Trace number 299638

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 0.105983 0.107105

General information on the benchmark

Namerandom/OnTreshold/3SAT/v650/
unif-k3-r4.261-v650-c2769-S1089058690-02.SAT.shuffled.cnf
MD5SUM67fab2237a85c249de45919413a62498
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05699
Satisfiable
(Un)Satisfiability was proved
Number of variables650
Number of clauses2769
Sum of the clauses size8307
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32769
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.10	c try 1 flip j 59837
0.00/0.10	c A solution is found
0.00/0.10	s SATISFIABLE
0.00/0.10	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 -601 602 603 -604 605 606 -607 -608 609 -610 -611 -612 -613 614 615 -616 -617 -618 619 -620 -621 -622 -623 624 -625 626 627 628 -629 -630 631 632 -633 634 -635 -636 -637 -638 -639 -640 641 -642 643 -644 645 646 647 -648 -649 650 
0.00/0.10	v 0 
0.00/0.10	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/node68/watcher-299638-1171875260 -o ROOT/results/node68/solver-299638-1171875260 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/299638-1171875260/Hybrid1 /tmp/evaluation/299638-1171875260/instance-299638-1171875260.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: 0.92 0.98 0.99 3/64 16336
/proc/meminfo: memFree=721280/2055920 swapFree=4183892/4192956
[pid=16336] ppid=16334 vsize=244848 CPUtime=0
/proc/16336/stat : 16336 (Hybrid1) R 16334 16336 15387 0 -1 4194304 122 0 0 0 0 0 0 0 18 0 1 0 207483614 250724352 105 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134588695 0 0 4096 0 0 0 0 17 1 0 0
/proc/16336/statm: 61212 109 40 103 0 60716 0

[startup+0.106771 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 16336
/proc/meminfo: memFree=721280/2055920 swapFree=4183892/4192956
[pid=16336] ppid=16334 vsize=0 CPUtime=0.1
/proc/16336/stat : 16336 (Hybrid1) D 16334 16336 15387 0 -1 4194308 241 0 0 0 10 0 0 0 18 0 1 0 207483614 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 18446744072100051646 0 0 17 1 0 0
/proc/16336/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 0

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

[startup+0.106771 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 16336
/proc/meminfo: memFree=721280/2055920 swapFree=4183892/4192956
[pid=16336] ppid=16334 vsize=0 CPUtime=0.1
/proc/16336/stat : 16336 (Hybrid1) D 16334 16336 15387 0 -1 4194308 241 0 0 0 10 0 0 0 18 0 1 0 207483614 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 18446744072100051646 0 0 17 1 0 0
/proc/16336/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 0

Child status: 10
Real time (s): 0.107105
CPU time (s): 0.105983
CPU user time (s): 0.104984
CPU system time (s): 0.000999
CPU usage (%): 98.9525
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.104984
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= 241
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 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node68 on Mon Feb 19 08:54:20 UTC 2007

IDJOB= 299638
IDBENCH= 20015
IDSOLVER= 115
FILE ID= node68/299638-1171875260

PBS_JOBID= 3839771

Free space on /tmp= 66558 MiB

SOLVER NAME= Hybrid1 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v650/unif-k3-r4.261-v650-c2769-S1089058690-02.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/299638-1171875260/Hybrid1 /tmp/evaluation/299638-1171875260/instance-299638-1171875260.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node68/watcher-299638-1171875260 -o ROOT/results/node68/solver-299638-1171875260 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/299638-1171875260/Hybrid1 /tmp/evaluation/299638-1171875260/instance-299638-1171875260.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  67fab2237a85c249de45919413a62498

RANDOM SEED= 882114112

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node68.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		: 3000.234
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:        721688 kB
Buffers:         50460 kB
Cached:        1160320 kB
SwapCached:       3088 kB
Active:         823372 kB
Inactive:       397592 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        721688 kB
SwapTotal:     4192956 kB
SwapFree:      4183892 kB
Dirty:            6212 kB
Writeback:           0 kB
Mapped:          15968 kB
Slab:            99408 kB
Committed_AS:   631932 kB
PageTables:       1384 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 node68 on Mon Feb 19 08:54:20 UTC 2007