Trace number 310913

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 1.67674 1.68003

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1762612346-15-SAT.cnf
MD5SUMe5673a7c266f877ed2c58f7b531e89ad
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.052991
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)

1.63/1.67	c try 1 flip j 1300728
1.63/1.67	c A solution is found
1.63/1.67	s SATISFIABLE
1.63/1.67	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 -467 468 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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 
1.63/1.67	v 0 
1.63/1.67	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/node30/watcher-310913-1172562889 -o ROOT/results/node30/solver-310913-1172562889 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310913-1172562889/Hybrid1 /tmp/evaluation/310913-1172562889/instance-310913-1172562889.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 0.98 0.99 3/77 21191
/proc/meminfo: memFree=1806696/2055920 swapFree=4143328/4192956
[pid=21191] ppid=21189 vsize=244720 CPUtime=0
/proc/21191/stat : 21191 (Hybrid1) R 21189 21191 20262 0 -1 4194304 100 0 0 0 0 0 0 0 18 0 1 0 250052974 250593280 84 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134521553 0 0 4096 0 0 0 0 17 1 0 0
/proc/21191/statm: 61180 84 39 103 0 60684 0

[startup+0.106599 s]
/proc/loadavg: 0.97 0.98 0.99 3/77 21191
/proc/meminfo: memFree=1806696/2055920 swapFree=4143328/4192956
[pid=21191] ppid=21189 vsize=246664 CPUtime=0.1
/proc/21191/stat : 21191 (Hybrid1) R 21189 21191 20262 0 -1 4194304 279 0 0 0 10 0 0 0 18 0 1 0 250052974 252583936 259 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134545040 0 0 4096 0 0 0 0 17 1 0 0
/proc/21191/statm: 61666 259 44 103 0 61170 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246664

[startup+0.514658 s]
/proc/loadavg: 0.97 0.98 0.99 3/77 21191
/proc/meminfo: memFree=1806696/2055920 swapFree=4143328/4192956
[pid=21191] ppid=21189 vsize=246664 CPUtime=0.51
/proc/21191/stat : 21191 (Hybrid1) R 21189 21191 20262 0 -1 4194304 279 0 0 0 51 0 0 0 22 0 1 0 250052974 252583936 259 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551672 0 0 4096 0 0 0 0 17 1 0 0
/proc/21191/statm: 61666 259 44 103 0 61170 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 246664

[startup+1.33478 s]
/proc/loadavg: 0.97 0.98 0.99 2/78 21192
/proc/meminfo: memFree=1805664/2055920 swapFree=4143328/4192956
[pid=21191] ppid=21189 vsize=246664 CPUtime=1.32
/proc/21191/stat : 21191 (Hybrid1) R 21189 21191 20262 0 -1 4194304 279 0 0 0 132 0 0 0 25 0 1 0 250052974 252583936 259 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551597 0 0 4096 0 0 0 0 17 1 0 0
/proc/21191/statm: 61666 259 44 103 0 61170 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 246664

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

[startup+1.64082 s]
/proc/loadavg: 0.97 0.98 0.99 2/78 21192
/proc/meminfo: memFree=1805664/2055920 swapFree=4143328/4192956
[pid=21191] ppid=21189 vsize=246664 CPUtime=1.63
/proc/21191/stat : 21191 (Hybrid1) R 21189 21191 20262 0 -1 4194304 279 0 0 0 163 0 0 0 25 0 1 0 250052974 252583936 259 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134553292 0 0 4096 0 0 0 0 17 1 0 0
/proc/21191/statm: 61666 259 44 103 0 61170 0
Current children cumulated CPU time (s) 1.63
Current children cumulated vsize (KiB) 246664

Child status: 10
Real time (s): 1.68003
CPU time (s): 1.67674
CPU user time (s): 1.67374
CPU system time (s): 0.002999
CPU usage (%): 99.8044
Max. virtual memory (cumulated for all children) (KiB): 246664

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.67374
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= 8
involuntary context switches= 34

runsolver used 0.004999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node30 on Tue Feb 27 07:54:49 UTC 2007

IDJOB= 310913
IDBENCH= 20299
IDSOLVER= 115
FILE ID= node30/310913-1172562889

PBS_JOBID= 3971878

Free space on /tmp= 66553 MiB

SOLVER NAME= Hybrid1 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1762612346-15-SAT.cnf
COMMAND LINE= /tmp/evaluation/310913-1172562889/Hybrid1 /tmp/evaluation/310913-1172562889/instance-310913-1172562889.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node30/watcher-310913-1172562889 -o ROOT/results/node30/solver-310913-1172562889 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310913-1172562889/Hybrid1 /tmp/evaluation/310913-1172562889/instance-310913-1172562889.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  e5673a7c266f877ed2c58f7b531e89ad

RANDOM SEED= 681388357

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node30.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		: 3000.270
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		: 3000.270
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:       1807104 kB
Buffers:         35548 kB
Cached:         139136 kB
SwapCached:      17280 kB
Active:         129708 kB
Inactive:        79864 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1807104 kB
SwapTotal:     4192956 kB
SwapFree:      4143328 kB
Dirty:            6240 kB
Writeback:           0 kB
Mapped:          30240 kB
Slab:            24656 kB
Committed_AS:   738176 kB
PageTables:       1884 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= 66553 MiB

End job on node30 on Tue Feb 27 07:54:51 UTC 2007