Trace number 310499

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
March KS 2007-02-08SAT 4.40333 4.40659

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)

0.00/0.02	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.02	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.00/0.02	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.00/0.02	c main()::
0.00/0.02	c initFormula():: searching for DIMACS p-line....
0.00/0.02	c initFormula():: the DIMACS p-line indicates a CNF of 630 variables and 2280 clauses.
0.00/0.02	c parseCNF():: parsing....
0.00/0.02	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.02	c runParser():: parsing was successful, warming up engines...
0.00/0.02	c simplify_formula():: removed 0 tautological, 21 satisfied and 0 duplicate clauses
0.00/0.02	c preprocessing fase I completed:: there are now 625 free variables and 2259 clauses.
0.00/0.02	c stat :: sign balance is biased by 0.539
0.00/0.02	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.00/0.02	c using 3-SAT heuristics (occurence based diff)
0.00/0.02	c longest clause has size 3
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 106 duplicate clauses
0.00/0.02	c resolvent_look() :: found 47 resolvents
0.00/0.02	c lessRedundantTransformation():: nothing to be done.
0.00/0.02	c transformTo3SAT():: you gave me 630 variables and 2306 clauses.
0.00/0.02	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.02	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.02	c transformTo3SAT():: the transformation yielded 630 variabels and 2306 clauses.
0.00/0.02	c main():: clause / variable ratio: ( 2306 / 630 ) = 3.66
0.00/0.02	c longest clause has size 3
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c dynamic_preselect_setsize :: off
0.00/0.02	c suggested doublelook initial :: 0
0.00/0.02	c main():: all systems go!
0.00/0.02	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 147 JD: 13
0.10/0.15	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 1 NC: 2309 JD: 13
2.25/2.27	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |*****************************************
c |******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
4.30/4.40	c solution bin :: 0000100100000.0100100000000000000
4.30/4.40	c direction branchin :: current_rights = 4
4.30/4.40	
c |*************************************************************
4.30/4.40	c
4.30/4.40	c main():: nodeCount: 4556
4.30/4.40	c main():: dead ends in main: 42
4.30/4.40	c main():: lookAheadCount: 552141
4.30/4.40	c main():: unitResolveCount: 79097
4.30/4.40	c main():: time=4.400000
4.30/4.40	c main():: necessary_assignments: 2168
4.30/4.40	c main():: bin_sat: 0, bin_unsat 0
4.30/4.40	c main():: doublelook: #: 24062, succes #: 18307
4.30/4.40	c main():: doublelook: overall 4.482 of all possible doublelooks executed
4.30/4.40	c main():: doublelook: succesrate: 76.083, average DL_trigger: 7809.640
4.30/4.40	c main():: SOLUTION VERIFIED :-)
4.30/4.40	s SATISFIABLE
4.30/4.40	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 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node38/watcher-310499-1172560144 -o ROOT/results/node38/solver-310499-1172560144 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310499-1172560144/march_ks /tmp/evaluation/310499-1172560144/instance-310499-1172560144.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 0.99 1.09 3/64 28823
/proc/meminfo: memFree=1874840/2055920 swapFree=4183692/4192956
[pid=28823] ppid=28821 vsize=928 CPUtime=0
/proc/28823/stat : 28823 (march_ks) R 28821 28823 28181 0 -1 4194304 137 0 0 0 0 0 0 0 18 0 1 0 275970267 950272 119 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134687937 0 0 4096 0 0 0 0 17 1 0 0
/proc/28823/statm: 232 119 49 123 0 107 0

[startup+0.107669 s]
/proc/loadavg: 0.92 0.99 1.09 3/64 28823
/proc/meminfo: memFree=1874840/2055920 swapFree=4183692/4192956
[pid=28823] ppid=28821 vsize=1516 CPUtime=0.1
/proc/28823/stat : 28823 (march_ks) R 28821 28823 28181 0 -1 4194304 301 0 0 0 10 0 0 0 18 0 1 0 275970267 1552384 283 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134526435 0 0 4096 0 0 0 0 17 1 0 0
/proc/28823/statm: 379 283 73 123 0 254 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1516

[startup+0.517715 s]
/proc/loadavg: 0.92 0.99 1.09 3/64 28823
/proc/meminfo: memFree=1874840/2055920 swapFree=4183692/4192956
[pid=28823] ppid=28821 vsize=1516 CPUtime=0.51
/proc/28823/stat : 28823 (march_ks) R 28821 28823 28181 0 -1 4194304 325 0 0 0 51 0 0 0 21 0 1 0 275970267 1552384 307 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134538176 0 0 4096 0 0 0 0 17 1 0 0
/proc/28823/statm: 379 307 73 123 0 254 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1516

[startup+1.33781 s]
/proc/loadavg: 0.92 0.99 1.09 2/65 28824
/proc/meminfo: memFree=1873872/2055920 swapFree=4183692/4192956
[pid=28823] ppid=28821 vsize=1648 CPUtime=1.33
/proc/28823/stat : 28823 (march_ks) R 28821 28823 28181 0 -1 4194304 341 0 0 0 133 0 0 0 25 0 1 0 275970267 1687552 323 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134538142 0 0 4096 0 0 0 0 17 1 0 0
/proc/28823/statm: 412 323 73 123 0 287 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 1648

[startup+2.974 s]
/proc/loadavg: 0.93 0.99 1.09 2/65 28824
/proc/meminfo: memFree=1873680/2055920 swapFree=4183692/4192956
[pid=28823] ppid=28821 vsize=1648 CPUtime=2.97
/proc/28823/stat : 28823 (march_ks) R 28821 28823 28181 0 -1 4194304 350 0 0 0 297 0 0 0 25 0 1 0 275970267 1687552 332 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134538157 0 0 4096 0 0 0 0 17 1 0 0
/proc/28823/statm: 412 332 73 123 0 287 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 1648

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

[startup+3.28003 s]
/proc/loadavg: 0.93 0.99 1.09 2/65 28824
/proc/meminfo: memFree=1873680/2055920 swapFree=4183692/4192956
[pid=28823] ppid=28821 vsize=1648 CPUtime=3.27
/proc/28823/stat : 28823 (march_ks) R 28821 28823 28181 0 -1 4194304 354 0 0 0 327 0 0 0 25 0 1 0 275970267 1687552 336 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134564838 0 0 4096 0 0 0 0 17 1 0 0
/proc/28823/statm: 412 336 73 123 0 287 0
Current children cumulated CPU time (s) 3.27
Current children cumulated vsize (KiB) 1648

[startup+4.10012 s]
/proc/loadavg: 0.93 0.99 1.09 2/65 28824
/proc/meminfo: memFree=1873616/2055920 swapFree=4183692/4192956
[pid=28823] ppid=28821 vsize=1648 CPUtime=4.09
/proc/28823/stat : 28823 (march_ks) R 28821 28823 28181 0 -1 4194304 356 0 0 0 409 0 0 0 25 0 1 0 275970267 1687552 338 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134548062 0 0 4096 0 0 0 0 17 1 0 0
/proc/28823/statm: 412 338 73 123 0 287 0
Current children cumulated CPU time (s) 4.09
Current children cumulated vsize (KiB) 1648

[startup+4.30415 s]
/proc/loadavg: 0.93 0.99 1.09 2/65 28824
/proc/meminfo: memFree=1873616/2055920 swapFree=4183692/4192956
[pid=28823] ppid=28821 vsize=1648 CPUtime=4.3
/proc/28823/stat : 28823 (march_ks) R 28821 28823 28181 0 -1 4194304 357 0 0 0 430 0 0 0 25 0 1 0 275970267 1687552 339 18446744073709551615 134512640 135019032 4294956704 18446744073709551615 134526436 0 0 4096 0 0 0 0 17 1 0 0
/proc/28823/statm: 412 339 73 123 0 287 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 1648

[startup+4.40616 s]
/proc/loadavg: 0.93 0.99 1.09 2/65 28824
/proc/meminfo: memFree=1873616/2055920 swapFree=4183692/4192956
[pid=28823] ppid=28821 vsize=0 CPUtime=4.4
/proc/28823/stat : 28823 (march_ks) D 28821 28823 28181 0 -1 4194308 360 0 0 0 440 0 0 0 15 0 1 0 275970267 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 18446744072100051646 0 0 17 0 0 0
/proc/28823/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 4.4
Current children cumulated vsize (KiB) 0

Child status: 10
Real time (s): 4.40659
CPU time (s): 4.40333
CPU user time (s): 4.40333
CPU system time (s): 0
CPU usage (%): 99.926
Max. virtual memory (cumulated for all children) (KiB): 1648

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.40333
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 360
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= 7

runsolver used 0.006998 second user time and 0.017997 second system time

The end

Launcher Data (download as text)

Begin job on node38 on Tue Feb 27 07:09:04 UTC 2007

IDJOB= 310499
IDBENCH= 20289
IDSOLVER= 111
FILE ID= node38/310499-1172560144

PBS_JOBID= 3971865

Free space on /tmp= 66558 MiB

SOLVER NAME= March KS 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/310499-1172560144/march_ks /tmp/evaluation/310499-1172560144/instance-310499-1172560144.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node38/watcher-310499-1172560144 -o ROOT/results/node38/solver-310499-1172560144 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310499-1172560144/march_ks /tmp/evaluation/310499-1172560144/instance-310499-1172560144.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  23ea53255de4a3778ef34ac8baaa8ebc

RANDOM SEED= 32863612

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:       1875312 kB
Buffers:         22036 kB
Cached:         111584 kB
SwapCached:       3468 kB
Active:          73140 kB
Inactive:        70252 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1875312 kB
SwapTotal:     4192956 kB
SwapFree:      4183692 kB
Dirty:            2288 kB
Writeback:           0 kB
Mapped:          15292 kB
Slab:            23236 kB
Committed_AS:   571444 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= 66558 MiB

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