Starting with polynomial:
P : 514589420475/524288*t^23 - 2893136075115/524288*t^21 + 7064634602025/524288*t^19 - 9821565178425/524288*t^17 + 4281195077775/262144*t^15 - 2429867476575/262144*t^13 + 902522205585/262144*t^11 - 214886239425/262144*t^9 + 62386327575/524288*t^7 - 5019589575/524288*t^5 + 185910725/524288*t^3 - 2028117/524288*t
Extension levels are: 23 24
-------------------------------------------------
Trying to find an order 24 Kronrod extension for:
P1 : 514589420475/524288*t^23 - 2893136075115/524288*t^21 + 7064634602025/524288*t^19 - 9821565178425/524288*t^17 + 4281195077775/262144*t^15 - 2429867476575/262144*t^13 + 902522205585/262144*t^11 - 214886239425/262144*t^9 + 62386327575/524288*t^7 - 5019589575/524288*t^5 + 185910725/524288*t^3 - 2028117/524288*t
Solvable: 1
-------------------------------------------------
Ending with final polynomial:
P : 514589420475/524288*t^47 - 296140493823135/25690112*t^45 + 1356152536911366675/21399863296*t^43 - 12041134887072399378075/55575444979712*t^41 + 262883710849306779033365475/509237802349101056*t^39 - 431604020951895506619686303925/474100393987013083136*t^37 + 80060286926955923669107273320111285/64996444176517147149205504*t^35 - 4828685181605423813546772459193285358175/3691213061228585303750529777664*t^33 + 18710666120441506756958418066525454313767275/16911292640018763569133052176367616*t^31 - 33018810267978447707203202857673012812036263675/43918626986128728989038536502026698752*t^29 + 314776795259295716242944719626598046844592739529475/763470611864488186533399433665207042572288*t^27 - 504531435605492634928939840368191912247124372079519271/2762437587044629966295347940325367818721951744*t^25 + 6961633920463112685168003705961328458706212260564142826917534425/106775101289001444451786020321671510606739223081844473856*t^23 - 7871588967487446417800903485543617521940513681430132218930825/422035973474314009690853835263523757338890209809661952*t^21 + 255455470192522956699156034394453798473110131903792531192475/60290853353473429955836262180503393905555744258523136*t^19 - 2393811888802884178729589676966722644243007571141733685325/3173202808077548945044013798973862837134512855711744*t^17 + 38592408735431826049532541830061999083460644112842226915/373317977420888111181648682232219157309942688907264*t^15 - 567278794759455532590640777880961437177644174022279025/53331139631555444454521240318888451044277526986752*t^13 + 296546162456637742760110336821678917814537722200646475/373317977420888111181648682232219157309942688907264*t^11 - 107254408309744930189197961589907346636673930663073825/2613225841946216778271540775625534101169598822350848*t^9 + 3573535994102649827612974667482776099165500472977475/2613225841946216778271540775625534101169598822350848*t^7 - 9813032072504554486354145372523198489801629561505/373317977420888111181648682232219157309942688907264*t^5 + 89171449580285733917003341113298637260553528325/373317977420888111181648682232219157309942688907264*t^3 - 2664533987453158013443795712808313239321250275/4106497751629769222998135504554410730409369577979904*t
-------------------------------------------------
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:
| (0.98591815072737552828 + 4.6190114424714964255e-906j)  +/-  (9.42e-239, 9.42e-239j)
| (-0.98591815072737552828 - 3.5540239843432464239e-915j)  +/-  (9.66e-239, 9.66e-239j)
| (-0.90690769474128136382 + 1.0893958182123807026e-918j)  +/-  (1.62e-239, 1.62e-239j)
| (0.39030103803029083142 - 9.7346477574818793531e-927j)  +/-  (4.7e-248, 4.7e-248j)
| (0.90690769474128136382 + 1.4747676293451698896e-915j)  +/-  (1.64e-239, 1.64e-239j)
| (0.93297108682601610235 + 7.6428966124727521801e-918j)  +/-  (3.26e-239, 3.26e-239j)
| (-0.97254247121811523196 - 1.7125364873913764884e-921j)  +/-  (8.33e-239, 8.33e-239j)
| (-0.84268732299701308829 - 5.116202302826660438e-925j)  +/-  (1.93e-240, 1.93e-240j)
| (-0.954855839860111239 + 3.8372110628394044032e-922j)  +/-  (5.7e-239, 5.7e-239j)
| (-0.99913113646342138218 + 5.7766556525081187106e-923j)  +/-  (3.18e-239, 3.18e-239j)
| (0.87675235827044166738 + 1.6255991546371768693e-923j)  +/-  (6.02e-240, 6.02e-240j)
| (5.7379937546025783122e-946 + 2.8353527958456293315e-945j)  +/-  (1.36e-943, 1.36e-943j)
| (-0.93297108682601610235 + 9.2028269196389947733e-934j)  +/-  (3.43e-239, 3.43e-239j)
| (-0.76349131622116545587 + 8.9702895548619462534e-936j)  +/-  (1.34e-241, 1.34e-241j)
| (0.99913113646342138218 + 5.318900187545390342e-932j)  +/-  (3.1e-239, 3.1e-239j)
| (0.84268732299701308829 - 2.9464047039162410126e-949j)  +/-  (2.01e-240, 2.01e-240j)
| (0.80488840161883989215 - 7.6233814471321714862e-955j)  +/-  (5.96e-241, 5.96e-241j)
| (-0.32795734571178544609 - 1.3469266916892838133e-971j)  +/-  (2.98e-249, 2.98e-249j)
| (-0.71866136313195019446 - 6.5625639224103665661e-968j)  +/-  (2.52e-242, 2.52e-242j)
| (-0.56582730590760176532 + 4.2813634544310758875e-972j)  +/-  (7.21e-245, 7.21e-245j)
| (0.99476933499755212352 + 2.3857660248474515637e-964j)  +/-  (7.73e-239, 7.73e-239j)
| (0.71866136313195019446 - 1.3903031843936796435e-987j)  +/-  (2.58e-242, 2.58e-242j)
| (0.066783657406625728505 - 4.264330077887311025e-1000j)  +/-  (2.61e-254, 2.61e-254j)
| (-0.80488840161883989215 + 5.845294621486007326e-988j)  +/-  (5.8e-241, 5.8e-241j)
| (-0.87675235827044166738 - 6.3150510578063697423e-986j)  +/-  (6.2e-240, 6.2e-240j)
| (0.32795734571178544609 - 5.4390681739257348788e-998j)  +/-  (2.86e-249, 2.86e-249j)
| (0.76349131622116545587 + 3.2572857531091276066e-985j)  +/-  (1.37e-241, 1.37e-241j)
| (0.19913467099349298846 - 2.7690064841135762393e-1000j)  +/-  (8.63e-252, 8.63e-252j)
| (-0.99476933499755212352 - 1.0859955710715730632e-987j)  +/-  (7.72e-239, 7.72e-239j)
| (-0.6706237890370424805 - 5.7887607669665863612e-995j)  +/-  (4.18e-243, 4.18e-243j)
| (0.97254247121811523196 - 5.3046262588756461519e-993j)  +/-  (8.39e-239, 8.39e-239j)
| (0.6706237890370424805 + 5.2819876798112214058e-1018j)  +/-  (4.11e-243, 4.11e-243j)
| (0.61960987576364615639 - 9.2390318878802543748e-1021j)  +/-  (6.04e-244, 6.04e-244j)
| (0.954855839860111239 - 1.4585801056621980748e-1026j)  +/-  (5.57e-239, 5.57e-239j)
| (-0.61960987576364615639 - 2.793679222343311378e-1043j)  +/-  (6.05e-244, 6.05e-244j)
| (-0.39030103803029083142 - 7.3444710689063260693e-1048j)  +/-  (5.18e-248, 5.18e-248j)
| (0.13325682429846611093 - 6.447834956655331151e-1052j)  +/-  (3.65e-253, 3.65e-253j)
| (0.56582730590760176532 + 2.852730077263871883e-1042j)  +/-  (7.18e-245, 7.18e-245j)
| (0.26413568097034493053 + 2.2544614363918624891e-1048j)  +/-  (1.92e-250, 1.92e-250j)
| (-0.19913467099349298846 + 1.1918469164491227041e-1051j)  +/-  (8.71e-252, 8.71e-252j)
| (-0.50950147784600754969 + 9.5688210586478523788e-1046j)  +/-  (7.48e-246, 7.48e-246j)
| (-0.13325682429846611093 + 8.0194891058290403667e-1052j)  +/-  (3.77e-253, 3.77e-253j)
| (0.45090098092473815173 - 9.7252322508632700933e-1045j)  +/-  (6.92e-247, 6.92e-247j)
| (0.50950147784600754969 - 5.7215046976771907072e-1045j)  +/-  (7.81e-246, 7.81e-246j)
| (-0.066783657406625728505 + 6.7127622347385199942e-1054j)  +/-  (2.61e-254, 2.61e-254j)
| (-0.45090098092473815173 - 3.4379946027170225356e-1047j)  +/-  (7.11e-247, 7.11e-247j)
| (-0.26413568097034493053 + 1.3136104552979145901e-1050j)  +/-  (1.88e-250, 1.88e-250j)
-------------------------------------------------
The weights are:
| (0.01114698188283515143 - 8.0955201101688881153e-907j)  +/-  (5.77e-68, 4.73e-183j)
| (0.01114698188283515143 - 2.6111720366161562287e-908j)  +/-  (2.2e-68, 1.8e-183j)
| (0.028134390744582537115 - 6.8655590014083723747e-908j)  +/-  (1.76e-68, 1.45e-183j)
| (0.061513720159067600175 + 4.772068250799056767e-907j)  +/-  (8.21e-69, 6.74e-184j)
| (0.028134390744582537115 - 1.6447579142012900965e-906j)  +/-  (3.57e-69, 2.93e-184j)
| (0.023978315861382881847 + 2.0988971210552098573e-906j)  +/-  (3.94e-69, 3.23e-184j)
| (0.01556335746111192107 + 3.6378896102887730782e-908j)  +/-  (1.18e-69, 9.67e-185j)
| (0.035956579457660848024 - 9.0825416427474343364e-908j)  +/-  (1.45e-70, 1.19e-185j)
| (0.019791599828081374329 - 4.7103697256900236341e-908j)  +/-  (6.41e-70, 5.26e-185j)
| (0.0023399894994666322401 - 5.4449212406293921334e-909j)  +/-  (6.43e-71, 5.28e-186j)
| (0.032143541025491955014 + 1.3577413080322709917e-906j)  +/-  (1.46e-72, 1.2e-187j)
| (0.066836871422106067892 + 3.1303990549807351959e-907j)  +/-  (8.34e-74, 6.84e-189j)
| (0.023978315861382881847 + 5.7913943662541687685e-908j)  +/-  (3.08e-70, 2.53e-185j)
| (0.043146943824156427668 - 1.1392200183464549297e-907j)  +/-  (1.53e-72, 1.25e-187j)
| (0.0023399894994666322401 + 8.1801634313801987145e-907j)  +/-  (3.72e-74, 3.05e-189j)
| (0.035956579457660848024 - 1.1595538104937135229e-906j)  +/-  (2.58e-73, 2.11e-188j)
| (0.039620313600661533334 + 1.0119611131094723517e-906j)  +/-  (5.82e-74, 4.78e-189j)
| (0.06312990445028147571 - 2.2193712597175218777e-907j)  +/-  (1.59e-75, 1.31e-190j)
| (0.046474133171248882621 + 1.2584595385545138687e-907j)  +/-  (3.68e-74, 3.02e-189j)
| (0.055095758204685410201 - 1.6400108490676828898e-907j)  +/-  (2.42e-75, 1.99e-190j)
| (0.0065468594013961888226 - 3.5825165290449244324e-906j)  +/-  (1.6e-74, 1.31e-189j)
| (0.046474133171248882621 + 8.0265289339541033294e-907j)  +/-  (6.23e-76, 5.12e-191j)
| (0.066678094435779486894 - 3.3508358538717739689e-907j)  +/-  (5.8e-77, 4.76e-192j)
| (0.039620313600661533334 + 1.0229751924387988362e-907j)  +/-  (1.51e-74, 1.24e-189j)
| (0.032143541025491955014 + 7.9573336745426177562e-908j)  +/-  (3.89e-74, 3.2e-189j)
| (0.06312990445028147571 - 4.4318407572724408118e-907j)  +/-  (1.89e-78, 1.55e-193j)
| (0.043146943824156427668 - 8.9600801895886321799e-907j)  +/-  (3.39e-77, 2.79e-192j)
| (0.065488059531724216411 - 3.8446421966803651911e-907j)  +/-  (8.28e-79, 6.8e-194j)
| (0.0065468594013961888226 + 1.600934459779132734e-908j)  +/-  (1.92e-75, 1.57e-190j)
| (0.049561823950020474452 - 1.3819549474786892863e-907j)  +/-  (3.69e-77, 3.03e-192j)
| (0.01556335746111192107 + 5.3265800352845049612e-906j)  +/-  (2.44e-77, 2e-192j)
| (0.049561823950020474452 - 7.2607271134882490734e-907j)  +/-  (6.76e-79, 5.55e-194j)
| (0.052432393318940374419 + 6.6149733081466485583e-907j)  +/-  (1.26e-79, 1.03e-194j)
| (0.019791599828081374329 - 2.9430400862254515435e-906j)  +/-  (1.41e-77, 1.16e-192j)
| (0.052432393318940374419 + 1.5092352354043647345e-907j)  +/-  (9.3e-80, 7.64e-195j)
| (0.061513720159067600175 + 2.0653145519080580336e-907j)  +/-  (1.04e-81, 8.5e-197j)
| (0.066221304754142763271 + 3.5883732744921779021e-907j)  +/-  (2.69e-81, 2.21e-196j)
| (0.055095758204685410201 - 6.0579263002233039332e-907j)  +/-  (3.56e-81, 2.92e-196j)
| (0.064462968174791171922 + 4.1239823753319633723e-907j)  +/-  (2.19e-81, 1.8e-196j)
| (0.065488059531724216411 - 2.5525452640704095511e-907j)  +/-  (1.44e-83, 1.18e-198j)
| (0.057510260299416924418 + 1.7756236597884367267e-907j)  +/-  (5.66e-83, 4.65e-198j)
| (0.066221304754142763271 + 2.7338594817583694662e-907j)  +/-  (1.29e-83, 1.06e-198j)
| (0.059644271252020734666 - 5.149322061461886495e-907j)  +/-  (4.13e-83, 3.39e-198j)
| (0.057510260299416924418 + 5.5734877037543218758e-907j)  +/-  (4.41e-83, 3.62e-198j)
| (0.066678094435779486894 - 2.9256801798801184198e-907j)  +/-  (3.07e-84, 2.53e-199j)
| (0.059644271252020734666 - 1.9174130270374319921e-907j)  +/-  (7.9e-85, 6.63e-200j)
| (0.064462968174791171922 + 2.3811920024673390144e-907j)  +/-  (8.95e-85, 7.26e-200j)
