Trace number 297303

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
FH 2007-02-08SAT 0.036993 0.0390051

General information on the benchmark

Namerandom/OnTreshold/3SAT/v550/
unif-k3-r4.26-v550-c2343-S1456038697-16.SAT.shuffled.cnf
MD5SUM477dc097da7e642f48b5bde247eb1f2d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.036993
Satisfiable
(Un)Satisfiability was proved
Number of variables550
Number of clauses2343
Sum of the clauses size7029
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32343
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.03	c try 1 flip j 17992
0.00/0.03	c A solution is found
0.00/0.03	s SATISFIABLE
0.00/0.03	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 
0.00/0.03	v 0 
0.00/0.03	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/node11/watcher-297303-1171836637 -o ROOT/results/node11/solver-297303-1171836637 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/297303-1171836637/FH /tmp/evaluation/297303-1171836637/instance-297303-1171836637.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 0.97 0.94 3/77 14516
/proc/meminfo: memFree=269104/2055920 swapFree=4192812/4192956
[pid=14516] ppid=14514 vsize=244848 CPUtime=0
/proc/14516/stat : 14516 (FH) R 14514 14516 13238 0 -1 4194304 130 0 0 0 0 0 0 0 18 0 1 0 203618233 250724352 113 18446744073709551615 134512640 134936988 4294956640 18446744073709551615 134522058 0 0 4096 0 0 0 0 17 1 0 0
/proc/14516/statm: 61212 113 36 103 0 60716 0

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

Child status: 10
Real time (s): 0.0390051
CPU time (s): 0.036993
CPU user time (s): 0.035994
CPU system time (s): 0.000999
CPU usage (%): 94.8415
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.035994
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= 218
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 0.001999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node11 on Sun Feb 18 22:10:37 UTC 2007

IDJOB= 297303
IDBENCH= 19958
IDSOLVER= 117
FILE ID= node11/297303-1171836637

PBS_JOBID= 3839375

Free space on /tmp= 66539 MiB

SOLVER NAME= FH 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v550/unif-k3-r4.26-v550-c2343-S1456038697-16.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/297303-1171836637/FH /tmp/evaluation/297303-1171836637/instance-297303-1171836637.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-297303-1171836637 -o ROOT/results/node11/solver-297303-1171836637 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/297303-1171836637/FH /tmp/evaluation/297303-1171836637/instance-297303-1171836637.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  477dc097da7e642f48b5bde247eb1f2d

RANDOM SEED= 463786934

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node11.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		: 3000.243
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		: 3000.243
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:        269520 kB
Buffers:         51300 kB
Cached:        1619052 kB
SwapCached:          0 kB
Active:         254684 kB
Inactive:      1459096 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        269520 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            6256 kB
Writeback:           0 kB
Mapped:          62328 kB
Slab:            58148 kB
Committed_AS:   635972 kB
PageTables:       1760 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= 66539 MiB

End job on node11 on Sun Feb 18 22:10:37 UTC 2007