Trace number 310598

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
MiraXT v3SAT 0.372942 0.197216

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1788789488-19-SAT.cnf
MD5SUM8dd20c2b2815f1615e92da9f7d25dd5d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012997
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c Starting MiraXTv3...
0.29/0.19	s SATISFIABLE
0.29/0.19	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 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.4 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node19/watcher-310598-1178872352 -o ROOT/results/node19/solver-310598-1178872352 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/310598-1178872352/MiraXTv3_dyn /tmp/evaluation/310598-1178872352/instance-310598-1178872352.cnf 

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): 2400 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: 0.99 0.97 0.99 3/77 14472
/proc/meminfo: memFree=1794760/2055920 swapFree=4148252/4192956
[pid=14472] ppid=14470 vsize=3920 CPUtime=0
/proc/14472/stat : 14472 (MiraXTv3_dyn) R 14470 14472 14234 0 -1 4194304 302 0 0 0 0 0 0 0 18 0 1 0 335152615 4014080 277 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 7922637 0 0 4096 0 0 0 0 17 0 0 0
/proc/14472/statm: 980 277 206 20 0 338 0

[startup+0.04253 s]
/proc/loadavg: 0.99 0.97 0.99 3/77 14472
/proc/meminfo: memFree=1794760/2055920 swapFree=4148252/4192956
[pid=14472] ppid=14470 vsize=5764 CPUtime=0.06
/proc/14472/stat : 14472 (MiraXTv3_dyn) S 14470 14472 14234 0 -1 4194304 534 0 0 0 6 0 0 0 18 0 3 0 335152615 5902336 509 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 0 0 0
/proc/14472/statm: 1441 509 218 20 0 799 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5764

[startup+0.12887 s]
/proc/loadavg: 0.99 0.97 0.99 3/77 14472
/proc/meminfo: memFree=1794760/2055920 swapFree=4148252/4192956
[pid=14472] ppid=14470 vsize=6884 CPUtime=0.29
/proc/14472/stat : 14472 (MiraXTv3_dyn) S 14470 14472 14234 0 -1 4194304 767 0 0 0 29 0 0 0 18 0 3 0 335152615 7049216 742 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 0 0 0
/proc/14472/statm: 1721 742 218 20 0 1079 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6884

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

Child status: 10
Real time (s): 0.197216
CPU time (s): 0.372942
CPU user time (s): 0.369943
CPU system time (s): 0.002999
CPU usage (%): 189.103
Max. virtual memory (cumulated for all children) (KiB): 6884

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.369943
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= 846
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= 20
involuntary context switches= 8

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node19 on Fri May 11 08:32:32 UTC 2007

IDJOB= 310598
IDBENCH= 20291
IDSOLVER= 128
FILE ID= node19/310598-1178872352

PBS_JOBID= 5251052

Free space on /tmp= 66560 MiB

SOLVER NAME= MiraXT v3
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1788789488-19-SAT.cnf
COMMAND LINE= /tmp/evaluation/310598-1178872352/MiraXTv3_dyn /tmp/evaluation/310598-1178872352/instance-310598-1178872352.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node19/watcher-310598-1178872352 -o ROOT/results/node19/solver-310598-1178872352 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/310598-1178872352/MiraXTv3_dyn /tmp/evaluation/310598-1178872352/instance-310598-1178872352.cnf            

META MD5SUM SOLVER= 2ad149617ed8d249d89b067eb44c33da
MD5SUM BENCH=  8dd20c2b2815f1615e92da9f7d25dd5d

RANDOM SEED= 891539326

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node19.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		: 3000.213
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		: 3000.213
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:       1794976 kB
Buffers:         47336 kB
Cached:         128748 kB
SwapCached:      14248 kB
Active:         102068 kB
Inactive:        97656 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1794976 kB
SwapTotal:     4192956 kB
SwapFree:      4148252 kB
Dirty:            3936 kB
Writeback:           0 kB
Mapped:          29820 kB
Slab:            46800 kB
Committed_AS:  9171972 kB
PageTables:       1784 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= 66560 MiB

End job on node19 on Fri May 11 08:32:33 UTC 2007