Trace number 297330

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 2.72558 2.72861

General information on the benchmark

Namerandom/OnTreshold/3SAT/v550/
unif-k3-r4.26-v550-c2343-S1699479488-11.SAT.shuffled.cnf
MD5SUM9278c1d1a76bef19bacee2a78120fe47
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.020996
Satisfiable
(Un)Satisfiability was proved
Number of variables550
Number of clauses2343
Sum of the clauses size7029
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32343
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

2.66/2.72	c 
2.66/2.72	c UBCSAT version 1.1.0rr
2.66/2.72	c 
2.66/2.72	c http://www.satlib.org/ubcsat
2.66/2.72	c 
2.66/2.72	c ubcsat -h for help
2.66/2.72	c 
2.66/2.72	c  -runs 1 
2.66/2.72	c  -cutoff 4294967295 
2.66/2.72	c  -timeout 0.000000 
2.66/2.72	c  -gtimeout 0.000000 
2.66/2.72	c  -noimprove 0 
2.66/2.72	c  -target 0 
2.66/2.72	c  -wtarget 0.000000 
2.66/2.72	c  -seed 6417580 
2.66/2.72	c  -solve 0 
2.66/2.72	c  -find,-numsol 0 
2.66/2.72	c  -findunique 0 
2.66/2.72	c  -srestart 0 
2.66/2.72	c  -prestart 0.000000 
2.66/2.72	c  -drestart 0 
2.66/2.72	c 
2.66/2.72	c  -alpha 1.300000 
2.66/2.72	c  -rho 0.800000 
2.66/2.72	c  -ps 0.050000 
2.66/2.72	c  -wp 0.010000 
2.66/2.72	c  -sapsthresh -0.100000 
2.66/2.72	c 
2.66/2.72	s SATISFIABLE
2.66/2.72	v  1 -2 3 -4 5 6 -7 -8 -9 10
2.66/2.72	v  11 12 13 14 -15 -16 17 18 19 -20
2.66/2.72	v  21 22 23 24 -25 26 27 -28 29 30
2.66/2.72	v  31 32 33 -34 -35 -36 37 -38 39 -40
2.66/2.72	v  -41 42 -43 -44 -45 46 -47 48 -49 50
2.66/2.72	v  51 -52 53 -54 -55 56 -57 58 59 -60
2.66/2.72	v  -61 62 -63 64 65 66 -67 -68 69 -70
2.66/2.72	v  71 72 73 74 75 -76 -77 -78 79 80
2.66/2.72	v  -81 82 -83 84 85 86 -87 88 -89 90
2.66/2.72	v  91 92 93 94 95 96 -97 -98 -99 -100
2.66/2.72	v  -101 102 103 104 -105 -106 -107 108 -109 110
2.66/2.72	v  -111 -112 -113 -114 -115 -116 -117 118 119 120
2.66/2.72	v  -121 -122 -123 124 -125 -126 -127 -128 129 130
2.66/2.72	v  -131 -132 133 134 135 -136 -137 138 -139 -140
2.66/2.72	v  -141 142 143 144 145 -146 147 -148 149 150
2.66/2.72	v  -151 152 -153 -154 155 156 157 -158 159 160
2.66/2.72	v  161 -162 163 -164 165 -166 -167 -168 -169 -170
2.66/2.72	v  -171 172 -173 174 -175 -176 -177 178 179 -180
2.66/2.72	v  -181 182 -183 184 185 -186 187 -188 189 190
2.66/2.72	v  -191 -192 -193 -194 -195 196 197 198 199 -200
2.66/2.72	v  -201 202 -203 204 -205 -206 207 -208 -209 -210
2.66/2.72	v  211 212 213 214 215 -216 217 -218 219 -220
2.66/2.72	v  221 222 223 224 -225 226 -227 -228 -229 -230
2.66/2.72	v  -231 232 -233 234 235 236 -237 -238 239 240
2.66/2.72	v  241 -242 243 -244 -245 246 -247 -248 249 250
2.66/2.72	v  251 252 -253 254 -255 256 -257 258 259 -260
2.66/2.72	v  -261 262 263 264 -265 -266 267 -268 269 -270
2.66/2.72	v  -271 -272 273 -274 -275 -276 -277 278 279 280
2.66/2.72	v  -281 282 283 284 -285 -286 -287 -288 289 290
2.66/2.72	v  291 292 293 -294 295 -296 -297 -298 299 300
2.66/2.72	v  301 -302 -303 304 -305 306 307 -308 309 -310
2.66/2.72	v  311 312 313 -314 -315 -316 -317 318 319 320
2.66/2.72	v  -321 322 -323 324 -325 -326 327 328 -329 -330
2.66/2.72	v  -331 332 -333 -334 -335 -336 337 -338 -339 340
2.66/2.72	v  -341 342 343 344 345 -346 -347 348 349 -350
2.66/2.72	v  -351 -352 -353 -354 -355 356 -357 358 359 360
2.66/2.72	v  -361 362 363 -364 -365 -366 367 368 369 -370
2.66/2.72	v  371 372 373 -374 375 376 377 378 379 380
2.66/2.72	v  -381 -382 383 384 385 -386 387 -388 -389 390
2.66/2.72	v  391 -392 -393 394 -395 396 397 398 399 -400
2.66/2.72	v  -401 402 -403 404 405 406 407 408 409 410
2.66/2.72	v  411 412 -413 414 415 -416 -417 -418 419 -420
2.66/2.72	v  421 422 -423 -424 425 -426 -427 428 -429 430
2.66/2.72	v  431 -432 433 434 -435 -436 -437 438 -439 440
2.66/2.72	v  -441 442 -443 444 445 446 -447 -448 449 -450
2.66/2.72	v  451 452 -453 -454 455 456 -457 -458 -459 -460
2.66/2.72	v  -461 462 463 464 465 -466 -467 -468 469 470
2.66/2.72	v  471 -472 473 -474 475 -476 477 478 -479 -480
2.66/2.72	v  481 482 483 484 -485 -486 -487 -488 489 -490
2.66/2.72	v  491 -492 493 494 495 496 -497 -498 -499 500
2.66/2.72	v  -501 -502 503 504 -505 -506 507 -508 -509 510
2.66/2.72	v  -511 512 -513 514 515 -516 517 518 -519 -520
2.66/2.72	v  521 522 -523 524 525 -526 527 528 529 530
2.66/2.72	v  531 532 533 -534 -535 -536 537 538 539 -540
2.66/2.72	v  541 542 543 -544 -545 -546 547 -548 -549 550
2.66/2.72	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/node33/watcher-297330-1171837059 -o ROOT/results/node33/solver-297330-1171837059 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/297330-1171837059/saps /tmp/evaluation/297330-1171837059/instance-297330-1171837059.cnf 6417580 

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: 1.00 1.00 0.94 3/64 16988
/proc/meminfo: memFree=902056/2055920 swapFree=4183908/4192956
[pid=16988] ppid=16986 vsize=5156 CPUtime=0
/proc/16988/stat : 16988 (saps) R 16986 16988 15880 0 -1 4194304 183 0 0 0 0 0 0 0 18 0 1 0 108741221 5279744 167 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134549537 0 0 4096 0 0 0 0 17 0 0 0
/proc/16988/statm: 1289 167 77 159 0 1128 0

[startup+0.107144 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 16988
/proc/meminfo: memFree=902056/2055920 swapFree=4183908/4192956
[pid=16988] ppid=16986 vsize=5156 CPUtime=0.1
/proc/16988/stat : 16988 (saps) R 16986 16988 15880 0 -1 4194304 183 0 0 0 10 0 0 0 18 0 1 0 108741221 5279744 167 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134549540 0 0 4096 0 0 0 0 17 0 0 0
/proc/16988/statm: 1289 167 77 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

[startup+0.515227 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 16988
/proc/meminfo: memFree=902056/2055920 swapFree=4183908/4192956
[pid=16988] ppid=16986 vsize=5156 CPUtime=0.51
/proc/16988/stat : 16988 (saps) R 16986 16988 15880 0 -1 4194304 183 0 0 0 51 0 0 0 22 0 1 0 108741221 5279744 167 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134714971 0 0 4096 0 0 0 0 17 0 0 0
/proc/16988/statm: 1289 167 77 159 0 1128 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 5156

[startup+1.33543 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 16989
/proc/meminfo: memFree=901600/2055920 swapFree=4183908/4192956
[pid=16988] ppid=16986 vsize=5156 CPUtime=1.33
/proc/16988/stat : 16988 (saps) R 16986 16988 15880 0 -1 4194304 183 0 0 0 133 0 0 0 25 0 1 0 108741221 5279744 167 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134714974 0 0 4096 0 0 0 0 17 0 0 0
/proc/16988/statm: 1289 167 77 159 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+1.64146 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 16989
/proc/meminfo: memFree=901600/2055920 swapFree=4183908/4192956
[pid=16988] ppid=16986 vsize=5156 CPUtime=1.64
/proc/16988/stat : 16988 (saps) R 16986 16988 15880 0 -1 4194304 183 0 0 0 164 0 0 0 25 0 1 0 108741221 5279744 167 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134714453 0 0 4096 0 0 0 0 17 0 0 0
/proc/16988/statm: 1289 167 77 159 0 1128 0
Current children cumulated CPU time (s) 1.64
Current children cumulated vsize (KiB) 5156

[startup+2.46163 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 16989
/proc/meminfo: memFree=901472/2055920 swapFree=4183908/4192956
[pid=16988] ppid=16986 vsize=5156 CPUtime=2.46
/proc/16988/stat : 16988 (saps) R 16986 16988 15880 0 -1 4194304 183 0 0 0 246 0 0 0 25 0 1 0 108741221 5279744 167 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134715078 0 0 4096 0 0 0 0 17 0 0 0
/proc/16988/statm: 1289 167 77 159 0 1128 0
Current children cumulated CPU time (s) 2.46
Current children cumulated vsize (KiB) 5156

[startup+2.66567 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 16989
/proc/meminfo: memFree=901472/2055920 swapFree=4183908/4192956
[pid=16988] ppid=16986 vsize=5156 CPUtime=2.66
/proc/16988/stat : 16988 (saps) R 16986 16988 15880 0 -1 4194304 183 0 0 0 266 0 0 0 25 0 1 0 108741221 5279744 167 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134714475 0 0 4096 0 0 0 0 17 0 0 0
/proc/16988/statm: 1289 167 77 159 0 1128 0
Current children cumulated CPU time (s) 2.66
Current children cumulated vsize (KiB) 5156

Child status: 10
Real time (s): 2.72861
CPU time (s): 2.72558
CPU user time (s): 2.72558
CPU system time (s): 0
CPU usage (%): 99.889
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.72558
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 201
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= 4

runsolver used 0.007998 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node33 on Sun Feb 18 22:17:39 UTC 2007

IDJOB= 297330
IDBENCH= 19959
IDSOLVER= 103
FILE ID= node33/297330-1171837059

PBS_JOBID= 3839659

Free space on /tmp= 66562 MiB

SOLVER NAME= saps 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v550/unif-k3-r4.26-v550-c2343-S1699479488-11.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/297330-1171837059/saps /tmp/evaluation/297330-1171837059/instance-297330-1171837059.cnf  6417580   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node33/watcher-297330-1171837059 -o ROOT/results/node33/solver-297330-1171837059 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/297330-1171837059/saps /tmp/evaluation/297330-1171837059/instance-297330-1171837059.cnf  6417580   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  9278c1d1a76bef19bacee2a78120fe47

RANDOM SEED= 6417580

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node33.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		: 3000.259
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		: 3000.259
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:        902464 kB
Buffers:         42412 kB
Cached:         990220 kB
SwapCached:       4164 kB
Active:         775136 kB
Inactive:       268244 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        902464 kB
SwapTotal:     4192956 kB
SwapFree:      4183908 kB
Dirty:            2192 kB
Writeback:           0 kB
Mapped:          15464 kB
Slab:            96152 kB
Committed_AS:   175748 kB
PageTables:       1408 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 node33 on Sun Feb 18 22:17:42 UTC 2007