Trace number 311079

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
FH 2007-02-08SAT 0.824874 0.824913

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1209647106-12-SAT.cnf
MD5SUM5b71a13667daed42fef777f7d5fe2376
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05599
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)

0.81/0.82	c try 1 flip j 575112
0.81/0.82	c A solution is found
0.81/0.82	s SATISFIABLE
0.81/0.82	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 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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 
0.81/0.82	v 0 
0.81/0.82	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/node17/watcher-311079-1172564439 -o ROOT/results/node17/solver-311079-1172564439 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311079-1172564439/FH /tmp/evaluation/311079-1172564439/instance-311079-1172564439.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 0.99 0.99 3/77 20579
/proc/meminfo: memFree=1462704/2055920 swapFree=4192812/4192956
[pid=20579] ppid=20577 vsize=244720 CPUtime=0
/proc/20579/stat : 20579 (FH) R 20577 20579 18745 0 -1 4194304 98 0 0 0 0 0 0 0 18 0 1 0 276398235 250593280 82 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134521546 0 0 4096 0 0 0 0 17 1 0 0
/proc/20579/statm: 61180 83 36 103 0 60684 0

[startup+0.106514 s]
/proc/loadavg: 0.99 0.99 0.99 3/77 20579
/proc/meminfo: memFree=1462704/2055920 swapFree=4192812/4192956
[pid=20579] ppid=20577 vsize=246664 CPUtime=0.1
/proc/20579/stat : 20579 (FH) R 20577 20579 18745 0 -1 4194304 275 0 0 0 10 0 0 0 18 0 1 0 276398235 252583936 255 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134547044 0 0 4096 0 0 0 0 17 1 0 0
/proc/20579/statm: 61666 255 40 103 0 61170 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246664

[startup+0.514556 s]
/proc/loadavg: 0.99 0.99 0.99 3/77 20579
/proc/meminfo: memFree=1462704/2055920 swapFree=4192812/4192956
[pid=20579] ppid=20577 vsize=246664 CPUtime=0.51
/proc/20579/stat : 20579 (FH) R 20577 20579 18745 0 -1 4194304 275 0 0 0 51 0 0 0 22 0 1 0 276398235 252583936 255 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134545824 0 0 4096 0 0 0 0 17 1 0 0
/proc/20579/statm: 61666 255 40 103 0 61170 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 246664

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

[startup+0.820588 s]
/proc/loadavg: 0.99 0.99 0.99 3/77 20579
/proc/meminfo: memFree=1462704/2055920 swapFree=4192812/4192956
[pid=20579] ppid=20577 vsize=246664 CPUtime=0.81
/proc/20579/stat : 20579 (FH) R 20577 20579 18745 0 -1 4194304 275 0 0 0 81 0 0 0 25 0 1 0 276398235 252583936 255 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134554353 0 0 4096 0 0 0 0 17 1 0 0
/proc/20579/statm: 61666 255 40 103 0 61170 0
Current children cumulated CPU time (s) 0.81
Current children cumulated vsize (KiB) 246664

Child status: 10
Real time (s): 0.824913
CPU time (s): 0.824874
CPU user time (s): 0.821875
CPU system time (s): 0.002999
CPU usage (%): 99.9953
Max. virtual memory (cumulated for all children) (KiB): 246664

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.821875
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= 288
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= 17

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node17 on Tue Feb 27 08:20:40 UTC 2007

IDJOB= 311079
IDBENCH= 20304
IDSOLVER= 117
FILE ID= node17/311079-1172564439

PBS_JOBID= 3971656

Free space on /tmp= 66553 MiB

SOLVER NAME= FH 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1209647106-12-SAT.cnf
COMMAND LINE= /tmp/evaluation/311079-1172564439/FH /tmp/evaluation/311079-1172564439/instance-311079-1172564439.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node17/watcher-311079-1172564439 -o ROOT/results/node17/solver-311079-1172564439 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311079-1172564439/FH /tmp/evaluation/311079-1172564439/instance-311079-1172564439.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  5b71a13667daed42fef777f7d5fe2376

RANDOM SEED= 152110316

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node17.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		: 3000.229
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		: 3000.229
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:       1463176 kB
Buffers:         64028 kB
Cached:         408164 kB
SwapCached:          0 kB
Active:         308508 kB
Inactive:       208256 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1463176 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            6324 kB
Writeback:           0 kB
Mapped:          63472 kB
Slab:            61464 kB
Committed_AS:   917864 kB
PageTables:       1748 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 node17 on Tue Feb 27 08:20:41 UTC 2007