Starting with polynomial:
P : t^2 - 1
Extension levels are: 2 3
-------------------------------------------------
Trying to find an order 3 Kronrod extension for:
P1 : t^2 - 1
Solvable: 1
-------------------------------------------------
Ending with final polynomial:
P : t^5 - 7*t^3 + 6*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: 1
  current precision for roots: 106
  current precision for roots: 212
 current precision for weights: 106
Linear system for weights solvable: 1
Sufficient bits for target precision reached
-------------------------------------------------
The nodes are:
| (2.4494897427831780982 + 0j)  +/-  (4.27e-63, 4.27e-63j)
| (-1 - 3.0549363634996046821e-151j)  +/-  (2.51e-63, 2.51e-63j)
| (-2.4494897427831780982 + 2.1197879309511923632e-168j)  +/-  (4.27e-63, 4.27e-63j)
| (-1.1296499367669769302e-182 - 3.765499789223256434e-183j)  +/-  (5.95e-182, 5.95e-182j)
| (1 + 0j)  +/-  (0, 0j)
-------------------------------------------------
The weights are:
| (0.033333333333333333333 + 4.4280989237480194734e-153j)  +/-  (7.13e-30, 7.13e-62j)
| (0.3 - 1.008128999954869548e-151j)  +/-  (9.21e-29, 9.31e-61j)
| (0.033333333333333333333 - 1.0537971650747228711e-152j)  +/-  (3.95e-30, 3.95e-62j)
| (0.33333333333333333333 + 1.5274681817498023439e-151j)  +/-  (4.82e-29, 4.91e-61j)
| (0.3 - 4.5824045452494070354e-152j)  +/-  (2.17e-29, 1.95e-61j)
