Trace number 311105

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
sapsrt 2007-02-08SAT 0.038994 0.041737

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 257984459 
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 1.126000 
0.00/0.04	c  -rho 0.666000 
0.00/0.04	c  -ps 0.033000 
0.00/0.04	c  -wp 0.060000 
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
0.00/0.04	v  -371 372 373 374 375 376 377 378 -379 -380
0.00/0.04	v  -381 -382 -383 -384 385 386 387 388 -389 390
0.00/0.04	v  -391 -392 393 -394 -395 396 397 398 -399 400
0.00/0.04	v  401 402 -403 404 -405 -406 407 408 -409 410
0.00/0.04	v  -411 -412 -413 -414 415 416 417 418 419 420
0.00/0.04	v  -421 422 423 424 -425 -426 -427 428 -429 430
0.00/0.04	v  431 -432 433 434 -435 -436 -437 438 -439 440
0.00/0.04	v  -441 442 443 -444 -445 446 -447 -448 449 -450
0.00/0.04	v  451 452 453 454 455 456 -457 458 -459 460
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
0.00/0.04	v  -491 -492 493 -494 495 496 -497 -498 499 -500
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
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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-311105-1172564509 -o ROOT/results/node34/solver-311105-1172564509 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311105-1172564509/sapsrt /tmp/evaluation/311105-1172564509/instance-311105-1172564509.cnf 257984459 

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 23301
/proc/meminfo: memFree=1092872/2055920 swapFree=4183908/4192956
[pid=23301] ppid=23299 vsize=5160 CPUtime=0
/proc/23301/stat : 23301 (sapsrt) R 23299 23301 23146 0 -1 4194304 158 0 0 0 0 0 0 0 18 0 1 0 250214673 5283840 143 18446744073709551615 134512640 135167692 4294956704 18446744073709551615 134799309 0 0 4096 0 0 0 0 17 1 0 0
/proc/23301/statm: 1290 143 78 159 0 1129 0

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

Child status: 10
Real time (s): 0.041737
CPU time (s): 0.038994
CPU user time (s): 0.038994
CPU system time (s): 0
CPU usage (%): 93.428
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.038994
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 234
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= 1

runsolver used 0.000999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node34 on Tue Feb 27 08:21:49 UTC 2007

IDJOB= 311105
IDBENCH= 20305
IDSOLVER= 102
FILE ID= node34/311105-1172564509

PBS_JOBID= 3971891

Free space on /tmp= 66560 MiB

SOLVER NAME= sapsrt 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/311105-1172564509/sapsrt /tmp/evaluation/311105-1172564509/instance-311105-1172564509.cnf  257984459       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node34/watcher-311105-1172564509 -o ROOT/results/node34/solver-311105-1172564509 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311105-1172564509/sapsrt /tmp/evaluation/311105-1172564509/instance-311105-1172564509.cnf  257984459       

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  c77e3fe2797ba24ba2baccdc1afa561c

RANDOM SEED= 257984459

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:       1093344 kB
Buffers:         23688 kB
Cached:         886808 kB
SwapCached:       3220 kB
Active:          46968 kB
Inactive:       873172 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1093344 kB
SwapTotal:     4192956 kB
SwapFree:      4183908 kB
Dirty:            2368 kB
Writeback:           0 kB
Mapped:          15188 kB
Slab:            28492 kB
Committed_AS:   566444 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 08:21:49 UTC 2007