encounter SEGV internal error (with optDesign -postRoute)

Hello *,

I am trying to debug an encounter SEGV internal error - termination issue with optDesign -postRoute (using the post Route engine-works fine with other engines)  I have attached part of the log at the end of this message.

I am not sure what is going wrong, this placed design works fine with other Tech files -when i load a different tech file into the saveDesign image and perform optDesign postRoute, and extract timing.

So I am concluding that it has something to do with the ICT/TECH file of the buggy run which might be triggering this issue . Please do advice me how to proceed with this.

LOGFILE:

Extraction called for design 'des' of instances=36916 and nets=38779 using extraction engine 'postRoute' at effort level 'high' .

**WARN: (ENCEXT-3530):  Use of command 'setDesignMode -process <process_node>' prior to extraction is recommended for maximum accuracy and optimal automatic threshold setting.

Integrated QRC (IQRC) Extraction called for design 'des'.

No IQRC parasitic data in encounter. Going for fullchip extraction.

Encounter terminated by internal (SEGV) error/signal...

*** Stack trace:

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(syStackTrace+0x145)[0xf3b11fd]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter[0x8f118d7]

[0xf7732410]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(_ZN11Cce_Session10InitializeEv+0x55d)[0x1110a79d]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(_Z16qxCCEGetHaloSizePcS_iPd+0x15c)[0xbc7ae9c]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter[0xbc5ae84]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter[0xbc5d93f]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter[0xbc5f7bb]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(_Z14dcRCExtractionPc+0x551)[0xbdad891]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(_Z17peRCExtractionCmdPvP10Tcl_InterpiPPc+0x770)[0xbcd9540]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(_ZN10tcmBaseCmd7executeEP10Tcl_InterpiPPc+0xfd)[0x103ce78d]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(_ZN6tcmMgr9cmdParserEPvP10Tcl_InterpiPPc+0xae)[0x103c75ae]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(TclInvokeStringCommand+0x4f)[0x10a71e2f]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(TclEvalObjvInternal+0x126)[0x10a72e46]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter[0x10a992ee]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(TclCompEvalObj+0xa3)[0x10a98853]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(Tcl_EvalObjEx+0x206)[0x10a74176]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(Tcl_RecordAndEvalObj+0xb4)[0x10aa6804]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(Tcl_RecordAndEval+0x4d)[0x10aa66cd]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(_Z17rdaEditCmdLineEndPc+0x298)[0x8e98598]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(_Z9elEndLinev+0x11b)[0xd2447bb]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(_Z21el_callback_read_charv+0x273)[0xd248b23]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter[0x10ae2922]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(Tcl_ServiceEvent+0x99)[0x10ac02e9]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(Tcl_DoOneEvent+0x136)[0x10ac0686]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(Tcl_AppInit+0x39c)[0x8e96f5c]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(Tcl_Main+0x1f4)[0x10abb814]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(_Z7fe_mainiPPc+0x393)[0x8e96893]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter(main+0x5f)[0x8e9691f]

/lib/libc.so.6(__libc_start_main+0xe6)[0x194d36]

/tools/cadence/edi101/tools.lnx86/fe/bin/32bit/encounter[0x8e96341]