Trace number 372007

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 0.016996 0.0181119

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1788789488-19-SAT.cnf
MD5SUM8dd20c2b2815f1615e92da9f7d25dd5d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007998
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.01	c 
0.00/0.01	c UBCSAT version 1.1.0rr
0.00/0.01	c 
0.00/0.01	c http://www.satlib.org/ubcsat
0.00/0.01	c 
0.00/0.01	c ubcsat -h for help
0.00/0.01	c 
0.00/0.01	c  -runs 1 
0.00/0.01	c  -cutoff 4294967295 
0.00/0.01	c  -timeout 0.000000 
0.00/0.01	c  -gtimeout 0.000000 
0.00/0.01	c  -noimprove 0 
0.00/0.01	c  -target 0 
0.00/0.01	c  -wtarget 0.000000 
0.00/0.01	c  -seed 901311535 
0.00/0.01	c  -solve 0 
0.00/0.01	c  -find,-numsol 0 
0.00/0.01	c  -findunique 0 
0.00/0.01	c  -srestart 0 
0.00/0.01	c  -prestart 0.000000 
0.00/0.01	c  -drestart 0 
0.00/0.01	c 
0.00/0.01	c  -alpha 1.126000 
0.00/0.01	c  -rho 0.666000 
0.00/0.01	c  -ps 0.033000 
0.00/0.01	c  -wp 0.060000 
0.00/0.01	c  -sapsthresh -0.100000 
0.00/0.01	c 
0.00/0.01	s SATISFIABLE
0.00/0.01	v  1 -2 -3 4 5 -6 7 -8 -9 -10
0.00/0.01	v  11 12 -13 -14 -15 16 17 18 19 20
0.00/0.01	v  21 22 -23 -24 -25 26 27 -28 29 -30
0.00/0.01	v  -31 -32 -33 -34 -35 36 37 38 -39 -40
0.00/0.01	v  -41 42 -43 -44 45 -46 47 48 -49 50
0.00/0.01	v  51 52 -53 54 -55 -56 -57 -58 -59 60
0.00/0.01	v  -61 -62 63 64 65 66 -67 68 -69 70
0.00/0.01	v  -71 72 -73 74 -75 76 77 -78 79 -80
0.00/0.01	v  -81 -82 -83 84 85 86 87 88 89 -90
0.00/0.01	v  91 -92 93 -94 95 -96 -97 -98 99 100
0.00/0.01	v  -101 -102 103 104 105 106 107 108 -109 -110
0.00/0.01	v  111 -112 113 -114 -115 -116 117 118 119 -120
0.00/0.01	v  121 -122 123 124 125 -126 -127 128 129 130
0.00/0.01	v  131 132 133 -134 -135 136 -137 138 -139 140
0.00/0.01	v  141 -142 -143 144 145 -146 147 148 -149 -150
0.00/0.01	v  151 -152 153 154 155 156 -157 -158 -159 160
0.00/0.01	v  -161 162 163 164 -165 -166 167 -168 169 170
0.00/0.01	v  -171 -172 173 -174 175 -176 -177 178 -179 -180
0.00/0.01	v  -181 182 183 184 185 -186 187 188 -189 -190
0.00/0.01	v  191 192 -193 -194 195 196 197 -198 199 200
0.00/0.01	v  -201 202 -203 -204 205 -206 207 -208 -209 -210
0.00/0.01	v  211 212 213 214 -215 -216 217 -218 219 220
0.00/0.01	v  221 -222 -223 -224 -225 -226 -227 -228 229 230
0.00/0.01	v  -231 -232 -233 234 -235 236 -237 -238 -239 -240
0.00/0.01	v  241 242 243 244 245 -246 -247 248 249 250
0.00/0.01	v  251 252 253 254 255 -256 -257 -258 259 260
0.00/0.01	v  -261 -262 263 -264 265 -266 -267 -268 -269 270
0.00/0.01	v  271 272 273 274 -275 276 277 278 279 -280
0.00/0.01	v  -281 -282 -283 284 285 286 287 288 289 -290
0.00/0.01	v  291 292 293 294 295 296 -297 298 299 -300
0.00/0.01	v  301 302 303 -304 -305 306 -307 308 309 -310
0.00/0.01	v  -311 312 -313 314 315 316 -317 -318 319 320
0.00/0.01	v  -321 322 -323 324 -325 326 -327 -328 -329 330
0.00/0.01	v  -331 -332 333 334 -335 336 -337 338 -339 340
0.00/0.01	v  -341 342 -343 -344 -345 -346 347 -348 -349 350
0.00/0.01	v  -351 -352 353 -354 -355 -356 -357 358 -359 360
0.00/0.01	v  -361 362 -363 -364 -365 -366 367 -368 369 370
0.00/0.01	v  -371 372 373 374 -375 -376 -377 -378 379 -380
0.00/0.01	v  381 -382 -383 -384 -385 -386 -387 388 389 390
0.00/0.01	v  -391 392 -393 -394 -395 -396 -397 -398 -399 400
0.00/0.01	v  -401 -402 -403 404 -405 -406 407 408 -409 -410
0.00/0.01	v  411 -412 413 414 415 -416 -417 418 419 420
0.00/0.01	v  -421 -422 -423 424 425 -426 -427 428 -429 430
0.00/0.01	v  -431 432 433 -434 435 436 437 438 -439 -440
0.00/0.01	v  441 -442 443 -444 -445 -446 -447 -448 -449 -450
0.00/0.01	v  -451 452 -453 -454 455 -456 -457 458 459 460
0.00/0.01	v  -461 462 -463 -464 465 -466 -467 -468 -469 -470
0.00/0.01	v  471 472 -473 -474 -475 476 -477 -478 -479 -480
0.00/0.01	v  481 -482 -483 -484 -485 -486 487 -488 489 490
0.00/0.01	v  -491 492 -493 494 -495 496 -497 -498 499 500
0.00/0.01	v  -501 502 -503 504 -505 506 -507 -508 509 510
0.00/0.01	v  -511 512 -513 -514 515 516 517 518 -519 -520
0.00/0.01	v  -521 -522 523 524 525 -526 -527 528 529 -530
0.00/0.01	v  531 -532 -533 -534 -535 -536 -537 538 539 -540
0.00/0.01	v  541 542 543 -544 -545 546 -547 548 549 -550
0.00/0.01	v  -551 552 553 554 555 -556 557 -558 -559 560
0.00/0.01	v  -561 562 563 564 565 -566 -567 568 569 -570
0.00/0.01	v  571 572 573 -574 575 576 -577 578 -579 -580
0.00/0.01	v  -581 -582 -583 -584 585 586 -587 588 -589 -590
0.00/0.01	v  -591 -592 -593 -594 595 596 -597 598 599 -600
0.00/0.01	v  -601 602 -603 -604 -605 606 607 608 -609 610
0.00/0.01	v  -611 -612 613 614 -615 -616 617 -618 619 -620
0.00/0.01	v  621 622 -623 624 625 626 -627 -628 -629 630
0.00/0.01	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/node29/watcher-372007-1177549327 -o ROOT/results/node29/solver-372007-1177549327 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/372007-1177549327/sapsrt /tmp/evaluation/372007-1177549327/instance-372007-1177549327.cnf 901311535 

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: 0.80 0.95 0.90 3/77 2800
/proc/meminfo: memFree=1631384/2055920 swapFree=4146612/4192956
[pid=2800] ppid=2798 vsize=5156 CPUtime=0
/proc/2800/stat : 2800 (sapsrt) R 2798 2800 2245 0 -1 4194304 188 0 0 0 0 0 0 0 18 0 1 0 202848484 5279744 173 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134549639 0 0 4096 0 0 0 0 17 1 0 0
/proc/2800/statm: 1289 173 83 159 0 1128 0

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

Child status: 10
Real time (s): 0.0181119
CPU time (s): 0.016996
CPU user time (s): 0.014997
CPU system time (s): 0.001999
CPU usage (%): 93.8387
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.014997
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= 203
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 0.002999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node29 on Thu Apr 26 01:02:07 UTC 2007

IDJOB= 372007
IDBENCH= 20291
IDSOLVER= 187
FILE ID= node29/372007-1177549327

PBS_JOBID= 4696616

Free space on /tmp= 66487 MiB

SOLVER NAME= sapsrt 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1788789488-19-SAT.cnf
COMMAND LINE= /tmp/evaluation/372007-1177549327/sapsrt /tmp/evaluation/372007-1177549327/instance-372007-1177549327.cnf  901311535       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node29/watcher-372007-1177549327 -o ROOT/results/node29/solver-372007-1177549327 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/372007-1177549327/sapsrt /tmp/evaluation/372007-1177549327/instance-372007-1177549327.cnf  901311535       

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  8dd20c2b2815f1615e92da9f7d25dd5d

RANDOM SEED= 901311535

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node29.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		: 3000.224
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		: 3000.224
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:       1631856 kB
Buffers:         39444 kB
Cached:         312132 kB
SwapCached:      11748 kB
Active:         225668 kB
Inactive:       149604 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1631856 kB
SwapTotal:     4192956 kB
SwapFree:      4146612 kB
Dirty:            2332 kB
Writeback:           0 kB
Mapped:          30080 kB
Slab:            34196 kB
Committed_AS:  2711444 kB
PageTables:       1872 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= 66487 MiB

End job on node29 on Thu Apr 26 01:02:08 UTC 2007