The die word was called by the library. Unless you called it yourself, you have triggered a bug in Factor. Please report. Starting low level debugger... Basic commands: q -- continue executing Factor - NOT SAFE im -- save image to fep.image x -- exit Factor Advanced commands: d -- dump memory u -- dump object at tagged . -- print object at tagged t -- toggle output trimming s r -- dump data, retain stacks .s .r .c -- print data, retain, call stacks e -- dump environment g -- dump generations card -- print card containing address addr -- print address containing card data -- data heap dump words -- words dump tuples -- tuples dump refs -- find data heap references to object push -- push object on data stack - NOT SAFE code -- code heap dump READY .s ==== DATA STACK: # # T{ random.windows:windows-rng "Microsoft Base Cryptographic Provider v1.0" 1 } "The system cannot find the file specified." READY .c ==== CALL STACK: [ init:boot init:do-init-hooks [ command-line:(command-line) command-line:parse- command-line command-line:load-vocab-roots command-line:run-user-init "e" namesp aces:get [ T{ effects:effect { } { } f } eval:eval ] kernel:when* command-line:i gnore-cli-args? kernel:not... ] [ debugger:print-error 1 system:exit ] continuat ions:recover ] 1 11c008b 66382d4 init:do-init-hooks f 11c15d3 63a17f4 [ [ 32 random:random-bits ] random:with-system-random random.mersenne-twister: random:random-generator namespaces:set-global ] 1 152461b 64b0dd4 [ kernel:swap namespaces.private:>n kernel:call namespaces.private:ndrop ] 2 1bfc8bb 60be414 random.private:random-integer f 1460cd3 64ad674 windows-rng=>random-bytes* f 134f65b 64adbd4 continuations:rethrow f 1374f03 6287c14 [ threads:self threads:error-in-thread threads:stop ] 1 11c459b 6638374 error-in-thread/tuple-dispatch-engine f 1406e9b 6492734 READY