Trace number 297289

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 2.89056 2.89325

General information on the benchmark

Namerandom/OnTreshold/3SAT/v550/
unif-k3-r4.26-v550-c2343-S1456038697-16.SAT.shuffled.cnf
MD5SUM477dc097da7e642f48b5bde247eb1f2d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.036993
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)

2.86/2.89	c 
2.86/2.89	c UBCSAT version 1.1.0rr
2.86/2.89	c 
2.86/2.89	c http://www.satlib.org/ubcsat
2.86/2.89	c 
2.86/2.89	c ubcsat -h for help
2.86/2.89	c 
2.86/2.89	c  -runs 1 
2.86/2.89	c  -cutoff 4294967295 
2.86/2.89	c  -timeout 0.000000 
2.86/2.89	c  -gtimeout 0.000000 
2.86/2.89	c  -noimprove 0 
2.86/2.89	c  -target 0 
2.86/2.89	c  -wtarget 0.000000 
2.86/2.89	c  -seed 145007934 
2.86/2.89	c  -solve 0 
2.86/2.89	c  -find,-numsol 0 
2.86/2.89	c  -findunique 0 
2.86/2.89	c  -srestart 0 
2.86/2.89	c  -prestart 0.000000 
2.86/2.89	c  -drestart 0 
2.86/2.89	c 
2.86/2.89	c  -alpha 1.300000 
2.86/2.89	c  -rho 0.800000 
2.86/2.89	c  -ps 0.050000 
2.86/2.89	c  -wp 0.010000 
2.86/2.89	c  -sapsthresh -0.100000 
2.86/2.89	c 
2.86/2.89	s SATISFIABLE
2.86/2.89	v  1 2 -3 -4 -5 -6 7 -8 9 -10
2.86/2.89	v  11 -12 13 -14 -15 -16 -17 -18 -19 -20
2.86/2.89	v  21 -22 23 -24 25 -26 -27 28 -29 30
2.86/2.89	v  -31 32 -33 34 35 -36 37 38 39 -40
2.86/2.89	v  -41 -42 43 44 -45 46 47 48 49 50
2.86/2.89	v  51 52 -53 54 -55 56 57 58 59 -60
2.86/2.89	v  -61 -62 -63 64 -65 -66 67 68 69 70
2.86/2.89	v  -71 72 -73 -74 75 -76 77 -78 -79 80
2.86/2.89	v  -81 -82 83 -84 -85 86 87 -88 89 90
2.86/2.89	v  -91 -92 -93 -94 95 96 -97 -98 99 100
2.86/2.89	v  101 -102 -103 -104 105 106 107 108 -109 110
2.86/2.89	v  -111 -112 113 114 -115 116 117 -118 -119 120
2.86/2.89	v  121 122 123 124 125 -126 -127 128 129 130
2.86/2.89	v  -131 132 133 -134 135 136 -137 -138 -139 140
2.86/2.89	v  -141 142 143 -144 145 146 147 148 149 150
2.86/2.89	v  151 -152 -153 154 -155 156 -157 -158 -159 -160
2.86/2.89	v  -161 -162 -163 164 165 -166 167 -168 169 170
2.86/2.89	v  171 172 -173 174 175 -176 -177 178 -179 180
2.86/2.89	v  181 182 183 -184 185 186 187 188 -189 190
2.86/2.89	v  191 192 -193 -194 -195 -196 -197 -198 199 -200
2.86/2.89	v  -201 -202 -203 204 -205 206 -207 -208 -209 210
2.86/2.89	v  -211 212 213 214 -215 216 -217 -218 -219 220
2.86/2.89	v  -221 -222 -223 224 225 226 227 -228 229 230
2.86/2.89	v  -231 232 -233 -234 -235 236 237 -238 239 -240
2.86/2.89	v  -241 -242 -243 244 245 -246 247 -248 249 -250
2.86/2.89	v  251 252 -253 254 255 -256 -257 -258 -259 260
2.86/2.89	v  -261 -262 263 -264 265 -266 267 268 -269 270
2.86/2.89	v  -271 272 273 274 275 -276 277 278 279 -280
2.86/2.89	v  281 282 -283 284 285 286 -287 288 -289 -290
2.86/2.89	v  -291 292 293 -294 295 296 297 -298 299 300
2.86/2.89	v  301 302 303 -304 -305 306 -307 308 -309 -310
2.86/2.89	v  311 312 -313 314 315 -316 317 -318 319 320
2.86/2.89	v  -321 -322 323 -324 -325 326 -327 -328 -329 -330
2.86/2.89	v  331 332 333 -334 -335 -336 -337 -338 -339 -340
2.86/2.89	v  -341 -342 343 -344 345 346 -347 348 -349 -350
2.86/2.89	v  351 352 -353 354 -355 356 357 358 359 360
2.86/2.89	v  -361 362 -363 364 -365 -366 -367 -368 -369 370
2.86/2.89	v  -371 -372 373 -374 -375 -376 -377 378 379 380
2.86/2.89	v  -381 -382 383 -384 385 386 387 388 -389 -390
2.86/2.89	v  391 -392 393 -394 -395 -396 397 -398 399 400
2.86/2.89	v  -401 -402 -403 -404 -405 -406 407 408 409 -410
2.86/2.89	v  -411 412 -413 414 415 -416 417 -418 -419 420
2.86/2.89	v  -421 -422 423 424 -425 426 427 428 -429 430
2.86/2.89	v  431 432 -433 -434 435 -436 -437 -438 -439 440
2.86/2.89	v  441 442 443 -444 -445 446 -447 -448 449 450
2.86/2.89	v  451 452 -453 454 -455 -456 -457 458 -459 460
2.86/2.89	v  461 -462 -463 464 -465 -466 467 468 469 -470
2.86/2.89	v  471 -472 -473 -474 475 476 -477 -478 -479 -480
2.86/2.89	v  -481 482 483 -484 -485 -486 487 488 489 490
2.86/2.89	v  491 492 -493 494 -495 496 -497 498 -499 500
2.86/2.89	v  501 502 -503 -504 505 506 -507 -508 -509 -510
2.86/2.89	v  511 -512 513 -514 -515 -516 517 -518 -519 520
2.86/2.89	v  -521 522 523 524 525 -526 -527 -528 529 -530
2.86/2.89	v  -531 532 533 534 -535 536 -537 538 -539 540
2.86/2.89	v  -541 542 543 -544 -545 546 -547 548 -549 -550
2.86/2.89	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/node7/watcher-297289-1171836489 -o ROOT/results/node7/solver-297289-1171836489 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/297289-1171836489/saps /tmp/evaluation/297289-1171836489/instance-297289-1171836489.cnf 145007934 

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 3/77 22139
/proc/meminfo: memFree=1688912/2055920 swapFree=4142368/4192956
[pid=22139] ppid=22137 vsize=5156 CPUtime=0
/proc/22139/stat : 22139 (saps) R 22137 22139 20155 0 -1 4194304 183 0 0 0 0 0 0 0 18 0 1 0 203603664 5279744 167 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134549641 0 0 4096 0 0 0 0 17 1 0 0
/proc/22139/statm: 1289 167 77 159 0 1128 0

[startup+0.106634 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 22139
/proc/meminfo: memFree=1688912/2055920 swapFree=4142368/4192956
[pid=22139] ppid=22137 vsize=5156 CPUtime=0.1
/proc/22139/stat : 22139 (saps) R 22137 22139 20155 0 -1 4194304 183 0 0 0 10 0 0 0 18 0 1 0 203603664 5279744 167 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134550708 0 0 4096 0 0 0 0 17 1 0 0
/proc/22139/statm: 1289 167 77 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

[startup+0.514676 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 22139
/proc/meminfo: memFree=1688912/2055920 swapFree=4142368/4192956
[pid=22139] ppid=22137 vsize=5156 CPUtime=0.51
/proc/22139/stat : 22139 (saps) R 22137 22139 20155 0 -1 4194304 183 0 0 0 51 0 0 0 21 0 1 0 203603664 5279744 167 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134714577 0 0 4096 0 0 0 0 17 1 0 0
/proc/22139/statm: 1289 167 77 159 0 1128 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 5156

[startup+1.33476 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 22140
/proc/meminfo: memFree=1688520/2055920 swapFree=4142368/4192956
[pid=22139] ppid=22137 vsize=5156 CPUtime=1.33
/proc/22139/stat : 22139 (saps) R 22137 22139 20155 0 -1 4194304 183 0 0 0 133 0 0 0 25 0 1 0 203603664 5279744 167 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134549535 0 0 4096 0 0 0 0 17 1 0 0
/proc/22139/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+1.64079 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 22140
/proc/meminfo: memFree=1688520/2055920 swapFree=4142368/4192956
[pid=22139] ppid=22137 vsize=5156 CPUtime=1.63
/proc/22139/stat : 22139 (saps) R 22137 22139 20155 0 -1 4194304 183 0 0 0 163 0 0 0 25 0 1 0 203603664 5279744 167 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134549537 0 0 4096 0 0 0 0 17 1 0 0
/proc/22139/statm: 1289 167 77 159 0 1128 0
Current children cumulated CPU time (s) 1.63
Current children cumulated vsize (KiB) 5156

[startup+2.46088 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 22140
/proc/meminfo: memFree=1688392/2055920 swapFree=4142368/4192956
[pid=22139] ppid=22137 vsize=5156 CPUtime=2.45
/proc/22139/stat : 22139 (saps) R 22137 22139 20155 0 -1 4194304 183 0 0 0 245 0 0 0 25 0 1 0 203603664 5279744 167 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134550608 0 0 4096 0 0 0 0 17 1 0 0
/proc/22139/statm: 1289 167 77 159 0 1128 0
Current children cumulated CPU time (s) 2.45
Current children cumulated vsize (KiB) 5156

[startup+2.86892 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 22140
/proc/meminfo: memFree=1688392/2055920 swapFree=4142368/4192956
[pid=22139] ppid=22137 vsize=5156 CPUtime=2.86
/proc/22139/stat : 22139 (saps) R 22137 22139 20155 0 -1 4194304 183 0 0 0 286 0 0 0 25 0 1 0 203603664 5279744 167 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134550739 0 0 4096 0 0 0 0 17 1 0 0
/proc/22139/statm: 1289 167 77 159 0 1128 0
Current children cumulated CPU time (s) 2.86
Current children cumulated vsize (KiB) 5156

Child status: 10
Real time (s): 2.89325
CPU time (s): 2.89056
CPU user time (s): 2.88956
CPU system time (s): 0.000999
CPU usage (%): 99.907
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.88956
system time used= 0.000999
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= 2

runsolver used 0.004999 second user time and 0.013997 second system time

The end

Launcher Data (download as text)

Begin job on node7 on Sun Feb 18 22:08:09 UTC 2007

IDJOB= 297289
IDBENCH= 19958
IDSOLVER= 103
FILE ID= node7/297289-1171836489

PBS_JOBID= 3839362

Free space on /tmp= 66546 MiB

SOLVER NAME= saps 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v550/unif-k3-r4.26-v550-c2343-S1456038697-16.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/297289-1171836489/saps /tmp/evaluation/297289-1171836489/instance-297289-1171836489.cnf  145007934   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node7/watcher-297289-1171836489 -o ROOT/results/node7/solver-297289-1171836489 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/297289-1171836489/saps /tmp/evaluation/297289-1171836489/instance-297289-1171836489.cnf  145007934   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  477dc097da7e642f48b5bde247eb1f2d

RANDOM SEED= 145007934

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node7.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		: 3000.232
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		: 3000.232
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:       1689320 kB
Buffers:         49196 kB
Cached:         219700 kB
SwapCached:      16024 kB
Active:         211764 kB
Inactive:        87460 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1689320 kB
SwapTotal:     4192956 kB
SwapFree:      4142368 kB
Dirty:            2216 kB
Writeback:           0 kB
Mapped:          30020 kB
Slab:            52900 kB
Committed_AS:   739348 kB
PageTables:       1764 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= 66546 MiB

End job on node7 on Sun Feb 18 22:08:13 UTC 2007