Trace number 310799

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
adaptg2wsat+ 2007-02-08SAT 0.043992 0.0445039

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 29135
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 -462 463 464 465 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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/node55/watcher-310799-1172561965 -o ROOT/results/node55/solver-310799-1172561965 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310799-1172561965/adaptg2wsat+ /tmp/evaluation/310799-1172561965/instance-310799-1172561965.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: 0.99 1.00 0.93 3/64 30820
/proc/meminfo: memFree=1887176/2055920 swapFree=4183516/4192956
[pid=30820] ppid=30818 vsize=215024 CPUtime=0
/proc/30820/stat : 30820 (adaptg2wsat+) R 30818 30820 29346 0 -1 4194304 98 0 0 0 0 0 0 0 18 0 1 0 276152967 220184576 82 18446744073709551615 134512640 134930140 4294956704 18446744073709551615 134660635 0 0 4096 0 0 0 0 17 1 0 0
/proc/30820/statm: 53756 82 38 101 0 53262 0

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

Child status: 10
Real time (s): 0.0445039
CPU time (s): 0.043992
CPU user time (s): 0.041993
CPU system time (s): 0.001999
CPU usage (%): 98.8497
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.041993
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= 261
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= 0

runsolver used 0.001999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node55 on Tue Feb 27 07:39:25 UTC 2007

IDJOB= 310799
IDBENCH= 20296
IDSOLVER= 124
FILE ID= node55/310799-1172561965

PBS_JOBID= 3971859

Free space on /tmp= 66554 MiB

SOLVER NAME= adaptg2wsat+ 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/310799-1172561965/adaptg2wsat+ /tmp/evaluation/310799-1172561965/instance-310799-1172561965.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node55/watcher-310799-1172561965 -o ROOT/results/node55/solver-310799-1172561965 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310799-1172561965/adaptg2wsat+ /tmp/evaluation/310799-1172561965/instance-310799-1172561965.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  be7dc6f6bf5d0d6359adfd321a4b6af2

RANDOM SEED= 144498063

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node55.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		: 3000.247
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		: 3000.247
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:       1887584 kB
Buffers:         19624 kB
Cached:         101672 kB
SwapCached:       3824 kB
Active:          67084 kB
Inactive:        64388 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1887584 kB
SwapTotal:     4192956 kB
SwapFree:      4183516 kB
Dirty:            6320 kB
Writeback:           0 kB
Mapped:          15368 kB
Slab:            22992 kB
Committed_AS:   832368 kB
PageTables:       1380 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 node55 on Tue Feb 27 07:39:26 UTC 2007