Hi3516CV500 运行nnie sample报错

通过ruyi studio 转换 ssd caffe model ,nnie sample 代码仅修改输入wk文件及测试图片为自己的
运行

./sample_nnie_main 5

报错如下：

[Level]:Info,[Func]:SAMPLE_SVP_NNIE_Ssd [Line]:2576 [Info]:Ssd start!
mmz_userdev:mmz_userdev_release: MMB LEAK(pid=396): 0x871CE000, 1847296 bytes, 'SAMPLE_NNIE_MOD'
mmz_userdev:mmz_userdev_release: mmb<0x871ce000> mapped to userspace 0xb6a34000 will be unmaped!
mmz_userdev:mmz_userdev_release: MMB LEAK(pid=396): 0x87391000, 1380352 bytes, 'SAMPLE_NNIE_TAS'
mmz_userdev:mmz_userdev_release: mmb<0x87391000> mapped to userspace 0xb68e3000 will be unmaped!
mmz_userdev:mmz_userdev_release: MMB LEAK(pid=396): 0x874E2000, 1785856 bytes, 'SAMPLE_SSD_INIT'
mmz_userdev:mmz_userdev_release: mmb<0x874e2000> mapped to userspace 0xb672f000 will be unmaped!
Segmentation fault

感觉是wk文件的问题，请问这是什么原因？