Starting with polynomial:
P : 263012370465/524288*t^22 - 1412926920405/524288*t^20 + 3273855059475/524288*t^18 - 4281195077775/524288*t^16 + 1735619626125/262144*t^14 - 902522205585/262144*t^12 + 300840735195/262144*t^10 - 62386327575/262144*t^8 + 15058768725/524288*t^6 - 929553625/524288*t^4 + 22309287/524288*t^2 - 88179/524288
Extension levels are: 22 24
-------------------------------------------------
Trying to find an order 24 Kronrod extension for:
P1 : 263012370465/524288*t^22 - 1412926920405/524288*t^20 + 3273855059475/524288*t^18 - 4281195077775/524288*t^16 + 1735619626125/262144*t^14 - 902522205585/262144*t^12 + 300840735195/262144*t^10 - 62386327575/262144*t^8 + 15058768725/524288*t^6 - 929553625/524288*t^4 + 22309287/524288*t^2 - 88179/524288
Solvable: 1
-------------------------------------------------
Ending with final polynomial:
P : 263012370465/524288*t^46 - 138998979507375/24641536*t^44 + 1679770618028676225/56749457408*t^42 - 4365110740150210577175/45342816468992*t^40 + 1203080522311943812262954475/5534498835388694528*t^38 - 1035105923615686180703614119015/2861335897895955070976*t^36 + 18461282591265728300651914190486775/40159605151546532126261248*t^34 - 2691505827100655224647056414603431064775/5902217009517642280064489357312*t^32 + 7866502598762643999448641208597021524812289075/21972770531923773921402940947156434944*t^30 - 3936089954196539890162810313907925572906106676525/17556243655007095363200949816777991520256*t^28 + 49974248656540169903280925657867240969316634279108177/444752320512294746835969661708436859182645248*t^26 - 63084721079496823527459680137362496828225382688301316325/1400525057293216157786468464719867669566149885952*t^24 + 794104189546236332108427281105541380083069521789556238901750375/55215780213713312734052513050283271905102624524201099264*t^22 - 2601766946606519211205410137914776424042800633646590842324595/717088054723549516026656013640042492274060058755858432*t^20 + 26963537266585705435540465505513563136726142190058155656825/37741476564397342948771369138949604856529476776624128*t^18 - 239557657210350097114250528178790273158769761890923516065/2220086856729255467574786419938212050384086869213184*t^16 + 54183507781286793586326076587875288065397231352071460075/4440173713458510935149572839876424100768173738426368*t^14 - 4437216052843227681116329390069716744948150504549628875/4440173713458510935149572839876424100768173738426368*t^12 + 250953408671510546841899249856833960480510864609001915/4440173713458510935149572839876424100768173738426368*t^10 - 63977092191783767909410134890606336660372349528118725/31081215994209576546047009879134968705377216168984576*t^8 + 191842055985012128734882058673429746097272007548685/4440173713458510935149572839876424100768173738426368*t^6 - 20928688273828058390685516547643901537803054774175/48841910848043620286645301238640665108449911122690048*t^4 + 62109409948412967599903303660800968097867944375/48841910848043620286645301238640665108449911122690048*t^2 - 444375538973829130373661850923600104053599/48841910848043620286645301238640665108449911122690048
-------------------------------------------------
Computing nodes and weights
  current precision for roots: 53
  current precision for roots: 106
  current precision for roots: 212
 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: 0
  current precision for roots: 212
  current precision for roots: 424
 current precision for weights: 212
Linear system for weights solvable: 1
  current precision for roots: 424
  current precision for roots: 848
 current precision for weights: 424
Linear system for weights solvable: 1
Sufficient bits for target precision reached
-------------------------------------------------
The nodes are:
| (0.99905156467873088415 - 9.4300071877361028327e-930j)  +/-  (4.7e-240, 4.7e-240j)
| (-0.98464374446473086908 + 6.9481783447392394549e-938j)  +/-  (1.38e-239, 1.38e-239j)
| (-0.95078620158894464521 - 3.3694774175370287433e-962j)  +/-  (9.49e-240, 9.49e-240j)
| (0.98464374446473086908 - 2.3722101242529880862e-968j)  +/-  (1.4e-239, 1.4e-239j)
| (0.86581257772030013654 + 1.5274419312058044711e-974j)  +/-  (8.42e-241, 8.42e-241j)
| (0.95078620158894464521 - 1.2348503962972795229e-973j)  +/-  (8.36e-240, 8.36e-240j)
| (-0.99429458548239929207 - 7.8622676003473085975e-984j)  +/-  (1.22e-239, 1.22e-239j)
| (-0.86581257772030013654 + 1.5282908982161931414e-1003j)  +/-  (8.56e-241, 8.56e-241j)
| (0.92695677218717400052 + 1.1311056374631438951e-1006j)  +/-  (4.77e-240, 4.77e-240j)
| (0.99429458548239929207 + 3.1093968698591834573e-1007j)  +/-  (1.24e-239, 1.24e-239j)
| (0.89859912908272990619 + 3.7701988887820709297e-1011j)  +/-  (2.24e-240, 2.24e-240j)
| (-0.99905156467873088415 - 2.964864937326950995e-1009j)  +/-  (4.97e-240, 4.97e-240j)
| (-0.92695677218717400052 - 3.0467294474267617123e-1022j)  +/-  (4.59e-240, 4.59e-240j)
| (-0.787816805979208162 - 2.2686239625943063771e-1032j)  +/-  (6.56e-242, 6.56e-242j)
| (0.97006049783542872712 - 1.6909196808473958256e-1032j)  +/-  (1.31e-239, 1.31e-239j)
| (0.787816805979208162 + 1.8866685445291854782e-1036j)  +/-  (6.76e-242, 6.76e-242j)
| (0.82881374149829671237 - 2.2031197329008991427e-1035j)  +/-  (2.71e-241, 2.71e-241j)
| (-0.97006049783542872712 + 1.987089691606483817e-1033j)  +/-  (1.32e-239, 1.32e-239j)
| (-0.74297908326598811891 - 2.0063130288434595658e-1046j)  +/-  (1.49e-242, 1.49e-242j)
| (-0.89859912908272990619 + 2.3110734198838930663e-1048j)  +/-  (2.39e-240, 2.39e-240j)
| (0.13908650899000955713 - 5.8016050071982738526e-1067j)  +/-  (4.91e-253, 4.91e-253j)
| (0.74297908326598811891 + 7.0262177521607304409e-1057j)  +/-  (1.41e-242, 1.41e-242j)
| (0.52980585625888353667 + 5.166051417874792088e-1063j)  +/-  (5.85e-246, 5.85e-246j)
| (-0.82881374149829671237 + 1.0877052047868993564e-1057j)  +/-  (2.52e-241, 2.52e-241j)
| (-0.69448726318668278005 + 3.3530839278841083513e-1060j)  +/-  (2.73e-243, 2.73e-243j)
| (0.0026780668333038090376 + 2.4808677898758232247e-1070j)  +/-  (2.93e-256, 2.93e-256j)
| (0.69448726318668278005 + 8.0342909494671497462e-1061j)  +/-  (2.69e-243, 2.69e-243j)
| (-0.0026780668333038090376 + 4.289191069922329026e-1071j)  +/-  (2.93e-256, 2.93e-256j)
| (-0.20786042668822128548 - 1.7015965751041030167e-1071j)  +/-  (9.73e-252, 9.73e-252j)
| (-0.64261281216735728096 + 5.5568122863575632443e-1063j)  +/-  (4.54e-244, 4.54e-244j)
| (-0.2755969500421847707 - 6.5908336459500209168e-1071j)  +/-  (1.61e-250, 1.61e-250j)
| (0.46935583798675702641 - 7.1786776201948818207e-1066j)  +/-  (4.99e-247, 4.99e-247j)
| (0.64261281216735728096 + 5.6233577473131971614e-1063j)  +/-  (4.23e-244, 4.23e-244j)
| (-0.069739273319722221214 + 1.8694559081104731647e-1076j)  +/-  (2.2e-254, 2.2e-254j)
| (-0.58764040350691159296 - 3.346793043553647694e-1067j)  +/-  (5.26e-245, 5.26e-245j)
| (-0.40661625810907595575 - 3.7864864900856108145e-1070j)  +/-  (4.64e-248, 4.64e-248j)
| (0.2755969500421847707 + 2.4386751168312538949e-1070j)  +/-  (1.64e-250, 1.64e-250j)
| (0.58764040350691159296 + 4.9867535872722977921e-1068j)  +/-  (5.24e-245, 5.24e-245j)
| (0.20786042668822128548 - 6.9076587128645142709e-1075j)  +/-  (8.93e-252, 8.93e-252j)
| (-0.34193582089208422516 - 8.8472106982854995886e-1073j)  +/-  (2.89e-249, 2.89e-249j)
| (-0.52980585625888353667 - 3.9447408681167629163e-1069j)  +/-  (5.47e-246, 5.47e-246j)
| (-0.13908650899000955713 + 2.9244612312462516309e-1077j)  +/-  (4.63e-253, 4.63e-253j)
| (0.40661625810907595575 + 3.3904931957304820922e-1072j)  +/-  (4.09e-248, 4.09e-248j)
| (0.34193582089208422516 + 3.6893660170697015669e-1073j)  +/-  (2.83e-249, 2.83e-249j)
| (0.069739273319722221214 + 3.3345374861062651883e-1079j)  +/-  (2.24e-254, 2.24e-254j)
| (-0.46935583798675702641 - 1.5294045951071908562e-1070j)  +/-  (5.18e-247, 5.18e-247j)
-------------------------------------------------
The weights are:
| (0.0025534101427853465245 + 1.004455088643278361e-929j)  +/-  (8.61e-67, 2.46e-182j)
| (0.012154161013953638319 - 5.8623362481836916089e-932j)  +/-  (3.02e-67, 8.61e-183j)
| (0.02156007863617403069 - 1.0956421681960105365e-931j)  +/-  (3e-67, 8.57e-183j)
| (0.012154161013953638319 + 8.0713746558795438011e-930j)  +/-  (1.58e-67, 4.52e-183j)
| (0.034933172937391134655 - 2.8471683818261842358e-930j)  +/-  (2.21e-68, 6.31e-184j)
| (0.02156007863617403069 + 4.4262080178141554332e-930j)  +/-  (3.09e-68, 8.83e-184j)
| (0.0071384717047194472169 + 3.5600572055333052537e-932j)  +/-  (2.04e-69, 5.82e-185j)
| (0.034933172937391134655 + 2.034216751963100484e-931j)  +/-  (2.7e-70, 7.7e-186j)
| (0.026098422693866690843 - 3.6927805657211801886e-930j)  +/-  (1.11e-68, 3.17e-184j)
| (0.0071384717047194472169 - 1.4917903543293480388e-929j)  +/-  (2.5e-68, 7.15e-184j)
| (0.030601062129803198524 + 3.1938165275959625905e-930j)  +/-  (3.36e-69, 9.59e-185j)
| (0.0025534101427853465245 - 1.2050779509526241054e-932j)  +/-  (2.91e-70, 8.32e-186j)
| (0.026098422693866690843 + 1.3822898843724113e-931j)  +/-  (5.81e-71, 1.66e-186j)
| (0.042942033725278088989 + 2.8777047568482871436e-931j)  +/-  (2.07e-72, 5.91e-188j)
| (0.016966109535547731828 - 5.6308429579784338532e-930j)  +/-  (6.37e-69, 1.82e-184j)
| (0.042942033725278088989 - 2.4342963138781159782e-930j)  +/-  (2.63e-72, 7.5e-188j)
| (0.03902766114301940683 + 2.6059102436871973322e-930j)  +/-  (2.18e-71, 6.24e-187j)
| (0.016966109535547731828 + 8.2902333308669572867e-932j)  +/-  (8.86e-72, 2.53e-187j)
| (0.046703533709501481518 - 3.3995173982068975518e-931j)  +/-  (7.77e-75, 2.22e-190j)
| (0.030601062129803198524 - 1.6906514926087984063e-931j)  +/-  (5.67e-73, 1.62e-188j)
| (0.06914204173787005908 + 5.4459834187794206147e-930j)  +/-  (5.3e-78, 1.51e-193j)
| (0.046703533709501481518 + 2.3126513895028906009e-930j)  +/-  (9.46e-75, 2.7e-190j)
| (0.059189530611028394364 + 2.2429921783365948472e-930j)  +/-  (2.98e-77, 8.5e-193j)
| (0.03902766114301940683 - 2.4270084250941922702e-931j)  +/-  (4.16e-74, 1.19e-189j)
| (0.05023319251083047212 + 4.0195678310158837177e-931j)  +/-  (4.77e-76, 1.36e-191j)
| (0.035004059674046297318 + 1.235875611592802139e-928j)  +/-  (5.6e-79, 1.6e-194j)
| (0.05023319251083047212 - 2.2350927010410692678e-930j)  +/-  (1.5e-77, 4.28e-193j)
| (0.035004059674046297318 - 1.2292675260767551534e-928j)  +/-  (5.14e-79, 1.47e-194j)
| (0.068326647827130327838 + 2.5617186981924196362e-930j)  +/-  (5.59e-81, 1.6e-196j)
| (0.053466843749047230676 - 4.7747507555034723304e-931j)  +/-  (8.52e-80, 2.43e-195j)
| (0.067086309687541146126 - 1.7991566309722241126e-930j)  +/-  (2.59e-81, 7.38e-197j)
| (0.061654939188783787833 - 2.3341775082174797502e-930j)  +/-  (2.46e-81, 7.04e-197j)
| (0.053466843749047230676 + 2.1991263377360157457e-930j)  +/-  (3.88e-80, 1.11e-195j)
| (0.069463538504166184862 + 8.820894289985245834e-930j)  +/-  (1.93e-81, 5.52e-197j)
| (0.056440056315551742233 + 5.7080062179292370403e-931j)  +/-  (1.74e-81, 4.97e-197j)
| (0.063764049635315343387 - 1.0510136795466822887e-930j)  +/-  (1.59e-82, 4.54e-198j)
| (0.067086309687541146126 + 3.1699187501196658467e-930j)  +/-  (3.4e-83, 9.73e-199j)
| (0.056440056315551742233 - 2.2014103458439326014e-930j)  +/-  (6.49e-82, 1.85e-197j)
| (0.068326647827130327838 - 3.9077397191254665904e-930j)  +/-  (3.99e-83, 1.14e-198j)
| (0.065550673186648818223 + 1.3482970849880409475e-930j)  +/-  (4.68e-83, 1.34e-198j)
| (0.059189530611028394364 - 6.8843203817856976487e-931j)  +/-  (2.26e-83, 6.46e-199j)
| (0.06914204173787005908 - 4.114927285722686974e-930j)  +/-  (7.29e-83, 2.09e-198j)
| (0.063764049635315343387 + 2.4937341103529680836e-930j)  +/-  (4.31e-84, 1.23e-199j)
| (0.065550673186648818223 - 2.7514930527202348962e-930j)  +/-  (3.58e-84, 1.02e-199j)
| (0.069463538504166184862 - 1.0144803966746967638e-929j)  +/-  (1.05e-83, 3.04e-199j)
| (0.061654939188783787833 + 8.4200326618051070832e-931j)  +/-  (1.07e-84, 2.91e-200j)
