the prediction-correction method

[zhangyusi-hub]

When I do the following:
from phcpy.solver import total_degree_start_system
from phcpy.trackers import initialize_standard_tracker
from phcpy.trackers import initialize_standard_solution
from phcpy.trackers import next_standard_solution
from phcpy.solutions import strsol2dict
p = ['x^2 + 4x^2 - 4;', '2y^2 - x;']
(q, s) = total_degree_start_system(p)
s2 = s[3]
initialize_standard_tracker(p, q)
initialize_standard_solution(len(p), s2)
points = [next_standard_solution() for i in range(11)]
dicpts = [strsol2dict(sol) for sol in points]
tvals = [sol['t'] for sol in dicpts]
print(tvals)
that is [(0.1+0j), (0.2+0j), (0.3+0j), (0.4+0j), (0.5+0j), (0.6+0j), (0.7+0j), (0.7+0j), (0.77+0j), (0.84+0j), (0.9275+0j)].

Could you tell me how to change the t values with the function next_standard_solution()? For example, the current t values is 0.7+0j, and after running the function next_standard_solution(), the t value is 0.77+0j rather than 0.8+0j?