saber仿真没有显示出错信息，但是不能仿真，看看到底错在哪？

dc
execution time= 0.0469 sec.
> tr (monitor 100,tend 0.04,tniter 5,tstep 100n
     time        fn/ne fk  step     CPU/st    tot CPU   terror    done
   100n            0    0 100n      0.000s     0.000s  8.47E-17   0.00%

System size:
         134 analog variables
         139 digital variables
         142 components and subsystems
          33 nonlinear components

Algorithm:
           9 time steps
           0 backtracks
           0 rollbacks
          19 events
           0 Newton iterations
           0 Newton iterations/timestep

CPU times:
        105u sec/nonlinear device/timestep

execution time= 0.0312 sec.
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