Trace number 299228

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
Hybrid1 2007-02-08SAT 0.107982 0.109226

General information on the benchmark

Namerandom/OnTreshold/3SAT/v600/
unif-k3-r4.261-v600-c2556-S1104692480-03.SAT.shuffled.cnf
MD5SUMe1848ef5581233d7edc388a9e0c74c1a
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.020996
Satisfiable
(Un)Satisfiability was proved
Number of variables600
Number of clauses2556
Sum of the clauses size7668
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32556
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.10/0.10	c try 1 flip j 61962
0.10/0.10	c A solution is found
0.10/0.10	s SATISFIABLE
0.10/0.10	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 -518 519 520 521 522 -523 524 -525 -526 -527 528 529 -530 -531 532 533 -534 535 -536 -537 -538 -539 540 -541 542 543 544 -545 546 -547 548 -549 -550 551 552 -553 -554 -555 -556 557 -558 -559 -560 561 562 563 -564 -565 -566 -567 -568 569 570 -571 572 -573 574 -575 -576 577 -578 -579 580 -581 -582 583 584 585 -586 587 588 -589 590 -591 -592 -593 594 -595 596 -597 598 -599 -600 
0.10/0.10	v 0 
0.10/0.10	c Done (mycputime is 0.000 seconds)

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/node35/watcher-299228-1171868163 -o ROOT/results/node35/solver-299228-1171868163 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/299228-1171868163/Hybrid1 /tmp/evaluation/299228-1171868163/instance-299228-1171868163.cnf 

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: 1.00 1.00 1.00 3/64 19835
/proc/meminfo: memFree=633896/2055920 swapFree=4183700/4192956
[pid=19835] ppid=19833 vsize=244848 CPUtime=0
/proc/19835/stat : 19835 (Hybrid1) R 19833 19835 14938 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 180580026 250724352 121 18446744073709551615 134512640 134935932 4294956640 18446744073709551615 134588695 0 0 4096 0 0 0 0 17 1 0 0
/proc/19835/statm: 61212 121 40 103 0 60716 0

[startup+0.1067 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 19835
/proc/meminfo: memFree=633896/2055920 swapFree=4183700/4192956
[pid=19835] ppid=19833 vsize=246532 CPUtime=0.1
/proc/19835/stat : 19835 (Hybrid1) R 19833 19835 14938 0 -1 4194304 219 0 0 0 10 0 0 0 18 0 1 0 180580026 252448768 199 18446744073709551615 134512640 134935932 4294956640 18446744073709551615 134546509 0 0 4096 0 0 0 0 17 1 0 0
/proc/19835/statm: 61633 199 44 103 0 61137 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246532

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

[startup+0.1067 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 19835
/proc/meminfo: memFree=633896/2055920 swapFree=4183700/4192956
[pid=19835] ppid=19833 vsize=246532 CPUtime=0.1
/proc/19835/stat : 19835 (Hybrid1) R 19833 19835 14938 0 -1 4194304 219 0 0 0 10 0 0 0 18 0 1 0 180580026 252448768 199 18446744073709551615 134512640 134935932 4294956640 18446744073709551615 134546509 0 0 4096 0 0 0 0 17 1 0 0
/proc/19835/statm: 61633 199 44 103 0 61137 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246532

Child status: 10
Real time (s): 0.109226
CPU time (s): 0.107982
CPU user time (s): 0.106983
CPU system time (s): 0.000999
CPU usage (%): 98.861
Max. virtual memory (cumulated for all children) (KiB): 246532

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.106983
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= 232
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= 1

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node35 on Mon Feb 19 06:56:03 UTC 2007

IDJOB= 299228
IDBENCH= 20005
IDSOLVER= 115
FILE ID= node35/299228-1171868163

PBS_JOBID= 3839658

Free space on /tmp= 66558 MiB

SOLVER NAME= Hybrid1 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v600/unif-k3-r4.261-v600-c2556-S1104692480-03.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/299228-1171868163/Hybrid1 /tmp/evaluation/299228-1171868163/instance-299228-1171868163.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node35/watcher-299228-1171868163 -o ROOT/results/node35/solver-299228-1171868163 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/299228-1171868163/Hybrid1 /tmp/evaluation/299228-1171868163/instance-299228-1171868163.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  e1848ef5581233d7edc388a9e0c74c1a

RANDOM SEED= 665074823

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node35.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		: 3000.263
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		: 3000.263
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:        634368 kB
Buffers:         44556 kB
Cached:        1270748 kB
SwapCached:       3828 kB
Active:         852248 kB
Inactive:       473944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        634368 kB
SwapTotal:     4192956 kB
SwapFree:      4183700 kB
Dirty:            6152 kB
Writeback:           0 kB
Mapped:          16136 kB
Slab:            81412 kB
Committed_AS:   710692 kB
PageTables:       1416 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= 66558 MiB

End job on node35 on Mon Feb 19 06:56:03 UTC 2007