Trace number 310790

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 0.046992 0.0488521

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1665384822-14-SAT.cnf
MD5SUMbe7dc6f6bf5d0d6359adfd321a4b6af2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.036993
Satisfiable
(Un)Satisfiability was proved
Number of variables1295
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 try 1 flip j 24716
0.00/0.04	c A solution is found
0.00/0.04	s SATISFIABLE
0.00/0.04	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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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 
0.00/0.04	v 0 
0.00/0.04	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/node25/watcher-310790-1172561940 -o ROOT/results/node25/solver-310790-1172561940 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310790-1172561940/Hybrid1 /tmp/evaluation/310790-1172561940/instance-310790-1172561940.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: 0.92 0.98 0.99 3/64 9680
/proc/meminfo: memFree=1845352/2055920 swapFree=4183552/4192956
[pid=9680] ppid=9678 vsize=244720 CPUtime=0
/proc/9680/stat : 9680 (Hybrid1) R 9678 9680 9214 0 -1 4194304 98 0 0 0 0 0 0 0 19 0 1 0 50816192 250593280 82 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134706409 0 0 4096 0 0 0 0 17 1 0 0
/proc/9680/statm: 61180 82 39 103 0 60684 0

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

Child status: 10
Real time (s): 0.0488521
CPU time (s): 0.046992
CPU user time (s): 0.043993
CPU system time (s): 0.002999
CPU usage (%): 96.1924
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.043993
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 292
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= 7
involuntary context switches= 1

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node25 on Tue Feb 27 07:39:00 UTC 2007

IDJOB= 310790
IDBENCH= 20296
IDSOLVER= 115
FILE ID= node25/310790-1172561940

PBS_JOBID= 3971879

Free space on /tmp= 66555 MiB

SOLVER NAME= Hybrid1 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1665384822-14-SAT.cnf
COMMAND LINE= /tmp/evaluation/310790-1172561940/Hybrid1 /tmp/evaluation/310790-1172561940/instance-310790-1172561940.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-310790-1172561940 -o ROOT/results/node25/solver-310790-1172561940 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310790-1172561940/Hybrid1 /tmp/evaluation/310790-1172561940/instance-310790-1172561940.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  be7dc6f6bf5d0d6359adfd321a4b6af2

RANDOM SEED= 547985036

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node25.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		: 3000.232
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		: 3000.232
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:       1845824 kB
Buffers:         30960 kB
Cached:         132076 kB
SwapCached:       3632 kB
Active:          94628 kB
Inactive:        78260 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1845824 kB
SwapTotal:     4192956 kB
SwapFree:      4183552 kB
Dirty:            6168 kB
Writeback:           0 kB
Mapped:          15276 kB
Slab:            23252 kB
Committed_AS:   116380 kB
PageTables:       1472 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= 66555 MiB

End job on node25 on Tue Feb 27 07:39:00 UTC 2007