Trace number 311100

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
UnitMarch 2007-02-08SAT 1.89071 1.89312

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1476745538-08-SAT.cnf
MD5SUMc77e3fe2797ba24ba2baccdc1afa561c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.028995
Satisfiable
(Un)Satisfiability was proved
Number of variables1294
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.01	c UnitMarch starting with seed 1804289383 on /tmp/evaluation/311100-1172564503/instance-311100-1172564503.cnf
0.00/0.01	c found 0 unit clauses in formula
1.84/1.88	c Periods: 234
1.84/1.88	c satisfying mask: 00000000000000001000000000000000
1.84/1.88	s SATISFIABLE
1.84/1.89	v 1 -2 -3 4 -5 6 -7 -8 9 10 11 12 -13 -14 -15 16 -17 -18 19 -20 21 -22 23 -24 25 26 -27 28 -29 30 31 32 -33 -34 -35 36 37 -38 39 40 41 -42 43 -44 -45 -46 47 -48 49 50 51 52 53 54 55 -56 57 58 59 60 61 -62 63 -64 65 66 67 68 69 -70 71 72 73 -74 75 -76 77 78 79 80 -81 -82 -83 84 -85 -86 87 -88 -89 -90 91 92 -93 -94 -95 96 97 -98 -99 -100 101 102 103 -104 105 -106 -107 -108 -109 110 -111 112 113 -114 -115 116 117 -118 -119 -120 121 -122 -123 124 -125 -126 127 128 -129 130 -131 132 133 134 135 136 -137 138 139 -140 141 -142 143 144 -145 146 -147 -148 149 150 -151 152 -153 -154 155 -156 -157 -158 159 160 -161 -162 -163 -164 -165 166 167 168 -169 170 171 -172 173 174 -175 176 -177 178 179 180 181 182 183 184 185 -186 187 -188 -189 190 191 192 -193 194 -195 196 -197 -198 -199 200 201 202 -203 204 -205 206 -207 -208 -209 -210 -211 212 213 214 215 -216 -217 -218 219 -220 -221 -222 223 224 -225 226 227 228 229 230 231 -232 -233 234 235 236 -237 238 239 240 -241 242 -243 -244 245 -246 -247 -248 249 250 -251 252 -253 254 -255 -256 257 258 -259 260 -261 262 -263 -264 -265 266 267 268 269 270 271 -272 -273 274 275 -276 277 -278 279 -280 281 282 283 -284 -285 286 287 288 289 290 -291 -292 -293 294 295 -296 297 298 299 300 -301 302 303 304 -305 -306 -307 -308 -309 310 311 -312 313 314 -315 316 -317 -318 -319 -320 321 322 323 324 -325 326 -327 -328 -329 -330 331 -332 -333 -334 335 -336 337 -338 -339 -340 -341 -342 343 -344 345 -346 -347 348 -349 -350 -351 -352 -353 -354 -355 356 357 358 359 -360 361 -362 363 -364 -365 -366 367 368 369 -370 371 -372 373 374 375 376 377 -378 -379 -380 -381 -382 -383 -384 385 386 387 -388 -389 390 -391 -392 393 394 395 396 397 398 399 -400 401 -402 403 -404 -405 -406 407 408 -409 410 -411 -412 -413 -414 415 416 417 418 -419 -420 421 422 423 -424 -425 426 -427 -428 -429 430 431 -432 -433 434 435 436 437 438 -439 440 -441 442 -443 444 -445 -446 447 -448 449 -450 451 452 453 454 -455 -456 -457 458 -459 460 461 -462 -463 -464 -465 466 467 -468 469 470 -471 -472 473 474 475 -476 477 478 479 -480 -481 -482 483 484 -485 486 -487 -488 -489 -490 491 -492 493 -494 495 496 -497 -498 499 -500 -501 502 -503 -504 -505 -506 507 508 -509 -510 511 -512 513 -514 -515 516 -517 518 -519 520 521 -522 523 -524 -525 526 527 -528 529 530 -531 -532 -533 -534 535 -536 -537 -538 539 540 541 -542 543 544 -545 546 -547 548 -549 -550 551 552 553 554 555 556 -557 -558 559 560 561 562 -563 564 565 566 -567 -568 569 -570 -571 572 573 574 -575 576 -577 578 579 580 -581 -582 583 -584 585 586 587 -588 -589 590 591 592 -593 -594 595 596 -597 598 -599 -600 -601 602 -603 -604 605 606 607 608 -609 610 611 612 -613 -614 615 616 617 618 619 620 621 622 623 624 625 -626 -627 -628 -629 -630 631 -632 633 634 635 -636 -637 -638 -639 -640 -641 -642 643 644 645 646 647 -648 649 -650 651 -652 -653 654 -655 -656 657 658 659 660 -661 -662 -663 664 -665 666 -667 -668 669 670 -671 -672 673 -674 -675 676 -677 -678 -679 680 681 -682 -683 684 -685 686 -687 688 689 -690 -691 -692 -693 -694 -695 -696 -697 698 -699 -700 701 702 703 -704 -705 -706 707 708 709 -710 711 712 -713 -714 -715 716 -717 -718 -719 -720 -721 -722 -723 724 -725 726 727 -728 729 730 -731 732 733 -734 -735 -736 -737 738 739 740 -741 742 -743 744 -745 746 -747 -748 -749 -750 751 -752 753 754 -755 756 757 -758 -759 -760 761 762 763 764 765 766 -767 768 -769 770 -771 772 -773 -774 -775 776 -777 -778 779 780 781 -782 -783 784 -785 -786 787 -788 789 -790 -791 792 -793 -794 795 -796 -797 -798 -799 800 -801 -802 803 804 -805 -806 807 -808 -809 -810 811 -812 -813 814 815 -816 817 -818 -819 -820 -821 -822 -823 824 825 826 827 -828 829 -830 831 832 -833 834 -835 -836 837 838 839 840 841 842 -843 844 845 -846 847 -848 849 -850 -851 852 853 -854 -855 856 -857 -858 -859 860 -861 862 863 864 -865 -866 -867 868 869 -870 -871 872 -873 -874 -875 876 877 -878 879 880 -881 -882 -883 -884 -885 -886 -887 -888 889 -890 -891 -892 -893 894 895 -896 897 898 899 -900 901 -902 903 904 905 -906 907 -908 909 -910 911 912 913 -914 915 916 -917 918 -919 920 -921 -922 -923 -924 -925 -926 -927 928 929 930 -931 932 933 934 935 -936 937 938 -939 -940 -941 942 -943 944 945 -946 947 -948 949 -950 951 -952 -953 954 -955 956 957 -958 -959 -960 -961 962 963 -964 965 966 967 -968 969 970 -971 -972 973 974 -975 -976 -977 -978 979 980 981 982 -983 -984 -985 -986 987 988 989 -990 991 -992 -993 -994 -995 996 997 998 999 1000 1001 1002 -1003 -1004 -1005 -1006 -1007 1008 -1009 1010 -1011 -1012 -1013 1014 -1015 1016 1017 1018 1019 -1020 -1021 -1022 1023 1024 -1025 -1026 -1027 1028 -1029 -1030 -1031 -1032 -1033 1034 -1035 1036 1037 1038 1039 1040 1041 -1042 -1043 -1044 -1045 1046 -1047 -1048 1049 1050 -1051 -1052 -1053 -1054 1055 1056 -1057 1058 1059 -1060 -1061 1062 -1063 -1064 1065 -1066 1067 1068 1069 -1070 1071 1072 1073 1074 -1075 1076 1077 -1078 -1079 -1080 -1081 1082 1083 1084 1085 1086 -1087 -1088 -1089 1090 1091 -1092 1093 -1094 -1095 -1096 -1097 -1098 1099 1100 1101 -1102 -1103 -1104 -1105 1106 1107 1108 -1109 -1110 -1111 1112 1113 -1114 -1115 -1116 -1117 1118 -1119 -1120 -1121 1122 1123 -1124 -1125 1126 1127 1128 1129 -1130 -1131 -1132 1133 1134 -1135 1136 -1137 -1138 -1139 1140 1141 1142 1143 -1144 -1145 1146 1147 -1148 -1149 1150 1151 1152 1153 1154 -1155 1156 -1157 1158 -1159 -1160 -1161 1162 1163 1164 1165 -1166 1167 -1168 1169 1170 -1171 1172 1173 1174 -1175 1176 1177 1178 -1179 1180 1181 1182 1183 -1184 -1185 -1186 1187 1188 -1189 -1190 1191 1192 -1193 1194 1195 1196 1197 1198 -1199 1200 1201 -1202 -1203 -1204 -1205 -1206 1207 1208 -1209 1210 1211 -1212 -1213 -1214 -1215 1216 -1217 1218 -1219 -1220 1221 -1222 1223 -1224 1225 -1226 -1227 1228 -1229 1230 -1231 -1232 1233 -1234 -1235 1236 1237 -1238 -1239 -1240 1241 -1242 -1243 -1244 -1245 -1246 -1247 1248 -1249 -1250 -1251 -1252 1253 -1254 -1255 -1256 -1257 1258 1259 1260 -1261 1262 1263 -1264 -1265 -1266 -1267 -1268 1269 -1270 -1271 -1272 -1273 -1274 -1275 1276 -1277 1278 -1279 1280 1281 -1282 -1283 1284 1285 1286 1287 1288 -1289 1290 -1291 -1292 1293 -1294 1295 
1.84/1.89	c Runtime statistics:
1.84/1.89	c   Overall running time  = 1.870000

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node17/watcher-311100-1172564503 -o ROOT/results/node17/solver-311100-1172564503 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311100-1172564503/UnitMarch_32_bits /tmp/evaluation/311100-1172564503/instance-311100-1172564503.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.95 0.98 0.99 3/77 20666
/proc/meminfo: memFree=1466728/2055920 swapFree=4192812/4192956
[pid=20666] ppid=20664 vsize=1168 CPUtime=0
/proc/20666/stat : 20666 (UnitMarch_32_bi) R 20664 20666 18745 0 -1 4194304 160 0 0 0 0 0 0 0 18 0 1 0 276404596 1196032 143 18446744073709551615 134512640 135389829 4294956688 18446744073709551615 134990859 0 0 4096 0 0 0 0 17 1 0 0
/proc/20666/statm: 292 143 92 214 0 75 0

[startup+0.10794 s]
/proc/loadavg: 0.95 0.98 0.99 3/77 20666
/proc/meminfo: memFree=1466728/2055920 swapFree=4192812/4192956
[pid=20666] ppid=20664 vsize=1564 CPUtime=0.1
/proc/20666/stat : 20666 (UnitMarch_32_bi) R 20664 20666 18745 0 -1 4194304 260 0 0 0 10 0 0 0 18 0 1 0 276404596 1601536 243 18446744073709551615 134512640 135389829 4294956688 18446744073709551615 134537643 0 0 4096 0 0 0 0 17 1 0 0
/proc/20666/statm: 391 243 97 214 0 174 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1564

[startup+0.515982 s]
/proc/loadavg: 0.95 0.98 0.99 3/77 20666
/proc/meminfo: memFree=1466728/2055920 swapFree=4192812/4192956
[pid=20666] ppid=20664 vsize=1564 CPUtime=0.51
/proc/20666/stat : 20666 (UnitMarch_32_bi) R 20664 20666 18745 0 -1 4194304 260 0 0 0 51 0 0 0 22 0 1 0 276404596 1601536 243 18446744073709551615 134512640 135389829 4294956688 18446744073709551615 134529598 0 0 4096 0 0 0 0 17 1 0 0
/proc/20666/statm: 391 243 97 214 0 174 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1564

[startup+1.34208 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 20667
/proc/meminfo: memFree=1466144/2055920 swapFree=4192812/4192956
[pid=20666] ppid=20664 vsize=1564 CPUtime=1.33
/proc/20666/stat : 20666 (UnitMarch_32_bi) R 20664 20666 18745 0 -1 4194304 260 0 0 0 133 0 0 0 25 0 1 0 276404596 1601536 243 18446744073709551615 134512640 135389829 4294956688 18446744073709551615 134529605 0 0 4096 0 0 0 0 17 1 0 0
/proc/20666/statm: 391 243 97 214 0 174 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 1564

Solver just ended. Dumping a history of the last processes samples

[startup+1.6481 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 20667
/proc/meminfo: memFree=1466144/2055920 swapFree=4192812/4192956
[pid=20666] ppid=20664 vsize=1564 CPUtime=1.64
/proc/20666/stat : 20666 (UnitMarch_32_bi) R 20664 20666 18745 0 -1 4194304 260 0 0 0 164 0 0 0 25 0 1 0 276404596 1601536 243 18446744073709551615 134512640 135389829 4294956688 18446744073709551615 134529683 0 0 4096 0 0 0 0 17 1 0 0
/proc/20666/statm: 391 243 97 214 0 174 0
Current children cumulated CPU time (s) 1.64
Current children cumulated vsize (KiB) 1564

[startup+1.85212 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 20667
/proc/meminfo: memFree=1466144/2055920 swapFree=4192812/4192956
[pid=20666] ppid=20664 vsize=1564 CPUtime=1.84
/proc/20666/stat : 20666 (UnitMarch_32_bi) R 20664 20666 18745 0 -1 4194304 260 0 0 0 184 0 0 0 25 0 1 0 276404596 1601536 243 18446744073709551615 134512640 135389829 4294956688 18446744073709551615 134529569 0 0 4096 0 0 0 0 17 1 0 0
/proc/20666/statm: 391 243 97 214 0 174 0
Current children cumulated CPU time (s) 1.84
Current children cumulated vsize (KiB) 1564

Child status: 10
Real time (s): 1.89312
CPU time (s): 1.89071
CPU user time (s): 1.88671
CPU system time (s): 0.003999
CPU usage (%): 99.8729
Max. virtual memory (cumulated for all children) (KiB): 1564

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.88671
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 271
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 8
involuntary context switches= 38

runsolver used 0.004999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node17 on Tue Feb 27 08:21:44 UTC 2007

IDJOB= 311100
IDBENCH= 20305
IDSOLVER= 97
FILE ID= node17/311100-1172564503

PBS_JOBID= 3971656

Free space on /tmp= 66557 MiB

SOLVER NAME= UnitMarch 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1476745538-08-SAT.cnf
COMMAND LINE= /tmp/evaluation/311100-1172564503/UnitMarch_32_bits /tmp/evaluation/311100-1172564503/instance-311100-1172564503.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node17/watcher-311100-1172564503 -o ROOT/results/node17/solver-311100-1172564503 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311100-1172564503/UnitMarch_32_bits /tmp/evaluation/311100-1172564503/instance-311100-1172564503.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  c77e3fe2797ba24ba2baccdc1afa561c

RANDOM SEED= 961312626

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node17.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.229
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.229
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1467136 kB
Buffers:         64064 kB
Cached:         404456 kB
SwapCached:          0 kB
Active:         304668 kB
Inactive:       208376 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1467136 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2384 kB
Writeback:           0 kB
Mapped:          63472 kB
Slab:            61276 kB
Committed_AS:   920480 kB
PageTables:       1748 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66557 MiB

End job on node17 on Tue Feb 27 08:21:46 UTC 2007