I've got it 2 times, but still not sure whether it is reproducible. Command 
line :


F:\AFPL\MLC2\c-opt64-time>..\..\gs-hdp64\bin\gswin32c.exe -IF:/AFPL/gs-
hdp64/Resource/Init;f:\afpl\fonts -r600
 -dMaxBitmap=100000000 -dQUIET -dNOPAUSE -dNOOUTERSAVE  -sDEVICE=ppmraw -
sOutputFile=nul -c false 0 startjob p
op /ttt usertime def -f - -c usertime ttt sub (newtime=) print == quit  
0<H:\AuxFiles\doc\Adobe\pdf_reference_
1-7.pdf 1>>cur-1.log 2>>cur-2.log

running on Vista 64. Stack snapshot at the crash point : 

>	gsdll32.dll!names_trace_finish(name_table_s * nt=0x00000000026a0038, 
gc_state_s * gcst=0x000000000006e4e0)  Line 418 + 0x5 bytes	C
 	gsdll32.dll!gs_gc_reclaim(vm_spaces_s * pspaces=0x00000000026d7170, 
int global=0x00000001)  Line 373	C
 	gsdll32.dll!context_reclaim(vm_spaces_s * pspaces=0x00000000026d7170, 
int global=0x00000001)  Line 286	C
 	gsdll32.dll!gs_vmreclaim(gs_dual_memory_s * dmem=0x00000000026d7168, 
int global=0x00000001)  Line 154	C
 	gsdll32.dll!ireclaim(gs_dual_memory_s * dmem=0x00000000026d7168, int 
space=0x00000008)  Line 76	C
 	gsdll32.dll!interp_reclaim(gs_context_state_s * * 
pi_ctx_p=0x00000000028351d8, int space=0x00000008)  Line 427 + 0x18 bytes
	C
 	gsdll32.dll!gs_call_interp(gs_context_state_s * * 
pi_ctx_p=0x00000000028351d8, ref_s * pref=0x000000000006eb70, int 
user_errors=0x00000001, int * pexit_code=0x000000000006ec60, ref_s * 
perror_object=0x000000000006ec50)  Line 531 + 0x3e bytes	C
 	gsdll32.dll!gs_interpret(gs_context_state_s * * 
pi_ctx_p=0x00000000028351d8, ref_s * pref=0x000000000006eb70, int 
user_errors=0x00000001, int * pexit_code=0x000000000006ec60, ref_s * 
perror_object=0x000000000006ec50)  Line 455 + 0x2c bytes	C
 	gsdll32.dll!gs_main_interpret(gs_main_instance_s * 
minst=0x0000000002835150, ref_s * pref=0x000000000006eb70, int 
user_errors=0x00000001, int * pexit_code=0x000000000006ec60, ref_s * 
perror_object=0x000000000006ec50)  Line 215 + 0x2c bytes	C
 	gsdll32.dll!gs_main_run_string_end(gs_main_instance_s * 
minst=0x0000000002835150, int user_errors=0x00000001, int * 
pexit_code=0x000000000006ec60, ref_s * perror_object=0x000000000006ec50)  Line 
528	C
 	gsdll32.dll!gs_main_run_string_with_length(gs_main_instance_s * 
minst=0x0000000002835150, const char * str=0x00000001807df380, unsigned int 
length=0x00000009, int user_errors=0x00000001, int * 
pexit_code=0x000000000006ec60, ref_s * perror_object=0x000000000006ec50)  Line 
486	C
 	gsdll32.dll!gs_main_run_string(gs_main_instance_s * 
minst=0x0000000002835150, const char * str=0x00000001807df380, int 
user_errors=0x00000001, int * pexit_code=0x000000000006ec60, ref_s * 
perror_object=0x000000000006ec50)  Line 469	C
 	gsdll32.dll!run_string(gs_main_instance_s * minst=0x0000000002835150, 
const char * str=0x00000001807df380, int options=0x00000002)  Line 798 + 0x27 
bytes	C
 	gsdll32.dll!swproc(gs_main_instance_s * minst=0x0000000002835150, 
const char * arg=0x0000000002575d3b, arg_list_s * pal=0x000000000006f240)  
Line 267 + 0x1a bytes	C
 	gsdll32.dll!gs_main_init_with_args(gs_main_instance_s * 
minst=0x0000000002835150, int argc=0x0000001d, char * * 
argv=0x00000000023ae8b0)  Line 200 + 0x1a bytes	C
 	gsdll32.dll!gsapi_init_with_args(void * lib=0x0000000002835050, int 
argc=0x0000001d, char * * argv=0x00000000023ae8b0)  Line 168	C
 	gswin32c.exe!main(int argc=0x0000001b, char * * 
argv=0x0000000002575b80)  Line 417 + 0x19 bytes	C
 	gswin32c.exe!__tmainCRTStartup()  Line 327 + 0x19 bytes	C
 	gswin32c.exe!mainCRTStartup()  Line 196	C
 	kernel32.dll!00000000774e495d() 	
 	[Frames below may be incorrect and/or missing, no symbols loaded for 
kernel32.dll]	
 	ntdll.dll!0000000077618791()