Trace number 1523775

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
Hybrid2 2009-03-22SAT 4.86726 4.87179

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S1536609007-088.cnf
MD5SUM95e50be0ec36bd6dfa5233022c3ad7ac
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.00285
Satisfiable
(Un)Satisfiability was proved
Number of variables520
Number of clauses2210
Sum of the clauses size6630
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32210
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

4.79/4.87	c try 1 flip j 4746713
4.79/4.87	c A solution is found
4.79/4.87	s SATISFIABLE
4.79/4.87	v -1 2 3 -4 -5 6 7 8 -9 10 -11 -12 -13 14 -15 -16 17 18 -19 -20 -21 -22 23 24 -25 -26 -27 28 -29 -30 -31 -32 -33 -34 35 36 37 -38 -39 40 -41 -42 43 -44 45 46 47 -48 49 -50 -51 52 -53 54 55 -56 57 58 59 60 61 -62 -63 -64 -65 -66 -67 68 69 -70 71 72 -73 -74 75 -76 -77 78 79 -80 81 -82 83 -84 85 -86 -87 -88 -89 -90 91 -92 93 -94 -95 96 -97 -98 -99 100 -101 102 103 104 -105 -106 -107 108 109 -110 111 112 113 -114 115 -116 -117 118 119 -120 121 122 -123 -124 125 -126 -127 128 -129 -130 131 132 133 134 -135 -136 -137 138 139 -140 -141 142 143 144 -145 146 -147 -148 149 150 151 152 153 -154 -155 -156 -157 -158 -159 -160 -161 -162 -163 -164 165 166 -167 -168 -169 170 171 -172 -173 174 175 -176 -177 -178 -179 -180 181 182 183 -184 -185 -186 -187 188 189 190 191 192 -193 194 195 -196 197 -198 -199 200 201 202 -203 204 -205 -206 207 -208 209 210 211 -212 -213 -214 -215 216 -217 -218 -219 220 -221 222 223 224 225 226 -227 -228 -229 -230 231 232 233 234 -235 -236 237 238 -239 240 -241 242 243 244 245 246 -247 248 249 250 -251 -252 -253 -254 -255 256 257 -258 259 -260 -261 -262 -263 -264 -265 266 -267 -268 -269 270 -271 272 273 274 -275 276 277 278 279 -280 281 -282 283 284 285 -286 -287 288 289 290 291 292 293 -294 -295 -296 297 -298 299 -300 -301 302 -303 -304 305 306 307 -308 -309 -310 311 -312 -313 -314 -315 -316 -317 -318 319 320 -321 -322 -323 -324 -325 326 -327 328 -329 -330 331 332 -333 -334 -335 -336 337 338 339 -340 -341 -342 -343 344 345 -346 -347 -348 349 -350 -351 -352 -353 -354 -355 356 357 -358 -359 -360 -361 -362 -363 364 365 -366 -367 368 -369 -370 371 -372 -373 -374 -375 376 377 378 379 380 381 382 -383 384 -385 -386 387 -388 -389 390 391 -392 393 -394 -395 -396 -397 398 -399 400 -401 402 -403 404 405 406 407 -408 409 410 411 -412 413 -414 415 -416 417 -418 -419 420 -421 -422 423 424 425 426 427 -428 429 -430 431 -432 -433 -434 435 -436 437 438 -439 -440 441 442 443 444 445 446 447 448 -449 -450 451 -452 -453 -454 -455 -456 -457 458 459 -460 461 -462 -463 464 465 466 -467 -468 469 -470 471 472 -473 474 475 476 -477 -478 -479 480 -481 -482 -483 -484 -485 -486 -487 488 489 490 -491 492 -493 494 -495 496 -497 498 499 500 501 502 -503 -504 505 -506 507 508 -509 510 511 512 -513 514 -515 516 -517 -518 519 520 
4.79/4.87	v 0 
4.79/4.87	c Done (mycputime is 4.860 seconds)

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1523775-1238572227/watcher-1523775-1238572227 -o /tmp/evaluation-result-1523775-1238572227/solver-1523775-1238572227 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/Hybrid2 HOME/instance-1523775-1238572227.cnf 1389726280 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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: 1.99 1.85 1.45 3/64 9289
/proc/meminfo: memFree=1521608/2055920 swapFree=4176708/4192956
[pid=9289] ppid=9287 vsize=451072 CPUtime=0
/proc/9289/stat : 9289 (Hybrid2) R 9287 9289 8941 0 -1 4194304 144 0 0 0 0 0 0 0 18 0 1 0 1129884717 461897728 128 1992294400 134512640 135106774 4294956208 18446744073709551615 134524005 0 0 4096 0 0 0 0 17 0 0 0
/proc/9289/statm: 112768 128 53 145 0 111644 0

[startup+0.0925889 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 9289
/proc/meminfo: memFree=1521608/2055920 swapFree=4176708/4192956
[pid=9289] ppid=9287 vsize=454972 CPUtime=0.09
/proc/9289/stat : 9289 (Hybrid2) R 9287 9289 8941 0 -1 4194304 199 0 0 0 9 0 0 0 18 0 1 0 1129884717 465891328 183 1992294400 134512640 135106774 4294956208 18446744073709551615 134528392 0 0 4096 0 0 0 0 17 0 0 0
/proc/9289/statm: 113743 183 56 145 0 112619 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 454972

[startup+0.10159 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 9289
/proc/meminfo: memFree=1521608/2055920 swapFree=4176708/4192956
[pid=9289] ppid=9287 vsize=454972 CPUtime=0.09
/proc/9289/stat : 9289 (Hybrid2) R 9287 9289 8941 0 -1 4194304 199 0 0 0 9 0 0 0 18 0 1 0 1129884717 465891328 183 1992294400 134512640 135106774 4294956208 18446744073709551615 134518113 0 0 4096 0 0 0 0 17 0 0 0
/proc/9289/statm: 113743 183 56 145 0 112619 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 454972

[startup+0.301607 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 9289
/proc/meminfo: memFree=1521608/2055920 swapFree=4176708/4192956
[pid=9289] ppid=9287 vsize=454972 CPUtime=0.29
/proc/9289/stat : 9289 (Hybrid2) R 9287 9289 8941 0 -1 4194304 199 0 0 0 29 0 0 0 19 0 1 0 1129884717 465891328 183 1992294400 134512640 135106774 4294956208 18446744073709551615 134526846 0 0 4096 0 0 0 0 17 0 0 0
/proc/9289/statm: 113743 183 56 145 0 112619 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 454972

[startup+0.701643 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 9289
/proc/meminfo: memFree=1521608/2055920 swapFree=4176708/4192956
[pid=9289] ppid=9287 vsize=454972 CPUtime=0.69
/proc/9289/stat : 9289 (Hybrid2) R 9287 9289 8941 0 -1 4194304 199 0 0 0 69 0 0 0 23 0 1 0 1129884717 465891328 183 1992294400 134512640 135106774 4294956208 18446744073709551615 134528663 0 0 4096 0 0 0 0 17 0 0 0
/proc/9289/statm: 113743 183 56 145 0 112619 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 454972

[startup+1.50171 s]
/proc/loadavg: 1.99 1.85 1.45 2/65 9290
/proc/meminfo: memFree=1520896/2055920 swapFree=4176708/4192956
[pid=9289] ppid=9287 vsize=454972 CPUtime=1.49
/proc/9289/stat : 9289 (Hybrid2) R 9287 9289 8941 0 -1 4194304 199 0 0 0 149 0 0 0 25 0 1 0 1129884717 465891328 183 1992294400 134512640 135106774 4294956208 18446744073709551615 134528683 0 0 4096 0 0 0 0 17 0 0 0
/proc/9289/statm: 113743 183 56 145 0 112619 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 454972

[startup+3.10186 s]
/proc/loadavg: 1.99 1.85 1.45 2/65 9290
/proc/meminfo: memFree=1520768/2055920 swapFree=4176708/4192956
[pid=9289] ppid=9287 vsize=454972 CPUtime=3.09
/proc/9289/stat : 9289 (Hybrid2) R 9287 9289 8941 0 -1 4194304 199 0 0 0 309 0 0 0 25 0 1 0 1129884717 465891328 183 1992294400 134512640 135106774 4294956208 18446744073709551615 134518112 0 0 4096 0 0 0 0 17 0 0 0
/proc/9289/statm: 113743 183 56 145 0 112619 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 454972

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

[startup+3.90193 s]
/proc/loadavg: 1.91 1.84 1.45 2/65 9290
/proc/meminfo: memFree=1520576/2055920 swapFree=4176708/4192956
[pid=9289] ppid=9287 vsize=454972 CPUtime=3.89
/proc/9289/stat : 9289 (Hybrid2) R 9287 9289 8941 0 -1 4194304 199 0 0 0 389 0 0 0 25 0 1 0 1129884717 465891328 183 1992294400 134512640 135106774 4294956208 18446744073709551615 134528813 0 0 4096 0 0 0 0 17 0 0 0
/proc/9289/statm: 113743 183 56 145 0 112619 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 454972

[startup+4.30197 s]
/proc/loadavg: 1.91 1.84 1.45 2/65 9290
/proc/meminfo: memFree=1520576/2055920 swapFree=4176708/4192956
[pid=9289] ppid=9287 vsize=454972 CPUtime=4.29
/proc/9289/stat : 9289 (Hybrid2) R 9287 9289 8941 0 -1 4194304 199 0 0 0 429 0 0 0 25 0 1 0 1129884717 465891328 183 1992294400 134512640 135106774 4294956208 18446744073709551615 134526850 0 0 4096 0 0 0 0 17 0 0 0
/proc/9289/statm: 113743 183 56 145 0 112619 0
Current children cumulated CPU time (s) 4.29
Current children cumulated vsize (KiB) 454972

[startup+4.702 s]
/proc/loadavg: 1.91 1.84 1.45 2/65 9290
/proc/meminfo: memFree=1520576/2055920 swapFree=4176708/4192956
[pid=9289] ppid=9287 vsize=454972 CPUtime=4.69
/proc/9289/stat : 9289 (Hybrid2) R 9287 9289 8941 0 -1 4194304 199 0 0 0 469 0 0 0 25 0 1 0 1129884717 465891328 183 1992294400 134512640 135106774 4294956208 18446744073709551615 134527144 0 0 4096 0 0 0 0 17 0 0 0
/proc/9289/statm: 113743 183 56 145 0 112619 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 454972

[startup+4.80201 s]
/proc/loadavg: 1.91 1.84 1.45 2/65 9290
/proc/meminfo: memFree=1520576/2055920 swapFree=4176708/4192956
[pid=9289] ppid=9287 vsize=454972 CPUtime=4.79
/proc/9289/stat : 9289 (Hybrid2) R 9287 9289 8941 0 -1 4194304 199 0 0 0 479 0 0 0 25 0 1 0 1129884717 465891328 183 1992294400 134512640 135106774 4294956208 18446744073709551615 134528663 0 0 4096 0 0 0 0 17 0 0 0
/proc/9289/statm: 113743 183 56 145 0 112619 0
Current children cumulated CPU time (s) 4.79
Current children cumulated vsize (KiB) 454972

Child status: 10
Real time (s): 4.87179
CPU time (s): 4.86726
CPU user time (s): 4.86126
CPU system time (s): 0.005999
CPU usage (%): 99.9069
Max. virtual memory (cumulated for all children) (KiB): 454972

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.86126
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 216
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= 2
involuntary context switches= 30

runsolver used 0.005999 second user time and 0.017997 second system time

The end

Launcher Data 

Begin job on node51 at 2009-04-01 09:50:27
IDJOB=1523775
IDBENCH=70656
IDSOLVER=530
FILE ID=node51/1523775-1238572227
PBS_JOBID= 9062174
Free space on /tmp= 65256 MiB

SOLVER NAME= Hybrid2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S1536609007-088.cnf
COMMAND LINE= HOME/Hybrid2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523775-1238572227/watcher-1523775-1238572227 -o /tmp/evaluation-result-1523775-1238572227/solver-1523775-1238572227 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/Hybrid2 HOME/instance-1523775-1238572227.cnf 1389726280

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 95e50be0ec36bd6dfa5233022c3ad7ac
RANDOM SEED=1389726280

node51.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.234
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		: 3000.234
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:       1522024 kB
Buffers:         90736 kB
Cached:         345156 kB
SwapCached:      10052 kB
Active:         221076 kB
Inactive:       226324 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1522024 kB
SwapTotal:     4192956 kB
SwapFree:      4176708 kB
Dirty:            4620 kB
Writeback:           0 kB
Mapped:          17184 kB
Slab:            72420 kB
Committed_AS:  3115572 kB
PageTables:       1400 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= 65248 MiB
End job on node51 at 2009-04-01 09:50:32