Comments (4)
Obviously that should not happen.. but without code to reproduce it there is nothing I can do about the issue. You can try narrow it down to a small example that doesn't contain any secret stuff and post that code.
from riscv-formal.
There should be a line smt2: starting process ...
in the output that tells you the command that failed. Maybe you can at least generate a stack trace for the assertion?
The input file for that command is pc_bwd_ch0/model/design.il
. You can try generating a minimal test case by removing cell..endcell
blocks from that file and simply re-running yosys design_smt2.ys
in pc_bwd_ch0/model/
. That might be simpler than trying to strip the original Verilog code to a minimal test case.
I am currently in Palo Alto. Your github profile says you are at UCB. I can take an Uber/Lyft to UCB if you'll let me troubleshoot this issue with your code on-site on your hardware..
from riscv-formal.
That is an amazing offer, but unfortunately I am using riscv-formal for an internship, so I'll just have to narrow it down to a smaller example. Thanks for the tips on directly using the .il
file, I will try that.
One difference I have noticed in other wrappers is the liberal use of the keep
attribute. Is this merely to simplify debugging, or is it necessary in some capacity?
from riscv-formal.
One difference I have noticed in other wrappers is the liberal use of the keep attribute. Is this merely to simplify debugging, or is it necessary in some capacity?
It is just for debugging to make sure that those wires end up in VCD traces (i.e. are not optimized away).
from riscv-formal.
Related Issues (20)
- Adding support for a newRISC-V processor to riscv-formal HOT 4
- Failed Checks in picorv32 Verification Following Quickstart Guide HOT 3
- Misaligned JAL(R) RD register writeback expectations HOT 4
- JAL handling procedure HOT 1
- Value of rs1 during CSR*I instructions HOT 2
- OOPS forget i said anything
- Incorrect width of insn_funct6 in I-type (shift variation) instruction format?
- Debug modelling
- "ERROR: syntax error, unexpected TOK_RAND" in quick start guide HOT 2
- Instruction checks: non-universal assertions should be generated based on instruction type
- How to set values in the genchecks.cfg file?
- Support for Zce?
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- Can WARL read-only be handled in csrw_check?
- are rvfi_valid and rvfi_trap mutually exclusive.
- Some confusion about skip option
- Is this repo no longer active?
- syntax error in quickstart HOT 1
- RV32I and RV64I
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from riscv-formal.