Fully unroll LeNet-5, Stucked 12/19

[CNStanLee]

I am trying to unroll a LeNet-5-like NN fully, but the flow seems stucked at 12/19.

The last HLS log is attached below:

INFO: [XFORM 203-11] Balancing expressions in function 'Matrix_Vector_Activate_Batch<120u, 84u, 120u, 84u, 1u, Recast, Slice<ap_uint<1>, 1u>, Identity, ap_uint<120>, ap_uint<84>, BinaryWeights<120u, 84u, 1u>, ThresholdsActivation<1u, 84u, 1u, ap_int<8>, ap_uint<1>, 0, comp::less_equal<ap_int<8>, ap_int<8> > >, ap_resource_dflt>' (/home/changhong/prj/finn/deps/finn-hlslib/mvau.hpp:128:1)...6479 expression(s) balanced.

Shall I still wait for that, or what constraints have been violated by this expansion, causing the design to stop? Is there any log to check?

Thanks!!