Trace number 298395

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 0.206967 0.208647

General information on the benchmark

Namerandom/OnTreshold/3SAT/v500/
unif-k3-r4.26-v500-c2130-S1736865558-13.SAT.shuffled.cnf
MD5SUM3731b562515f41a5190f82ea078ee6c1
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.06299
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)

0.10/0.20	c 
0.10/0.20	c UBCSAT version 1.1.0rr
0.10/0.20	c 
0.10/0.20	c http://www.satlib.org/ubcsat
0.10/0.20	c 
0.10/0.20	c ubcsat -h for help
0.10/0.20	c 
0.10/0.20	c  -runs 1 
0.10/0.20	c  -cutoff 4294967295 
0.10/0.20	c  -timeout 0.000000 
0.10/0.20	c  -gtimeout 0.000000 
0.10/0.20	c  -noimprove 0 
0.10/0.20	c  -target 0 
0.10/0.20	c  -wtarget 0.000000 
0.10/0.20	c  -seed 776329312 
0.10/0.20	c  -solve 0 
0.10/0.20	c  -find,-numsol 0 
0.10/0.20	c  -findunique 0 
0.10/0.20	c  -srestart 0 
0.10/0.20	c  -prestart 0.000000 
0.10/0.20	c  -drestart 0 
0.10/0.20	c 
0.10/0.20	c  -alpha 1.126000 
0.10/0.20	c  -rho 0.666000 
0.10/0.20	c  -ps 0.033000 
0.10/0.20	c  -wp 0.060000 
0.10/0.20	c  -sapsthresh -0.100000 
0.10/0.20	c 
0.10/0.20	s SATISFIABLE
0.10/0.20	v  1 2 -3 4 -5 6 7 8 -9 -10
0.10/0.20	v  11 12 -13 14 -15 -16 -17 -18 -19 -20
0.10/0.20	v  21 -22 23 24 -25 -26 27 28 -29 30
0.10/0.20	v  31 32 -33 34 35 36 -37 -38 39 -40
0.10/0.20	v  41 42 43 -44 45 -46 -47 -48 49 50
0.10/0.20	v  -51 -52 53 -54 -55 -56 57 58 59 60
0.10/0.20	v  -61 62 63 -64 -65 -66 67 -68 -69 70
0.10/0.20	v  71 -72 -73 74 -75 76 -77 78 79 -80
0.10/0.20	v  81 82 -83 -84 85 -86 -87 -88 89 -90
0.10/0.20	v  91 -92 -93 94 -95 96 -97 -98 -99 100
0.10/0.20	v  101 102 -103 -104 105 106 107 108 -109 110
0.10/0.20	v  -111 112 113 -114 115 116 -117 -118 -119 -120
0.10/0.20	v  -121 -122 123 -124 -125 -126 -127 128 -129 -130
0.10/0.20	v  -131 132 -133 134 135 136 -137 138 -139 140
0.10/0.20	v  141 -142 -143 144 -145 146 -147 148 149 150
0.10/0.20	v  -151 -152 153 -154 155 156 -157 -158 -159 160
0.10/0.20	v  -161 -162 -163 -164 -165 -166 -167 -168 169 170
0.10/0.20	v  -171 172 173 174 -175 -176 177 -178 179 180
0.10/0.20	v  -181 -182 183 -184 -185 -186 -187 188 189 190
0.10/0.20	v  191 -192 -193 194 -195 196 -197 198 -199 -200
0.10/0.20	v  -201 202 203 204 205 -206 -207 208 209 210
0.10/0.20	v  211 -212 213 214 215 -216 217 218 219 -220
0.10/0.20	v  -221 222 -223 -224 -225 -226 -227 -228 229 230
0.10/0.20	v  231 232 -233 234 -235 236 237 238 -239 -240
0.10/0.20	v  -241 242 -243 244 245 246 247 248 -249 250
0.10/0.20	v  251 252 253 254 255 -256 -257 258 -259 -260
0.10/0.20	v  261 262 263 -264 -265 -266 -267 -268 -269 270
0.10/0.20	v  271 272 273 -274 275 -276 277 278 -279 -280
0.10/0.20	v  -281 -282 283 -284 285 -286 -287 -288 289 -290
0.10/0.20	v  291 -292 -293 -294 -295 296 -297 298 -299 300
0.10/0.20	v  301 -302 -303 -304 305 -306 307 308 -309 310
0.10/0.20	v  -311 -312 -313 -314 -315 -316 -317 318 319 320
0.10/0.20	v  -321 -322 -323 324 -325 326 -327 -328 329 330
0.10/0.20	v  -331 332 -333 334 335 -336 -337 -338 339 -340
0.10/0.20	v  -341 -342 343 344 345 -346 347 -348 -349 -350
0.10/0.20	v  -351 -352 -353 354 355 -356 -357 358 359 360
0.10/0.20	v  -361 -362 363 364 -365 -366 -367 -368 369 370
0.10/0.20	v  -371 372 -373 -374 -375 -376 -377 -378 379 380
0.10/0.20	v  381 382 -383 384 385 -386 -387 388 -389 -390
0.10/0.20	v  391 392 393 -394 -395 396 -397 -398 -399 -400
0.10/0.20	v  401 -402 403 404 405 406 -407 408 409 -410
0.10/0.20	v  411 412 -413 -414 -415 -416 417 418 419 420
0.10/0.20	v  -421 -422 423 424 425 -426 -427 -428 429 -430
0.10/0.20	v  -431 -432 -433 434 -435 -436 -437 438 439 -440
0.10/0.20	v  -441 442 -443 -444 445 446 -447 -448 -449 450
0.10/0.20	v  451 -452 -453 -454 -455 -456 -457 -458 459 460
0.10/0.20	v  -461 -462 463 464 -465 466 -467 -468 469 -470
0.10/0.20	v  471 -472 473 -474 -475 -476 -477 -478 -479 480
0.10/0.20	v  -481 482 -483 -484 485 -486 487 -488 -489 490
0.10/0.20	v  -491 492 -493 -494 495 -496 -497 -498 499 -500
0.10/0.20	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/node76/watcher-298395-1171855516 -o ROOT/results/node76/solver-298395-1171855516 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/298395-1171855516/sapsrt /tmp/evaluation/298395-1171855516/instance-298395-1171855516.cnf 776329312 

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 3/69 16252
/proc/meminfo: memFree=1133904/2055888 swapFree=4087076/4096564
[pid=16252] ppid=16250 vsize=5156 CPUtime=0
/proc/16252/stat : 16252 (sapsrt) R 16250 16252 15486 0 -1 4194304 186 0 0 0 0 0 0 0 20 0 1 0 205509956 5279744 171 18446744073709551615 134512640 135167692 4294956704 18446744073709551615 134549537 0 0 4096 0 0 0 0 17 1 0 0
/proc/16252/statm: 1289 171 83 159 0 1128 0

[startup+0.107032 s]
/proc/loadavg: 0.92 0.98 0.99 3/69 16252
/proc/meminfo: memFree=1133904/2055888 swapFree=4087076/4096564
[pid=16252] ppid=16250 vsize=5156 CPUtime=0.1
/proc/16252/stat : 16252 (sapsrt) R 16250 16252 15486 0 -1 4194304 186 0 0 0 10 0 0 0 21 0 1 0 205509956 5279744 171 18446744073709551615 134512640 135167692 4294956704 18446744073709551615 134714519 0 0 4096 0 0 0 0 17 1 0 0
/proc/16252/statm: 1289 171 83 159 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+0.107032 s]
/proc/loadavg: 0.92 0.98 0.99 3/69 16252
/proc/meminfo: memFree=1133904/2055888 swapFree=4087076/4096564
[pid=16252] ppid=16250 vsize=5156 CPUtime=0.1
/proc/16252/stat : 16252 (sapsrt) R 16250 16252 15486 0 -1 4194304 186 0 0 0 10 0 0 0 21 0 1 0 205509956 5279744 171 18446744073709551615 134512640 135167692 4294956704 18446744073709551615 134714519 0 0 4096 0 0 0 0 17 1 0 0
/proc/16252/statm: 1289 171 83 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

Child status: 10
Real time (s): 0.208647
CPU time (s): 0.206967
CPU user time (s): 0.205968
CPU system time (s): 0.000999
CPU usage (%): 99.1948
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.205968
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= 0

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node76 on Mon Feb 19 03:25:16 UTC 2007

IDJOB= 298395
IDBENCH= 19985
IDSOLVER= 102
FILE ID= node76/298395-1171855516

PBS_JOBID= 3839743

Free space on /tmp= 66649 MiB

SOLVER NAME= sapsrt 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v500/unif-k3-r4.26-v500-c2130-S1736865558-13.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/298395-1171855516/sapsrt /tmp/evaluation/298395-1171855516/instance-298395-1171855516.cnf  776329312       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-298395-1171855516 -o ROOT/results/node76/solver-298395-1171855516 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/298395-1171855516/sapsrt /tmp/evaluation/298395-1171855516/instance-298395-1171855516.cnf  776329312       

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  3731b562515f41a5190f82ea078ee6c1

RANDOM SEED= 776329312

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node76.alineos.net 2.6.9-34.ELsmp #1 SMP Thu Mar 9 06:23:23 GMT 2006 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		: 3000.219
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	: 6006.18
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		: 3000.219
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	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055888 kB
MemFree:       1134312 kB
Buffers:         43820 kB
Cached:         781436 kB
SwapCached:       3460 kB
Active:         587664 kB
Inactive:       247592 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1134312 kB
SwapTotal:     4096564 kB
SwapFree:      4087076 kB
Dirty:            2192 kB
Writeback:           0 kB
Mapped:          15392 kB
Slab:            72648 kB
Committed_AS:   941296 kB
PageTables:       1424 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66649 MiB

End job on node76 on Mon Feb 19 03:25:17 UTC 2007