Trace number 311123

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
CMUSAT BASE 2007-02-08SAT 1.18582 1.18806

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)

1.13/1.18	c Number of variables:  1295
1.13/1.18	c Number of clauses:    4026
1.13/1.18	c DBreduced=0 GV=103[0]  GL=4129[ 4026,103] Prune=326 decisions=222 restart=0 est=2.62572 DB Impl=17982[0]  
1.13/1.18	c DBreduced=0 GV=154[0]  GL=4179[ 4026,153] Prune=514 decisions=359 restart=1 est=2.7036 DB Impl=26888[0]  
1.13/1.18	c DBreduced=0 GV=227[0]  GL=4252[ 4026,226] Prune=725 decisions=497 restart=2 est=2.70282 DB Impl=42413[0]  
1.13/1.18	c DBreduced=0 GV=338[0]  GL=4363[ 4026,337] Prune=1004 decisions=665 restart=3 est=2.70276 DB Impl=62211[0]  
1.13/1.18	c DBreduced=0 GV=507[0]  GL=4532[ 4026,506] Prune=1432 decisions=924 restart=4 est=2.70288 DB Impl=92040[0]  
1.13/1.18	c DBreduced=0 GV=760[0]  GL=4785[ 4026,759] Prune=2017 decisions=1256 restart=5 est=2.70276 DB Impl=139481[0]  
1.13/1.18	c DBreduced=0 GV=1140[0]  GL=5165[ 4026,1139] Prune=2921 decisions=1780 restart=6 est=2.70288 DB Impl=208422[0]  
1.13/1.18	c DBreduced=0 GV=1709[0]  GL=5734[ 4026,1708] Prune=4249 decisions=2539 restart=7 est=2.703 DB Impl=308868[0]  
1.13/1.18	c DBreduced=2 GV=2564[0]  GL=5345[ 4026,1319] Prune=6245 decisions=3680 restart=8 est=2.70318 DB Impl=456783[0]  
1.13/1.18	c DBreduced=3 GV=3845[0]  GL=5639[ 4026,1613] Prune=9153 decisions=5307 restart=9 est=2.70324 DB Impl=697210[0]  
1.13/1.18	c DBreduced=4 GV=5769[0]  GL=6466[ 4026,2440] Prune=13619 decisions=7849 restart=10 est=2.70318 DB Impl=1039667[0]  
1.13/1.18	c DBreduced=6 GV=8651[0]  GL=6953[ 4026,2927] Prune=20267 decisions=11615 restart=11 est=2.703 DB Impl=1584658[0]  
1.13/1.18	c #Total time (in seconds): 1.18382
1.13/1.18	c #Memory used (in MB): 3.48438
1.13/1.18	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 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-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 
1.13/1.18	c 
1.13/1.18	s SATISFIABLE

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/node13/watcher-311123-1172564540 -o ROOT/results/node13/solver-311123-1172564540 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311123-1172564540/cmusat_base /tmp/evaluation/311123-1172564540/instance-311123-1172564540.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: 0.97 0.97 0.98 3/77 24905
/proc/meminfo: memFree=1711712/2055920 swapFree=4192812/4192956
[pid=24905] ppid=24903 vsize=2320 CPUtime=0
/proc/24905/stat : 24905 (cmusat_base) R 24903 24905 23333 0 -1 4194304 187 0 0 0 0 0 0 0 18 0 1 0 276408455 2375680 169 18446744073709551615 134512640 135500113 4294956688 18446744073709551615 135080268 0 0 4096 35 0 0 0 17 1 0 0
/proc/24905/statm: 580 170 90 241 0 336 0

[startup+0.107656 s]
/proc/loadavg: 0.97 0.97 0.98 3/77 24905
/proc/meminfo: memFree=1711712/2055920 swapFree=4192812/4192956
[pid=24905] ppid=24903 vsize=2868 CPUtime=0.1
/proc/24905/stat : 24905 (cmusat_base) R 24903 24905 23333 0 -1 4194304 325 0 0 0 10 0 0 0 18 0 1 0 276408455 2936832 307 18446744073709551615 134512640 135500113 4294956688 18446744073709551615 135064935 0 0 4096 35 0 0 0 17 1 0 0
/proc/24905/statm: 717 307 109 241 0 473 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2868

[startup+0.519709 s]
/proc/loadavg: 0.97 0.97 0.98 3/77 24905
/proc/meminfo: memFree=1711712/2055920 swapFree=4192812/4192956
[pid=24905] ppid=24903 vsize=3280 CPUtime=0.51
/proc/24905/stat : 24905 (cmusat_base) R 24903 24905 23333 0 -1 4194304 433 0 0 0 51 0 0 0 22 0 1 0 276408455 3358720 415 18446744073709551615 134512640 135500113 4294956688 18446744073709551615 134559989 0 0 4096 35 0 0 0 17 1 0 0
/proc/24905/statm: 820 415 109 241 0 576 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3280

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

[startup+0.828757 s]
/proc/loadavg: 0.97 0.97 0.98 3/77 24905
/proc/meminfo: memFree=1711712/2055920 swapFree=4192812/4192956
[pid=24905] ppid=24903 vsize=3412 CPUtime=0.82
/proc/24905/stat : 24905 (cmusat_base) R 24903 24905 23333 0 -1 4194304 469 0 0 0 82 0 0 0 25 0 1 0 276408455 3493888 451 18446744073709551615 134512640 135500113 4294956688 18446744073709551615 134560002 0 0 4096 35 0 0 0 17 1 0 0
/proc/24905/statm: 853 451 109 241 0 609 0
Current children cumulated CPU time (s) 0.82
Current children cumulated vsize (KiB) 3412

[startup+1.03278 s]
/proc/loadavg: 0.97 0.97 0.98 3/77 24905
/proc/meminfo: memFree=1711712/2055920 swapFree=4192812/4192956
[pid=24905] ppid=24903 vsize=3568 CPUtime=1.03
/proc/24905/stat : 24905 (cmusat_base) R 24903 24905 23333 0 -1 4194304 496 0 0 0 103 0 0 0 25 0 1 0 276408455 3653632 478 18446744073709551615 134512640 135500113 4294956688 18446744073709551615 134560092 0 0 4096 35 0 0 0 17 1 0 0
/proc/24905/statm: 892 478 109 241 0 648 0
Current children cumulated CPU time (s) 1.03
Current children cumulated vsize (KiB) 3568

[startup+1.13479 s]
/proc/loadavg: 0.97 0.97 0.98 2/78 24906
/proc/meminfo: memFree=1710104/2055920 swapFree=4192812/4192956
[pid=24905] ppid=24903 vsize=3568 CPUtime=1.13
/proc/24905/stat : 24905 (cmusat_base) R 24903 24905 23333 0 -1 4194304 515 0 0 0 113 0 0 0 25 0 1 0 276408455 3653632 497 18446744073709551615 134512640 135500113 4294956688 18446744073709551615 134559902 0 0 4096 35 0 0 0 17 1 0 0
/proc/24905/statm: 892 497 109 241 0 648 0
Current children cumulated CPU time (s) 1.13
Current children cumulated vsize (KiB) 3568

Child status: 10
Real time (s): 1.18806
CPU time (s): 1.18582
CPU user time (s): 1.18482
CPU system time (s): 0.000999
CPU usage (%): 99.811
Max. virtual memory (cumulated for all children) (KiB): 3568

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.18482
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= 524
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= 26

runsolver used 0.001999 second user time and 0.010998 second system time

The end

Launcher Data (download as text)

Begin job on node13 on Tue Feb 27 08:22:20 UTC 2007

IDJOB= 311123
IDBENCH= 20305
IDSOLVER= 120
FILE ID= node13/311123-1172564540

PBS_JOBID= 3971661

Free space on /tmp= 66554 MiB

SOLVER NAME= CMUSAT BASE 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/311123-1172564540/cmusat_base /tmp/evaluation/311123-1172564540/instance-311123-1172564540.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-311123-1172564540 -o ROOT/results/node13/solver-311123-1172564540 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311123-1172564540/cmusat_base /tmp/evaluation/311123-1172564540/instance-311123-1172564540.cnf            

META MD5SUM SOLVER= af990fb12f8926fdd756b397adb3b5cf
MD5SUM BENCH=  c77e3fe2797ba24ba2baccdc1afa561c

RANDOM SEED= 990195574

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node13.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		: 3000.236
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		: 3000.236
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:       1712120 kB
Buffers:         42304 kB
Cached:         183320 kB
SwapCached:          0 kB
Active:         239352 kB
Inactive:        40844 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1712120 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2648 kB
Writeback:           0 kB
Mapped:          73472 kB
Slab:            49112 kB
Committed_AS:  1082584 kB
PageTables:       1744 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= 66554 MiB

End job on node13 on Tue Feb 27 08:22:21 UTC 2007