Trace number 310341

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
FH 2007-02-08SAT 0.199968 0.201549

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)

0.10/0.19	c try 1 flip j 118608
0.10/0.19	c A solution is found
0.10/0.19	s SATISFIABLE
0.10/0.19	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 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-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 
0.10/0.19	v 0 
0.10/0.19	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-310341-1172558228 -o ROOT/results/node12/solver-310341-1172558228 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310341-1172558228/FH /tmp/evaluation/310341-1172558228/instance-310341-1172558228.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: 6.52 6.12 3.85 3/77 21476
/proc/meminfo: memFree=1488864/2055920 swapFree=4154952/4192956
[pid=21476] ppid=21474 vsize=244720 CPUtime=0
/proc/21476/stat : 21476 (FH) R 21474 21476 21181 0 -1 4194304 98 0 0 0 0 0 0 0 18 0 1 0 275777247 250593280 82 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134521553 0 0 4096 0 0 0 0 17 1 0 0
/proc/21476/statm: 61180 82 36 103 0 60684 0

[startup+0.107443 s]
/proc/loadavg: 6.52 6.12 3.85 3/77 21476
/proc/meminfo: memFree=1488864/2055920 swapFree=4154952/4192956
[pid=21476] ppid=21474 vsize=246664 CPUtime=0.1
/proc/21476/stat : 21476 (FH) R 21474 21476 21181 0 -1 4194304 284 0 0 0 10 0 0 0 18 0 1 0 275777247 252583936 264 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134553554 0 0 4096 0 0 0 0 17 1 0 0
/proc/21476/statm: 61666 264 40 103 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+0.107443 s]
/proc/loadavg: 6.52 6.12 3.85 3/77 21476
/proc/meminfo: memFree=1488864/2055920 swapFree=4154952/4192956
[pid=21476] ppid=21474 vsize=246664 CPUtime=0.1
/proc/21476/stat : 21476 (FH) R 21474 21476 21181 0 -1 4194304 284 0 0 0 10 0 0 0 18 0 1 0 275777247 252583936 264 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134553554 0 0 4096 0 0 0 0 17 1 0 0
/proc/21476/statm: 61666 264 40 103 0 61170 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246664

Child status: 10
Real time (s): 0.201549
CPU time (s): 0.199968
CPU user time (s): 0.198969
CPU system time (s): 0.000999
CPU usage (%): 99.2156
Max. virtual memory (cumulated for all children) (KiB): 246664

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.198969
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 297
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= 4

runsolver used 0.004999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node12 on Tue Feb 27 06:37:08 UTC 2007

IDJOB= 310341
IDBENCH= 20284
IDSOLVER= 117
FILE ID= node12/310341-1172558228

PBS_JOBID= 3971667

Free space on /tmp= 66551 MiB

SOLVER NAME= FH 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/310341-1172558228/FH /tmp/evaluation/310341-1172558228/instance-310341-1172558228.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node12/watcher-310341-1172558228 -o ROOT/results/node12/solver-310341-1172558228 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310341-1172558228/FH /tmp/evaluation/310341-1172558228/instance-310341-1172558228.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  19894e180d089892cac2d8b0cea80a17

RANDOM SEED= 615188405

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:       1489272 kB
Buffers:         61128 kB
Cached:         406068 kB
SwapCached:      18256 kB
Active:         266984 kB
Inactive:       226740 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1489272 kB
SwapTotal:     4192956 kB
SwapFree:      4154952 kB
Dirty:            6312 kB
Writeback:           0 kB
Mapped:          30196 kB
Slab:            58528 kB
Committed_AS:  1141228 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 06:37:08 UTC 2007