Trace number 1544898

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
SAT07 reference solver: March KS 2007-02-08SAT 5.9151 5.91662

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/560/
unif-k3-r4.25-v560-c2380-S889538696-070.cnf
MD5SUM638869086f20650eb09f2e935bdc737c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014997
Satisfiable
(Un)Satisfiability was proved
Number of variables560
Number of clauses2380
Sum of the clauses size7140
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32380
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.01	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.00/0.01	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.00/0.01	c main()::
0.00/0.01	c initFormula():: searching for DIMACS p-line....
0.00/0.01	c initFormula():: the DIMACS p-line indicates a CNF of 560 variables and 2380 clauses.
0.00/0.01	c parseCNF():: parsing....
0.00/0.01	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.01	c runParser():: parsing was successful, warming up engines...
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 560 free variables and 2380 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.520
0.00/0.01	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.00/0.01	c using 3-SAT heuristics (occurence based diff)
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 193 duplicate clauses
0.00/0.01	c resolvent_look() :: found 109 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 560 variables and 2489 clauses.
0.00/0.01	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.01	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.01	c transformTo3SAT():: the transformation yielded 560 variabels and 2489 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 2489 / 560 ) = 4.44
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c suggested doublelook initial :: 0
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 197 JD: 33
0.09/0.14	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: 1628 JD: 33
0.89/0.95	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 |*************************************************************
c |**************************************************************
c |***************************************************************
5.89/5.91	c solution bin :: 00000010000000000100000000000000
5.89/5.91	c direction branchin :: current_rights = 2
5.89/5.91	
c |***************************************************************
5.89/5.91	c
5.89/5.91	c main():: nodeCount: 9565
5.89/5.91	c main():: dead ends in main: 105
5.89/5.91	c main():: lookAheadCount: 983158
5.89/5.91	c main():: unitResolveCount: 115568
5.89/5.91	c main():: time=5.910000
5.89/5.91	c main():: necessary_assignments: 2610
5.89/5.91	c main():: bin_sat: 0, bin_unsat 0
5.89/5.91	c main():: doublelook: #: 38716, succes #: 27262
5.89/5.91	c main():: doublelook: overall 4.026 of all possible doublelooks executed
5.89/5.91	c main():: doublelook: succesrate: 70.415, average DL_trigger: 8063.803
5.89/5.91	c main():: SOLUTION VERIFIED :-)
5.89/5.91	s SATISFIABLE
5.89/5.91	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 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1544898-1238614958/watcher-1544898-1238614958 -o /tmp/evaluation-result-1544898-1238614958/solver-1544898-1238614958 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1544898-1238614958.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): 1800 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: 1.00 1.00 0.93 3/69 22371
/proc/meminfo: memFree=1487584/2055920 swapFree=4171336/4192956
[pid=22371] ppid=22369 vsize=796 CPUtime=0
/proc/22371/stat : 22371 (march_ks) R 22369 22371 22154 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1134158935 815104 111 1992294400 134512640 135019032 4294956240 18446744073709551615 134561705 0 0 4096 0 0 0 0 17 0 0 0
/proc/22371/statm: 199 111 50 123 0 74 0

[startup+0.0102791 s]
/proc/loadavg: 1.00 1.00 0.93 3/69 22371
/proc/meminfo: memFree=1487584/2055920 swapFree=4171336/4192956
[pid=22371] ppid=22369 vsize=924 CPUtime=0
/proc/22371/stat : 22371 (march_ks) R 22369 22371 22154 0 -1 4194304 152 0 0 0 0 0 0 0 18 0 1 0 1134158935 946176 135 1992294400 134512640 135019032 4294956240 18446744073709551615 134661057 0 0 4096 0 0 0 0 17 0 0 0
/proc/22371/statm: 231 135 63 123 0 106 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 924

[startup+0.101287 s]
/proc/loadavg: 1.00 1.00 0.93 3/69 22371
/proc/meminfo: memFree=1487584/2055920 swapFree=4171336/4192956
[pid=22371] ppid=22369 vsize=1484 CPUtime=0.09
/proc/22371/stat : 22371 (march_ks) R 22369 22371 22154 0 -1 4194304 294 0 0 0 9 0 0 0 18 0 1 0 1134158935 1519616 277 1992294400 134512640 135019032 4294956240 18446744073709551615 134587824 0 0 4096 0 0 0 0 17 0 0 0
/proc/22371/statm: 371 277 73 123 0 246 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1484

[startup+0.301307 s]
/proc/loadavg: 1.00 1.00 0.93 3/69 22371
/proc/meminfo: memFree=1487584/2055920 swapFree=4171336/4192956
[pid=22371] ppid=22369 vsize=1484 CPUtime=0.29
/proc/22371/stat : 22371 (march_ks) R 22369 22371 22154 0 -1 4194304 310 0 0 0 29 0 0 0 20 0 1 0 1134158935 1519616 293 1992294400 134512640 135019032 4294956240 18446744073709551615 134526436 0 0 4096 0 0 0 0 17 0 0 0
/proc/22371/statm: 371 293 73 123 0 246 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1484

[startup+0.701347 s]
/proc/loadavg: 1.00 1.00 0.93 3/69 22371
/proc/meminfo: memFree=1487584/2055920 swapFree=4171336/4192956
[pid=22371] ppid=22369 vsize=1484 CPUtime=0.69
/proc/22371/stat : 22371 (march_ks) R 22369 22371 22154 0 -1 4194304 323 0 0 0 69 0 0 0 24 0 1 0 1134158935 1519616 306 1992294400 134512640 135019032 4294956240 18446744073709551615 134538152 0 0 4096 0 0 0 0 17 0 0 0
/proc/22371/statm: 371 306 73 123 0 246 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1484

[startup+1.50143 s]
/proc/loadavg: 1.00 1.00 0.93 2/70 22372
/proc/meminfo: memFree=1486616/2055920 swapFree=4171336/4192956
[pid=22371] ppid=22369 vsize=1616 CPUtime=1.49
/proc/22371/stat : 22371 (march_ks) R 22369 22371 22154 0 -1 4194304 337 0 0 0 149 0 0 0 25 0 1 0 1134158935 1654784 320 1992294400 134512640 135019032 4294956240 18446744073709551615 134565537 0 0 4096 0 0 0 0 17 0 0 0
/proc/22371/statm: 404 320 73 123 0 279 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1616

[startup+3.10159 s]
/proc/loadavg: 1.00 1.00 0.93 2/70 22372
/proc/meminfo: memFree=1486288/2055920 swapFree=4171336/4192956
[pid=22371] ppid=22369 vsize=1616 CPUtime=3.09
/proc/22371/stat : 22371 (march_ks) R 22369 22371 22154 0 -1 4194304 352 0 0 0 309 0 0 0 25 0 1 0 1134158935 1654784 335 1992294400 134512640 135019032 4294956240 18446744073709551615 134526476 0 0 4096 0 0 0 0 17 0 0 0
/proc/22371/statm: 404 335 73 123 0 279 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1616

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

[startup+4.70176 s]
/proc/loadavg: 1.00 1.00 0.93 2/70 22372
/proc/meminfo: memFree=1486160/2055920 swapFree=4171336/4192956
[pid=22371] ppid=22369 vsize=1836 CPUtime=4.69
/proc/22371/stat : 22371 (march_ks) R 22369 22371 22154 0 -1 4194304 373 0 0 0 469 0 0 0 25 0 1 0 1134158935 1880064 356 1992294400 134512640 135019032 4294956240 18446744073709551615 134597192 0 0 4096 0 0 0 0 17 0 0 0
/proc/22371/statm: 459 356 73 123 0 334 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 1836

[startup+5.50684 s]
/proc/loadavg: 1.08 1.02 0.94 2/70 22372
/proc/meminfo: memFree=1486160/2055920 swapFree=4171336/4192956
[pid=22371] ppid=22369 vsize=1836 CPUtime=5.5
/proc/22371/stat : 22371 (march_ks) R 22369 22371 22154 0 -1 4194304 375 0 0 0 550 0 0 0 25 0 1 0 1134158935 1880064 358 1992294400 134512640 135019032 4294956240 18446744073709551615 134542609 0 0 4096 0 0 0 0 17 0 0 0
/proc/22371/statm: 459 358 73 123 0 334 0
Current children cumulated CPU time (s) 5.5
Current children cumulated vsize (KiB) 1836

[startup+5.90188 s]
/proc/loadavg: 1.08 1.02 0.94 2/70 22372
/proc/meminfo: memFree=1486160/2055920 swapFree=4171336/4192956
[pid=22371] ppid=22369 vsize=1836 CPUtime=5.89
/proc/22371/stat : 22371 (march_ks) R 22369 22371 22154 0 -1 4194304 378 0 0 0 589 0 0 0 25 0 1 0 1134158935 1880064 361 1992294400 134512640 135019032 4294956240 18446744073709551615 134525731 0 0 4096 0 0 0 0 17 0 0 0
/proc/22371/statm: 459 361 73 123 0 334 0
Current children cumulated CPU time (s) 5.89
Current children cumulated vsize (KiB) 1836

Child status: 10
Real time (s): 5.91662
CPU time (s): 5.9151
CPU user time (s): 5.9121
CPU system time (s): 0.002999
CPU usage (%): 99.9744
Max. virtual memory (cumulated for all children) (KiB): 1836

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.9121
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= 379
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= 2
involuntary context switches= 25

runsolver used 0.008998 second user time and 0.021996 second system time

The end

Launcher Data 

Begin job on node44 at 2009-04-01 21:42:38
IDJOB=1544898
IDBENCH=70676
IDSOLVER=559
FILE ID=node44/1544898-1238614958
PBS_JOBID= 9073599
Free space on /tmp= 66400 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/560/unif-k3-r4.25-v560-c2380-S889538696-070.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1544898-1238614958/watcher-1544898-1238614958 -o /tmp/evaluation-result-1544898-1238614958/solver-1544898-1238614958 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1544898-1238614958.cnf            

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 638869086f20650eb09f2e935bdc737c
RANDOM SEED=859527098

node44.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.241
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		: 3000.241
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:       1488128 kB
Buffers:         96008 kB
Cached:         364844 kB
SwapCached:      11068 kB
Active:         227548 kB
Inactive:       245888 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1488128 kB
SwapTotal:     4192956 kB
SwapFree:      4171336 kB
Dirty:            2908 kB
Writeback:           0 kB
Mapped:          18220 kB
Slab:            79864 kB
Committed_AS:  2832824 kB
PageTables:       1796 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= 66396 MiB
End job on node44 at 2009-04-01 21:42:44