Trace number 298109

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 2.72458 2.7261

General information on the benchmark

Namerandom/OnTreshold/3SAT/v500/
unif-k3-r4.26-v500-c2130-S1490740667-05.SAT.shuffled.cnf
MD5SUMf01193a3f455045d150f231e0d56c100
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012997
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)

2.66/2.72	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 700553663 
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  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/node66/watcher-298109-1171850422 -o ROOT/results/node66/solver-298109-1171850422 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/298109-1171850422/saps /tmp/evaluation/298109-1171850422/instance-298109-1171850422.cnf 700553663 

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 3/64 26818
/proc/meminfo: memFree=414544/2055920 swapFree=4183396/4192956
[pid=26818] ppid=26816 vsize=5156 CPUtime=0
/proc/26818/stat : 26818 (saps) R 26816 26818 25660 0 -1 4194304 181 0 0 0 0 0 0 0 18 0 1 0 204999709 5279744 165 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134705725 0 0 4096 0 0 0 0 17 1 0 0
/proc/26818/statm: 1289 165 77 159 0 1128 0

[startup+0.107167 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 26818
/proc/meminfo: memFree=414544/2055920 swapFree=4183396/4192956
[pid=26818] ppid=26816 vsize=5156 CPUtime=0.1
/proc/26818/stat : 26818 (saps) R 26816 26818 25660 0 -1 4194304 181 0 0 0 10 0 0 0 18 0 1 0 204999709 5279744 165 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134714782 0 0 4096 0 0 0 0 17 1 0 0
/proc/26818/statm: 1289 165 77 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

[startup+0.515248 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 26818
/proc/meminfo: memFree=414544/2055920 swapFree=4183396/4192956
[pid=26818] ppid=26816 vsize=5156 CPUtime=0.51
/proc/26818/stat : 26818 (saps) R 26816 26818 25660 0 -1 4194304 181 0 0 0 51 0 0 0 21 0 1 0 204999709 5279744 165 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134714292 0 0 4096 0 0 0 0 17 1 0 0
/proc/26818/statm: 1289 165 77 159 0 1128 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 5156

[startup+1.33842 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 26819
/proc/meminfo: memFree=414152/2055920 swapFree=4183396/4192956
[pid=26818] ppid=26816 vsize=5156 CPUtime=1.33
/proc/26818/stat : 26818 (saps) R 26816 26818 25660 0 -1 4194304 181 0 0 0 133 0 0 0 25 0 1 0 204999709 5279744 165 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134715094 0 0 4096 0 0 0 0 17 1 0 0
/proc/26818/statm: 1289 165 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+1.64448 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 26819
/proc/meminfo: memFree=414152/2055920 swapFree=4183396/4192956
[pid=26818] ppid=26816 vsize=5156 CPUtime=1.64
/proc/26818/stat : 26818 (saps) R 26816 26818 25660 0 -1 4194304 181 0 0 0 164 0 0 0 25 0 1 0 204999709 5279744 165 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134550734 0 0 4096 0 0 0 0 17 1 0 0
/proc/26818/statm: 1289 165 77 159 0 1128 0
Current children cumulated CPU time (s) 1.64
Current children cumulated vsize (KiB) 5156

[startup+2.46464 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 26819
/proc/meminfo: memFree=414024/2055920 swapFree=4183396/4192956
[pid=26818] ppid=26816 vsize=5156 CPUtime=2.46
/proc/26818/stat : 26818 (saps) R 26816 26818 25660 0 -1 4194304 181 0 0 0 246 0 0 0 25 0 1 0 204999709 5279744 165 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134714996 0 0 4096 0 0 0 0 17 1 0 0
/proc/26818/statm: 1289 165 77 159 0 1128 0
Current children cumulated CPU time (s) 2.46
Current children cumulated vsize (KiB) 5156

[startup+2.66868 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 26819
/proc/meminfo: memFree=414024/2055920 swapFree=4183396/4192956
[pid=26818] ppid=26816 vsize=5156 CPUtime=2.66
/proc/26818/stat : 26818 (saps) R 26816 26818 25660 0 -1 4194304 181 0 0 0 266 0 0 0 25 0 1 0 204999709 5279744 165 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134714545 0 0 4096 0 0 0 0 17 1 0 0
/proc/26818/statm: 1289 165 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): 2.7261
CPU time (s): 2.72458
CPU user time (s): 2.72159
CPU system time (s): 0.002999
CPU usage (%): 99.9444
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.72159
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= 199
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 0.005999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node66 on Mon Feb 19 02:00:22 UTC 2007

IDJOB= 298109
IDBENCH= 19978
IDSOLVER= 103
FILE ID= node66/298109-1171850422

PBS_JOBID= 3839717

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-S1490740667-05.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/298109-1171850422/saps /tmp/evaluation/298109-1171850422/instance-298109-1171850422.cnf  700553663   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node66/watcher-298109-1171850422 -o ROOT/results/node66/solver-298109-1171850422 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/298109-1171850422/saps /tmp/evaluation/298109-1171850422/instance-298109-1171850422.cnf  700553663   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  f01193a3f455045d150f231e0d56c100

RANDOM SEED= 700553663

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node66.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	: 5931.00
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:        414952 kB
Buffers:         51220 kB
Cached:        1435180 kB
SwapCached:       3616 kB
Active:         840004 kB
Inactive:       656116 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        414952 kB
SwapTotal:     4192956 kB
SwapFree:      4183396 kB
Dirty:            2188 kB
Writeback:           0 kB
Mapped:          15636 kB
Slab:           130892 kB
Committed_AS:   568548 kB
PageTables:       1376 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 node66 on Mon Feb 19 02:00:25 UTC 2007