20230414, 03:06  #23 
"James Heinrich"
May 2004
exNorthern Ontario
41·103 Posts 
I just noticed this thread. Tried the latest v2.11 on my 7950X with a bunch of C79 from factordb.
It still has that same weird behaviour where it randomly crashes out in the middle of a factorization (e.g. during ECM or P1). 
20230417, 18:37  #24 
"Ed Hall"
Dec 2009
Adirondack Mtns
5×1,103 Posts 
I'm still having trouble with an occasional SIQS failure. To my untrained eye, it appears that YAFU is attempting to add relations, but they are not showing up:
Code:
starting SIQS on c70: 7193078225089295682426268467416399261468620513355262799015696435213249 ==== sieving in progress ( 40 threads): 13104 relations needed ==== ==== Press ctrlc to abort and save state ==== 0 rels found: 0 full + 0 from 0 partial, ( 0.00 rels/sec) . . . 0 rels found: 0 full + 0 from 0 partial, ( 0.00 rels/sec) 39 rels found: 39 full + 0 from 414 partial, (1738.93 rels/sec) 70 rels found: 69 full + 1 from 784 partial, (3182.50 rels/sec) 110 rels found: 107 full + 3 from 1169 partial, (4643.33 rels/sec) . . . 13938 rels found: 6395 full + 7543 from 74638 partial, (71764.98 rels/sec) 13938 rels found: 6395 full + 7543 from 74638 partial, (71617.52 rels/sec) building matrix with 13938 columns Failed to find factors, retrying with new relation target of 13759 rebuilding graph with 81033 buffered inmemory relations 13938 rels found: 6395 full + 7543 from 74638 partial, (33662.55 rels/sec) 13938 rels found: 6395 full + 7543 from 74638 partial, (33662.16 rels/sec) . . . 13938 rels found: 6395 full + 7543 from 74638 partial, (33660.99 rels/sec) 13938 rels found: 6395 full + 7543 from 74638 partial, (33639.12 rels/sec) building matrix with 13938 columns Failed to find factors, retrying with new relation target of 14446 rebuilding graph with 81033 buffered inmemory relations 13938 rels found: 6395 full + 7543 from 74638 partial, (22160.04 rels/sec) 13938 rels found: 6395 full + 7543 from 74638 partial, (22159.86 rels/sec) . . . 13938 rels found: 6395 full + 7543 from 74638 partial, (22159.33 rels/sec) 13938 rels found: 6395 full + 7543 from 74638 partial, (22150.02 rels/sec) building matrix with 13938 columns Failed to find factors, retrying with new relation target of 15168 rebuilding graph with 81033 buffered inmemory relations 13938 rels found: 6395 full + 7543 from 74638 partial, (16462.62 rels/sec) 13938 rels found: 6395 full + 7543 from 74638 partial, (16462.51 rels/sec) . . . 13938 rels found: 6395 full + 7543 from 74638 partial, (16462.22 rels/sec) 13938 rels found: 6395 full + 7543 from 74638 partial, (16456.91 rels/sec) building matrix with 13938 columns Failed to find factors, retrying with new relation target of 15926 rebuilding graph with 81033 buffered inmemory relations 13938 rels found: 6395 full + 7543 from 74638 partial, (13137.16 rels/sec) 13938 rels found: 6395 full + 7543 from 74638 partial, (13137.10 rels/sec) . . . 13938 rels found: 6395 full + 7543 from 74638 partial, (13136.93 rels/sec) 13938 rels found: 6395 full + 7543 from 74638 partial, (13133.96 rels/sec) building matrix with 13938 columns Failed to find factors, retrying with new relation target of 16722 rebuilding graph with 81033 buffered inmemory relations SIQS elapsed time = 7.3945 seconds. ***factors found*** ***cofactor*** C70 = 7193078225089295682426268467416399261468620513355262799015696435213249 ans = 7193078225089295682426268467416399261468620513355262799015696435213249 In case it's significant, I'm using inmem=100. Thanks for all. 
20230424, 15:16  #25 
"Daniel Jackson"
May 2011
14285714285714285714
768_{10} Posts 
Both work on my end. I have inmem set to 75, but setting it to 100 doesn't change anything on my end:
Code:
C:\Numbers\yafumaster>yafu 7193078225089295682426268467416399261468620513355262799015696435213249 Applying tune_info entry for WIN64  Intel(R) Core(TM) i59300H CPU @ 2.40GHz YAFU Version 2.11 Built with Microsoft Visual Studio 1934 and Intel Compiler 2021 Using GMPECM 7.0.6dev, Powered by MPIR 3.0.0 Detected Intel(R) Core(TM) i59300H CPU @ 2.40GHz Detected L1 = 32768 bytes, L2 = 8388608 bytes, CL = 64 bytes CPU features enabled: SSE41 AVX2 BMI2 Using 1 random witness for RabinMiller PRP checks Cached 664579 primes; max prime is 9999991 Parsed yafu.ini from C:\Numbers\yafumaster =============================================================== ======= Welcome to YAFU (Yet Another Factoring Utility) ======= ======= bbuhrow@gmail.com ======= ======= Type help at any time, or quit to quit ======= =============================================================== >> fac: factoring 7193078225089295682426268467416399261468620513355262799015696435213249 fac: using pretesting plan: deep fac: using tune info for qs/gnfs crossover input from file = 14289940376691307154546806758628389794060195806106065792881584318350516542239227 input to yafu = 7193078225089295682426268467416399261468620513355262799015696435213249 input from file = 3384479355371900826446280991735537190082644628099173553719008264462809917355371900826446280991735537190082644628099173553719 input to yafu = 7193078225089295682426268467416399261468620513355262799015696435213249 div: primes less than 10000 fmt: 1000000 iterations 93%fmt: performed 22 perfect square checks rho: x^2 + 3, starting 4096 iterations on C70 rho: x^2 + 2, starting 4096 iterations on C70 rho: x^2 + 1, starting 4096 iterations on C70 pm1: starting B1 = 150K, B2 = gmpecm default on C70 pm1: Process took 0.1075 seconds. fac: setting target pretesting digits to 23.333333 fac: estimated sum of completed work is t0.000000 fac: work done at B1=2000: 0 curves, max work = 30 curves fac: 30 more curves at B1=2000 needed to get to t23.333333 ecm: 30/30 curves on C70, B1=2k, B2=gmpecm default ecm: 23/30 curves on C70, B1=2k, B2=gmpecm default fac: setting target pretesting digits to 23.333333 t15: 1.00 t20: 0.04 fac: estimated sum of completed work is t15.177725 fac: work done at B1=11000: 0 curves, max work = 74 curves fac: 74 more curves at B1=11000 needed to get to t23.333333 ecm: 74/74 curves on C70, B1=11k, B2=gmpecm default ecm: 61/74 curves on C70, B1=11k, B2=gmpecm default ecm: 40/74 curves on C70, B1=11k, B2=gmpecm default fac: setting target pretesting digits to 23.333333 t15: 7.17 t20: 1.04 t25: 0.05 fac: estimated sum of completed work is t20.242996 fac: work done at B1=50000: 0 curves, max work = 214 curves fac: 134 more curves at B1=50000 needed to get to t23.333333 ecm: 134/134 curves on C70, B1=50k, B2=gmpecm default, ETA: 0 sec ecm: 122/134 curves on C70, B1=50k, B2=gmpecm default, ETA: 1 sec fac: setting target pretesting digits to 23.333333 t15: 26.31 t20: 7.42 t25: 0.67 t30: 0.04 fac: estimated sum of completed work is t23.373837 fac: QS time estimation from tune data = 2.11 sec fac: GNFS time estimation from tune data = 272.81 sec fac: tune params predict 2.11 sec for SIQS and 272.81 sec for NFS fac: tune params scheduling SIQS work starting SIQS on c70: 7193078225089295682426268467416399261468620513355262799015696435213249 input from file = 14289940376691307154546806758628389794060195806106065792881584318350516542239227 input to yafu = 7193078225089295682426268467416399261468620513355262799015696435213249 assigning tdiv_medprimes_32k_avx2 ptr assigning tdiv_LP_avx2 ptr assigning resieve_medprimes_32k_avx2 ptr assigning med_sieveblock_32k_avx2 ptr assigning nextRoots_32k_avx2_intrin ptr fb bounds small: 1024 SPV: 27 10bit: 88 11bit: 160 12bit: 280 13bit: 528 32k div 3: 672 14bit: 960 15bit: 1760 med: 2896 large: 7456 large_x2: 13040 all: 13040 start primes SPV: 241 10bit: 1123 11bit: 2111 12bit: 4127 13bit: 8293 32k div 3: 11047 14bit: 16553 15bit: 33049 med: 57527 large: 163673 large_x2: 302587 all: 302587 ==== sieve params ==== n = 70 digits, 233 bits factor base: 13040 primes (max prime = 302587) single large prime cutoff: 25719895 (85 * pmax) double large prime range from 91558892569 to 9289045383747 DLP MFB = 1.75 allocating 4 large prime slices of factor base buckets hold 2048 elements large prime hashtables have 327680 bytes using AVX2 enabled 32k sieve core sieve interval: 5 blocks of size 32768 polynomial A has ~ 9 factors using multiplier of 1 using Q2(x) polynomials for kN mod 8 = 1 using inmemory storage, aborts will lose all progress using SPV correction of 20 bits, starting at offset 27 trial factoring cutoff at 75 bits ==== sieving in progress ( 8 threads): 13104 relations needed ==== ==== Press ctrlc to abort and save state ==== 13673 rels found: 5686 full + 7987 from 89526 partial, (30842.97 rels/sec) sieving required 26162 total polynomials (206 'A' polynomials) trial division touched 1123783 sieve locations out of 8572764160 dlpecm: 0 failures, 30208 attempts, 309273 outside range, 198574 prp, 29772 useful total reports = 1123783, total surviving reports = 603495 total blocks sieved = 261620, avg surviving reports per block = 2.31 Elapsed time: 3.0870 sec QS elapsed time = 3.0900 seconds. ==== post processing stage (msieve1.38) ==== read 95212 relations begin singleton removal with 95212 relations reduce to 23550 relations in 7 passes attempting to read and process 23550 relations recovered 23550 relations recovered 15511 polynomials attempting to build 13673 cycles found 13673 cycles from 23550 relations in 3 passes distribution of cycle lengths: length 1 : 5686 length 2 : 4919 length 3 : 2013 length 4 : 699 length 5 : 248 length 6 : 85 length 7 : 16 length 9+: 7 largest cycle: 9 relations building matrix with 13673 columns matrix is 13040 x 13673 (2.1 MB) with weight 443333 (32.42/col) sparse part has weight 443333 (32.42/col) filtering completed in 4 passes matrix is 11898 x 11962 (1.7 MB) with weight 356288 (29.78/col) sparse part has weight 356288 (29.78/col) saving the first 48 matrix rows for later matrix is 11850 x 11962 (1.4 MB) with weight 285190 (23.84/col) sparse part has weight 249192 (20.83/col) matrix includes 64 packed rows commencing Lanczos iteration memory use: 1.9 MB lanczos halted after 189 iterations (dim = 11844) recovered 13 nontrivial dependencies Lanczos elapsed time = 2.1720 seconds. Sqrt elapsed time = 0.0200 seconds. SIQS elapsed time = 5.2822 seconds. pretesting / qs ratio was 2.41 Total factoring time = 18.4442 seconds ***factors found*** P38 = 36778125298740129629221829539366277381 P33 = 195580339309347601712283486553229 ans = 1 C:\Numbers\yafumaster>yafu 8904029861692348898844855788190213555881777216202881511828039505900141 Applying tune_info entry for WIN64  Intel(R) Core(TM) i59300H CPU @ 2.40GHz YAFU Version 2.11 Built with Microsoft Visual Studio 1934 and Intel Compiler 2021 Using GMPECM 7.0.6dev, Powered by MPIR 3.0.0 Detected Intel(R) Core(TM) i59300H CPU @ 2.40GHz Detected L1 = 32768 bytes, L2 = 8388608 bytes, CL = 64 bytes CPU features enabled: SSE41 AVX2 BMI2 Using 1 random witness for RabinMiller PRP checks Cached 664579 primes; max prime is 9999991 Parsed yafu.ini from C:\Numbers\yafumaster =============================================================== ======= Welcome to YAFU (Yet Another Factoring Utility) ======= ======= bbuhrow@gmail.com ======= ======= Type help at any time, or quit to quit ======= =============================================================== >> fac: factoring 8904029861692348898844855788190213555881777216202881511828039505900141 fac: using pretesting plan: deep fac: using tune info for qs/gnfs crossover input from file = 14289940376691307154546806758628389794060195806106065792881584318350516542239227 input to yafu = 8904029861692348898844855788190213555881777216202881511828039505900141 input from file = 3384479355371900826446280991735537190082644628099173553719008264462809917355371900826446280991735537190082644628099173553719 input to yafu = 8904029861692348898844855788190213555881777216202881511828039505900141 div: primes less than 10000 fmt: 1000000 iterations 99%fmt: performed 23 perfect square checks rho: x^2 + 3, starting 4096 iterations on C70 rho: x^2 + 2, starting 4096 iterations on C70 rho: x^2 + 1, starting 4096 iterations on C70 pm1: starting B1 = 150K, B2 = gmpecm default on C70 pm1: Process took 0.0990 seconds. fac: setting target pretesting digits to 23.333333 fac: estimated sum of completed work is t0.000000 fac: work done at B1=2000: 0 curves, max work = 30 curves fac: 30 more curves at B1=2000 needed to get to t23.333333 ecm: 30/30 curves on C70, B1=2k, B2=gmpecm default ecm: 15/30 curves on C70, B1=2k, B2=gmpecm defaultcm: 10/30 curves on C70, B1=2k, B2=gmpecm default fac: setting target pretesting digits to 23.333333 t15: 1.00 t20: 0.04 fac: estimated sum of completed work is t15.177725 fac: work done at B1=11000: 0 curves, max work = 74 curves fac: 74 more curves at B1=11000 needed to get to t23.333333 ecm: 74/74 curves on C70, B1=11k, B2=gmpecm default ecm: 68/74 curves on C70, B1=11k, B2=gmpecm default ecm: 35/74 curves on C70, B1=11k, B2=gmpecm default fac: setting target pretesting digits to 23.333333 t15: 7.17 t20: 1.04 t25: 0.05 fac: estimated sum of completed work is t20.242996 fac: work done at B1=50000: 0 curves, max work = 214 curves fac: 134 more curves at B1=50000 needed to get to t23.333333 ecm: 134/134 curves on C70, B1=50k, B2=gmpecm default, ETA: 0 sec ecm: 128/134 curves on C70, B1=50k, B2=gmpecm default, ETA: 0 sec fac: setting target pretesting digits to 23.333333 t15: 26.31 t20: 7.42 t25: 0.67 t30: 0.04 fac: estimated sum of completed work is t23.373837 fac: QS time estimation from tune data = 2.11 sec fac: GNFS time estimation from tune data = 272.81 sec fac: tune params predict 2.11 sec for SIQS and 272.81 sec for NFS fac: tune params scheduling SIQS work starting SIQS on c70: 8904029861692348898844855788190213555881777216202881511828039505900141 input from file = 14289940376691307154546806758628389794060195806106065792881584318350516542239227 input to yafu = 8904029861692348898844855788190213555881777216202881511828039505900141 assigning tdiv_medprimes_32k_avx2 ptr assigning tdiv_LP_avx2 ptr assigning resieve_medprimes_32k_avx2 ptr assigning med_sieveblock_32k_avx2 ptr assigning nextRoots_32k_avx2_intrin ptr fb bounds small: 1024 SPV: 30 10bit: 88 11bit: 144 12bit: 280 13bit: 488 32k div 3: 640 14bit: 920 15bit: 1760 med: 2896 large: 7440 large_x2: 13040 all: 13040 start primes SPV: 233 10bit: 1163 11bit: 2053 12bit: 4091 13bit: 8243 32k div 3: 10987 14bit: 16447 15bit: 33247 med: 57637 large: 163613 large_x2: 304039 all: 304039 ==== sieve params ==== n = 70 digits, 233 bits factor base: 13040 primes (max prime = 304039) single large prime cutoff: 25843315 (85 * pmax) double large prime range from 92439713521 to 9367191243882 DLP MFB = 1.75 allocating 4 large prime slices of factor base buckets hold 2048 elements large prime hashtables have 327680 bytes using AVX2 enabled 32k sieve core sieve interval: 5 blocks of size 32768 polynomial A has ~ 9 factors using multiplier of 1 (kn mod 8 == 5) using inmemory storage, aborts will lose all progress using SPV correction of 21 bits, starting at offset 30 trial factoring cutoff at 75 bits ==== sieving in progress ( 8 threads): 13104 relations needed ==== ==== Press ctrlc to abort and save state ==== 13580 rels found: 5226 full + 8354 from 97865 partial, (27341.61 rels/sec) sieving required 33655 total polynomials (265 'A' polynomials) trial division touched 1466187 sieve locations out of 11028070400 dlpecm: 0 failures, 40848 attempts, 347906 outside range, 251687 prp, 40394 useful total reports = 1466187, total surviving reports = 703138 total blocks sieved = 336550, avg surviving reports per block = 2.09 Elapsed time: 3.7705 sec QS elapsed time = 3.7745 seconds. ==== post processing stage (msieve1.38) ==== read 103091 relations begin singleton removal with 103091 relations reduce to 24837 relations in 7 passes attempting to read and process 24837 relations recovered 24837 relations recovered 17547 polynomials attempting to build 13580 cycles found 13580 cycles from 24837 relations in 3 passes distribution of cycle lengths: length 1 : 5226 length 2 : 4508 length 3 : 2270 length 4 : 966 length 5 : 394 length 6 : 146 length 7 : 48 length 9+: 22 largest cycle: 10 relations building matrix with 13580 columns matrix is 13040 x 13580 (2.2 MB) with weight 469115 (34.54/col) sparse part has weight 469115 (34.54/col) filtering completed in 4 passes matrix is 12179 x 12243 (1.9 MB) with weight 392558 (32.06/col) sparse part has weight 392558 (32.06/col) saving the first 48 matrix rows for later matrix is 12131 x 12243 (1.5 MB) with weight 320104 (26.15/col) sparse part has weight 282445 (23.07/col) matrix includes 64 packed rows commencing Lanczos iteration memory use: 2.0 MB lanczos halted after 193 iterations (dim = 12128) recovered 14 nontrivial dependencies Lanczos elapsed time = 2.4580 seconds. Sqrt elapsed time = 0.0220 seconds. SIQS elapsed time = 6.2544 seconds. pretesting / qs ratio was 1.93 Total factoring time = 18.7810 seconds ***factors found*** P31 = 9902998934502241704533809840921 P39 = 899124590498594820097612439217556424821 ans = 1 
20230424, 16:41  #26 
"Ben"
Feb 2007
2^{2}×941 Posts 
EdH's problem is intermittent. Sometimes post processing will start too early when lots of cores are used and sometimes all dependencies will produce a trivial factorization. In both cases the solution is to sieve more and try again. I put in code to do that, and I thought it worked, but I guess I was wrong. I haven't had much time for another try at it, but I'll get to it at some point.

20230424, 22:02  #27 
Jun 2021
2·3·5·7 Posts 
i found out that the gc version works well.
(context: this post was about a similar siqs issue) Last fiddled with by birtwistlecaleb on 20230424 at 22:06 Reason: why did i even post this... 
20230508, 15:11  #28 
"Jane Sullivan"
Jan 2011
Beckenham, UK
2^{4}·3·7 Posts 
TL;DR = delete sigs.dat before running yafu on a particular number for the first time.
I've had that problem as well. If you remember, I usually call YAFU automatically from my application, and it's this that goes wrong occasionally. However, after this happened today, I called YAFU manually from its own directory, and it worked. Here are some diagnostics: first of all the automatic call from my application (just the SIQS bit) Code:
05/08/23 14:38:53, starting SIQS on c89: 35761714489199661945209000116376720917040498268122704288680763161443979238900836003352289 05/08/23 14:38:53, random seed: 110715191753848095 05/08/23 14:38:53, ==== sieve params ==== 05/08/23 14:38:53, n = 89 digits, 295 bits 05/08/23 14:38:53, factor base: 69824 primes (max prime = 1856297) 05/08/23 14:38:53, single large prime cutoff: 204192670 (110 * pmax) 05/08/23 14:38:53, double large prime range from 3445838552209 to 2363601591436203 05/08/23 14:38:53, DLP MFB = 1.85 05/08/23 14:38:53, using AVX512BW enabled 32k sieve core 05/08/23 14:38:53, sieve interval: 8 blocks of size 32768 05/08/23 14:38:53, polynomial A has ~ 11 factors 05/08/23 14:38:53, using multiplier of 1 05/08/23 14:38:53, using multiplier of 1 05/08/23 14:38:53, using Q2(x) polynomials for kN mod 8 = 1 05/08/23 14:38:53, using SPV correction of 19 bits, starting at offset 35 05/08/23 14:38:53, trial factoring cutoff at 92 bits 05/08/23 14:38:53, ==== sieving started ( 4 threads) ==== 05/08/23 14:38:53, trial division touched 0 sieve locations out of 0 05/08/23 14:38:53, total reports = 0, total surviving reports = 0 05/08/23 14:38:53, total blocks sieved = 0, avg surviving reports per block = nan(ind) 05/08/23 14:38:53, dlpecm: 0 failures, 0 attempts, 0 outside range, 0 prp, 0 useful 05/08/23 14:38:53, 70301 relations found: 22085 full + 48216 from 878220 partial, using 0 polys (0 A polys) 05/08/23 14:38:53, on average, sieving found inf rels/poly and 2047879.12 rels/sec 05/08/23 14:38:53, trial division touched 0 sieve locations out of 0 05/08/23 14:38:53, ==== post processing stage (msieve1.38) ==== Now the manual version Code:
starting SIQS on c89: 35761714489199661945209000116376720917040498268122704288680763161443979238900836003352289 ==== sieving in progress ( 4 threads): 69888 relations needed ==== ==== Press ctrlc to abort and save state ==== 70390 rels found: 22237 full + 48153 from 902659 partial, (7594.84 rels/sec) building matrix with 70390 columns SIQS elapsed time = 131.1278 seconds. Total factoring time = 188.8053 seconds ***factors found*** P56 = 15462823480129404505066388742085588299840884826588594913 P34 = 2312754493715554016956912992996353 ans = 1 So I went to the directory that yafu gets called from in my application, and deleted siqs.dat from there, and then repeated my run from my application. And, thank heavens, it worked. So it seems that the fix for my problem is to delete siqs.dat before running yafu, which shouldn't be a problem as I'm not going to try to run yafu on the same number more than once ordinarily. It may not stop the problem reoccuring, but I hope it does. I don't know if this will affect other people's problems, but I put it forward as something to look at. I have a couple of questions:  Is siqs.dat the name of the previous savefile, or am I barking up the wrong tree?  What does yafu do differently depending on the presence or absence of siqs.dat? Sorry this is so long. Last fiddled with by BudgieJane on 20230508 at 15:13 Reason: grammar 
20230509, 14:37  #29 
"James Heinrich"
May 2004
exNorthern Ontario
1000001111111_{2} Posts 
Would it be possible to have an option to output only JSON to stdout?
Right now I can call ./yafu '123456789' and get the factoring progress followed by: Code:
***factors found*** P13 = 1154905652933 P68 = 10770501407167744869020364926833770037404552145874242009905692194033 ans = 1 Would it be possible to have an option like jsonscreen where it would just print the JSON result line to stdout? { "inputexpression":"factor(123456789)", "inputdecimal":"123456789", "inputargumentstring":"123456789 ", "factorsprime":["3","3","3607","3803"], "runtime" : {"total":0.0002}, "timestart" : "20230509 10:34:21", "timeend" : "20230509 10:34:21", "info":{"compiler":"GNUC 11","ECMversion":"7.0.6dev","GMPversion":"6.2.1","yafuversion":"2.10"} } This can be pulled from factor.json of course, but it would be easier just to grab it from stdout. 
20230514, 13:01  #30 
Dec 2021
79 Posts 
When running 40332148362698186503207202016403392614370799382249149846314221161361155086431334693701404827921704387044 in yafu 2.11 with pretune, it consistently reaches an infinite loop on C27=199063039811021252248642153. It looks like the issue is caused by finding an ECM factor, and a trivial amount of ECM for the remaining composite, triggering line 1237 of factor/autofactor.c.
Apologies if this is known or not the right place to report this kind of thing. 
20230521, 14:20  #31 
"Daniel Jackson"
May 2011
14285714285714285714
300_{16} Posts 
Strange error
What does "Error: M=10^28" mean, and what's the workaround to getting SNFS to work? I was trying to factor the C106 from 10^109*40952200253310761, and I got the following output:
Code:
Applying tune_info entry for WIN64  Intel(R) Core(TM) i59300H CPU @ 2.40GHz YAFU Version 2.11 Built with Microsoft Visual Studio 1934 and Intel Compiler 2021 Using GMPECM 7.0.6dev, Powered by MPIR 3.0.0 Detected Intel(R) Core(TM) i59300H CPU @ 2.40GHz Detected L1 = 32768 bytes, L2 = 8388608 bytes, CL = 64 bytes CPU features enabled: SSE41 AVX2 BMI2 Using 1 random witness for RabinMiller PRP checks Cached 664579 primes; max prime is 9999991 Parsed yafu.ini from C:\Numbers\yafumaster =============================================================== ======= Welcome to YAFU (Yet Another Factoring Utility) ======= ======= bbuhrow@gmail.com ======= ======= Type help at any time, or quit to quit ======= =============================================================== >> nfs: checking for job file  job file found, testing for matching input input from file = 4622287850254535685448462647685575025651986357826695554551610526005995631281348164595285069118676184303 input to yafu = 4095220019999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999946689239 nfs: number in job file does not match input nfs: checking for poly file  no poly file found nfs: commencing nfs on c118: 4095220019999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999946689239 nfs: searching for brent special forms... nfs: checking a*b^x +/ c for 32 <= x <= 1478 nfs: checking a*b^x +/ c for 32 <= x <= 933 nfs: checking a*b^x +/ c for 32 <= x <= 637 nfs: checking a*b^x +/ c for 32 <= x <= 572 nfs: checking a*b^x +/ c for 32 <= x <= 527 nfs: checking a*b^x +/ c for 32 <= x <= 445 nfs: input divides 409522002*10^109  53310761 nfs: snfs form detection took 0.002994 seconds gen: ======================================================== gen: considering the following polynomials: gen: ======================================================== nfs: checking degree 4 poly Error: M=10000000000000000000000000000 Code:
Faulting application name: yafu.exe, version: 0.0.0.0, time stamp: 0x64337825 Faulting module name: ucrtbase.dll, version: 10.0.19041.789, time stamp: 0x2bd748bf Exception code: 0xc0000409 Fault offset: 0x0000000000071208 Faulting process id: 0x2208 Faulting application start time: 0x01d98beebcb82948 Faulting application path: C:\Numbers\yafumaster\yafu.exe Faulting module path: C:\WINDOWS\System32\ucrtbase.dll Report Id: fdb2b54c4b7c42be90379a51ee4c23bf Faulting package full name: Faulting packagerelative application ID: 
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