Trace number 310604

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
SATzilla RANDOMSAT 0.148976 0.151941

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)

0.10/0.15	c run March_dl for 5 seconds ... 
0.10/0.15	c Bin: Executing march_dl
0.10/0.15	c child exited successfully
0.10/0.15	c march_dl returned code 10.
0.10/0.15	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.10/0.15	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.10/0.15	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.10/0.15	c main()::
0.10/0.15	c initFormula():: searching for DIMACS p-line....
0.10/0.15	c initFormula():: the DIMACS p-line indicates a CNF of 630 variables and 2280 clauses.
0.10/0.15	c parseCNF():: parsing....
0.10/0.15	c parseCNF():: the CNF contains 0 unary clauses.
0.10/0.15	c runParser():: parsing was successful, warming up engines...
0.10/0.15	c simplify_formula():: removed 0 tautological, 55 satisfied and 0 duplicate clauses
0.10/0.15	c preprocessing fase I completed:: there are now 620 free variables and 2225 clauses.
0.10/0.15	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.10/0.15	c doublelook_init():: 90% succes rate goal.
0.10/0.15	c root_subsume():: 7 ternary clauses were subsumed, nrofceq = 1
0.10/0.15	c find_and_remove_tautogolies():: found and removed 1 tautologies
0.10/0.15	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 1
0.10/0.15	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 1
0.10/0.15	c lessRedundantTransformation():: nothing to be done.
0.10/0.15	c transformTo3SAT():: you gave me 630 variables and 2232 clauses.
0.10/0.15	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.10/0.15	c transformTo3SAT():: CHAINPLUS defined.
0.10/0.15	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.10/0.15	c transformTo3SAT():: the transformation yielded 630 variabels and 2232 clauses.
0.10/0.15	c main():: clause / variable ratio: ( 2232 / 630 ) = 3.54
0.10/0.15	c doublelook_init():: 90% succes rate goal.
0.10/0.15	c AddTernaryResolvents(): ternary clauses increased from 2232 to 2275
0.10/0.15	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 1
0.10/0.15	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.10/0.15	c check_ternary_clause_density :: high
0.10/0.15	c root full lookahead
0.10/0.15	c freevars: 619, independend: 619, ternary clauses: 2036 
0.10/0.15	c main():: all systems go!
0.10/0.15	c |----------------------------------------------------------------|
c |
0.10/0.15	c
0.10/0.15	c main():: nodeCount: 287
0.10/0.15	c main():: dead ends in main: 1
0.10/0.15	c main():: lookAheadCount: 38257
0.10/0.15	c main():: unitResolveCount: 4496
0.10/0.15	c main():: time=0.140000
0.10/0.15	c main():: necessary_assignments: 191
0.10/0.15	c main():: bin_sat: 0, bin_unsat 0
0.10/0.15	c main():: doublelook: #: 343, succes #: 304
0.10/0.15	c main():: doublelook: succesrate: 88.630, threshold: 0.161 * nrofvars
0.10/0.15	c main():: SOLUTION VERIFIED :-)
0.10/0.15	s SATISFIABLE
0.10/0.15	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
0.10/0.15	c SATZILLA_TIME=0.140000

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/node41/watcher-310604-1172560358 -o ROOT/results/node41/solver-310604-1172560358 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310604-1172560358/SATzilla2007_R /tmp/evaluation/310604-1172560358/instance-310604-1172560358.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: 0.62 0.93 0.97 3/64 17535
/proc/meminfo: memFree=1809584/2055920 swapFree=4172320/4192956
[pid=17535] ppid=17533 vsize=1440 CPUtime=0
/proc/17535/stat : 17535 (SATzilla2007_R) S 17533 17535 16394 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 275991923 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/17535/statm: 360 110 95 260 0 84 0
[pid=17536] ppid=17535 vsize=768 CPUtime=0
/proc/17536/stat : 17536 (march_dl) R 17535 17535 16394 0 -1 4194304 103 0 0 0 0 0 0 0 20 0 1 0 275991923 786432 97 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134652876 0 0 8392704 0 0 0 0 17 1 0 0
/proc/17536/statm: 192 98 52 118 0 71 0

[startup+0.107709 s]
/proc/loadavg: 0.62 0.93 0.97 3/64 17535
/proc/meminfo: memFree=1809584/2055920 swapFree=4172320/4192956
[pid=17535] ppid=17533 vsize=1440 CPUtime=0
/proc/17535/stat : 17535 (SATzilla2007_R) S 17533 17535 16394 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 275991923 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/17535/statm: 360 110 95 260 0 84 0
[pid=17536] ppid=17535 vsize=1392 CPUtime=0.1
/proc/17536/stat : 17536 (march_dl) R 17535 17535 16394 0 -1 4194304 285 0 0 0 10 0 0 0 20 0 1 0 275991923 1425408 277 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134532986 0 0 8392704 0 0 0 0 17 1 0 0
/proc/17536/statm: 348 277 74 118 0 227 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2832

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

[startup+0.107709 s]
/proc/loadavg: 0.62 0.93 0.97 3/64 17535
/proc/meminfo: memFree=1809584/2055920 swapFree=4172320/4192956
[pid=17535] ppid=17533 vsize=1440 CPUtime=0
/proc/17535/stat : 17535 (SATzilla2007_R) S 17533 17535 16394 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 275991923 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/17535/statm: 360 110 95 260 0 84 0
[pid=17536] ppid=17535 vsize=1392 CPUtime=0.1
/proc/17536/stat : 17536 (march_dl) R 17535 17535 16394 0 -1 4194304 285 0 0 0 10 0 0 0 20 0 1 0 275991923 1425408 277 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134532986 0 0 8392704 0 0 0 0 17 1 0 0
/proc/17536/statm: 348 277 74 118 0 227 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2832

Child status: 10
Real time (s): 0.151941
CPU time (s): 0.148976
CPU user time (s): 0.146977
CPU system time (s): 0.001999
CPU usage (%): 98.0486
Max. virtual memory (cumulated for all children) (KiB): 2832

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.146977
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= 450
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= 13
involuntary context switches= 2

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node41 on Tue Feb 27 07:12:39 UTC 2007

IDJOB= 310604
IDBENCH= 20291
IDSOLVER= 134
FILE ID= node41/310604-1172560358

PBS_JOBID= 3971884

Free space on /tmp= 66552 MiB

SOLVER NAME= SATzilla RANDOM
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/310604-1172560358/SATzilla2007_R /tmp/evaluation/310604-1172560358/instance-310604-1172560358.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-310604-1172560358 -o ROOT/results/node41/solver-310604-1172560358 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310604-1172560358/SATzilla2007_R /tmp/evaluation/310604-1172560358/instance-310604-1172560358.cnf            

META MD5SUM SOLVER= 44dcaa7dbf032757655ae5e30ee65a10
MD5SUM BENCH=  8dd20c2b2815f1615e92da9f7d25dd5d

RANDOM SEED= 926992265

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node41.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		: 3000.231
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		: 3000.231
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:       1810184 kB
Buffers:         31384 kB
Cached:         153032 kB
SwapCached:      14892 kB
Active:         111376 kB
Inactive:        94784 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1810184 kB
SwapTotal:     4192956 kB
SwapFree:      4172320 kB
Dirty:            8484 kB
Writeback:           0 kB
Mapped:          15728 kB
Slab:            25616 kB
Committed_AS:   553740 kB
PageTables:       1476 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= 66552 MiB

End job on node41 on Tue Feb 27 07:12:41 UTC 2007