Trace number 299198

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
adaptg2wsat0 2007-02-08SAT 0.047992 0.0476421

General information on the benchmark

Namerandom/OnTreshold/3SAT/v600/
unif-k3-r4.261-v600-c2556-S1496918883-18.SAT.shuffled.cnf
MD5SUMd80e4c0ebc99a45911a06aa336c2bf12
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.018996
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)

0.00/0.04	c try 1 flip j 31947
0.00/0.04	c A solution is found
0.00/0.04	s SATISFIABLE
0.00/0.04	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 
0.00/0.04	v 0 
0.00/0.04	c Done (mycputime is 0.030 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/node70/watcher-299198-1171867788 -o ROOT/results/node70/solver-299198-1171867788 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/299198-1171867788/adaptg2wsat0 /tmp/evaluation/299198-1171867788/instance-299198-1171867788.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: 1.06 1.00 1.00 3/64 18976
/proc/meminfo: memFree=418680/2055920 swapFree=4183276/4192956
[pid=18976] ppid=18974 vsize=215152 CPUtime=0
/proc/18976/stat : 18976 (adaptg2wsat0) R 18974 18976 18738 0 -1 4194304 139 0 0 0 0 0 0 0 18 0 1 0 169579496 220315648 122 18446744073709551615 134512640 134930208 4294956704 18446744073709551615 134522177 0 0 4096 0 0 0 0 17 1 0 0
/proc/18976/statm: 53788 122 40 101 0 53294 0

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

Child status: 10
Real time (s): 0.0476421
CPU time (s): 0.047992
CPU user time (s): 0.044993
CPU system time (s): 0.002999
CPU usage (%): 100.734
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.044993
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 213
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 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node70 on Mon Feb 19 06:49:48 UTC 2007

IDJOB= 299198
IDBENCH= 20004
IDSOLVER= 126
FILE ID= node70/299198-1171867788

PBS_JOBID= 3839763

Free space on /tmp= 66558 MiB

SOLVER NAME= adaptg2wsat0 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v600/unif-k3-r4.261-v600-c2556-S1496918883-18.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/299198-1171867788/adaptg2wsat0 /tmp/evaluation/299198-1171867788/instance-299198-1171867788.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node70/watcher-299198-1171867788 -o ROOT/results/node70/solver-299198-1171867788 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/299198-1171867788/adaptg2wsat0 /tmp/evaluation/299198-1171867788/instance-299198-1171867788.cnf            

META MD5SUM SOLVER= dc7cfffb7b5aa51d884144c196acd75c
MD5SUM BENCH=  d80e4c0ebc99a45911a06aa336c2bf12

RANDOM SEED= 20529865

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node70.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		: 3000.261
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		: 3000.261
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:        419152 kB
Buffers:         50324 kB
Cached:        1461880 kB
SwapCached:       4060 kB
Active:         835472 kB
Inactive:       686636 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        419152 kB
SwapTotal:     4192956 kB
SwapFree:      4183276 kB
Dirty:            6144 kB
Writeback:           0 kB
Mapped:          15288 kB
Slab:           100768 kB
Committed_AS:   237312 kB
PageTables:       1396 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 node70 on Mon Feb 19 06:49:48 UTC 2007