Trace number 371794

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
sapsrt 2007-02-08SAT 0.082986 0.092112

General information on the benchmark

Namerandom/OnTreshold/3SAT/v650/
unif-k3-r4.261-v650-c2769-S1481730841-18.SAT.shuffled.cnf
MD5SUMca23c03e62584abdedb2b20d52898b44
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 variables650
Number of clauses2769
Sum of the clauses size8307
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32769
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.08	c 
0.00/0.08	c UBCSAT version 1.1.0rr
0.00/0.08	c 
0.00/0.08	c http://www.satlib.org/ubcsat
0.00/0.08	c 
0.00/0.08	c ubcsat -h for help
0.00/0.08	c 
0.00/0.08	c  -runs 1 
0.00/0.08	c  -cutoff 4294967295 
0.00/0.08	c  -timeout 0.000000 
0.00/0.08	c  -gtimeout 0.000000 
0.00/0.08	c  -noimprove 0 
0.00/0.08	c  -target 0 
0.00/0.08	c  -wtarget 0.000000 
0.00/0.08	c  -seed 356366286 
0.00/0.08	c  -solve 0 
0.00/0.08	c  -find,-numsol 0 
0.00/0.08	c  -findunique 0 
0.00/0.08	c  -srestart 0 
0.00/0.08	c  -prestart 0.000000 
0.00/0.08	c  -drestart 0 
0.00/0.08	c 
0.00/0.08	c  -alpha 1.126000 
0.00/0.08	c  -rho 0.666000 
0.00/0.08	c  -ps 0.033000 
0.00/0.08	c  -wp 0.060000 
0.00/0.08	c  -sapsthresh -0.100000 
0.00/0.08	c 
0.00/0.08	s SATISFIABLE
0.00/0.08	v  1 -2 -3 -4 5 -6 -7 8 9 -10
0.00/0.08	v  11 12 -13 14 -15 16 17 18 -19 20
0.00/0.08	v  -21 -22 23 -24 25 -26 -27 28 -29 -30
0.00/0.08	v  31 32 33 34 35 -36 37 38 -39 40
0.00/0.08	v  -41 42 43 -44 45 46 47 -48 -49 50
0.00/0.08	v  -51 52 53 -54 -55 -56 -57 58 59 60
0.00/0.08	v  61 62 -63 -64 -65 -66 -67 -68 69 70
0.00/0.08	v  -71 72 73 74 -75 76 77 -78 79 80
0.00/0.08	v  81 82 -83 84 -85 -86 -87 -88 -89 -90
0.00/0.08	v  91 -92 93 -94 -95 96 97 -98 99 -100
0.00/0.08	v  101 102 -103 104 -105 -106 -107 -108 -109 -110
0.00/0.08	v  111 -112 113 114 -115 -116 117 118 119 120
0.00/0.08	v  -121 -122 -123 -124 -125 -126 -127 128 -129 130
0.00/0.08	v  -131 -132 133 -134 135 136 137 -138 139 140
0.00/0.08	v  141 -142 143 -144 145 -146 -147 148 -149 -150
0.00/0.08	v  151 -152 153 -154 155 -156 157 158 159 160
0.00/0.08	v  -161 -162 -163 -164 165 166 167 -168 -169 -170
0.00/0.08	v  171 172 173 174 -175 176 177 -178 -179 180
0.00/0.08	v  181 182 -183 -184 185 186 -187 -188 189 190
0.00/0.08	v  191 -192 193 194 195 -196 -197 198 -199 -200
0.00/0.08	v  -201 202 -203 204 -205 -206 -207 208 209 210
0.00/0.08	v  -211 -212 213 214 -215 216 217 -218 -219 -220
0.00/0.08	v  -221 -222 -223 224 -225 226 -227 228 229 -230
0.00/0.08	v  -231 232 -233 -234 -235 -236 -237 238 239 240
0.00/0.08	v  241 -242 -243 244 245 -246 -247 248 249 -250
0.00/0.08	v  -251 252 253 -254 -255 256 -257 -258 259 260
0.00/0.08	v  -261 -262 -263 -264 -265 -266 267 -268 269 -270
0.00/0.08	v  271 272 273 -274 -275 276 -277 278 -279 280
0.00/0.08	v  -281 -282 283 284 285 -286 -287 288 289 -290
0.00/0.08	v  -291 -292 -293 294 295 -296 297 -298 -299 300
0.00/0.08	v  -301 -302 -303 -304 -305 306 -307 -308 309 -310
0.00/0.08	v  311 -312 -313 -314 315 -316 -317 -318 319 -320
0.00/0.08	v  321 322 -323 324 325 -326 327 -328 -329 -330
0.00/0.08	v  331 -332 -333 334 335 -336 337 -338 -339 340
0.00/0.08	v  -341 -342 343 344 -345 -346 -347 -348 -349 -350
0.00/0.08	v  351 352 -353 -354 -355 356 -357 -358 -359 -360
0.00/0.08	v  361 -362 363 -364 365 -366 367 368 -369 370
0.00/0.08	v  -371 -372 -373 374 -375 -376 377 378 379 -380
0.00/0.08	v  -381 -382 383 -384 385 -386 387 388 -389 390
0.00/0.08	v  391 392 393 394 395 396 397 398 399 -400
0.00/0.08	v  -401 -402 403 404 -405 -406 407 408 409 410
0.00/0.08	v  411 -412 413 -414 415 416 417 -418 419 420
0.00/0.08	v  -421 -422 423 424 -425 426 427 428 429 430
0.00/0.08	v  -431 -432 433 -434 435 -436 -437 438 -439 440
0.00/0.08	v  -441 -442 443 -444 445 446 -447 -448 -449 -450
0.00/0.08	v  -451 452 453 454 -455 456 457 -458 -459 -460
0.00/0.08	v  461 -462 463 -464 465 466 467 -468 -469 470
0.00/0.08	v  471 472 -473 474 475 -476 477 -478 -479 480
0.00/0.08	v  -481 -482 483 484 485 -486 -487 488 -489 -490
0.00/0.08	v  -491 492 493 494 -495 496 -497 -498 -499 -500
0.00/0.08	v  501 502 -503 -504 505 -506 507 508 509 510
0.00/0.08	v  -511 512 -513 -514 -515 516 -517 518 519 -520
0.00/0.08	v  521 522 523 -524 -525 -526 -527 -528 -529 -530
0.00/0.08	v  -531 -532 533 -534 -535 536 -537 -538 539 540
0.00/0.08	v  -541 -542 -543 -544 545 -546 547 548 549 -550
0.00/0.08	v  -551 552 553 -554 555 556 557 -558 -559 560
0.00/0.08	v  561 -562 -563 564 565 -566 -567 568 569 570
0.00/0.08	v  571 572 -573 -574 575 -576 -577 -578 -579 580
0.00/0.08	v  581 582 -583 584 585 586 -587 -588 -589 -590
0.00/0.08	v  591 -592 593 594 -595 596 597 598 -599 -600
0.00/0.08	v  -601 -602 603 -604 -605 606 -607 608 -609 -610
0.00/0.08	v  611 612 -613 -614 -615 -616 -617 -618 619 -620
0.00/0.08	v  -621 622 623 624 625 626 627 628 629 -630
0.00/0.08	v  -631 632 633 634 -635 -636 637 638 639 -640
0.00/0.08	v  641 -642 643 -644 -645 646 647 -648 -649 -650
0.00/0.08	v  0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node52/watcher-371794-1177545696 -o ROOT/results/node52/solver-371794-1177545696 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371794-1177545696/sapsrt /tmp/evaluation/371794-1177545696/instance-371794-1177545696.cnf 356366286 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.00 0.05 0.33 3/70 18587
/proc/meminfo: memFree=1699920/2055920 swapFree=4182996/4192956
[pid=18587] ppid=18585 vsize=5156 CPUtime=0
/proc/18587/stat : 18587 (sapsrt) R 18585 18587 18367 0 -1 4194304 166 0 0 0 0 0 0 0 18 0 1 0 109414739 5279744 151 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134694565 0 0 4096 0 0 0 0 17 1 0 0
/proc/18587/statm: 1289 158 82 159 0 1128 0

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

Child status: 10
Real time (s): 0.092112
CPU time (s): 0.082986
CPU user time (s): 0.079987
CPU system time (s): 0.002999
CPU usage (%): 90.0925
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.079987
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= 210
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= 1

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node52 on Thu Apr 26 00:01:37 UTC 2007

IDJOB= 371794
IDBENCH= 20009
IDSOLVER= 187
FILE ID= node52/371794-1177545696

PBS_JOBID= 4696516

Free space on /tmp= 66326 MiB

SOLVER NAME= sapsrt 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v650/unif-k3-r4.261-v650-c2769-S1481730841-18.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/371794-1177545696/sapsrt /tmp/evaluation/371794-1177545696/instance-371794-1177545696.cnf  356366286       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node52/watcher-371794-1177545696 -o ROOT/results/node52/solver-371794-1177545696 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371794-1177545696/sapsrt /tmp/evaluation/371794-1177545696/instance-371794-1177545696.cnf  356366286       

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  ca23c03e62584abdedb2b20d52898b44

RANDOM SEED= 356366286

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node52.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		: 3000.236
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		: 3000.236
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:       1700332 kB
Buffers:         28156 kB
Cached:         250824 kB
SwapCached:       3968 kB
Active:         115072 kB
Inactive:       174136 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1700332 kB
SwapTotal:     4192956 kB
SwapFree:      4182996 kB
Dirty:            2264 kB
Writeback:           0 kB
Mapped:          16748 kB
Slab:            51884 kB
Committed_AS:  1832188 kB
PageTables:       1732 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= 66326 MiB

End job on node52 on Thu Apr 26 00:01:37 UTC 2007