Trace number 311106

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
saps 2007-02-08SAT 0.048991 0.0496521

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)

0.00/0.04	c 
0.00/0.04	c UBCSAT version 1.1.0rr
0.00/0.04	c 
0.00/0.04	c http://www.satlib.org/ubcsat
0.00/0.04	c 
0.00/0.04	c ubcsat -h for help
0.00/0.04	c 
0.00/0.04	c  -runs 1 
0.00/0.04	c  -cutoff 4294967295 
0.00/0.04	c  -timeout 0.000000 
0.00/0.04	c  -gtimeout 0.000000 
0.00/0.04	c  -noimprove 0 
0.00/0.04	c  -target 0 
0.00/0.04	c  -wtarget 0.000000 
0.00/0.04	c  -seed 691766716 
0.00/0.04	c  -solve 0 
0.00/0.04	c  -find,-numsol 0 
0.00/0.04	c  -findunique 0 
0.00/0.04	c  -srestart 0 
0.00/0.04	c  -prestart 0.000000 
0.00/0.04	c  -drestart 0 
0.00/0.04	c 
0.00/0.04	c  -alpha 1.300000 
0.00/0.04	c  -rho 0.800000 
0.00/0.04	c  -ps 0.050000 
0.00/0.04	c  -wp 0.010000 
0.00/0.04	c  -sapsthresh -0.100000 
0.00/0.04	c 
0.00/0.04	s SATISFIABLE
0.00/0.04	v  1 -2 -3 4 -5 6 -7 8 9 10
0.00/0.04	v  -11 12 -13 -14 15 16 17 -18 -19 20
0.00/0.04	v  21 22 23 -24 25 26 -27 28 -29 30
0.00/0.04	v  31 -32 -33 -34 35 36 37 -38 39 -40
0.00/0.04	v  -41 -42 -43 -44 -45 -46 47 48 49 50
0.00/0.04	v  51 52 53 54 55 56 57 58 59 -60
0.00/0.04	v  61 -62 63 -64 -65 66 67 68 -69 70
0.00/0.04	v  71 72 -73 74 75 -76 77 78 79 80
0.00/0.04	v  -81 82 -83 -84 -85 -86 87 -88 -89 -90
0.00/0.04	v  91 92 -93 -94 -95 -96 -97 -98 -99 -100
0.00/0.04	v  101 -102 103 -104 105 106 -107 108 -109 110
0.00/0.04	v  -111 112 113 -114 -115 116 117 -118 -119 -120
0.00/0.04	v  121 -122 123 124 -125 -126 127 128 129 130
0.00/0.04	v  -131 132 133 134 135 -136 -137 138 139 -140
0.00/0.04	v  -141 -142 -143 144 -145 146 -147 -148 149 150
0.00/0.04	v  -151 -152 -153 -154 155 -156 -157 -158 159 160
0.00/0.04	v  -161 -162 -163 164 -165 -166 -167 168 169 -170
0.00/0.04	v  171 -172 -173 174 -175 -176 -177 178 179 180
0.00/0.04	v  181 -182 -183 184 185 -186 187 -188 189 190
0.00/0.04	v  191 192 -193 194 -195 196 -197 -198 -199 200
0.00/0.04	v  201 -202 -203 204 -205 -206 207 -208 -209 -210
0.00/0.04	v  211 212 -213 214 -215 -216 217 -218 219 220
0.00/0.04	v  -221 -222 -223 224 -225 -226 227 228 229 -230
0.00/0.04	v  231 -232 -233 234 235 -236 -237 -238 239 -240
0.00/0.04	v  -241 -242 243 -244 245 -246 247 -248 249 250
0.00/0.04	v  -251 252 253 254 255 -256 257 258 259 260
0.00/0.04	v  -261 -262 263 -264 -265 266 267 268 -269 270
0.00/0.04	v  -271 272 -273 274 275 -276 -277 -278 -279 -280
0.00/0.04	v  281 282 283 -284 -285 286 287 -288 -289 290
0.00/0.04	v  -291 -292 293 -294 295 -296 297 -298 -299 -300
0.00/0.04	v  301 302 -303 304 -305 306 -307 -308 -309 310
0.00/0.04	v  -311 -312 313 314 -315 316 -317 -318 -319 -320
0.00/0.04	v  321 -322 323 324 325 326 -327 -328 -329 -330
0.00/0.04	v  331 332 -333 -334 -335 -336 -337 -338 -339 -340
0.00/0.04	v  -341 -342 343 -344 345 -346 -347 348 -349 -350
0.00/0.04	v  -351 352 -353 354 -355 -356 -357 358 359 -360
0.00/0.04	v  -361 -362 363 -364 -365 366 367 368 369 -370
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0.00/0.04	v  -381 -382 -383 -384 -385 -386 387 388 -389 390
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0.00/0.04	v  -401 -402 -403 -404 -405 -406 407 408 409 410
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0.00/0.04	v  -421 422 423 424 -425 -426 427 -428 429 430
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0.00/0.04	v  461 462 -463 -464 465 466 467 -468 469 -470
0.00/0.04	v  471 -472 473 -474 -475 -476 477 -478 479 -480
0.00/0.04	v  -481 -482 483 484 -485 -486 487 -488 -489 -490
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0.00/0.04	v  501 502 -503 -504 505 506 507 508 509 510
0.00/0.04	v  -511 -512 513 -514 -515 -516 -517 518 -519 520
0.00/0.04	v  -521 522 523 -524 -525 526 -527 -528 529 530
0.00/0.04	v  -531 -532 -533 -534 535 -536 -537 -538 -539 540
0.00/0.04	v  541 542 543 544 -545 546 -547 548 -549 -550
0.00/0.04	v  551 552 -553 554 -555 556 557 558 559 560
0.00/0.04	v  561 562 -563 564 565 566 -567 -568 569 -570
0.00/0.04	v  -571 572 573 -574 575 576 577 -578 579 580
0.00/0.04	v  -581 -582 583 -584 585 -586 -587 588 -589 590
0.00/0.04	v  591 592 -593 -594 -595 -596 597 598 -599 -600
0.00/0.04	v  -601 -602 603 604 605 606 607 608 609 610
0.00/0.04	v  611 612 -613 -614 615 616 617 618 619 620
0.00/0.04	v  621 622 623 624 625 -626 -627 -628 -629 -630
0.00/0.04	v  631 -632 633 634 635 -636 -637 -638 -639 -640
0.00/0.04	v  -641 -642 643 -644 645 -646 -647 648 -649 -650
0.00/0.04	v  651 -652 -653 654 -655 -656 -657 658 659 660
0.00/0.04	v  -661 -662 663 664 -665 666 -667 -668 -669 670
0.00/0.04	v  -671 -672 673 -674 -675 -676 -677 678 -679 680
0.00/0.04	v  -681 -682 683 -684 -685 686 687 688 689 -690
0.00/0.04	v  691 -692 -693 -694 -695 -696 -697 698 -699 -700
0.00/0.04	v  701 702 703 -704 -705 -706 707 -708 709 -710
0.00/0.04	v  711 -712 -713 714 -715 716 -717 -718 -719 -720
0.00/0.04	v  721 -722 -723 724 725 726 727 728 -729 730
0.00/0.04	v  -731 732 733 -734 735 -736 737 738 -739 740
0.00/0.04	v  741 742 -743 744 -745 746 -747 748 -749 750
0.00/0.04	v  751 -752 753 -754 -755 756 757 -758 -759 -760
0.00/0.04	v  761 762 -763 764 765 -766 767 768 -769 770
0.00/0.04	v  -771 772 -773 -774 -775 -776 777 778 779 780
0.00/0.04	v  781 -782 -783 784 -785 -786 787 -788 789 -790
0.00/0.04	v  791 792 793 -794 795 -796 797 -798 799 800
0.00/0.04	v  -801 802 -803 804 -805 -806 807 -808 -809 -810
0.00/0.04	v  811 -812 813 -814 815 -816 817 818 -819 820
0.00/0.04	v  821 -822 -823 824 -825 826 827 -828 829 -830
0.00/0.04	v  831 832 -833 -834 835 -836 -837 838 839 -840
0.00/0.04	v  841 -842 -843 844 845 846 847 -848 -849 -850
0.00/0.04	v  851 852 -853 -854 855 856 -857 -858 -859 860
0.00/0.04	v  -861 -862 -863 864 865 866 867 868 -869 -870
0.00/0.04	v  -871 872 -873 -874 -875 876 877 -878 879 880
0.00/0.04	v  881 -882 -883 884 885 -886 887 -888 889 890
0.00/0.04	v  -891 -892 -893 894 -895 -896 -897 898 899 900
0.00/0.04	v  901 -902 903 904 905 -906 907 -908 -909 910
0.00/0.04	v  911 -912 -913 914 -915 916 917 918 -919 920
0.00/0.04	v  -921 -922 -923 -924 -925 -926 927 928 929 -930
0.00/0.04	v  -931 932 933 934 935 -936 937 938 -939 -940
0.00/0.04	v  -941 -942 -943 944 945 -946 947 -948 949 -950
0.00/0.04	v  951 -952 -953 954 -955 956 957 -958 959 -960
0.00/0.04	v  -961 962 963 964 -965 -966 967 -968 969 970
0.00/0.04	v  -971 -972 973 -974 -975 -976 -977 -978 979 980
0.00/0.04	v  981 -982 -983 -984 985 -986 -987 988 989 990
0.00/0.04	v  991 992 -993 -994 -995 -996 997 998 999 -1000
0.00/0.04	v  1001 -1002 -1003 -1004 -1005 -1006 -1007 1008 -1009 1010
0.00/0.04	v  -1011 1012 -1013 1014 1015 1016 -1017 1018 1019 -1020
0.00/0.04	v  1021 1022 -1023 1024 -1025 1026 -1027 1028 1029 1030
0.00/0.04	v  -1031 1032 -1033 1034 -1035 -1036 1037 -1038 1039 -1040
0.00/0.04	v  -1041 1042 1043 1044 -1045 1046 -1047 -1048 1049 1050
0.00/0.04	v  -1051 -1052 1053 -1054 1055 1056 1057 1058 1059 -1060
0.00/0.04	v  -1061 -1062 -1063 -1064 1065 -1066 1067 1068 1069 1070
0.00/0.04	v  1071 1072 1073 1074 -1075 1076 1077 1078 -1079 -1080
0.00/0.04	v  -1081 1082 -1083 1084 1085 -1086 1087 -1088 -1089 1090
0.00/0.04	v  1091 -1092 1093 -1094 -1095 -1096 -1097 -1098 -1099 1100
0.00/0.04	v  -1101 -1102 -1103 -1104 -1105 1106 1107 -1108 1109 -1110
0.00/0.04	v  -1111 -1112 1113 -1114 1115 1116 1117 1118 1119 -1120
0.00/0.04	v  -1121 1122 1123 -1124 -1125 1126 1127 -1128 1129 -1130
0.00/0.04	v  -1131 -1132 1133 1134 -1135 1136 -1137 -1138 -1139 1140
0.00/0.04	v  1141 1142 1143 -1144 1145 1146 1147 -1148 -1149 1150
0.00/0.04	v  1151 -1152 1153 1154 -1155 1156 -1157 -1158 -1159 -1160
0.00/0.04	v  -1161 1162 1163 -1164 -1165 -1166 1167 -1168 1169 1170
0.00/0.04	v  1171 1172 1173 1174 -1175 1176 1177 -1178 -1179 -1180
0.00/0.04	v  1181 1182 1183 -1184 -1185 -1186 1187 1188 -1189 -1190
0.00/0.04	v  1191 1192 -1193 1194 1195 1196 1197 1198 -1199 -1200
0.00/0.04	v  1201 -1202 -1203 1204 1205 -1206 1207 1208 -1209 1210
0.00/0.04	v  1211 -1212 -1213 -1214 -1215 1216 -1217 1218 1219 -1220
0.00/0.04	v  1221 1222 1223 -1224 1225 -1226 -1227 1228 -1229 1230
0.00/0.04	v  -1231 1232 -1233 -1234 -1235 1236 -1237 1238 1239 1240
0.00/0.04	v  1241 1242 -1243 -1244 -1245 -1246 1247 1248 -1249 -1250
0.00/0.04	v  1251 1252 -1253 -1254 1255 -1256 -1257 1258 1259 1260
0.00/0.04	v  -1261 1262 1263 1264 -1265 -1266 -1267 -1268 1269 1270
0.00/0.04	v  -1271 -1272 1273 -1274 -1275 1276 -1277 1278 -1279 -1280
0.00/0.04	v  -1281 -1282 1283 1284 1285 -1286 1287 -1288 -1289 1290
0.00/0.04	v  1291 -1292 -1293 -1294 -1295 0

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/node34/watcher-311106-1172564510 -o ROOT/results/node34/solver-311106-1172564510 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311106-1172564510/saps /tmp/evaluation/311106-1172564510/instance-311106-1172564510.cnf 691766716 

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: 0.99 0.98 0.99 3/64 23346
/proc/meminfo: memFree=1092792/2055920 swapFree=4183908/4192956
[pid=23346] ppid=23344 vsize=5160 CPUtime=0
/proc/23346/stat : 23346 (saps) R 23344 23346 23146 0 -1 4194304 153 0 0 0 0 0 0 0 18 0 1 0 250214820 5283840 138 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134799213 0 0 4096 0 0 0 0 17 1 0 0
/proc/23346/statm: 1290 138 73 159 0 1129 0

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

Child status: 10
Real time (s): 0.0496521
CPU time (s): 0.048991
CPU user time (s): 0.046992
CPU system time (s): 0.001999
CPU usage (%): 98.6685
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.046992
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 231
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= 10
involuntary context switches= 0

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node34 on Tue Feb 27 08:21:50 UTC 2007

IDJOB= 311106
IDBENCH= 20305
IDSOLVER= 103
FILE ID= node34/311106-1172564510

PBS_JOBID= 3971891

Free space on /tmp= 66560 MiB

SOLVER NAME= saps 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/311106-1172564510/saps /tmp/evaluation/311106-1172564510/instance-311106-1172564510.cnf  691766716   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node34/watcher-311106-1172564510 -o ROOT/results/node34/solver-311106-1172564510 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311106-1172564510/saps /tmp/evaluation/311106-1172564510/instance-311106-1172564510.cnf  691766716   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  c77e3fe2797ba24ba2baccdc1afa561c

RANDOM SEED= 691766716

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node34.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		: 3000.234
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		: 3000.234
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:       1093200 kB
Buffers:         23704 kB
Cached:         886792 kB
SwapCached:       3220 kB
Active:          49136 kB
Inactive:       871036 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1093200 kB
SwapTotal:     4192956 kB
SwapFree:      4183908 kB
Dirty:            2364 kB
Writeback:           0 kB
Mapped:          15192 kB
Slab:            28560 kB
Committed_AS:   566456 kB
PageTables:       1396 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= 66560 MiB

End job on node34 on Tue Feb 27 08:21:50 UTC 2007