367554e-341j)  +/-  (1.8e-124, 1.8e-124j)
| (-0.54064081745559758211 + 1.1493133886105765523e-341j)  +/-  (2.42e-123, 2.42e-123j)
| (-5.4886664241974453175e-342 + 3.836628580585610997e-342j)  +/-  (1.54e-340, 1.54e-340j)
| (0.65486073394528506406 - 5.1657293493851464645e-343j)  +/-  (1.78e-122, 1.78e-122j)
| (0.41541501300188642553 - 4.6268905103844016298e-353j)  +/-  (1.72e-124, 1.72e-124j)
| (1 + 3.0947773370805907759e-359j)  +/-  (4.15e-120, 4.15e-120j)
| (-0.75574957435425828377 - 1.2698388645129100102e-376j)  +/-  (1.27e-121, 1.27e-121j)
| (-0.28173255684142969771 + 1.2871504876701369484e-380j)  +/-  (1.21e-125, 1.21e-125j)
| (0.28173255684142969771 - 2.0197537423213229542e-379j)  +/-  (1.08e-125, 1.08e-125j)
| (0.54064081745559758211 - 4.1745335852854273234e-380j)  +/-  (2.13e-123, 2.13e-123j)
| (0.14231483827328514044 + 1.2679538160822469179e-383j)  +/-  (6.33e-127, 6.33e-127j)
-------------------------------------------------
The weights are:
| (0.045454545454545454545 - 5.400137952317914729e-283j)  +/-  (3.69e-37, 1.87e-94j)
| (0.045454545454545454545 - 7.2866495550167836668e-283j)  +/-  (2.32e-37, 1.18e-94j)
| (0.045454545454545454545 - 1.1336956113454639237e-284j)  +/-  (1.42e-38, 7.19e-96j)
| (0.045454545454545454545 - 1.951999274927029236e-284j)  +/-  (1.25e-38, 6.32e-96j)
| (0.045454545454545454545 + 2.7558853361728439243e-283j)  +/-  (8.61e-38, 4.36e-95j)
| (0.045454545454545454545 + 9.4412422190282110529e-284j)  +/-  (1.94e-38, 9.85e-96j)
| (0.045454545454545454545 - 1.2069026274181196844e-284j)  +/-  (1.77e-39, 8.96e-97j)
| (0.045454545454545454545 + 1.1634553154385539636e-284j)  +/-  (2.14e-39, 1.08e-96j)
| (0.022727272727272727273 - 5.553084190033206605e-285j)  +/-  (1.92e-40, 9.75e-98j)
| (0.045454545454545454545 - 1.3436816124485836698e-284j)  +/-  (2.12e-41, 1.08e-98j)
| (0.045454545454545454545 - 1.4874875820185158543e-283j)  +/-  (4.74e-42, 2.4e-99j)
| (0.045454545454545454545 + 1.1163272002777311959e-284j)  +/-  (2.74e-40, 1.39e-97j)
| (0.045454545454545454545 - 1.5726386760752662448e-284j)  +/-  (3.31e-42, 1.68e-99j)
| (0.045454545454545454545 + 1.4439619039920933934e-284j)  +/-  (6.64e-42, 3.37e-99j)
| (0.045454545454545454545 + 2.2326544005554623919e-284j)  +/-  (2.44e-43, 1.24e-100j)
| (0.045454545454545454545 - 6.5975774042255332708e-284j)  +/-  (7.41e-44, 3.76e-101j)
| (0.045454545454545454545 - 3.8473267130597622565e-284j)  +/-  (1.49e-44, 7.56e-102j)
| (0.022727272727272727273 + 1.0855806746536161524e-282j)  +/-  (1.51e-43, 7.65e-101j)
| (0.045454545454545454545 + 1.2660207905754208573e-284j)  +/-  (2.66e-43, 1.35e-100j)
| (0.045454545454545454545 + 1.7379751077815960784e-284j)  +/-  (4.3e-44, 2.18e-101j)
| (0.045454545454545454545 + 3.1209771042463535633e-284j)  +/-  (4.86e-45, 2.46e-102j)
| (0.045454545454545454545 + 4.9199121195552855503e-284j)  +/-  (4.89e-45, 2.47e-102j)
| (0.045454545454545454545 - 2.607565756505541083e-284j)  +/-  (4.53e-45, 2.29e-102j)
