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我正在使用 Qflow 1.1 来合成数字系统的布局和布线，不幸的是我在 ABC 阶段遇到了问题，synth.log 输出为：

46.5.1. Executing ABC.
ERROR: ABC: execution of command "/usr/bin/berkeley-abc -s -f /tmp/yosys-abc-xvRO2o/abc.script 2>&1" failed: return code 137.
Running ABC command: <yosys-exe-dir>/berkeley-abc -s -f <abc-temp-dir>/abc.script 2>&1
ABC: ABC command line: "source <abc-temp-dir>/abc.script".
ABC: 
ABC: + read_blif <abc-temp-dir>/input.blif 
ABC: + read_lib -w /usr/share/qflow/tech/osu035/osu035_stdcells.lib 
ABC: Parsing finished successfully.  Parsing time =     0.00 sec
ABC: Scl_LibertyReadGenlib() skipped sequential cell "DFFNEGX1".
ABC: Scl_LibertyReadGenlib() skipped sequential cell "DFFPOSX1".
ABC: Scl_LibertyReadGenlib() skipped sequential cell "DFFSR".
ABC: Scl_LibertyReadGenlib() skipped sequential cell "LATCH".
ABC: Scl_LibertyReadGenlib() skipped three-state cell "PADINOUT".
ABC: Scl_LibertyReadGenlib() skipped three-state cell "TBUFX1".
ABC: Scl_LibertyReadGenlib() skipped three-state cell "TBUFX2".
ABC: Scl_LibertyReadGenlib() skipped cell "PADFC" without logic function.
ABC: Scl_LibertyReadGenlib() skipped cell "PADNC" without logic function.
ABC: Scl_LibertyReadGenlib() skipped cell "PADVDD" without logic function.
ABC: Scl_LibertyReadGenlib() skipped cell "PADGND" without logic function.
ABC: Library "osu035_stdcells" from "/usr/share/qflow/tech/osu035/osu035_stdcells.lib" has 28 cells (11 skipped: 4 seq; 3 tri-state; 4 no func).  Time =     0.01 sec
ABC: Memory =    0.38 MB. Time =     0.01 sec
ABC: Warning: Detected 2 multi-output gates (for example, "FAX1").
ABC: + strash 
ABC: + scorr 
ABC: Error: The network is combinational (run "fraig" or "fraig_sweep").
ABC: + ifraig 
ABC: + retime 
ABC: + strash 
ABC: + dch -f 
ABC: + map -M 1 
ABC: Killed
outputprep failure:  No file or1200_top_mapped.blif.
Premature exit.

请问有人有解决这个问题的想法吗？

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