m=2 k=11 wrong=True : 11 parameters
cubics: 44
(1) smoothness: min over cubics of the smallest singular value (rank-15 test): 0.33754
(2) every cubic passes through exactly the 9 vertices of its Lambda_t: True
(3) at each vertex: 3k = 33 cubics, k = 11 tangent directions, each shared by exactly 3 cubics of 3 distinct pencils: True
    time 1.4s
(4) pairs of cubics from different pencils: 726; with vertex multiplicities as predicted (2 at shared directions, 1 otherwise) and 9 points in total: 726 ; bad: 0
    histogram ((multiplicities at common vertices), #off-vertex points): count
       ((1, 1, 1, 1, 1, 1), 3) 432
       ((1, 1, 1, 1, 1, 2), 2) 216
       ((1, 1, 1, 1, 2, 2), 1) 54
       ((1, 1, 1, 2, 2, 2), 0) 24
    time 59.0s
(5) distinct off-vertex intersection points: 1593 (BHRS: 9k(m^2-1) = 297)
    number of cubics through a point -> number of points: {4: 9, 2: 1512, 3: 72}
    every point on exactly one cubic of each of the 4 pencils, no near-misses: False
    tangent lines pairwise distinct at every point (ordinary): True ; min |l_a x l_b| = 0.1714
    off-vertex points per cubic -> number of cubics: {72: 24, 81: 8, 75: 12} (BHRS: 9(m^2-1) = 27)
total time 145.3s
