Starting with polynomial:
P : 4194304*t^23 - 24117248*t^21 + 60293120*t^19 - 85917696*t^17 + 76873728*t^15 - 44843008*t^13 + 17145856*t^11 - 4209920*t^9 + 631488*t^7 - 52624*t^5 + 2024*t^3 - 23*t
Extension levels are: 23 24
-------------------------------------------------
Trying to find an order 24 Kronrod extension for:
P1 : 4194304*t^23 - 24117248*t^21 + 60293120*t^19 - 85917696*t^17 + 76873728*t^15 - 44843008*t^13 + 17145856*t^11 - 4209920*t^9 + 631488*t^7 - 52624*t^5 + 2024*t^3 - 23*t
Solvable: 1
-------------------------------------------------
Ending with final polynomial:
P : 4194304*t^47 - 50331648*t^45 + 282853376*t^43 - 989069312*t^41 + 2411560960*t^39 - 4354408448*t^37 + 6036126720*t^35 - 6571711488*t^33 + 5701698816*t^31 - 3977205760*t^29 + 2240610064*t^27 - 1020415344*t^25 + 374802090*t^23 - 110415180*t^21 + 1654676925/64*t^19 - 303961905/64*t^17 + 688333995/1024*t^15 - 18308115/256*t^13 + 90583545/16384*t^11 - 4851275/16384*t^9 + 1342165/131072*t^7 - 13409/65536*t^5 + 8119/4194304*t^3 - 23/4194304*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
Positive weights:   47 out of 47
Indefinite weights: 0 out of 47
Negative weights:   0 out of 47
Extension rule has valid weights: 1
-------------------------------------------------
The nodes are:
| (0.99068594603633075234 - 7.8529633555905085278e-825j)  +/-  (1.92e-238, 1.92e-238j)
| (-0.99068594603633075234 + 7.7462320434553928668e-839j)  +/-  (2.08e-238, 2.08e-238j)
| (-0.91721130150545301784 + 1.0237019418114548649e-841j)  +/-  (1.77e-239, 1.77e-239j)
| (7.7779019781556227862e-870 + 3.8937582863532173483e-869j)  +/-  (1.87e-867, 1.87e-867j)
| (0.94226092211882049562 + 1.2465605281245735712e-840j)  +/-  (3.98e-239, 3.98e-239j)
| (0.91721130150545301784 + 3.5925999066339703683e-861j)  +/-  (1.59e-239, 1.59e-239j)
| (-0.97908408768232287563 + 5.7012904575591899998e-878j)  +/-  (1.32e-238, 1.32e-238j)
| (-0.88788521840237523498 + 1.6324759574122167284e-880j)  +/-  (6.91e-240, 6.91e-240j)
| (-0.99766876919053919845 + 7.5376554787745407866e-878j)  +/-  (2.61e-238, 2.61e-238j)
| (1 - 1.2107886764422333499e-883j)  +/-  (1.32e-238, 1.32e-238j)
| (0.88788521840237523498 - 2.9630097458259829295e-909j)  +/-  (5.47e-240, 5.47e-240j)
| (-1 - 1.4605461838138349187e-910j)  +/-  (1.66e-238, 1.66e-238j)
| (-0.94226092211882049562 - 1.9405306161501799052e-913j)  +/-  (3.51e-239, 3.51e-239j)
| (-0.85441940454648855255 + 2.470380161841626073e-914j)  +/-  (1.74e-240, 1.74e-240j)
| (0.99766876919053919845 + 9.7142319447079007559e-910j)  +/-  (2.3e-238, 2.3e-238j)
| (0.85441940454648855255 - 6.9417031601075884477e-924j)  +/-  (1.75e-240, 1.75e-240j)
| (0.81696989301044201697 + 8.8274482303349691289e-925j)  +/-  (4.43e-241, 4.43e-241j)
| (0.97908408768232287563 + 1.6690074708557065116e-926j)  +/-  (1.45e-238, 1.45e-238j)
| (-0.73083596427812410165 + 7.7106546868183340094e-937j)  +/-  (2.12e-242, 2.12e-242j)
| (-0.96291728734779929502 + 2.6481248065705887215e-936j)  +/-  (8.92e-239, 8.92e-239j)
| (0.77571129070441980704 - 3.5812525151010350971e-939j)  +/-  (9.66e-242, 9.66e-242j)
| (0.73083596427812410165 + 6.3365163292350088603e-940j)  +/-  (2.13e-242, 2.13e-242j)
| (0.96291728734779929502 + 8.2436633847293869507e-940j)  +/-  (7.26e-239, 7.26e-239j)
| (-0.33487961217098615196 + 1.7681174823247242451e-958j)  +/-  (1.75e-249, 1.75e-249j)
| (-0.77571129070441980704 + 9.5306843450712961484e-949j)  +/-  (1.09e-241, 1.09e-241j)
| (0.20345601305263378988 + 8.454477716043526831e-963j)  +/-  (5.26e-252, 5.26e-252j)
| (0.68255314321865408287 + 4.3644061994569372762e-953j)  +/-  (2.98e-243, 2.98e-243j)
| (0.51958395003543357813 + 5.2271975580160940861e-957j)  +/-  (4.37e-246, 4.37e-246j)
| (-0.81696989301044201697 - 9.0361085689867476436e-953j)  +/-  (4.38e-241, 4.38e-241j)
| (-0.68255314321865408287 + 1.2317382990933494886e-956j)  +/-  (3.55e-243, 3.55e-243j)
| (-0.20345601305263378988 - 8.5988564178336045629e-968j)  +/-  (5.1e-252, 5.1e-252j)
| (0.33487961217098615196 + 8.1194253485987654391e-965j)  +/-  (1.68e-249, 1.68e-249j)
| (0.63108794432605278937 - 4.1788323628810619385e-960j)  +/-  (4.65e-244, 4.65e-244j)
| (0.13616664909624659076 + 6.4956251456644004194e-969j)  +/-  (2.09e-253, 2.09e-253j)
| (-0.63108794432605278937 + 1.503278923439455388e-960j)  +/-  (5.02e-244, 5.02e-244j)
| (-0.57668032211486714125 - 5.0903875722327464437e-963j)  +/-  (4.59e-245, 4.59e-245j)
| (0.068242413364670975921 - 1.3325676111305816616e-971j)  +/-  (1.65e-254, 1.65e-254j)
| (0.57668032211486714125 - 3.8272673422428686049e-964j)  +/-  (5.3e-245, 5.3e-245j)
| (0.26979677115702427125 - 7.631775971497888803e-971j)  +/-  (9.51e-251, 9.51e-251j)
| (-0.13616664909624659076 + 3.169683740530496978e-972j)  +/-  (1.95e-253, 1.95e-253j)
| (-0.51958395003543357813 - 1.9215071178432731632e-965j)  +/-  (4.71e-246, 4.71e-246j)
| (-0.398401089846241458 - 5.1300082548712181558e-970j)  +/-  (2.98e-248, 2.98e-248j)
| (0.46006503773115212604 - 2.0959082832551939713e-966j)  +/-  (3.98e-247, 3.98e-247j)
| (0.398401089846241458 - 5.5844969589546411938e-968j)  +/-  (3e-248, 3e-248j)
| (-0.068242413364670975921 + 1.0259469644555050594e-974j)  +/-  (1.65e-254, 1.65e-254j)
| (-0.46006503773115212604 + 6.1943074630990304309e-967j)  +/-  (4.03e-247, 4.03e-247j)
| (-0.26979677115702427125 + 2.583250052550978431e-971j)  +/-  (1.13e-250, 1.13e-250j)
-------------------------------------------------
The weights are:
| (0.021739130434782608696 - 4.5607917818090628648e-825j)  +/-  (2.67e-67, 2.44e-181j)
| (0.021739130434782608696 + 8.6160803718719777543e-827j)  +/-  (1.01e-67, 9.28e-182j)
| (0.021739130434782608696 + 8.9478924982334595633e-827j)  +/-  (7.19e-68, 6.57e-182j)
| (0.021739130434782608696 - 1.7232160743753129471e-826j)  +/-  (1.95e-69, 1.78e-183j)
| (0.021739130434782608696 - 3.525379666875495731e-825j)  +/-  (3.3e-68, 3.02e-182j)
| (0.021739130434782608696 + 2.3234762927639159347e-825j)  +/-  (2.91e-68, 2.66e-182j)
| (0.021739130434782608696 - 8.6668287040973359998e-827j)  +/-  (1.61e-68, 1.47e-182j)
| (0.021739130434782608696 - 9.0875766603065661368e-827j)  +/-  (4.05e-69, 3.71e-183j)
| (0.021739130434782608696 - 8.5858219048602703989e-827j)  +/-  (6.11e-69, 5.59e-183j)
| (0.010869565217391304348 - 9.1644624001886723811e-825j)  +/-  (3.92e-71, 3.58e-185j)
| (0.021739130434782608696 - 1.6606555091188081429e-825j)  +/-  (1.87e-71, 1.71e-185j)
| (0.010869565217391304348 + 4.287883657045585195e-827j)  +/-  (3.11e-69, 2.85e-183j)
| (0.021739130434782608696 - 8.831934157080742012e-827j)  +/-  (2.92e-70, 2.67e-184j)
| (0.021739130434782608696 + 9.2524036436644815739e-827j)  +/-  (8.16e-72, 7.46e-186j)
| (0.021739130434782608696 + 2.4448076503822350189e-824j)  +/-  (4.28e-71, 3.91e-185j)
| (0.021739130434782608696 + 1.2528137341731549235e-825j)  +/-  (8.05e-73, 7.37e-187j)
| (0.021739130434782608696 - 9.8273355693448006223e-826j)  +/-  (1.15e-73, 1.05e-187j)
| (0.021739130434782608696 - 1.4714590497286662894e-824j)  +/-  (4.04e-72, 3.69e-186j)
| (0.021739130434782608696 - 9.9166088833326630273e-827j)  +/-  (4.49e-76, 4.11e-190j)
| (0.021739130434782608696 + 8.7385499660104828203e-827j)  +/-  (6.67e-72, 6.1e-186j)
| (0.021739130434782608696 + 7.9412428606140516014e-826j)  +/-  (6.09e-75, 5.57e-189j)
| (0.021739130434782608696 - 6.5698136105933690982e-826j)  +/-  (6.39e-76, 5.84e-190j)
| (0.021739130434782608696 + 6.1478156579905913549e-825j)  +/-  (6.46e-73, 5.91e-187j)
| (0.021739130434782608696 + 1.2878774167731789122e-826j)  +/-  (6.7e-80, 6.13e-194j)
| (0.021739130434782608696 + 9.6646774086762059337e-827j)  +/-  (2.88e-77, 2.64e-191j)
| (0.021739130434782608696 + 2.168573469249507811e-826j)  +/-  (4.04e-80, 3.7e-194j)
| (0.021739130434782608696 + 5.5403577004998125728e-826j)  +/-  (1.58e-77, 1.44e-191j)
| (0.021739130434782608696 - 3.6237714154457886478e-826j)  +/-  (1.07e-79, 9.78e-194j)
| (0.021739130434782608696 - 9.4440872537325129188e-827j)  +/-  (1.44e-77, 1.32e-191j)
| (0.021739130434782608696 + 1.0202761564862287218e-826j)  +/-  (1.25e-79, 1.14e-193j)
| (0.021739130434782608696 + 1.4296172526840608848e-826j)  +/-  (9.2e-82, 8.42e-196j)
| (0.021739130434782608696 + 2.6031556249318559498e-826j)  +/-  (1.84e-81, 1.69e-195j)
| (0.021739130434782608696 - 4.7474289032421839723e-826j)  +/-  (1.15e-79, 1.05e-193j)
| (0.021739130434782608696 - 1.9978085374790726377e-826j)  +/-  (1.22e-81, 1.12e-195j)
| (0.021739130434782608696 - 1.0526534907317529359e-826j)  +/-  (2.33e-81, 2.13e-195j)
| (0.021739130434782608696 + 1.0891940075252928365e-826j)  +/-  (3.5e-82, 3.2e-196j)
| (0.021739130434782608696 + 1.8506996758089646396e-826j)  +/-  (1.25e-82, 1.15e-196j)
| (0.021739130434782608696 + 4.1235332281170992601e-826j)  +/-  (4.74e-82, 4.34e-196j)
| (0.021739130434782608696 - 2.3681392457492940542e-826j)  +/-  (1.23e-82, 1.12e-196j)
| (0.021739130434782608696 - 1.5149860365424916574e-826j)  +/-  (5.22e-84, 4.77e-198j)
| (0.021739130434782608696 - 1.1303714331510689492e-826j)  +/-  (4.87e-84, 4.46e-198j)
| (0.021739130434782608696 - 1.2289841476944419343e-826j)  +/-  (1.33e-84, 1.21e-198j)
| (0.021739130434782608696 + 3.2172986781094904177e-826j)  +/-  (5.16e-84, 4.71e-198j)
| (0.021739130434782608696 - 2.8823393490911871065e-826j)  +/-  (3.35e-84, 3.06e-198j)
| (0.021739130434782608696 + 1.612163780213804846e-826j)  +/-  (1.06e-84, 9.65e-199j)
| (0.021739130434782608696 + 1.1767463651371625905e-826j)  +/-  (2.98e-85, 2.76e-199j)
| (0.021739130434782608696 - 1.3543747356320606055e-826j)  +/-  (2.89e-85, 2.61e-199j)
