Trace number 371745

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 0.771881 0.77319

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 benchmark0.269958
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)

0.70/0.77	c 
0.70/0.77	c UBCSAT version 1.1.0rr
0.70/0.77	c 
0.70/0.77	c http://www.satlib.org/ubcsat
0.70/0.77	c 
0.70/0.77	c ubcsat -h for help
0.70/0.77	c 
0.70/0.77	c  -runs 1 
0.70/0.77	c  -cutoff 4294967295 
0.70/0.77	c  -timeout 0.000000 
0.70/0.77	c  -gtimeout 0.000000 
0.70/0.77	c  -noimprove 0 
0.70/0.77	c  -target 0 
0.70/0.77	c  -wtarget 0.000000 
0.70/0.77	c  -seed 790512878 
0.70/0.77	c  -solve 0 
0.70/0.77	c  -find,-numsol 0 
0.70/0.77	c  -findunique 0 
0.70/0.77	c  -srestart 0 
0.70/0.77	c  -prestart 0.000000 
0.70/0.77	c  -drestart 0 
0.70/0.77	c 
0.70/0.77	c  -alpha 1.126000 
0.70/0.77	c  -rho 0.666000 
0.70/0.77	c  -ps 0.033000 
0.70/0.77	c  -wp 0.060000 
0.70/0.77	c  -sapsthresh -0.100000 
0.70/0.77	c 
0.70/0.77	s SATISFIABLE
0.70/0.77	v  -1 -2 3 4 -5 -6 -7 8 9 10
0.70/0.77	v  -11 -12 13 14 -15 16 -17 -18 19 -20
0.70/0.77	v  -21 -22 -23 24 25 26 27 -28 -29 -30
0.70/0.77	v  31 -32 33 -34 35 -36 37 38 -39 -40
0.70/0.77	v  -41 42 43 -44 -45 -46 -47 -48 -49 -50
0.70/0.77	v  51 52 -53 54 55 56 -57 58 59 -60
0.70/0.77	v  61 62 63 64 -65 -66 67 68 69 70
0.70/0.77	v  71 72 -73 -74 -75 76 -77 78 -79 -80
0.70/0.77	v  -81 82 -83 84 85 86 -87 88 -89 -90
0.70/0.77	v  91 -92 -93 -94 -95 96 97 98 99 -100
0.70/0.77	v  101 -102 103 -104 105 -106 -107 108 109 110
0.70/0.77	v  -111 112 113 -114 -115 -116 117 -118 -119 120
0.70/0.77	v  -121 122 -123 124 -125 126 -127 -128 -129 -130
0.70/0.77	v  -131 132 133 134 135 136 -137 -138 139 -140
0.70/0.77	v  141 -142 -143 -144 145 -146 -147 148 -149 -150
0.70/0.77	v  -151 -152 153 -154 155 -156 -157 -158 -159 160
0.70/0.77	v  -161 162 163 164 165 166 -167 168 -169 -170
0.70/0.77	v  171 -172 173 174 175 -176 -177 178 179 -180
0.70/0.77	v  -181 182 183 184 185 186 187 188 189 190
0.70/0.77	v  -191 -192 193 -194 195 -196 -197 198 199 -200
0.70/0.77	v  -201 202 203 204 205 -206 207 208 -209 -210
0.70/0.77	v  211 212 213 -214 -215 -216 217 -218 -219 220
0.70/0.77	v  -221 -222 223 224 -225 -226 -227 -228 -229 -230
0.70/0.77	v  -231 232 233 -234 235 -236 -237 -238 -239 240
0.70/0.77	v  -241 242 -243 244 245 -246 -247 248 -249 -250
0.70/0.77	v  251 -252 -253 254 255 -256 257 -258 -259 260
0.70/0.77	v  -261 262 -263 -264 265 -266 267 268 -269 -270
0.70/0.77	v  -271 272 -273 -274 275 276 -277 -278 -279 -280
0.70/0.77	v  -281 282 -283 284 -285 286 -287 -288 -289 -290
0.70/0.77	v  -291 -292 293 -294 295 296 297 298 -299 300
0.70/0.77	v  301 302 303 304 -305 306 307 308 309 -310
0.70/0.77	v  -311 312 313 -314 -315 316 -317 -318 -319 -320
0.70/0.77	v  -321 -322 323 -324 325 326 -327 -328 329 -330
0.70/0.77	v  -331 -332 -333 334 335 336 -337 338 339 -340
0.70/0.77	v  341 -342 343 -344 -345 -346 -347 348 -349 -350
0.70/0.77	v  -351 -352 -353 354 355 -356 -357 -358 -359 360
0.70/0.77	v  -361 362 363 364 365 -366 367 368 -369 -370
0.70/0.77	v  371 -372 -373 -374 -375 -376 377 -378 379 -380
0.70/0.77	v  381 382 -383 384 385 386 -387 -388 -389 390
0.70/0.77	v  -391 -392 393 -394 395 396 -397 -398 399 -400
0.70/0.77	v  -401 -402 403 404 -405 406 407 408 -409 -410
0.70/0.77	v  411 412 413 -414 -415 416 -417 -418 -419 -420
0.70/0.77	v  -421 -422 -423 424 425 -426 -427 428 -429 430
0.70/0.77	v  -431 432 -433 -434 435 -436 -437 -438 -439 -440
0.70/0.77	v  441 -442 443 -444 445 -446 -447 448 449 450
0.70/0.77	v  451 -452 453 -454 -455 456 -457 -458 459 -460
0.70/0.77	v  -461 -462 -463 464 -465 466 -467 468 469 -470
0.70/0.77	v  471 -472 -473 -474 475 -476 -477 -478 479 -480
0.70/0.77	v  481 482 483 484 485 486 487 -488 489 490
0.70/0.77	v  -491 -492 -493 494 -495 -496 497 498 499 -500
0.70/0.77	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/node51/watcher-371745-1177545288 -o ROOT/results/node51/solver-371745-1177545288 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371745-1177545288/sapsrt /tmp/evaluation/371745-1177545288/instance-371745-1177545288.cnf 790512878 

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 0.11 0.27 3/64 8177
/proc/meminfo: memFree=1791480/2055920 swapFree=4183264/4192956
[pid=8177] ppid=8175 vsize=5156 CPUtime=0
/proc/8177/stat : 8177 (sapsrt) R 8175 8177 8123 0 -1 4194304 186 0 0 0 0 0 0 0 18 0 1 0 109373962 5279744 171 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134705725 0 0 4096 0 0 0 0 17 1 0 0
/proc/8177/statm: 1289 171 83 159 0 1128 0

[startup+0.0908911 s]
/proc/loadavg: 0.00 0.11 0.27 3/64 8177
/proc/meminfo: memFree=1791480/2055920 swapFree=4183264/4192956
[pid=8177] ppid=8175 vsize=5156 CPUtime=0.08
/proc/8177/stat : 8177 (sapsrt) R 8175 8177 8123 0 -1 4194304 186 0 0 0 8 0 0 0 18 0 1 0 109373962 5279744 171 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134714886 0 0 4096 0 0 0 0 17 1 0 0
/proc/8177/statm: 1289 171 83 159 0 1128 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5156

[startup+0.102891 s]
/proc/loadavg: 0.00 0.11 0.27 3/64 8177
/proc/meminfo: memFree=1791480/2055920 swapFree=4183264/4192956
[pid=8177] ppid=8175 vsize=5156 CPUtime=0.1
/proc/8177/stat : 8177 (sapsrt) R 8175 8177 8123 0 -1 4194304 186 0 0 0 10 0 0 0 18 0 1 0 109373962 5279744 171 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134714922 0 0 4096 0 0 0 0 17 1 0 0
/proc/8177/statm: 1289 171 83 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

[startup+0.302908 s]
/proc/loadavg: 0.00 0.11 0.27 3/64 8177
/proc/meminfo: memFree=1791480/2055920 swapFree=4183264/4192956
[pid=8177] ppid=8175 vsize=5156 CPUtime=0.3
/proc/8177/stat : 8177 (sapsrt) R 8175 8177 8123 0 -1 4194304 186 0 0 0 30 0 0 0 20 0 1 0 109373962 5279744 171 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134714251 0 0 4096 0 0 0 0 17 1 0 0
/proc/8177/statm: 1289 171 83 159 0 1128 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 5156

[startup+0.702947 s]
/proc/loadavg: 0.00 0.11 0.27 3/64 8177
/proc/meminfo: memFree=1791480/2055920 swapFree=4183264/4192956
[pid=8177] ppid=8175 vsize=5156 CPUtime=0.7
/proc/8177/stat : 8177 (sapsrt) R 8175 8177 8123 0 -1 4194304 186 0 0 0 70 0 0 0 23 0 1 0 109373962 5279744 171 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134553815 0 0 4096 0 0 0 0 17 1 0 0
/proc/8177/statm: 1289 171 83 159 0 1128 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 5156

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

Child status: 10
Real time (s): 0.77319
CPU time (s): 0.771881
CPU user time (s): 0.769882
CPU system time (s): 0.001999
CPU usage (%): 99.8307
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.769882
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= 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 0.002999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node51 on Wed Apr 25 23:54:48 UTC 2007

IDJOB= 371745
IDBENCH= 19978
IDSOLVER= 187
FILE ID= node51/371745-1177545288

PBS_JOBID= 4696377

Free space on /tmp= 66460 MiB

SOLVER NAME= sapsrt 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/371745-1177545288/sapsrt /tmp/evaluation/371745-1177545288/instance-371745-1177545288.cnf  790512878       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node51/watcher-371745-1177545288 -o ROOT/results/node51/solver-371745-1177545288 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371745-1177545288/sapsrt /tmp/evaluation/371745-1177545288/instance-371745-1177545288.cnf  790512878       

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  f01193a3f455045d150f231e0d56c100

RANDOM SEED= 790512878

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node51.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		: 3000.223
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		: 3000.223
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:       1791888 kB
Buffers:          9052 kB
Cached:         112708 kB
SwapCached:       3428 kB
Active:         106980 kB
Inactive:       101844 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1791888 kB
SwapTotal:     4192956 kB
SwapFree:      4183264 kB
Dirty:            2200 kB
Writeback:           0 kB
Mapped:          15220 kB
Slab:            41264 kB
Committed_AS:  3799028 kB
PageTables:       1408 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= 66460 MiB

End job on node51 on Wed Apr 25 23:54:49 UTC 2007