Quartus_cdb (17.1/18.0) crashes while generating VQM for StratixV for a simple adder

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Hi All, 

 I am using Quartus17.1 as well as Quartus 18.0  quartus_cdb crashes with following error only when StratixV family is used: *** Fatal Error: Segment Violation at (nil) Module: quartus_cdb Stack Trace:  0xbbd90: DEV_DEVICE::get_pad_info() const (ddb_dev)   End-trace  The verilog file, Add_24Ux24U_24U_4.v :# ########################## module Add_24Ux24U_24U_4 (  in2,  in1,  out1  ); input [23:0] in2,  in1; output [23:0] out1; wire [23:0] asc001;  assign asc001 =  +(in2)  +(in1);  assign out1 = asc001; endmodule# ########################  The tcl file (syn.tcl):# ########################  load_package flow  load_package report  load_package sdc   set module "Add_24Ux24U_24U_4"   proc syn { module family verilogInput} {  set proj [project_new -overwrite $module]  set_global_assignment -name FAMILY $family  set_global_assignment -name DEVICE Auto  set_global_assignment -name VERILOG_FILE ${module}.v  set_global_assignment -name NUM_PARALLEL_PROCESSORS 2  set_instance_assignment -name VIRTUAL_PIN ON -to in*  set_instance_assignment -name VIRTUAL_PIN ON -to in*  set_instance_assignment -name VIRTUAL_PIN ON -to out*  set_instance_assignment -name PARTITION_HIERARCHY root_partition -to | -section_id Top   execute_module -tool map  execute_module -tool fit  execute_module -tool cdb -args "--vqm=${module}.vqm"  project_close  }   syn $module "StratixV" $module# ########################  Command used to run > quartus_sta -t syn.tcl  Please let me know any solution to this issue.  Thanks, Srinivasa

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Contents of cr_ie_info.json 

{  "system" : {  "platform" : "linux64",  "os_name" : "Red Hat",  "os_version" : ""  },  "error" : {  "executable" : "quartus_cdb",  "comment" : "not_applicable",  "error_message" : "Segment Violation at (nil)",  "source_file" : "unknown",  "line" : "0",  "stack_trace" : "\t0x7f387c125d60: ddb_dev + 0xbad60 (_ZNK10DEV_DEVICE12get_pad_infoEv + 0)\n",  "subsystem" : "unknown"  },  "quartus" : {  "quartus_bits" : "64",  "version" : "15.1.0",  "build" : "185",  "edition" : "Standard Edition"  } }