Strangle fault, if investigate ssd.

[D-Y-V]

I1007 00:02:52.271055 3341 caffe.cpp:344] Starting Optimization
I1007 00:02:52.271139 3341 solver.cpp:397] Solving VGG_VOC0712_SSD_300x300_train
I1007 00:02:52.271158 3341 solver.cpp:398] Learning Rate Policy: multistep
F1007 00:02:52.358620 3341 math_functions.cpp:384] Check failed: a <= b (0 vs. -1.19209e-07)
*** Check failure stack trace: ***
@ 0x7f4969541933 google::LogMessage::Fail()
@ 0x7f496954667d google::LogMessage::SendToLog()
@ 0x7f49695415c5 google::LogMessage::Flush()
@ 0x7f4969541e5f google::LogMessageFatal::~LogMessageFatal()
@ 0x7f4969df9655 caffe::caffe_rng_uniform<>()
@ 0x7f4969e05098 caffe::SampleBBox()
@ 0x7f4969e053e0 caffe::GenerateSamples()
@ 0x7f4969e055ad caffe::GenerateBatchSamples()
@ 0x7f4969ad1d2c _ZN5caffe18AnnotatedDataLayerIfE10load_batchEPNS_5BatchIfEE._omp_fn.1
@ 0x7f49669e100f _INTERNAL_25_______src_kmp_tasking_cpp_f08814ec::__kmp_invoke_task()
@ 0x7f49669e44f9 __kmp_omp_task
@ 0x7f49669e03b6 __kmpc_omp_task
@ 0x7f49669a7ed4 __kmp_api_GOMP_task_20_alias
@ 0x7f4969ad1559 _ZN5caffe18AnnotatedDataLayerIfE10load_batchEPNS_5BatchIfEE._omp_fn.0
@ 0x7f49669a8638 __kmp_api_GOMP_parallel
@ 0x7f4969ad7827 caffe::AnnotatedDataLayer<>::load_batch()
@ 0x7f4969aefdd2 caffe::BasePrefetchingDataLayer<>::GetBatch()
@ 0x7f4969aef8dd caffe::BasePrefetchingDataLayer<>::Forward_cpu()
@ 0x7f4969d4ae14 caffe::Net<>::ForwardFromTo()
@ 0x7f4969d4b0ad caffe::Net<>::Forward()
@ 0x7f4969d6fe3c caffe::Solver<>::ForwardBackward()
@ 0x7f4969d7d1f5 caffe::Solver<>::Step()
@ 0x7f4969d7d95c caffe::Solver<>::Solve()
@ 0x55b7dc96975d (unknown)
@ 0x55b7dc9619ae (unknown)
@ 0x7f4965fd0813 __libc_start_main
@ 0x55b7dc96275e (unknown)

Possible solution:
Add if block from picture https://img-blog.csdn.net/20180907212237818?watermark/2/text/aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hvdXNlX3M=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70