[qibojit] loaded from cache: /home/yx/qibotn/data/jit_variational_n32_l5.npy

  bond     time(s)      fidelity      l2_err
----------------------------------------------
     1    157.4587    0.00000280    9.99e-01
     8     61.9126    0.99999014    2.22e-03
    16     63.4902    0.99999014    2.22e-03
    32     58.3594    0.99999014    2.22e-03
    64     59.7043    0.99999014    2.22e-03
   128     64.6368    0.99999014    2.22e-03
   256     64.9058    0.99999014    2.22e-03