20200122, 21:17  #474 
"Daniel Jackson"
May 2011
14285714285714285714
648_{10} Posts 
Bug, or extra difficult C32?
Code:
[redacted]>yafu 35189596991651349423592303646371 01/22/20 16:09:52 v1.35beta @ PC, System/Build Info: Using GMPECM 7.0.4, Powered by GMP 6.1.2 detected Intel(R) Core(TM) i57200U CPU @ 2.50GHz detected L1 = 32768 bytes, L2 = 3145728 bytes, CL = 64 bytes measured cpu frequency ~= 2713.790970 using 1 random witnesses for RabinMiller PRP checks =============================================================== ======= Welcome to YAFU (Yet Another Factoring Utility) ======= ======= bbuhrow@gmail.com ======= ======= Type help at any time, or quit to quit ======= =============================================================== cached 78498 primes. pmax = 999983 >> fac: factoring 35189596991651349423592303646371 fac: using pretesting plan: normal fac: using tune info for qs/gnfs crossover input from file = 2796044857275887821399497502568105270613421180922414012239946414416977541361 input to yafu = 35189596991651349423592303646371 input from file = 1232303098349565488323549547654987653712936781422417554389046984422399307445611657870694737242026156670443188757334873375979 input to yafu = 35189596991651349423592303646371 div: primes less than 10000 fmt: 1000000 iterations 93%rho: x^2 + 3, starting 1000 iterations on C32 rho: x^2 + 2, starting 1000 iterations on C32 rho: x^2 + 1, starting 1000 iterations on C32 fac: trivial ECM work to do... skipping to sieve method fac: QS time estimation from tune data = 0.00 sec fac: GNFS time estimation from tune data = 2.46 sec n = 35189596991651349423592303646371 (32 digits and 105 bits) ==== sieve params ==== factor base: 200 primes (max prime = 2803) large prime cutoff: 140150 (50 * pmax) sieve interval: 1 blocks of size 16384 multiplier is 1 trial factoring cutoff at 42 bits ==== sieving in progress ==== 0 relations found: 0 full + 0 from 0 partial, using 2048 polys QS elapsed time = 0.2451 seconds. rho: x^2 + 3, starting 2000 iterations on C32 rho: x^2 + 2, starting 2000 iterations on C32 rho: x^2 + 1, starting 2000 iterations on C32 rho: x^2 + 3, starting 4000 iterations on C32 rho: x^2 + 2, starting 4000 iterations on C32 rho: x^2 + 1, starting 4000 iterations on C32 rho: x^2 + 3, starting 8000 iterations on C32 rho: x^2 + 2, starting 8000 iterations on C32 rho: x^2 + 1, starting 8000 iterations on C32 rho: x^2 + 3, starting 16000 iterations on C32 rho: x^2 + 2, starting 16000 iterations on C32 rho: x^2 + 1, starting 16000 iterations on C32 rho: x^2 + 3, starting 32000 iterations on C32 rho: x^2 + 2, starting 32000 iterations on C32 rho: x^2 + 1, starting 32000 iterations on C32 rho: x^2 + 3, starting 64000 iterations on C32 rho: x^2 + 2, starting 64000 iterations on C32 rho: x^2 + 1, starting 64000 iterations on C32 rho: x^2 + 3, starting 128000 iterations on C32 rho: x^2 + 2, starting 128000 iterations on C32 rho: found prp16 factor = 4500717012380129 pretesting / qs ratio was 0.01 Total factoring time = 33.6523 seconds ***factors found*** P16 = 4500717012380129 P16 = 7818664647178499 ans = 1 Number is from this Aliquot sequence. I noticed that YAFU was getting stuck, so I ran it by itself, and got the above output. Last fiddled with by Stargate38 on 20200122 at 21:33 Reason: fix link 
20200122, 21:54  #475  
"Ben"
Feb 2007
2^{2}·23·37 Posts 
Quote:
I can confirm that it doesn't work in the current wip version of yafu. Looks like it fails both the tiny_siqs and smallmpqs routines. Once it fails like this, aliqueit goes into an infinite loop of increasing rho until it succeeds, which is why it took so long. I will look into it. 

20200215, 14:55  #476 
Nov 2008
2·3^{3}·43 Posts 
Don't think this one's turned up before:
Code:
02/15/20 06:53:28 v1.35beta @ BLACKBOX2, 02/15/20 06:53:28 v1.35beta @ BLACKBOX2, **************************** 02/15/20 06:53:28 v1.35beta @ BLACKBOX2, Starting factorization of 283490451127452436661826524180114011280898553856966902146606889753248396992859405461 02/15/20 06:53:28 v1.35beta @ BLACKBOX2, using pretesting plan: custom 02/15/20 06:53:28 v1.35beta @ BLACKBOX2, custom pretest ratio is: 0.3200 02/15/20 06:53:28 v1.35beta @ BLACKBOX2, using tune info for qs/gnfs crossover 02/15/20 06:53:28 v1.35beta @ BLACKBOX2, **************************** 02/15/20 06:53:28 v1.35beta @ BLACKBOX2, rho: x^2 + 3, starting 1000 iterations on C84 02/15/20 06:53:28 v1.35beta @ BLACKBOX2, rho: x^2 + 2, starting 1000 iterations on C84 02/15/20 06:53:28 v1.35beta @ BLACKBOX2, rho: x^2 + 1, starting 1000 iterations on C84 02/15/20 06:53:28 v1.35beta @ BLACKBOX2, pm1: starting B1 = 150K, B2 = gmpecm default on C84 02/15/20 06:53:28 v1.35beta @ BLACKBOX2, current ECM pretesting depth: 0.00 02/15/20 06:53:28 v1.35beta @ BLACKBOX2, scheduled 30 curves at B1=2000 toward target pretesting depth of 26.88 02/15/20 06:53:29 v1.35beta @ BLACKBOX2, Finished 30 curves using Lenstra ECM method on C84 input, B1=2k, B2=gmpecm default 02/15/20 06:53:29 v1.35beta @ BLACKBOX2, current ECM pretesting depth: 15.18 02/15/20 06:53:29 v1.35beta @ BLACKBOX2, scheduled 74 curves at B1=11000 toward target pretesting depth of 26.88 02/15/20 06:53:30 v1.35beta @ BLACKBOX2, Finished 74 curves using Lenstra ECM method on C84 input, B1=11k, B2=gmpecm default 02/15/20 06:53:30 v1.35beta @ BLACKBOX2, current ECM pretesting depth: 20.24 02/15/20 06:53:30 v1.35beta @ BLACKBOX2, scheduled 214 curves at B1=50000 toward target pretesting depth of 26.88 02/15/20 06:53:41 v1.35beta @ BLACKBOX2, Finished 214 curves using Lenstra ECM method on C84 input, B1=50k, B2=gmpecm default 02/15/20 06:53:41 v1.35beta @ BLACKBOX2, pm1: starting B1 = 3750K, B2 = gmpecm default on C84 02/15/20 06:53:42 v1.35beta @ BLACKBOX2, current ECM pretesting depth: 25.33 02/15/20 06:53:42 v1.35beta @ BLACKBOX2, scheduled 134 curves at B1=250000 toward target pretesting depth of 26.88 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, Finished 134 curves using Lenstra ECM method on C84 input, B1=250k, B2=gmpecm default 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, final ECM pretested depth: 26.89 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, scheduler: switching to sieve method 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, starting SIQS on c84: 283490451127452436661826524180114011280898553856966902146606889753248396992859405461 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, random seeds: 2046990139, 898121269 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, ==== sieve params ==== 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, n = 85 digits, 280 bits 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, factor base: 58144 primes (max prime = 1534151) 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, single large prime cutoff: 145744345 (95 * pmax) 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, double large prime range from 2353619290801 to 494840324470507 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, allocating 7 large prime slices of factor base 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, buckets hold 2048 elements 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, large prime hashtables have 1376256 bytes 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, using SSE4.1 enabled 32k sieve core 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, sieve interval: 12 blocks of size 32768 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, polynomial A has ~ 11 factors 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, using multiplier of 5 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, using SPV correction of 20 bits, starting at offset 34 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, trial factoring cutoff at 90 bits 02/15/20 06:54:05 v1.35beta @ BLACKBOX2, ==== sieving started ( 4 threads) ==== 02/15/20 06:55:52 v1.35beta @ BLACKBOX2, trial division touched 16004277 sieve locations out of 130513895424 02/15/20 06:55:52 v1.35beta @ BLACKBOX2, total reports = 16004277, total surviving reports = 7342494 02/15/20 06:55:52 v1.35beta @ BLACKBOX2, total blocks sieved = 3982968, avg surviving reports per block = 1.84 02/15/20 06:55:52 v1.35beta @ BLACKBOX2, brentrho: 12 failures, 385696 attempts, 4588609 outside range, 2123784 prp, 365793 useful 02/15/20 06:55:52 v1.35beta @ BLACKBOX2, 59371 relations found: 19817 full + 39554 from 590381 partial, using 165957 polys (442 A polys) 02/15/20 06:55:52 v1.35beta @ BLACKBOX2, on average, sieving found 3.68 rels/poly and 5685.53 rels/sec 02/15/20 06:55:52 v1.35beta @ BLACKBOX2, trial division touched 16004277 sieve locations out of 130513895424 02/15/20 06:55:52 v1.35beta @ BLACKBOX2, ==== post processing stage (msieve1.38) ==== 02/15/20 06:55:52 v1.35beta @ BLACKBOX2, QS elapsed time = 107.3248 seconds. 02/15/20 06:55:53 v1.35beta @ BLACKBOX2, begin singleton removal with 610198 relations 02/15/20 06:55:53 v1.35beta @ BLACKBOX2, reduce to 126503 relations in 10 passes 02/15/20 06:55:53 v1.35beta @ BLACKBOX2, failed to read relation 1721 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, recovered 116386 relations 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, recovered 81331 polynomials 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, attempting to build 49759 cycles 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, found 49759 cycles from 116386 relations in 4 passes 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, distribution of cycle lengths: 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, length 1 : 18164 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, length 2 : 12283 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, length 3 : 8768 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, length 4 : 5048 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, length 5 : 2813 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, length 6 : 1435 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, length 7 : 685 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, length 9+: 563 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, largest cycle: 14 relations 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, matrix is 58144 x 49759 (10.2 MB) with weight 2267696 (45.57/col) 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, sparse part has weight 2267696 (45.57/col) 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, filtering completed in 2 passes 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, matrix is 46827 x 39699 (8.7 MB) with weight 1968324 (49.58/col) 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, sparse part has weight 1968324 (49.58/col) 02/15/20 06:55:54 v1.35beta @ BLACKBOX2, matrix must have more columns than rows 02/15/20 06:55:56 v1.35beta @ BLACKBOX2, begin singleton removal with 610198 relations 02/15/20 06:55:56 v1.35beta @ BLACKBOX2, reduce to 126504 relations in 10 passes 02/15/20 06:55:56 v1.35beta @ BLACKBOX2, failed to read relation 1721 02/15/20 06:55:56 v1.35beta @ BLACKBOX2, recovered 116386 relations 02/15/20 06:55:56 v1.35beta @ BLACKBOX2, recovered 81331 polynomials 02/15/20 06:55:56 v1.35beta @ BLACKBOX2, attempting to build 49759 cycles 02/15/20 06:55:57 v1.35beta @ BLACKBOX2, found 49759 cycles from 116386 relations in 4 passes 02/15/20 06:55:57 v1.35beta @ BLACKBOX2, distribution of cycle lengths: 02/15/20 06:55:57 v1.35beta @ BLACKBOX2, length 1 : 18164 02/15/20 06:55:57 v1.35beta @ BLACKBOX2, length 2 : 12283 02/15/20 06:55:57 v1.35beta @ BLACKBOX2, length 3 : 8768 02/15/20 06:55:57 v1.35beta @ BLACKBOX2, length 4 : 5048 02/15/20 06:55:57 v1.35beta @ BLACKBOX2, length 5 : 2813 02/15/20 06:55:57 v1.35beta @ BLACKBOX2, length 6 : 1435 02/15/20 06:55:57 v1.35beta @ BLACKBOX2, length 7 : 685 02/15/20 06:55:57 v1.35beta @ BLACKBOX2, length 9+: 563 02/15/20 06:55:57 v1.35beta @ BLACKBOX2, largest cycle: 14 relations 02/15/20 06:55:57 v1.35beta @ BLACKBOX2, matrix is 58144 x 49759 (10.2 MB) with weight 2267696 (45.57/col) 02/15/20 06:55:57 v1.35beta @ BLACKBOX2, sparse part has weight 2267696 (45.57/col) 02/15/20 06:55:57 v1.35beta @ BLACKBOX2, filtering completed in 2 passes 02/15/20 06:55:57 v1.35beta @ BLACKBOX2, matrix is 46827 x 39699 (8.7 MB) with weight 1968324 (49.58/col) 02/15/20 06:55:57 v1.35beta @ BLACKBOX2, sparse part has weight 1968324 (49.58/col) 02/15/20 06:55:57 v1.35beta @ BLACKBOX2, matrix must have more columns than rows 02/15/20 06:55:58 v1.35beta @ BLACKBOX2, begin singleton removal with 610198 relations 02/15/20 06:55:58 v1.35beta @ BLACKBOX2, reduce to 126504 relations in 10 passes 02/15/20 06:55:58 v1.35beta @ BLACKBOX2, failed to read relation 1721 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, recovered 116386 relations 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, recovered 81331 polynomials 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, attempting to build 49759 cycles 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, found 49759 cycles from 116386 relations in 4 passes 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, distribution of cycle lengths: 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, length 1 : 18164 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, length 2 : 12283 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, length 3 : 8768 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, length 4 : 5048 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, length 5 : 2813 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, length 6 : 1435 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, length 7 : 685 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, length 9+: 563 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, largest cycle: 14 relations 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, matrix is 58144 x 49759 (10.2 MB) with weight 2267696 (45.57/col) 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, sparse part has weight 2267696 (45.57/col) 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, filtering completed in 2 passes 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, matrix is 46827 x 39699 (8.7 MB) with weight 1968324 (49.58/col) 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, sparse part has weight 1968324 (49.58/col) 02/15/20 06:55:59 v1.35beta @ BLACKBOX2, matrix must have more columns than rows 02/15/20 06:56:01 v1.35beta @ BLACKBOX2, begin singleton removal with 610198 relations 02/15/20 06:56:01 v1.35beta @ BLACKBOX2, reduce to 126504 relations in 10 passes 02/15/20 06:56:01 v1.35beta @ BLACKBOX2, failed to read relation 1721 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, recovered 116386 relations 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, recovered 81331 polynomials 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, attempting to build 49759 cycles 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, found 49759 cycles from 116386 relations in 4 passes 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, distribution of cycle lengths: 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, length 1 : 18164 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, length 2 : 12283 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, length 3 : 8768 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, length 4 : 5048 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, length 5 : 2813 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, length 6 : 1435 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, length 7 : 685 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, length 9+: 563 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, largest cycle: 14 relations 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, matrix is 58144 x 49759 (10.2 MB) with weight 2267696 (45.57/col) 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, sparse part has weight 2267696 (45.57/col) 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, filtering completed in 2 passes 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, matrix is 46827 x 39699 (8.7 MB) with weight 1968324 (49.58/col) 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, sparse part has weight 1968324 (49.58/col) 02/15/20 06:56:02 v1.35beta @ BLACKBOX2, matrix must have more columns than rows 02/15/20 06:56:04 v1.35beta @ BLACKBOX2, begin singleton removal with 610198 relations 02/15/20 06:56:04 v1.35beta @ BLACKBOX2, reduce to 126504 relations in 10 passes 02/15/20 06:56:04 v1.35beta @ BLACKBOX2, failed to read relation 1721 02/15/20 06:56:04 v1.35beta @ BLACKBOX2, recovered 116386 relations 02/15/20 06:56:04 v1.35beta @ BLACKBOX2, recovered 81331 polynomials 02/15/20 06:56:05 v1.35beta @ BLACKBOX2, attempting to build 49759 cycles 02/15/20 06:56:05 v1.35beta @ BLACKBOX2, found 49759 cycles from 116386 relations in 4 passes 02/15/20 06:56:05 v1.35beta @ BLACKBOX2, distribution of cycle lengths: 02/15/20 06:56:05 v1.35beta @ BLACKBOX2, length 1 : 18164 02/15/20 06:56:05 v1.35beta @ BLACKBOX2, length 2 : 12283 02/15/20 06:56:05 v1.35beta @ BLACKBOX2, length 3 : 8768 02/15/20 06:56:05 v1.35beta @ BLACKBOX2, length 4 : 5048 02/15/20 06:56:05 v1.35beta @ BLACKBOX2, length 5 : 2813 02/15/20 06:56:05 v1.35beta @ BLACKBOX2, length 6 : 1435 02/15/20 06:56:05 v1.35beta @ BLACKBOX2, length 7 : 685 02/15/20 06:56:05 v1.35beta @ BLACKBOX2, length 9+: 563 02/15/20 06:56:05 v1.35beta @ BLACKBOX2, largest cycle: 14 relations 02/15/20 06:56:05 v1.35beta @ BLACKBOX2, matrix is 58144 x 49759 (10.2 MB) with weight 2267696 (45.57/col) 02/15/20 06:56:05 v1.35beta @ BLACKBOX2, sparse part has weight 2267696 (45.57/col) 02/15/20 06:56:05 v1.35beta @ BLACKBOX2, filtering completed in 2 passes 02/15/20 06:56:05 v1.35beta @ BLACKBOX2, matrix is 46827 x 39699 (8.7 MB) with weight 1968324 (49.58/col) 02/15/20 06:56:05 v1.35beta @ BLACKBOX2, sparse part has weight 1968324 (49.58/col) 02/15/20 06:56:05 v1.35beta @ BLACKBOX2, matrix must have more columns than rows 02/15/20 06:56:06 v1.35beta @ BLACKBOX2, begin singleton removal with 610198 relations 02/15/20 06:56:06 v1.35beta @ BLACKBOX2, reduce to 126504 relations in 10 passes 02/15/20 06:56:06 v1.35beta @ BLACKBOX2, failed to read relation 1721 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, recovered 116386 relations 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, recovered 81331 polynomials 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, attempting to build 49759 cycles 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, found 49759 cycles from 116386 relations in 4 passes 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, distribution of cycle lengths: 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, length 1 : 18164 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, length 2 : 12283 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, length 3 : 8768 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, length 4 : 5048 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, length 5 : 2813 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, length 6 : 1435 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, length 7 : 685 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, length 9+: 563 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, largest cycle: 14 relations 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, matrix is 58144 x 49759 (10.2 MB) with weight 2267696 (45.57/col) 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, sparse part has weight 2267696 (45.57/col) 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, filtering completed in 2 passes 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, matrix is 46827 x 39699 (8.7 MB) with weight 1968324 (49.58/col) 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, sparse part has weight 1968324 (49.58/col) 02/15/20 06:56:07 v1.35beta @ BLACKBOX2, matrix must have more columns than rows 02/15/20 06:56:09 v1.35beta @ BLACKBOX2, begin singleton removal with 610198 relations 02/15/20 06:56:09 v1.35beta @ BLACKBOX2, reduce to 126504 relations in 10 passes 02/15/20 06:56:09 v1.35beta @ BLACKBOX2, failed to read relation 1721 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, recovered 116386 relations 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, recovered 81331 polynomials 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, attempting to build 49759 cycles 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, found 49759 cycles from 116386 relations in 4 passes 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, distribution of cycle lengths: 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, length 1 : 18164 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, length 2 : 12283 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, length 3 : 8768 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, length 4 : 5048 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, length 5 : 2813 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, length 6 : 1435 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, length 7 : 685 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, length 9+: 563 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, largest cycle: 14 relations 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, matrix is 58144 x 49759 (10.2 MB) with weight 2267696 (45.57/col) 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, sparse part has weight 2267696 (45.57/col) 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, filtering completed in 2 passes 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, matrix is 46827 x 39699 (8.7 MB) with weight 1968324 (49.58/col) 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, sparse part has weight 1968324 (49.58/col) 02/15/20 06:56:10 v1.35beta @ BLACKBOX2, matrix must have more columns than rows 02/15/20 06:56:12 v1.35beta @ BLACKBOX2, begin singleton removal with 610198 relations 02/15/20 06:56:12 v1.35beta @ BLACKBOX2, reduce to 126504 relations in 10 passes 02/15/20 06:56:12 v1.35beta @ BLACKBOX2, failed to read relation 1721 02/15/20 06:56:12 v1.35beta @ BLACKBOX2, recovered 116386 relations 02/15/20 06:56:12 v1.35beta @ BLACKBOX2, recovered 81331 polynomials 02/15/20 06:56:13 v1.35beta @ BLACKBOX2, attempting to build 49759 cycles 02/15/20 06:56:13 v1.35beta @ BLACKBOX2, found 49759 cycles from 116386 relations in 4 passes 02/15/20 06:56:13 v1.35beta @ BLACKBOX2, distribution of cycle lengths: 02/15/20 06:56:13 v1.35beta @ BLACKBOX2, length 1 : 18164 02/15/20 06:56:13 v1.35beta @ BLACKBOX2, length 2 : 12283 02/15/20 06:56:13 v1.35beta @ BLACKBOX2, length 3 : 8768 02/15/20 06:56:13 v1.35beta @ BLACKBOX2, length 4 : 5048 02/15/20 06:56:13 v1.35beta @ BLACKBOX2, length 5 : 2813 02/15/20 06:56:13 v1.35beta @ BLACKBOX2, length 6 : 1435 02/15/20 06:56:13 v1.35beta @ BLACKBOX2, length 7 : 685 02/15/20 06:56:13 v1.35beta @ BLACKBOX2, length 9+: 563 02/15/20 06:56:13 v1.35beta @ BLACKBOX2, largest cycle: 14 relations 02/15/20 06:56:13 v1.35beta @ BLACKBOX2, matrix is 58144 x 49759 (10.2 MB) with weight 2267696 (45.57/col) 02/15/20 06:56:13 v1.35beta @ BLACKBOX2, sparse part has weight 2267696 (45.57/col) 02/15/20 06:56:13 v1.35beta @ BLACKBOX2, filtering completed in 2 passes 02/15/20 06:56:13 v1.35beta @ BLACKBOX2, matrix is 46827 x 39699 (8.7 MB) with weight 1968324 (49.58/col) 02/15/20 06:56:13 v1.35beta @ BLACKBOX2, sparse part has weight 1968324 (49.58/col) 02/15/20 06:56:13 v1.35beta @ BLACKBOX2, matrix must have more columns than rows 02/15/20 06:56:14 v1.35beta @ BLACKBOX2, begin singleton removal with 610198 relations 02/15/20 06:56:15 v1.35beta @ BLACKBOX2, reduce to 126504 relations in 10 passes 02/15/20 06:56:15 v1.35beta @ BLACKBOX2, failed to read relation 1721 02/15/20 06:56:15 v1.35beta @ BLACKBOX2, recovered 116386 relations 02/15/20 06:56:15 v1.35beta @ BLACKBOX2, recovered 81331 polynomials 02/15/20 06:56:15 v1.35beta @ BLACKBOX2, attempting to build 49759 cycles 02/15/20 06:56:15 v1.35beta @ BLACKBOX2, found 49759 cycles from 116386 relations in 4 passes 02/15/20 06:56:15 v1.35beta @ BLACKBOX2, distribution of cycle lengths: 02/15/20 06:56:15 v1.35beta @ BLACKBOX2, length 1 : 18164 02/15/20 06:56:15 v1.35beta @ BLACKBOX2, length 2 : 12283 02/15/20 06:56:15 v1.35beta @ BLACKBOX2, length 3 : 8768 02/15/20 06:56:15 v1.35beta @ BLACKBOX2, length 4 : 5048 02/15/20 06:56:15 v1.35beta @ BLACKBOX2, length 5 : 2813 02/15/20 06:56:15 v1.35beta @ BLACKBOX2, length 6 : 1435 02/15/20 06:56:15 v1.35beta @ BLACKBOX2, length 7 : 685 02/15/20 06:56:15 v1.35beta @ BLACKBOX2, length 9+: 563 02/15/20 06:56:15 v1.35beta @ BLACKBOX2, largest cycle: 14 relations 02/15/20 06:56:15 v1.35beta @ BLACKBOX2, matrix is 58144 x 49759 (10.2 MB) with weight 2267696 (45.57/col) 02/15/20 06:56:15 v1.35 
20210128, 17:11  #477 
"Daniel Jackson"
May 2011
14285714285714285714
1010001000_{2} Posts 
Strange bug when trying to factor a specialform number of 584 digits (I'm only planning on running ECM to t30 or so, hence the "pretest" flag, and I usually Ctrl+C to stop it at said point):
Code:
C:\Numbers\YAFUr373wipwin64core2>yafu "229990229272748477837597264493410491479373314885817486162229843087955153410208128489569930127250104833023207305103794285050644863404342542318773522601981048563852416588117586541965733124901738269^3+1" pretest 01/28/21 11:47:59 v1.35beta @ LAPTOPONGC39AN, System/Build Info: Using GMPECM 7.0.4, Powered by GMP 6.1.2 detected Intel(R) Core(TM) i59300H CPU @ 2.40GHz detected L1 = 32768 bytes, L2 = 8388608 bytes, CL = 64 bytes measured cpu frequency ~= 2399.484880 using 1 random witnesses for RabinMiller PRP checks =============================================================== ======= Welcome to YAFU (Yet Another Factoring Utility) ======= ======= bbuhrow@gmail.com ======= ======= Type help at any time, or quit to quit ======= =============================================================== cached 78498 primes. pmax = 999983 >> fac: factoring 12165449451456557256033485712637681555768100458706997780315565491278872139990857282260917654227324845359554262810584273601706633425910583583502712742197846272361309801963009983059965124068781411036221020413296729623914988451184332908886553010080292857159462746257873678346552888062340317962801077466269102293568360954257328914617374931175816696569765714183334953776080658930163888177790478881721340396025483110240699276975399266544788795449454320444308393016747565600614610458789654512659836823019655477010273092305823198351292212894597255321708336001563103610703583990056775717719110 fac: using pretesting plan: normal fac: using tune info for qs/gnfs crossover input from file = 424028707503853115779226080929589750136190229673159970827756969 input to yafu = 12165449451456557256033485712637681555768100458706997780315565491278872139990857282260917654227324845359554262810584273601706633425910583583502712742197846272361309801963009983059965124068781411036221020413296729623914988451184332908886553010080292857159462746257873678346552888062340317962801077466269102293568360954257328914617374931175816696569765714183334953776080658930163888177790478881721340396025483110240699276975399266544788795449454320444308393016747565600614610458789654512659836823019655477010273092305823198351292212894597255321708336001563103610703583990056775717719110 input from file = 3647412765777930029748865794183394372567484610726598126960211077749358821442427233931397420173459354592216437893 input to yafu = 12165449451456557256033485712637681555768100458706997780315565491278872139990857282260917654227324845359554262810584273601706633425910583583502712742197846272361309801963009983059965124068781411036221020413296729623914988451184332908886553010080292857159462746257873678346552888062340317962801077466269102293568360954257328914617374931175816696569765714183334953776080658930163888177790478881721340396025483110240699276975399266544788795449454320444308393016747565600614610458789654512659836823019655477010273092305823198351292212894597255321708336001563103610703583990056775717719110 div: primes less than 10000 div: found prime factor = 2 div: found prime factor = 5 div: found prime factor = 7 div: found prime factor = 31 fmt: 1000000 iterations 98%rho: x^2 + 3, starting 1000 iterations on C580 rho: found prp6 factor = 932983 rho: x^2 + 3, starting 1000 iterations on C574 rho: found prp9 factor = 391912817 rho: x^2 + 3, starting 1000 iterations on C566 rho: x^2 + 2, starting 1000 iterations on C566 rho: x^2 + 1, starting 1000 iterations on C566 nfs: searching for brent special forms... nfs: checking a*b^x +/ c for 32 <= x <= 1478 <snip> nfs: checking x^6 +/ 1 nfs: checking x^5 +/ 1 nfs: checking x^4 +/ 1 nfs: checking x^3 +/ 1 nfs: input divides 229990229272748477837597264493410491479373314885817486162229843087955153410208128489569930127250104833023207305103794285050644863404342542318773522601981048563852416588117586541965733124901738269^3 + 1 gen: found primitive cofactor < input number: gen: 52895505560931410828932571503952382014144188594641893715898157094158399197164845103067756714151674015438849496668809443629446975030563500621060461529313473903122035392247216653032137753749968778904630988864359936834108330527982752421431231705016191762368230758118896381706555784885168216551188806522082784895614760642025117268479564212403537107374160588512868960292964923950843492877378093 nfs: degree 4 difficulty = 388.72, degree 6 difficulty = 388.72 nfs: choosing degree 6 Code:
01/28/21 11:47:59 v1.35beta @ LAPTOPONGC39AN, **************************** 01/28/21 11:47:59 v1.35beta @ LAPTOPONGC39AN, Starting factorization of 12165449451456557256033485712637681555768100458706997780315565491278872139990857282260917654227324845359554262810584273601706633425910583583502712742197846272361309801963009983059965124068781411036221020413296729623914988451184332908886553010080292857159462746257873678346552888062340317962801077466269102293568360954257328914617374931175816696569765714183334953776080658930163888177790478881721340396025483110240699276975399266544788795449454320444308393016747565600614610458789654512659836823019655477010273092305823198351292212894597255321708336001563103610703583990056775717719110 01/28/21 11:47:59 v1.35beta @ LAPTOPONGC39AN, using pretesting plan: normal 01/28/21 11:47:59 v1.35beta @ LAPTOPONGC39AN, using tune info for qs/gnfs crossover 01/28/21 11:47:59 v1.35beta @ LAPTOPONGC39AN, **************************** 01/28/21 11:47:59 v1.35beta @ LAPTOPONGC39AN, div: found prime factor = 2 01/28/21 11:47:59 v1.35beta @ LAPTOPONGC39AN, div: found prime factor = 5 01/28/21 11:47:59 v1.35beta @ LAPTOPONGC39AN, div: found prime factor = 7 01/28/21 11:47:59 v1.35beta @ LAPTOPONGC39AN, div: found prime factor = 31 01/28/21 11:47:59 v1.35beta @ LAPTOPONGC39AN, rho: x^2 + 3, starting 1000 iterations on C580 01/28/21 11:47:59 v1.35beta @ LAPTOPONGC39AN, prp6 = 932983 01/28/21 11:47:59 v1.35beta @ LAPTOPONGC39AN, rho: x^2 + 3, starting 1000 iterations on C574 01/28/21 11:47:59 v1.35beta @ LAPTOPONGC39AN, prp9 = 391912817 01/28/21 11:47:59 v1.35beta @ LAPTOPONGC39AN, rho: x^2 + 3, starting 1000 iterations on C566 01/28/21 11:48:00 v1.35beta @ LAPTOPONGC39AN, rho: x^2 + 2, starting 1000 iterations on C566 01/28/21 11:48:01 v1.35beta @ LAPTOPONGC39AN, rho: x^2 + 1, starting 1000 iterations on C566 01/28/21 11:48:03 v1.35beta @ LAPTOPONGC39AN, nfs: input divides 229990229272748477837597264493410491479373314885817486162229843087955153410208128489569930127250104833023207305103794285050644863404342542318773522601981048563852416588117586541965733124901738269^3 + 1 01/28/21 11:48:03 v1.35beta @ LAPTOPONGC39AN, nfs: using supplied cofactor: 15332226537994512450938444661307040424151430984743334677227694191364859603484877020860786888004993918097116754619545324432857225034052669511730509594267145040982480680936978918183795581943714558293971497926587434132046924612940810483936793125932882660206645965387477830574936978246005812679299632352225307791361634870353876215600180822969979170060868661956355877568691833141055679074620113644501939794545241351047066974494410225688979117136374764075032890003167144208391606627871210750435142278904744583122428962606223011067113650062892716979223035768760259481502953 01/28/21 11:48:03 v1.35beta @ LAPTOPONGC39AN, nfs: input divides 229990229272748477837597264493410491479373314885817486162229843087955153410208128489569930127250104833023207305103794285050644863404342542318773522601981048563852416588117586541965733124901738269^3 + 1 01/28/21 11:48:03 v1.35beta @ LAPTOPONGC39AN, nfs: using supplied cofactor: 15332226537994512450938444661307040424151430984743334677227694191364859603484877020860786888004993918097116754619545324432857225034052669511730509594267145040982480680936978918183795581943714558293971497926587434132046924612940810483936793125932882660206645965387477830574936978246005812679299632352225307791361634870353876215600180822969979170060868661956355877568691833141055679074620113644501939794545241351047066974494410225688979117136374764075032890003167144208391606627871210750435142278904744583122428962606223011067113650062892716979223035768760259481502953 01/28/21 11:48:03 v1.35beta @ LAPTOPONGC39AN, nfs: commencing snfs on c389 primitive factor: 52895505560931410828932571503952382014144188594641893715898157094158399197164845103067756714151674015438849496668809443629446975030563500621060461529313473903122035392247216653032137753749968778904630988864359936834108330527982752421431231705016191762368230758118896381706555784885168216551188806522082784895614760642025117268479564212403537107374160588512868960292964923950843492877378093 01/28/21 11:49:54 v1.35beta @ LAPTOPONGC39AN, Code:
Faulting application name: yafu.exe, version: 0.0.0.0, time stamp: 0x5b19a85c Faulting module name: yafu.exe, version: 0.0.0.0, time stamp: 0x5b19a85c Exception code: 0xc0000005 Fault offset: 0x00000000000ea1cc Faulting process id: 0x96c Faulting application start time: 0x01d6f59556173cd7 Faulting application path: C:\Numbers\YAFUr373wipwin64core2\yafu.exe Faulting module path: C:\Numbers\YAFUr373wipwin64core2\yafu.exe Report Id: df43e7a4ee80426d8748b402c668c537 Faulting package full name: Faulting packagerelative application ID: Code:
yafu "factor((229990229272748477837597264493410491479373314885817486162229843087955153410208128489569930127250104833023207305103794285050644863404342542318773522601981048563852416588117586541965733124901738269^3+1)/2)" pretest Last fiddled with by Stargate38 on 20210128 at 17:13 
20210223, 14:30  #478 
Feb 2021
3 Posts 
Does yafu determine its home directory properly?
When running yafu in its home directory, `help` works fine:
Code:
C:\Program Files>pushd yafu1.34 C:\Program Files\yafu1.34>%yafu% 02/23/21 17:25:09 v1.34.5 @ BLACKPLATO, System/Build Info: Using GMPECM 6.3, Powered by GMP 5.1.1 detected Intel(R) Core(TM) i33110M CPU @ 2.40GHz detected L1 = 32768 bytes, L2 = 3145728 bytes, CL = 64 bytes measured cpu frequency ~= 2388.511000 using 20 random witnesses for RabinMiller PRP checks =============================================================== ======= Welcome to YAFU (Yet Another Factoring Utility) ======= ======= bbuhrow@gmail.com ======= ======= Type help at any time, or quit to quit ======= =============================================================== cached 78498 primes. pmax = 999983 >> help primes searching for help on 'primes' usage: primes(expression1,expression2,[expression3]) description: print or count the primes in a range between the first two parameters. The third parameter should evaluate to 1 if the range is to only be counted or 0 if printed. If the PRIMES_TO_FILE environment variable is set to nonzero, the primes will be output to a file called primes.dat, in the same directory as the executable. If the PRIMES_TO_SCREEN environement variable is set to nonzero, the primes will be printed to the screen. By default, PRIMES_TO_FILE and PRIMES_TO_SCREEN are inactive (equal to zero). The pfile and pscreen command line flags enable the same behavior. It could take a very long time to print if the range is large. If expression 3 is omitted, the behavior defaults to a count of primes. expression 1 and expression 2 should both evaluate to numbers less than 4e18. The condition expression 2 > expression 1 is also enforced. >> Code:
C:\Windows\system32>yafux64.exe 02/23/21 17:00:14 v1.34.5 @ BLACKPLATO, System/Build Info: Using GMPECM 6.3, Powered by GMP 5.1.1 detected Intel(R) Core(TM) i33110M CPU @ 2.40GHz detected L1 = 32768 bytes, L2 = 3145728 bytes, CL = 64 bytes measured cpu frequency ~= 2393.309160 using 20 random witnesses for RabinMiller PRP checks =============================================================== ======= Welcome to YAFU (Yet Another Factoring Utility) ======= ======= bbuhrow@gmail.com ======= ======= Type help at any time, or quit to quit ======= =============================================================== cached 78498 primes. pmax = 999983 >> help fopen error: No such file or directory documentation file not found >> quit 
20210224, 00:07  #479  
"Alexander"
Nov 2008
The Alamo City
2^{6}×3^{2} Posts 
Quote:
Besides, yafu isn't really meant to be installed globally. You should probably put it somewhere under your User folder and run it from there. Last fiddled with by Happy5214 on 20210224 at 00:10 Reason: Put it in your user folder. 

20210224, 02:04  #480  
Romulan Interpreter
Jun 2011
Thailand
2^{5}·293 Posts 
Quote:
Last fiddled with by LaurV on 20210224 at 02:06 

20210224, 23:29  #481  
Feb 2021
3 Posts 
Does yafu determine its home directory properly?
Quote:
yafu should not expect that its home directory is the current directory. Instead, yafu should determine its home directory either from ARGV[0], i.e. zero item of the command line, or from the properties of the running yafu process. It is the standard behavior of any program, file system, shell and OS. Do not confuse the home directory of yafu with the current directory. They can be different in common case. 

20210225, 01:02  #482  
"Alexander"
Nov 2008
The Alamo City
2^{6}×3^{2} Posts 
Except your case isn't the common case for this particular program, for reasons LaurV and I have explained. yafu simply isn't meant to be installed and used globally. To quote the README:
Quote:


20210225, 18:30  #483  
Feb 2021
3 Posts 
Does yafu determine its home directory properly?
Quote:
"Except your case"  it is not my case as this is the case created by the developer of yafu. The basics of operating systems should be fulfilled by a software developer to respect users and their convenience provided by OS features like the concept of current directory. Quote:
By this concept, there is no limit to the number of home directories. This means that the same software can be installed many times to different directories on the same host. Usually, such a limit is set by the software itself, i.e. it is up to the implementation level to decide on this limit. Such multihomed architecture is often used to work with different versions or layers (dev, test, prod, etc.). Thus, the home directory can be "C:\Program Files\yafu", "C:\prg\yafu", "C:\tmp\yafu" and so force, whatever location. Their names are not related to OS specific installation procedures and services like Windows Installer and the registration of installation package. And hence, the use of the "C:\Program Files" does not mean the use of Windows Installer. On my system, the purpose of "C:\Program Files" is to host the home directories of any programs. On another system of mine, "C:\prg" has this purpose and there are no "C:\Program Files" or "C:\Program Files (x86)" at all. The described concept of installation means that the user installs yafu to "whatever location" by "putting the binary" into it. And it becomes the home directory of that yafu copy, not yafu itself, i.e no "global usage" is assumed. Hence, you and the author of yafu readme don't understand the concept of installation process, instruct the user on the installation process in yafu readme, but don't consider it as is, and then say "yafu simply isn't meant to be installed". In short, you are contradicting yourself. 3. "Used globally" is something undefined: by the construction of any OS and file system, the program is started via the full file path that points to the file with the code of that program. Otherwise, OS can not identify the file containing the code of a program. The file system provides many ways to address files: absolute paths and relative paths. The current directory is the mean related to relative paths to avoid entering full paths every time. Hence, the current directory is just a state and is contained by some variable in the shell or parent process. When the shell starts the program pointed out just by its file name, e.g. "yafux64.exe", the shell or OS concatenates the current directory (associated with the shell) with the file name to get the absolute file path of the program file as required or provided by the OS API like CreateProsess, system or alike. The current directory is the beginning of coordinates when pointing out files just by their names or relative paths. Such tools as ProcessExplorer and ProcessHaker display working directories of processes as well as full file names of exectuables. One should always remember that working directories could be or not the current directories when processes were created. This means that yafu, as any other program of such kind, is always started via its full file name. Hence, there is no thing that you consider as local or global because any local thing is defined relatively to the global thing, e.g. local file system or remote file system, relative (local) path or absolute (global) path. Thus, "used globally" is nonsense. Quote:
5. By yafu specification, the way by which yafu addresses its files is not related to the current directory at all: the instruction just says where yafu generates files and reads them from. There are many correct ways to implement it, excluding changing the current directory or assuming it as its home directory set by the user. Quote:
"it's not the intended modus operandi" is nonsense as the definition of intended behavior expressed in yafu README uses its home directory rather than the current directory of the shell, which is the user's zone of control. The bug is not the edge case at all, by definition of both. yafu has to use the current directory and its home directory by their purpose instead of forcing users to setup the current directory to the yafu's home directory every time. Otherwise, yafu breaks a lot of ways of accessing and calling yafu, which OS provides as features of environment for all processes. The correct use of the current directory and the home directory is related to the implementation level and thus does not change the specification of yafu (where it generates files and so on). 7. To sum up, you ignores the basics of operating systems and file systems. And thus, you interpret my words incorrectly, leading to wrong inferences considered above. The program can change its associated current directory to its home directory or anything else. This is how any program should behave to avoid forcing users to do this action for it. However, it is much smarter to calculate paths of internal files without changing the current directory to output files in a standard way predefined by OS architecture. 

20210225, 18:52  #484  
"Ben"
Feb 2007
6514_{8} Posts 
Quote:
So I think I can stop reading at point 1). 

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