Trace number 298232

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
saps 2007-02-08SAT 2.44563 2.44654

General information on the benchmark

Namerandom/OnTreshold/3SAT/v500/
unif-k3-r4.26-v500-c2130-S44928635-12.SAT.shuffled.cnf
MD5SUMdf00c18c996450679ab1afda9ed45a72
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.150976
Satisfiable
(Un)Satisfiability was proved
Number of variables500
Number of clauses2130
Sum of the clauses size6390
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32130
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

2.35/2.44	c 
2.35/2.44	c UBCSAT version 1.1.0rr
2.35/2.44	c 
2.35/2.44	c http://www.satlib.org/ubcsat
2.35/2.44	c 
2.35/2.44	c ubcsat -h for help
2.35/2.44	c 
2.35/2.44	c  -runs 1 
2.35/2.44	c  -cutoff 4294967295 
2.35/2.44	c  -timeout 0.000000 
2.35/2.44	c  -gtimeout 0.000000 
2.35/2.44	c  -noimprove 0 
2.35/2.44	c  -target 0 
2.35/2.44	c  -wtarget 0.000000 
2.35/2.44	c  -seed 930663216 
2.35/2.44	c  -solve 0 
2.35/2.44	c  -find,-numsol 0 
2.35/2.44	c  -findunique 0 
2.35/2.44	c  -srestart 0 
2.35/2.44	c  -prestart 0.000000 
2.35/2.44	c  -drestart 0 
2.35/2.44	c 
2.35/2.44	c  -alpha 1.300000 
2.35/2.44	c  -rho 0.800000 
2.35/2.44	c  -ps 0.050000 
2.35/2.44	c  -wp 0.010000 
2.35/2.44	c  -sapsthresh -0.100000 
2.35/2.44	c 
2.35/2.44	s SATISFIABLE
2.35/2.44	v  -1 -2 -3 4 -5 6 7 -8 -9 -10
2.35/2.44	v  11 12 -13 -14 15 16 -17 -18 -19 -20
2.35/2.44	v  -21 22 23 24 -25 26 -27 -28 29 -30
2.35/2.44	v  31 -32 -33 34 35 36 37 38 -39 -40
2.35/2.44	v  -41 -42 -43 44 -45 -46 -47 48 49 50
2.35/2.44	v  -51 -52 -53 -54 -55 -56 57 -58 59 60
2.35/2.44	v  61 -62 63 -64 65 -66 67 68 -69 70
2.35/2.44	v  71 72 73 74 -75 -76 -77 -78 79 -80
2.35/2.44	v  -81 -82 83 -84 -85 86 87 88 89 90
2.35/2.44	v  91 -92 93 -94 -95 96 97 -98 99 -100
2.35/2.44	v  101 -102 103 -104 -105 -106 -107 -108 -109 110
2.35/2.44	v  111 112 113 -114 -115 116 117 -118 119 -120
2.35/2.44	v  121 -122 -123 -124 -125 126 -127 -128 -129 -130
2.35/2.44	v  131 132 133 134 135 136 137 -138 139 140
2.35/2.44	v  -141 142 143 144 145 146 -147 -148 -149 150
2.35/2.44	v  -151 -152 153 154 155 156 157 158 159 160
2.35/2.44	v  161 -162 163 -164 165 -166 167 168 169 -170
2.35/2.44	v  171 -172 173 174 175 176 177 -178 179 -180
2.35/2.44	v  181 182 183 -184 -185 -186 -187 -188 -189 190
2.35/2.44	v  191 -192 193 -194 -195 196 -197 -198 199 -200
2.35/2.44	v  -201 -202 -203 204 205 -206 207 208 -209 -210
2.35/2.44	v  211 -212 -213 -214 -215 216 217 -218 -219 -220
2.35/2.44	v  -221 222 -223 -224 225 -226 227 228 229 230
2.35/2.44	v  -231 232 -233 -234 235 236 -237 -238 -239 -240
2.35/2.44	v  241 242 -243 244 -245 -246 -247 -248 249 -250
2.35/2.44	v  251 252 -253 -254 -255 -256 -257 258 -259 260
2.35/2.44	v  -261 -262 -263 -264 -265 -266 267 268 -269 270
2.35/2.44	v  -271 272 -273 274 -275 -276 -277 -278 -279 280
2.35/2.44	v  -281 -282 283 -284 -285 -286 -287 -288 289 290
2.35/2.44	v  291 -292 -293 294 -295 -296 297 298 299 300
2.35/2.44	v  -301 302 303 -304 -305 306 307 308 -309 -310
2.35/2.44	v  311 312 313 314 315 316 -317 318 319 -320
2.35/2.44	v  321 322 323 324 325 -326 327 -328 329 -330
2.35/2.44	v  -331 332 -333 334 335 336 -337 338 -339 340
2.35/2.44	v  341 342 343 -344 345 346 -347 348 349 350
2.35/2.44	v  351 352 -353 354 355 356 357 -358 -359 360
2.35/2.44	v  361 -362 -363 -364 365 -366 367 -368 369 -370
2.35/2.44	v  -371 372 373 374 375 376 -377 378 379 -380
2.35/2.44	v  -381 -382 383 384 385 -386 -387 388 389 -390
2.35/2.44	v  -391 -392 393 -394 -395 -396 -397 398 -399 -400
2.35/2.44	v  -401 -402 -403 404 405 406 -407 -408 -409 410
2.35/2.44	v  -411 412 -413 414 -415 -416 -417 418 -419 420
2.35/2.44	v  421 -422 -423 424 425 -426 -427 -428 429 430
2.35/2.44	v  431 -432 433 -434 -435 436 437 -438 -439 -440
2.35/2.44	v  -441 442 -443 -444 445 -446 447 448 449 450
2.35/2.44	v  451 452 453 -454 -455 -456 -457 -458 -459 -460
2.35/2.44	v  461 -462 -463 -464 465 466 467 468 469 -470
2.35/2.44	v  471 472 -473 -474 -475 -476 477 -478 479 480
2.35/2.44	v  481 -482 483 -484 485 486 -487 488 -489 -490
2.35/2.44	v  491 -492 493 494 495 496 497 498 499 -500
2.35/2.44	v  0

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/node22/watcher-298232-1171852505 -o ROOT/results/node22/solver-298232-1171852505 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/298232-1171852505/saps /tmp/evaluation/298232-1171852505/instance-298232-1171852505.cnf 930663216 

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: 0.92 0.98 0.99 2/77 25920
/proc/meminfo: memFree=775864/2055920 swapFree=4121028/4192956
[pid=25920] ppid=25918 vsize=5156 CPUtime=0
/proc/25920/stat : 25920 (saps) R 25918 25920 21342 0 -1 4194304 182 0 0 0 0 0 0 0 18 0 1 0 205204458 5279744 166 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134705725 0 0 4096 0 0 0 0 17 1 0 0
/proc/25920/statm: 1289 166 78 159 0 1128 0

[startup+0.106719 s]
/proc/loadavg: 0.92 0.98 0.99 2/77 25920
/proc/meminfo: memFree=775864/2055920 swapFree=4121028/4192956
[pid=25920] ppid=25918 vsize=5156 CPUtime=0.1
/proc/25920/stat : 25920 (saps) R 25918 25920 21342 0 -1 4194304 182 0 0 0 10 0 0 0 18 0 1 0 205204458 5279744 166 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134715135 0 0 4096 0 0 0 0 17 1 0 0
/proc/25920/statm: 1289 166 78 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

[startup+0.514749 s]
/proc/loadavg: 0.92 0.98 0.99 2/77 25920
/proc/meminfo: memFree=775864/2055920 swapFree=4121028/4192956
[pid=25920] ppid=25918 vsize=5156 CPUtime=0.51
/proc/25920/stat : 25920 (saps) R 25918 25920 21342 0 -1 4194304 182 0 0 0 51 0 0 0 22 0 1 0 205204458 5279744 166 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134549531 0 0 4096 0 0 0 0 17 1 0 0
/proc/25920/statm: 1289 166 78 159 0 1128 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 5156

[startup+1.33481 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 25921
/proc/meminfo: memFree=775472/2055920 swapFree=4121028/4192956
[pid=25920] ppid=25918 vsize=5156 CPUtime=1.33
/proc/25920/stat : 25920 (saps) R 25918 25920 21342 0 -1 4194304 182 0 0 0 133 0 0 0 25 0 1 0 205204458 5279744 166 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134714700 0 0 4096 0 0 0 0 17 1 0 0
/proc/25920/statm: 1289 166 78 159 0 1128 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 5156

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

[startup+1.64083 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 25921
/proc/meminfo: memFree=775472/2055920 swapFree=4121028/4192956
[pid=25920] ppid=25918 vsize=5156 CPUtime=1.63
/proc/25920/stat : 25920 (saps) R 25918 25920 21342 0 -1 4194304 182 0 0 0 163 0 0 0 25 0 1 0 205204458 5279744 166 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134714316 0 0 4096 0 0 0 0 17 1 0 0
/proc/25920/statm: 1289 166 78 159 0 1128 0
Current children cumulated CPU time (s) 1.63
Current children cumulated vsize (KiB) 5156

[startup+2.04886 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 25921
/proc/meminfo: memFree=775472/2055920 swapFree=4121028/4192956
[pid=25920] ppid=25918 vsize=5156 CPUtime=2.04
/proc/25920/stat : 25920 (saps) R 25918 25920 21342 0 -1 4194304 182 0 0 0 204 0 0 0 25 0 1 0 205204458 5279744 166 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134550384 0 0 4096 0 0 0 0 17 1 0 0
/proc/25920/statm: 1289 166 78 159 0 1128 0
Current children cumulated CPU time (s) 2.04
Current children cumulated vsize (KiB) 5156

[startup+2.25388 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 25921
/proc/meminfo: memFree=775216/2055920 swapFree=4121028/4192956
[pid=25920] ppid=25918 vsize=5156 CPUtime=2.25
/proc/25920/stat : 25920 (saps) R 25918 25920 21342 0 -1 4194304 182 0 0 0 225 0 0 0 25 0 1 0 205204458 5279744 166 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134549537 0 0 4096 0 0 0 0 17 1 0 0
/proc/25920/statm: 1289 166 78 159 0 1128 0
Current children cumulated CPU time (s) 2.25
Current children cumulated vsize (KiB) 5156

[startup+2.35988 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 25921
/proc/meminfo: memFree=775216/2055920 swapFree=4121028/4192956
[pid=25920] ppid=25918 vsize=5156 CPUtime=2.35
/proc/25920/stat : 25920 (saps) R 25918 25920 21342 0 -1 4194304 182 0 0 0 235 0 0 0 25 0 1 0 205204458 5279744 166 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134549537 0 0 4096 0 0 0 0 17 1 0 0
/proc/25920/statm: 1289 166 78 159 0 1128 0
Current children cumulated CPU time (s) 2.35
Current children cumulated vsize (KiB) 5156

Child status: 10
Real time (s): 2.44654
CPU time (s): 2.44563
CPU user time (s): 2.44363
CPU system time (s): 0.001999
CPU usage (%): 99.9628
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.44363
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= 200
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= 49

runsolver used 0.003999 second user time and 0.011998 second system time

The end

Launcher Data (download as text)

Begin job on node22 on Mon Feb 19 02:35:05 UTC 2007

IDJOB= 298232
IDBENCH= 19981
IDSOLVER= 103
FILE ID= node22/298232-1171852505

PBS_JOBID= 3839650

Free space on /tmp= 66562 MiB

SOLVER NAME= saps 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v500/unif-k3-r4.26-v500-c2130-S44928635-12.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/298232-1171852505/saps /tmp/evaluation/298232-1171852505/instance-298232-1171852505.cnf  930663216   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node22/watcher-298232-1171852505 -o ROOT/results/node22/solver-298232-1171852505 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/298232-1171852505/saps /tmp/evaluation/298232-1171852505/instance-298232-1171852505.cnf  930663216   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  df00c18c996450679ab1afda9ed45a72

RANDOM SEED= 930663216

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node22.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		: 3000.235
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		: 3000.235
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:        776272 kB
Buffers:         43888 kB
Cached:        1094844 kB
SwapCached:      39232 kB
Active:         813944 kB
Inactive:       375508 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        776272 kB
SwapTotal:     4192956 kB
SwapFree:      4121028 kB
Dirty:            2208 kB
Writeback:           0 kB
Mapped:          30472 kB
Slab:            75860 kB
Committed_AS:   639760 kB
PageTables:       1672 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= 66562 MiB

End job on node22 on Mon Feb 19 02:35:08 UTC 2007