Trace number 310505

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 0.665898 0.666022

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S2099846342-04-SAT.cnf
MD5SUM23ea53255de4a3778ef34ac8baaa8ebc
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.056991
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)

0.61/0.66	c try 1 flip j 479878
0.61/0.66	c A solution is found
0.61/0.66	s SATISFIABLE
0.61/0.66	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 
0.61/0.66	v 0 
0.61/0.66	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/node38/watcher-310505-1172560154 -o ROOT/results/node38/solver-310505-1172560154 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310505-1172560154/FH /tmp/evaluation/310505-1172560154/instance-310505-1172560154.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: 0.85 0.97 1.08 3/64 28958
/proc/meminfo: memFree=1870656/2055920 swapFree=4183692/4192956
[pid=28958] ppid=28956 vsize=244848 CPUtime=0
/proc/28958/stat : 28958 (FH) R 28956 28958 28181 0 -1 4194304 129 0 0 0 0 0 0 0 18 0 1 0 275971256 250724352 112 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134523434 0 0 4096 0 0 0 0 17 1 0 0
/proc/28958/statm: 61212 112 36 103 0 60716 0

[startup+0.106267 s]
/proc/loadavg: 0.85 0.97 1.08 3/64 28958
/proc/meminfo: memFree=1870656/2055920 swapFree=4183692/4192956
[pid=28958] ppid=28956 vsize=246400 CPUtime=0.1
/proc/28958/stat : 28958 (FH) R 28956 28958 28181 0 -1 4194304 206 0 0 0 10 0 0 0 18 0 1 0 275971256 252313600 186 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134552167 0 0 4096 0 0 0 0 17 1 0 0
/proc/28958/statm: 61600 186 40 103 0 61104 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246400

[startup+0.514312 s]
/proc/loadavg: 0.85 0.97 1.08 3/64 28958
/proc/meminfo: memFree=1870656/2055920 swapFree=4183692/4192956
[pid=28958] ppid=28956 vsize=246400 CPUtime=0.51
/proc/28958/stat : 28958 (FH) R 28956 28958 28181 0 -1 4194304 206 0 0 0 51 0 0 0 21 0 1 0 275971256 252313600 186 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134554071 0 0 4096 0 0 0 0 17 1 0 0
/proc/28958/statm: 61600 186 40 103 0 61104 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 246400

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

[startup+0.616324 s]
/proc/loadavg: 0.85 0.97 1.08 3/64 28958
/proc/meminfo: memFree=1870656/2055920 swapFree=4183692/4192956
[pid=28958] ppid=28956 vsize=246400 CPUtime=0.61
/proc/28958/stat : 28958 (FH) R 28956 28958 28181 0 -1 4194304 206 0 0 0 61 0 0 0 22 0 1 0 275971256 252313600 186 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134558681 0 0 4096 0 0 0 0 17 1 0 0
/proc/28958/statm: 61600 186 40 103 0 61104 0
Current children cumulated CPU time (s) 0.61
Current children cumulated vsize (KiB) 246400

Child status: 10
Real time (s): 0.666022
CPU time (s): 0.665898
CPU user time (s): 0.663899
CPU system time (s): 0.001999
CPU usage (%): 99.9814
Max. virtual memory (cumulated for all children) (KiB): 246400

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.663899
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 219
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 0.003999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node38 on Tue Feb 27 07:09:14 UTC 2007

IDJOB= 310505
IDBENCH= 20289
IDSOLVER= 117
FILE ID= node38/310505-1172560154

PBS_JOBID= 3971865

Free space on /tmp= 66554 MiB

SOLVER NAME= FH 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S2099846342-04-SAT.cnf
COMMAND LINE= /tmp/evaluation/310505-1172560154/FH /tmp/evaluation/310505-1172560154/instance-310505-1172560154.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node38/watcher-310505-1172560154 -o ROOT/results/node38/solver-310505-1172560154 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310505-1172560154/FH /tmp/evaluation/310505-1172560154/instance-310505-1172560154.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  23ea53255de4a3778ef34ac8baaa8ebc

RANDOM SEED= 250917815

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node38.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		: 3000.233
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		: 3000.233
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:       1871008 kB
Buffers:         22080 kB
Cached:         115416 kB
SwapCached:       3468 kB
Active:          77072 kB
Inactive:        70276 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1871008 kB
SwapTotal:     4192956 kB
SwapFree:      4183692 kB
Dirty:            6300 kB
Writeback:           0 kB
Mapped:          15300 kB
Slab:            23536 kB
Committed_AS:   573124 kB
PageTables:       1468 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= 66554 MiB

End job on node38 on Tue Feb 27 07:09:15 UTC 2007