Trace number 310339

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
Hybrid1 2007-02-08SAT 0.473927 0.476503

General information on the benchmark

Namerandom/2+p/p0.9/v1170/
unif2p-p0.9-v1170-c4235-S1091800488-20-SAT.cnf
MD5SUM19894e180d089892cac2d8b0cea80a17
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.199968
Satisfiable
(Un)Satisfiability was proved
Number of variables1170
Number of clauses4234
Sum of the clauses size12279
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2423
Number of clauses of size 33811
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.41/0.47	c try 1 flip j 304047
0.41/0.47	c A solution is found
0.41/0.47	s SATISFIABLE
0.41/0.47	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 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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 
0.41/0.47	v 0 
0.41/0.47	c Done (mycputime is 0.000 seconds)

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/node12/watcher-310339-1172558220 -o ROOT/results/node12/solver-310339-1172558220 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310339-1172558220/Hybrid1 /tmp/evaluation/310339-1172558220/instance-310339-1172558220.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: 7.00 6.21 3.86 3/77 21389
/proc/meminfo: memFree=1489072/2055920 swapFree=4154952/4192956
[pid=21389] ppid=21387 vsize=244720 CPUtime=0
/proc/21389/stat : 21389 (Hybrid1) R 21387 21389 21181 0 -1 4194304 101 0 0 0 0 0 0 0 18 0 1 0 275776419 250593280 85 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134521553 0 0 4096 0 0 0 0 17 1 0 0
/proc/21389/statm: 61180 85 39 103 0 60684 0

[startup+0.106834 s]
/proc/loadavg: 7.00 6.21 3.86 3/77 21389
/proc/meminfo: memFree=1489072/2055920 swapFree=4154952/4192956
[pid=21389] ppid=21387 vsize=246664 CPUtime=0.1
/proc/21389/stat : 21389 (Hybrid1) R 21387 21389 21181 0 -1 4194304 288 0 0 0 10 0 0 0 18 0 1 0 275776419 252583936 268 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134552328 0 0 4096 0 0 0 0 17 1 0 0
/proc/21389/statm: 61666 268 44 103 0 61170 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246664

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

[startup+0.412888 s]
/proc/loadavg: 7.00 6.21 3.86 3/77 21389
/proc/meminfo: memFree=1489072/2055920 swapFree=4154952/4192956
[pid=21389] ppid=21387 vsize=246664 CPUtime=0.41
/proc/21389/stat : 21389 (Hybrid1) R 21387 21389 21181 0 -1 4194304 288 0 0 0 41 0 0 0 21 0 1 0 275776419 252583936 268 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134544965 0 0 4096 0 0 0 0 17 1 0 0
/proc/21389/statm: 61666 268 44 103 0 61170 0
Current children cumulated CPU time (s) 0.41
Current children cumulated vsize (KiB) 246664

Child status: 10
Real time (s): 0.476503
CPU time (s): 0.473927
CPU user time (s): 0.473927
CPU system time (s): 0
CPU usage (%): 99.4594
Max. virtual memory (cumulated for all children) (KiB): 246664

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.473927
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= 301
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= 10

runsolver used 0.001999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node12 on Tue Feb 27 06:37:00 UTC 2007

IDJOB= 310339
IDBENCH= 20284
IDSOLVER= 115
FILE ID= node12/310339-1172558220

PBS_JOBID= 3971667

Free space on /tmp= 66551 MiB

SOLVER NAME= Hybrid1 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v1170/unif2p-p0.9-v1170-c4235-S1091800488-20-SAT.cnf
COMMAND LINE= /tmp/evaluation/310339-1172558220/Hybrid1 /tmp/evaluation/310339-1172558220/instance-310339-1172558220.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node12/watcher-310339-1172558220 -o ROOT/results/node12/solver-310339-1172558220 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310339-1172558220/Hybrid1 /tmp/evaluation/310339-1172558220/instance-310339-1172558220.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  19894e180d089892cac2d8b0cea80a17

RANDOM SEED= 51031924

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node12.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		: 3000.285
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		: 3000.285
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:       1489544 kB
Buffers:         61104 kB
Cached:         406024 kB
SwapCached:      18256 kB
Active:         266896 kB
Inactive:       226764 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1489544 kB
SwapTotal:     4192956 kB
SwapFree:      4154952 kB
Dirty:            6208 kB
Writeback:           0 kB
Mapped:          30188 kB
Slab:            58372 kB
Committed_AS:  1137684 kB
PageTables:       1692 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= 66551 MiB

End job on node12 on Tue Feb 27 06:37:00 UTC 2007