Trace number 310688

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 FULLSAT 2.67359 2.68062

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1804595013-08-SAT.cnf
MD5SUM349353060fd2d6c47e7784aed8d6092f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.052991
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)

2.65/2.67	c run March_dl for 5 seconds ... 
2.65/2.67	c Bin: Executing march_dl
2.65/2.67	c child exited successfully
2.65/2.67	c march_dl returned code 10.
2.65/2.67	c main():: ***                                   [ march satisfiability solver ]                                   ***
2.65/2.67	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
2.65/2.67	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
2.65/2.67	c main()::
2.65/2.67	c initFormula():: searching for DIMACS p-line....
2.65/2.67	c initFormula():: the DIMACS p-line indicates a CNF of 630 variables and 2280 clauses.
2.65/2.67	c parseCNF():: parsing....
2.65/2.67	c parseCNF():: the CNF contains 0 unary clauses.
2.65/2.67	c runParser():: parsing was successful, warming up engines...
2.65/2.67	c simplify_formula():: removed 0 tautological, 33 satisfied and 0 duplicate clauses
2.65/2.67	c preprocessing fase I completed:: there are now 622 free variables and 2247 clauses.
2.65/2.67	c shorten_equivalence(): average equivalence length reduced from nan to nan
2.65/2.67	c doublelook_init():: 90% succes rate goal.
2.65/2.67	c root_subsume():: 6 ternary clauses were subsumed, nrofceq = 4
2.65/2.67	c find_and_remove_tautogolies():: found and removed 4 tautologies
2.65/2.67	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 4
2.65/2.67	c lessRedundantTransformation():: nothing to be done.
2.65/2.67	c transformTo3SAT():: you gave me 630 variables and 2244 clauses.
2.65/2.67	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
2.65/2.67	c transformTo3SAT():: CHAINPLUS defined.
2.65/2.67	c transformTo3SAT():: I will add 0 variables and 0 clauses!
2.65/2.67	c transformTo3SAT():: the transformation yielded 630 variabels and 2244 clauses.
2.65/2.67	c main():: clause / variable ratio: ( 2244 / 630 ) = 3.56
2.65/2.67	c doublelook_init():: 90% succes rate goal.
2.65/2.67	c AddTernaryResolvents(): ternary clauses increased from 2244 to 2285
2.65/2.67	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 4
2.65/2.67	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
2.65/2.67	c check_ternary_clause_density :: high
2.65/2.67	c root full lookahead
2.65/2.67	c freevars: 618, independend: 618, ternary clauses: 2060 
2.65/2.67	c main():: all systems go!
2.65/2.67	c |----------------------------------------------------------------|
c |*
c |*
2.65/2.67	c
2.65/2.67	c main():: nodeCount: 5159
2.65/2.67	c main():: dead ends in main: 55
2.65/2.67	c main():: lookAheadCount: 573682
2.65/2.67	c main():: unitResolveCount: 97052
2.65/2.67	c main():: time=2.660000
2.65/2.67	c main():: necessary_assignments: 3527
2.65/2.67	c main():: bin_sat: 0, bin_unsat 0
2.65/2.67	c main():: doublelook: #: 10171, succes #: 9142
2.65/2.67	c main():: doublelook: succesrate: 89.883, threshold: 0.159 * nrofvars
2.65/2.67	c main():: SOLUTION VERIFIED :-)
2.65/2.67	s SATISFIABLE
2.65/2.67	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
2.65/2.67	c SATZILLA_TIME=2.660000

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/node24/watcher-310688-1172560977 -o ROOT/results/node24/solver-310688-1172560977 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310688-1172560977/SATzilla2007_F /tmp/evaluation/310688-1172560977/instance-310688-1172560977.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: 0.99 0.97 0.98 3/77 26039
/proc/meminfo: memFree=1806112/2055920 swapFree=4139416/4192956
[pid=26039] ppid=26037 vsize=1512 CPUtime=0
/proc/26039/stat : 26039 (SATzilla2007_F) R 26037 26039 25155 0 -1 4194304 142 0 0 0 0 0 0 0 18 0 1 0 276052015 1548288 125 18446744073709551615 134512640 135581085 4294956704 18446744073709551615 135218003 0 0 4096 0 0 0 0 17 1 0 0
/proc/26039/statm: 378 125 110 260 0 84 0
[pid=26040] ppid=26039 vsize=768 CPUtime=0
/proc/26040/stat : 26040 (march_dl) R 26039 26039 25155 0 -1 4194304 104 0 0 0 0 0 0 0 18 0 1 0 276052015 786432 97 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134542311 0 0 8392704 0 0 0 0 17 1 0 0
/proc/26040/statm: 192 98 52 118 0 71 0

[startup+0.107318 s]
/proc/loadavg: 0.99 0.97 0.98 3/77 26039
/proc/meminfo: memFree=1806112/2055920 swapFree=4139416/4192956
[pid=26039] ppid=26037 vsize=1512 CPUtime=0
/proc/26039/stat : 26039 (SATzilla2007_F) S 26037 26039 25155 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 276052015 1548288 125 18446744073709551615 134512640 135581085 4294956704 18446744073709551615 135217869 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/26039/statm: 378 125 110 260 0 84 0
[pid=26040] ppid=26039 vsize=1392 CPUtime=0.1
/proc/26040/stat : 26040 (march_dl) R 26039 26039 25155 0 -1 4194304 289 0 0 0 10 0 0 0 19 0 1 0 276052015 1425408 280 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134531609 0 0 8392704 0 0 0 0 17 1 0 0
/proc/26040/statm: 348 280 74 118 0 227 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2904

[startup+0.515361 s]
/proc/loadavg: 0.99 0.97 0.98 3/77 26039
/proc/meminfo: memFree=1806112/2055920 swapFree=4139416/4192956
[pid=26039] ppid=26037 vsize=1512 CPUtime=0
/proc/26039/stat : 26039 (SATzilla2007_F) S 26037 26039 25155 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 276052015 1548288 125 18446744073709551615 134512640 135581085 4294956704 18446744073709551615 135217869 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/26039/statm: 378 125 110 260 0 84 0
[pid=26040] ppid=26039 vsize=1392 CPUtime=0.51
/proc/26040/stat : 26040 (march_dl) R 26039 26039 25155 0 -1 4194304 306 0 0 0 51 0 0 0 24 0 1 0 276052015 1425408 297 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134514049 0 0 8392704 0 0 0 0 17 1 0 0
/proc/26040/statm: 348 297 74 118 0 227 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2904

[startup+1.33545 s]
/proc/loadavg: 0.99 0.97 0.98 2/79 26041
/proc/meminfo: memFree=1804752/2055920 swapFree=4139416/4192956
[pid=26039] ppid=26037 vsize=1512 CPUtime=0
/proc/26039/stat : 26039 (SATzilla2007_F) S 26037 26039 25155 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 276052015 1548288 125 18446744073709551615 134512640 135581085 4294956704 18446744073709551615 135217869 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/26039/statm: 378 125 110 260 0 84 0
[pid=26040] ppid=26039 vsize=1524 CPUtime=1.32
/proc/26040/stat : 26040 (march_dl) R 26039 26039 25155 0 -1 4194304 317 0 0 0 132 0 0 0 25 0 1 0 276052015 1560576 308 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134527899 0 0 8392704 0 0 0 0 17 1 0 0
/proc/26040/statm: 381 308 74 118 0 260 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 3036

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

[startup+1.64148 s]
/proc/loadavg: 0.99 0.97 0.98 2/79 26041
/proc/meminfo: memFree=1804752/2055920 swapFree=4139416/4192956
[pid=26039] ppid=26037 vsize=1512 CPUtime=0
/proc/26039/stat : 26039 (SATzilla2007_F) S 26037 26039 25155 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 276052015 1548288 125 18446744073709551615 134512640 135581085 4294956704 18446744073709551615 135217869 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/26039/statm: 378 125 110 260 0 84 0
[pid=26040] ppid=26039 vsize=1524 CPUtime=1.62
/proc/26040/stat : 26040 (march_dl) R 26039 26039 25155 0 -1 4194304 319 0 0 0 162 0 0 0 25 0 1 0 276052015 1560576 310 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134564292 0 0 8392704 0 0 0 0 17 1 0 0
/proc/26040/statm: 381 310 74 118 0 260 0
Current children cumulated CPU time (s) 1.62
Current children cumulated vsize (KiB) 3036

[startup+2.46157 s]
/proc/loadavg: 0.99 0.97 0.98 2/79 26041
/proc/meminfo: memFree=1804752/2055920 swapFree=4139416/4192956
[pid=26039] ppid=26037 vsize=1512 CPUtime=0
/proc/26039/stat : 26039 (SATzilla2007_F) S 26037 26039 25155 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 276052015 1548288 125 18446744073709551615 134512640 135581085 4294956704 18446744073709551615 135217869 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/26039/statm: 378 125 110 260 0 84 0
[pid=26040] ppid=26039 vsize=1524 CPUtime=2.44
/proc/26040/stat : 26040 (march_dl) R 26039 26039 25155 0 -1 4194304 329 0 0 0 244 0 0 0 25 0 1 0 276052015 1560576 320 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134532803 0 0 8392704 0 0 0 0 17 1 0 0
/proc/26040/statm: 381 320 74 118 0 260 0
Current children cumulated CPU time (s) 2.44
Current children cumulated vsize (KiB) 3036

[startup+2.6656 s]
/proc/loadavg: 0.99 0.97 0.98 2/79 26041
/proc/meminfo: memFree=1804752/2055920 swapFree=4139416/4192956
[pid=26039] ppid=26037 vsize=1512 CPUtime=0
/proc/26039/stat : 26039 (SATzilla2007_F) S 26037 26039 25155 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 276052015 1548288 125 18446744073709551615 134512640 135581085 4294956704 18446744073709551615 135217869 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/26039/statm: 378 125 110 260 0 84 0
[pid=26040] ppid=26039 vsize=1524 CPUtime=2.65
/proc/26040/stat : 26040 (march_dl) R 26039 26039 25155 0 -1 4194304 329 0 0 0 265 0 0 0 25 0 1 0 276052015 1560576 320 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134531910 0 0 8392704 0 0 0 0 17 1 0 0
/proc/26040/statm: 381 320 74 118 0 260 0
Current children cumulated CPU time (s) 2.65
Current children cumulated vsize (KiB) 3036

Child status: 10
Real time (s): 2.68062
CPU time (s): 2.67359
CPU user time (s): 2.66659
CPU system time (s): 0.006998
CPU usage (%): 99.7377
Max. virtual memory (cumulated for all children) (KiB): 3036

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.66659
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 503
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= 14

runsolver used 0.006998 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node24 on Tue Feb 27 07:22:57 UTC 2007

IDJOB= 310688
IDBENCH= 20293
IDSOLVER= 136
FILE ID= node24/310688-1172560977

PBS_JOBID= 3971873

Free space on /tmp= 66551 MiB

SOLVER NAME= SATzilla FULL
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1804595013-08-SAT.cnf
COMMAND LINE= /tmp/evaluation/310688-1172560977/SATzilla2007_F /tmp/evaluation/310688-1172560977/instance-310688-1172560977.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node24/watcher-310688-1172560977 -o ROOT/results/node24/solver-310688-1172560977 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310688-1172560977/SATzilla2007_F /tmp/evaluation/310688-1172560977/instance-310688-1172560977.cnf            

META MD5SUM SOLVER= cf97f3a2fd0b75b608f79c1ce3d2be4a
MD5SUM BENCH=  349353060fd2d6c47e7784aed8d6092f

RANDOM SEED= 599596455

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node24.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		: 3000.232
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		: 3000.232
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:       1806456 kB
Buffers:         29072 kB
Cached:         166548 kB
SwapCached:       8788 kB
Active:         112816 kB
Inactive:        97480 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1806456 kB
SwapTotal:     4192956 kB
SwapFree:      4139416 kB
Dirty:           10312 kB
Writeback:           0 kB
Mapped:          15564 kB
Slab:            24716 kB
Committed_AS:   782892 kB
PageTables:       1732 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= 66551 MiB

End job on node24 on Tue Feb 27 07:23:00 UTC 2007