Trace number 372032

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 0.065989 0.0675039

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 benchmark0.039993
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)

0.00/0.06	c 
0.00/0.06	c UBCSAT version 1.1.0rr
0.00/0.06	c 
0.00/0.06	c http://www.satlib.org/ubcsat
0.00/0.06	c 
0.00/0.06	c ubcsat -h for help
0.00/0.06	c 
0.00/0.06	c  -runs 1 
0.00/0.06	c  -cutoff 4294967295 
0.00/0.06	c  -timeout 0.000000 
0.00/0.06	c  -gtimeout 0.000000 
0.00/0.06	c  -noimprove 0 
0.00/0.06	c  -target 0 
0.00/0.06	c  -wtarget 0.000000 
0.00/0.06	c  -seed 726799228 
0.00/0.06	c  -solve 0 
0.00/0.06	c  -find,-numsol 0 
0.00/0.06	c  -findunique 0 
0.00/0.06	c  -srestart 0 
0.00/0.06	c  -prestart 0.000000 
0.00/0.06	c  -drestart 0 
0.00/0.06	c 
0.00/0.06	c  -alpha 1.126000 
0.00/0.06	c  -rho 0.666000 
0.00/0.06	c  -ps 0.033000 
0.00/0.06	c  -wp 0.060000 
0.00/0.06	c  -sapsthresh -0.100000 
0.00/0.06	c 
0.00/0.06	s SATISFIABLE
0.00/0.06	v  1 2 -3 4 -5 6 -7 8 9 10
0.00/0.06	v  -11 12 -13 -14 -15 -16 17 -18 19 20
0.00/0.06	v  -21 22 23 -24 25 26 -27 28 -29 30
0.00/0.06	v  31 -32 -33 -34 35 36 37 38 39 40
0.00/0.06	v  41 42 -43 -44 -45 46 47 48 49 50
0.00/0.06	v  51 52 53 54 55 56 57 58 59 60
0.00/0.06	v  61 -62 63 -64 -65 66 67 68 -69 70
0.00/0.06	v  71 72 -73 -74 -75 -76 77 78 79 80
0.00/0.06	v  81 82 -83 -84 -85 86 87 -88 -89 -90
0.00/0.06	v  -91 92 -93 -94 -95 -96 -97 98 -99 -100
0.00/0.06	v  101 -102 103 -104 105 106 -107 -108 -109 110
0.00/0.06	v  -111 112 -113 -114 -115 116 117 -118 -119 -120
0.00/0.06	v  121 -122 123 124 -125 -126 127 128 -129 130
0.00/0.06	v  -131 -132 133 134 -135 136 -137 138 139 -140
0.00/0.06	v  141 -142 -143 144 -145 146 -147 -148 149 150
0.00/0.06	v  151 152 -153 -154 155 156 -157 -158 159 160
0.00/0.06	v  -161 -162 163 -164 -165 -166 167 -168 169 -170
0.00/0.06	v  171 -172 173 174 175 -176 -177 178 179 -180
0.00/0.06	v  181 182 -183 184 185 -186 187 188 189 190
0.00/0.06	v  191 192 -193 194 -195 196 -197 198 199 200
0.00/0.06	v  -201 202 -203 204 205 206 207 -208 -209 -210
0.00/0.06	v  -211 212 -213 214 -215 -216 217 218 219 220
0.00/0.06	v  -221 -222 -223 224 -225 -226 227 228 229 -230
0.00/0.06	v  231 -232 -233 234 -235 -236 -237 -238 239 240
0.00/0.06	v  241 242 243 -244 -245 -246 247 248 249 250
0.00/0.06	v  -251 252 253 254 255 -256 -257 258 259 260
0.00/0.06	v  -261 -262 -263 -264 265 266 267 -268 -269 270
0.00/0.06	v  271 -272 -273 274 -275 -276 277 -278 -279 -280
0.00/0.06	v  281 282 283 -284 -285 286 287 288 289 -290
0.00/0.06	v  -291 292 293 294 295 -296 297 -298 299 300
0.00/0.06	v  301 302 303 304 -305 306 -307 -308 -309 310
0.00/0.06	v  311 -312 313 314 -315 316 -317 -318 -319 -320
0.00/0.06	v  321 -322 323 324 -325 -326 -327 -328 -329 -330
0.00/0.06	v  331 -332 -333 -334 -335 -336 -337 -338 -339 -340
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0.00/0.06	v  551 552 553 554 555 556 -557 558 559 -560
0.00/0.06	v  561 562 -563 564 -565 -566 -567 -568 569 -570
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0.00/0.06	v  -671 -672 673 -674 -675 -676 -677 678 -679 680
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0.00/0.06	v  701 702 703 -704 -705 -706 707 -708 709 -710
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0.00/0.06	v  721 -722 -723 724 725 726 727 728 729 -730
0.00/0.06	v  -731 -732 733 -734 735 736 737 738 739 740
0.00/0.06	v  741 -742 743 744 -745 -746 -747 748 749 -750
0.00/0.06	v  751 -752 753 754 -755 756 757 758 -759 -760
0.00/0.06	v  761 762 -763 -764 765 -766 767 768 -769 770
0.00/0.06	v  -771 772 -773 -774 775 776 777 778 779 780
0.00/0.06	v  781 -782 783 784 -785 -786 787 -788 789 -790
0.00/0.06	v  791 792 793 -794 795 -796 797 -798 799 800
0.00/0.06	v  -801 -802 -803 804 -805 -806 807 808 -809 -810
0.00/0.06	v  811 -812 -813 814 815 -816 817 818 819 -820
0.00/0.06	v  821 -822 -823 824 -825 -826 827 -828 829 -830
0.00/0.06	v  831 832 833 834 835 -836 -837 838 839 -840
0.00/0.06	v  841 -842 -843 844 845 846 847 -848 -849 -850
0.00/0.06	v  -851 852 853 854 -855 856 -857 -858 -859 860
0.00/0.06	v  -861 -862 863 864 865 -866 -867 868 869 -870
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0.00/0.06	v  -881 882 -883 884 885 -886 887 -888 889 -890
0.00/0.06	v  891 -892 -893 894 895 -896 -897 898 899 900
0.00/0.06	v  901 -902 -903 904 -905 -906 907 -908 -909 -910
0.00/0.06	v  911 912 -913 914 -915 916 -917 918 -919 920
0.00/0.06	v  -921 922 923 -924 -925 -926 -927 928 929 -930
0.00/0.06	v  -931 -932 933 -934 935 -936 937 -938 -939 940
0.00/0.06	v  -941 -942 -943 944 945 -946 947 948 949 -950
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0.00/0.06	v  -961 962 963 -964 -965 -966 967 968 969 970
0.00/0.06	v  -971 -972 973 -974 975 -976 -977 -978 979 -980
0.00/0.06	v  981 982 983 -984 -985 -986 -987 988 989 990
0.00/0.06	v  991 -992 -993 -994 -995 -996 997 998 -999 1000
0.00/0.06	v  1001 -1002 -1003 -1004 -1005 -1006 -1007 1008 -1009 1010
0.00/0.06	v  -1011 -1012 -1013 1014 -1015 1016 -1017 1018 1019 -1020
0.00/0.06	v  -1021 1022 -1023 1024 -1025 1026 -1027 1028 1029 1030
0.00/0.06	v  -1031 1032 -1033 -1034 -1035 -1036 1037 -1038 1039 -1040
0.00/0.06	v  -1041 1042 -1043 1044 -1045 1046 -1047 -1048 1049 1050
0.00/0.06	v  -1051 1052 1053 -1054 1055 1056 1057 1058 1059 -1060
0.00/0.06	v  1061 -1062 1063 1064 1065 -1066 1067 1068 1069 1070
0.00/0.06	v  1071 1072 1073 1074 -1075 -1076 1077 1078 -1079 -1080
0.00/0.06	v  1081 1082 1083 1084 1085 -1086 1087 -1088 -1089 1090
0.00/0.06	v  -1091 -1092 1093 -1094 1095 -1096 -1097 1098 -1099 1100
0.00/0.06	v  -1101 -1102 -1103 -1104 1105 1106 1107 -1108 1109 -1110
0.00/0.06	v  -1111 -1112 1113 -1114 1115 1116 1117 1118 1119 -1120
0.00/0.06	v  -1121 1122 -1123 -1124 1125 1126 1127 -1128 1129 1130
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0.00/0.06	v  -1141 1142 1143 -1144 -1145 1146 1147 -1148 -1149 -1150
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0.00/0.06	v  -1171 1172 -1173 1174 -1175 1176 1177 1178 1179 1180
0.00/0.06	v  1181 1182 1183 -1184 -1185 1186 -1187 1188 -1189 -1190
0.00/0.06	v  1191 1192 -1193 1194 1195 1196 1197 -1198 -1199 -1200
0.00/0.06	v  -1201 -1202 -1203 1204 1205 -1206 -1207 1208 -1209 1210
0.00/0.06	v  -1211 -1212 -1213 1214 -1215 1216 1217 1218 1219 -1220
0.00/0.06	v  1221 1222 1223 -1224 1225 -1226 -1227 1228 -1229 1230
0.00/0.06	v  1231 1232 -1233 1234 -1235 1236 -1237 1238 -1239 1240
0.00/0.06	v  1241 -1242 -1243 1244 1245 1246 1247 1248 -1249 -1250
0.00/0.06	v  -1251 -1252 -1253 -1254 -1255 -1256 -1257 1258 1259 1260
0.00/0.06	v  -1261 1262 1263 1264 -1265 1266 -1267 -1268 1269 1270
0.00/0.06	v  -1271 -1272 1273 -1274 -1275 -1276 -1277 1278 -1279 1280
0.00/0.06	v  1281 -1282 -1283 1284 1285 -1286 1287 -1288 -1289 1290
0.00/0.06	v  1291 -1292 1293 -1294 -1295 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node26/watcher-372032-1177549383 -o ROOT/results/node26/solver-372032-1177549383 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/372032-1177549383/sapsrt /tmp/evaluation/372032-1177549383/instance-372032-1177549383.cnf 726799228 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.63 0.87 0.88 3/77 2831
/proc/meminfo: memFree=1529416/2055920 swapFree=4170240/4192956
[pid=2831] ppid=2829 vsize=5160 CPUtime=0
/proc/2831/stat : 2831 (sapsrt) R 2829 2831 1559 0 -1 4194304 157 0 0 0 0 0 0 0 18 0 1 0 202855153 5283840 143 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134799309 0 0 4096 0 0 0 0 17 1 0 0
/proc/2831/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): 0.0675039
CPU time (s): 0.065989
CPU user time (s): 0.06399
CPU system time (s): 0.001999
CPU usage (%): 97.7558
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.06399
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= 232
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= 2

runsolver used 0.003999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node26 on Thu Apr 26 01:03:03 UTC 2007

IDJOB= 372032
IDBENCH= 20305
IDSOLVER= 187
FILE ID= node26/372032-1177549383

PBS_JOBID= 4696595

Free space on /tmp= 66457 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/372032-1177549383/sapsrt /tmp/evaluation/372032-1177549383/instance-372032-1177549383.cnf  726799228       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node26/watcher-372032-1177549383 -o ROOT/results/node26/solver-372032-1177549383 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/372032-1177549383/sapsrt /tmp/evaluation/372032-1177549383/instance-372032-1177549383.cnf  726799228       

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  c77e3fe2797ba24ba2baccdc1afa561c

RANDOM SEED= 726799228

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node26.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		: 3000.213
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		: 3000.213
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:       1529824 kB
Buffers:         50868 kB
Cached:         380188 kB
SwapCached:       3532 kB
Active:         299448 kB
Inactive:       155780 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1529824 kB
SwapTotal:     4192956 kB
SwapFree:      4170240 kB
Dirty:            2424 kB
Writeback:           0 kB
Mapped:          31384 kB
Slab:            56520 kB
Committed_AS:  1246492 kB
PageTables:       1720 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= 66457 MiB

End job on node26 on Thu Apr 26 01:03:04 UTC 2007