Trace number 298273

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 0.120981 0.122858

General information on the benchmark

Namerandom/OnTreshold/3SAT/v500/
unif-k3-r4.26-v500-c2130-S1965764400-19.SAT.shuffled.cnf
MD5SUMa8fcc21a1c405b91adf9e5bdbb6b4ddd
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.021995
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)

0.10/0.12	c 
0.10/0.12	c UBCSAT version 1.1.0rr
0.10/0.12	c 
0.10/0.12	c http://www.satlib.org/ubcsat
0.10/0.12	c 
0.10/0.12	c ubcsat -h for help
0.10/0.12	c 
0.10/0.12	c  -runs 1 
0.10/0.12	c  -cutoff 4294967295 
0.10/0.12	c  -timeout 0.000000 
0.10/0.12	c  -gtimeout 0.000000 
0.10/0.12	c  -noimprove 0 
0.10/0.12	c  -target 0 
0.10/0.12	c  -wtarget 0.000000 
0.10/0.12	c  -seed 222232861 
0.10/0.12	c  -solve 0 
0.10/0.12	c  -find,-numsol 0 
0.10/0.12	c  -findunique 0 
0.10/0.12	c  -srestart 0 
0.10/0.12	c  -prestart 0.000000 
0.10/0.12	c  -drestart 0 
0.10/0.12	c 
0.10/0.12	c  -alpha 1.300000 
0.10/0.12	c  -rho 0.800000 
0.10/0.12	c  -ps 0.050000 
0.10/0.12	c  -wp 0.010000 
0.10/0.12	c  -sapsthresh -0.100000 
0.10/0.12	c 
0.10/0.12	s SATISFIABLE
0.10/0.12	v  -1 -2 -3 -4 5 -6 -7 8 9 10
0.10/0.12	v  -11 -12 13 14 -15 -16 -17 -18 19 -20
0.10/0.12	v  21 22 -23 -24 -25 -26 27 28 -29 -30
0.10/0.12	v  -31 32 33 -34 -35 36 -37 38 39 40
0.10/0.12	v  -41 42 -43 -44 45 46 47 -48 49 50
0.10/0.12	v  -51 52 53 54 55 56 57 58 59 60
0.10/0.12	v  -61 -62 -63 64 -65 66 -67 68 -69 70
0.10/0.12	v  71 -72 -73 74 -75 76 77 78 79 80
0.10/0.12	v  81 -82 83 84 -85 -86 87 88 -89 -90
0.10/0.12	v  -91 92 93 -94 -95 -96 -97 -98 -99 -100
0.10/0.12	v  101 -102 -103 104 -105 106 107 -108 -109 -110
0.10/0.12	v  111 -112 -113 114 115 -116 117 118 119 120
0.10/0.12	v  -121 -122 123 124 -125 126 127 128 -129 -130
0.10/0.12	v  131 132 133 -134 -135 136 137 138 139 -140
0.10/0.12	v  141 -142 -143 144 -145 -146 147 -148 149 -150
0.10/0.12	v  -151 -152 153 -154 -155 -156 -157 -158 -159 160
0.10/0.12	v  161 -162 -163 164 -165 166 -167 168 169 170
0.10/0.12	v  171 -172 -173 -174 -175 176 177 -178 179 -180
0.10/0.12	v  -181 182 183 184 -185 186 -187 188 -189 190
0.10/0.12	v  -191 -192 193 194 195 -196 -197 -198 -199 200
0.10/0.12	v  -201 202 203 -204 205 -206 -207 208 209 -210
0.10/0.12	v  -211 212 213 214 215 -216 -217 -218 219 220
0.10/0.12	v  221 222 223 -224 -225 -226 -227 228 229 -230
0.10/0.12	v  231 -232 -233 234 -235 -236 237 -238 239 240
0.10/0.12	v  241 -242 -243 244 -245 246 247 -248 -249 250
0.10/0.12	v  251 252 253 -254 255 256 -257 -258 259 -260
0.10/0.12	v  -261 -262 -263 264 -265 266 267 -268 269 -270
0.10/0.12	v  271 -272 -273 274 275 276 277 -278 279 -280
0.10/0.12	v  281 -282 283 -284 -285 286 -287 288 289 290
0.10/0.12	v  -291 292 293 294 295 296 -297 298 -299 300
0.10/0.12	v  301 302 -303 304 -305 -306 -307 308 309 -310
0.10/0.12	v  311 312 -313 314 -315 -316 -317 318 -319 -320
0.10/0.12	v  -321 322 -323 324 325 -326 -327 -328 -329 -330
0.10/0.12	v  331 332 333 334 335 336 -337 338 -339 340
0.10/0.12	v  -341 342 -343 -344 345 346 -347 -348 -349 -350
0.10/0.12	v  -351 352 -353 354 355 356 -357 -358 359 360
0.10/0.12	v  -361 -362 -363 -364 -365 366 367 -368 369 -370
0.10/0.12	v  371 372 373 -374 375 376 377 378 -379 380
0.10/0.12	v  381 -382 383 -384 -385 386 -387 -388 -389 -390
0.10/0.12	v  391 392 393 -394 395 -396 -397 398 -399 -400
0.10/0.12	v  401 -402 -403 404 405 406 407 -408 -409 410
0.10/0.12	v  -411 -412 -413 -414 415 -416 -417 418 419 420
0.10/0.12	v  -421 422 423 -424 -425 426 -427 -428 -429 430
0.10/0.12	v  431 -432 -433 -434 -435 436 -437 438 -439 440
0.10/0.12	v  441 442 -443 -444 445 446 447 448 -449 -450
0.10/0.12	v  -451 -452 453 454 -455 456 -457 458 459 -460
0.10/0.12	v  -461 -462 -463 464 465 -466 467 468 -469 470
0.10/0.12	v  471 -472 473 -474 -475 476 477 -478 -479 -480
0.10/0.12	v  481 -482 483 484 -485 -486 -487 488 489 -490
0.10/0.12	v  -491 492 493 -494 -495 -496 497 498 499 -500
0.10/0.12	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/node18/watcher-298273-1171853135 -o ROOT/results/node18/solver-298273-1171853135 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/298273-1171853135/saps /tmp/evaluation/298273-1171853135/instance-298273-1171853135.cnf 222232861 

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 19936
/proc/meminfo: memFree=1645464/2055920 swapFree=4192812/4192956
[pid=19936] ppid=19934 vsize=5156 CPUtime=0
/proc/19936/stat : 19936 (saps) R 19934 19936 19783 0 -1 4194304 182 0 0 0 0 0 0 0 18 0 1 0 205268014 5279744 166 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134549535 0 0 4096 0 0 0 0 17 1 0 0
/proc/19936/statm: 1289 166 78 159 0 1128 0

[startup+0.10765 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 19936
/proc/meminfo: memFree=1645464/2055920 swapFree=4192812/4192956
[pid=19936] ppid=19934 vsize=5156 CPUtime=0.1
/proc/19936/stat : 19936 (saps) R 19934 19936 19783 0 -1 4194304 182 0 0 0 10 0 0 0 18 0 1 0 205268014 5279744 166 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134715027 0 0 4096 0 0 0 0 17 1 0 0
/proc/19936/statm: 1289 166 78 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

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

[startup+0.10765 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 19936
/proc/meminfo: memFree=1645464/2055920 swapFree=4192812/4192956
[pid=19936] ppid=19934 vsize=5156 CPUtime=0.1
/proc/19936/stat : 19936 (saps) R 19934 19936 19783 0 -1 4194304 182 0 0 0 10 0 0 0 18 0 1 0 205268014 5279744 166 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134715027 0 0 4096 0 0 0 0 17 1 0 0
/proc/19936/statm: 1289 166 78 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

Child status: 10
Real time (s): 0.122858
CPU time (s): 0.120981
CPU user time (s): 0.120981
CPU system time (s): 0
CPU usage (%): 98.4721
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.120981
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= 200
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 0.003999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node18 on Mon Feb 19 02:45:35 UTC 2007

IDJOB= 298273
IDBENCH= 19982
IDSOLVER= 103
FILE ID= node18/298273-1171853135

PBS_JOBID= 3839395

Free space on /tmp= 66546 MiB

SOLVER NAME= saps 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v500/unif-k3-r4.26-v500-c2130-S1965764400-19.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/298273-1171853135/saps /tmp/evaluation/298273-1171853135/instance-298273-1171853135.cnf  222232861   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-298273-1171853135 -o ROOT/results/node18/solver-298273-1171853135 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/298273-1171853135/saps /tmp/evaluation/298273-1171853135/instance-298273-1171853135.cnf  222232861   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  a8fcc21a1c405b91adf9e5bdbb6b4ddd

RANDOM SEED= 222232861

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node18.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:       1645872 kB
Buffers:         49628 kB
Cached:         230600 kB
SwapCached:          0 kB
Active:         270420 kB
Inactive:        69384 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1645872 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2212 kB
Writeback:           0 kB
Mapped:          78424 kB
Slab:            55820 kB
Committed_AS:   785264 kB
PageTables:       1668 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 node18 on Mon Feb 19 02:45:35 UTC 2007