Trace number 1518194

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
march_nn nnSAT 6.92395 6.92602

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S621134782-041.cnf
MD5SUM09a6dc57cba44ea6f55eca37108c958d
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 variables520
Number of clauses2210
Sum of the clauses size6630
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32210
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.01/0.02	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.01/0.02	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.01/0.02	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.01/0.02	c main()::
0.01/0.02	c initFormula():: searching for DIMACS p-line....
0.01/0.02	c initFormula():: the DIMACS p-line indicates a CNF of 520 variables and 2210 clauses.
0.01/0.02	c parseCNF():: parsing....
0.01/0.02	c parseCNF():: the CNF contains 0 unary clauses.
0.01/0.02	c runParser():: parsing was successful, warming up engines...
0.01/0.02	c simplify_formula():: removed 0 tautological, 13 satisfied and 0 duplicate clauses
0.01/0.02	c preprocessing fase I completed:: there are now 518 free variables and 2197 clauses.
0.01/0.02	c stat :: sign balance is biased by 0.480
0.01/0.02	c using 3-SAT heuristics (occurence based diff)
0.01/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.01/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 171 duplicate clauses
0.01/0.02	c resolvent_look() :: found 90 resolvents
0.01/0.02	c lessRedundantTransformation():: nothing to be done.
0.01/0.02	c transformTo3SAT():: you gave me 520 variables and 2287 clauses.
0.01/0.02	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.01/0.02	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.01/0.02	c transformTo3SAT():: the transformation yielded 520 variabels and 2287 clauses.
0.01/0.02	c main():: clause / variable ratio: ( 2287 / 520 ) = 4.40
0.01/0.02	c longest clause has size 3
0.01/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.01/0.02	c number of free variables = 518
0.01/0.02	c dynamic_preselect_setsize :: off
0.01/0.02	c main():: all systems go!
0.01/0.02	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/999) NodeCount: 43
0.01/0.03	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 1/999) NodeCount: 740
0.19/0.22	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 |***************************************************************
c |****************************************************************| ( 2/999) NodeCount: 7528
2.39/2.45	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 |************************************************
c |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
6.89/6.92	c |001000000001000100000000000000000000000000000000000000000000000|
6.89/6.92	
c |*******************************************************
6.89/6.92	c
6.89/6.92	c main():: nodeCount: 20949
6.89/6.92	c main():: dead ends in main: 103
6.89/6.92	c main():: lookAheadCount: 1449803
6.89/6.92	c main():: unitResolveCount: 131317
6.89/6.92	c main():: time=6.910000
6.89/6.92	c main():: necessary_assignments: 2437
6.89/6.92	c main():: bin_sat: 0, bin_unsat 0
6.89/6.92	c main():: doublelook: #: 41851, succes #: 15737
6.89/6.92	c main():: doublelook: overall 2.914 of all possible doublelooks executed
6.89/6.92	c main():: doublelook: succesrate: 37.602, average DL_trigger: 47.875
6.89/6.92	c main():: SOLUTION VERIFIED :-)
6.89/6.92	s SATISFIABLE
6.89/6.92	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 39 40 41 42 -43 44 45 -46 -47 48 49 50 -51 52 -54 -55 56 57 -58 -59 60 61 -62 -63 64 -66 -67 -68 -70 -71 -72 -73 -74 75 -76 -77 78 79 -80 81 82 83 -84 -85 86 87 -88 -89 90 -91 92 93 -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 -138 139 142 143 -144 -145 146 148 -149 -150 -151 152 -154 -155 156 157 158 159 160 -161 162 -163 164 165 166 167 -168 -169 170 171 173 -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 -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 -267 268 269 -270 271 272 273 -274 -275 -276 -277 279 280 281 -282 -283 284 -285 -286 287 -288 289 -291 -292 293 -294 296 297 -298 -299 -300 301 -302 -303 304 -305 -306 307 308 -309 310 -311 -312 314 -315 -316 -317 318 -319 -320 322 323 324 -325 326 -327 -328 329 330 331 -332 -333 334 -335 336 -337 338 -339 -340 341 342 -343 -344 -345 346 347 348 -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 -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 -415 417 418 419 420 421 -422 -423 -424 425 426 -427 -428 -429 -430 431 432 433 434 435 -436 -437 -438 439 440 441 443 -444 -445 -446 447 448 449 450 453 454 -455 -456 457 458 459 -460 461 -462 463 464 -465 -467 468 -469 470 471 472 -473 474 475 477 478 479 480 -481 -482 483 -484 -485 -486 -487 -488 489 490 -491 -492 -493 494 495 -497 498 -499 -500 -501 -502 503 504 -505 506 -507 -508 509 -510 -511 512 513 -514 516 517 518 -519 520 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1518194-1238296541/watcher-1518194-1238296541 -o /tmp/evaluation-result-1518194-1238296541/solver-1518194-1238296541 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1518194-1238296541.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: 0.99 0.98 0.99 3/69 19735
/proc/meminfo: memFree=1017944/2055920 swapFree=4171840/4192956
[pid=19735] ppid=19733 vsize=984 CPUtime=0
/proc/19735/stat : 19735 (march_nn) R 19733 19735 14533 0 -1 4194304 148 0 0 0 0 0 0 0 18 0 1 0 1102315816 1007616 131 1992294400 134512640 135197250 4294956240 18446744073709551615 134565228 0 0 4096 0 0 0 0 17 0 0 0
/proc/19735/statm: 246 131 66 167 0 77 0

[startup+0.0130631 s]
/proc/loadavg: 0.99 0.98 0.99 3/69 19735
/proc/meminfo: memFree=1017944/2055920 swapFree=4171840/4192956
[pid=19735] ppid=19733 vsize=1116 CPUtime=0.01
/proc/19735/stat : 19735 (march_nn) R 19733 19735 14533 0 -1 4194304 167 0 0 0 1 0 0 0 18 0 1 0 1102315816 1142784 150 1992294400 134512640 135197250 4294956240 18446744073709551615 134695120 0 0 4096 0 0 0 0 17 0 0 0
/proc/19735/statm: 279 150 82 167 0 110 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1116

[startup+0.101071 s]
/proc/loadavg: 0.99 0.98 0.99 3/69 19735
/proc/meminfo: memFree=1017944/2055920 swapFree=4171840/4192956
[pid=19735] ppid=19733 vsize=1900 CPUtime=0.09
/proc/19735/stat : 19735 (march_nn) R 19733 19735 14533 0 -1 4194304 313 0 0 0 9 0 0 0 18 0 1 0 1102315816 1945600 296 1992294400 134512640 135197250 4294956240 18446744073709551615 134542255 0 0 4096 0 0 0 0 17 0 0 0
/proc/19735/statm: 475 296 93 167 0 306 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1900

[startup+0.301087 s]
/proc/loadavg: 0.99 0.98 0.99 3/69 19735
/proc/meminfo: memFree=1017944/2055920 swapFree=4171840/4192956
[pid=19735] ppid=19733 vsize=1900 CPUtime=0.29
/proc/19735/stat : 19735 (march_nn) R 19733 19735 14533 0 -1 4194304 327 0 0 0 29 0 0 0 19 0 1 0 1102315816 1945600 310 1992294400 134512640 135197250 4294956240 18446744073709551615 134542050 0 0 4096 0 0 0 0 17 0 0 0
/proc/19735/statm: 475 310 93 167 0 306 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1900

[startup+0.701123 s]
/proc/loadavg: 0.99 0.98 0.99 3/69 19735
/proc/meminfo: memFree=1017944/2055920 swapFree=4171840/4192956
[pid=19735] ppid=19733 vsize=2052 CPUtime=0.69
/proc/19735/stat : 19735 (march_nn) R 19733 19735 14533 0 -1 4194304 352 0 0 0 69 0 0 0 23 0 1 0 1102315816 2101248 335 1992294400 134512640 135197250 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 0 0 0
/proc/19735/statm: 513 335 93 167 0 344 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2052

[startup+1.50119 s]
/proc/loadavg: 0.99 0.98 0.99 2/70 19736
/proc/meminfo: memFree=1016912/2055920 swapFree=4171840/4192956
[pid=19735] ppid=19733 vsize=2188 CPUtime=1.49
/proc/19735/stat : 19735 (march_nn) R 19733 19735 14533 0 -1 4194304 395 0 0 0 149 0 0 0 25 0 1 0 1102315816 2240512 378 1992294400 134512640 135197250 4294956240 18446744073709551615 134539253 0 0 4096 0 0 0 0 17 0 0 0
/proc/19735/statm: 547 378 93 167 0 378 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2188

[startup+3.10133 s]
/proc/loadavg: 0.99 0.98 0.99 2/70 19736
/proc/meminfo: memFree=1016528/2055920 swapFree=4171840/4192956
[pid=19735] ppid=19733 vsize=2356 CPUtime=3.09
/proc/19735/stat : 19735 (march_nn) R 19733 19735 14533 0 -1 4194304 430 0 0 0 309 0 0 0 25 0 1 0 1102315816 2412544 413 1992294400 134512640 135197250 4294956240 18446744073709551615 134611660 0 0 4096 0 0 0 0 17 0 0 0
/proc/19735/statm: 589 413 93 167 0 420 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2356

[startup+6.30261 s]
/proc/loadavg: 0.99 0.98 0.99 2/70 19736
/proc/meminfo: memFree=1016272/2055920 swapFree=4171840/4192956
[pid=19735] ppid=19733 vsize=2648 CPUtime=6.29
/proc/19735/stat : 19735 (march_nn) R 19733 19735 14533 0 -1 4194304 496 0 0 0 629 0 0 0 25 0 1 0 1102315816 2711552 479 1992294400 134512640 135197250 4294956240 18446744073709551615 134603846 0 0 4096 0 0 0 0 17 0 0 0
/proc/19735/statm: 662 479 93 167 0 493 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2648

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

[startup+6.70165 s]
/proc/loadavg: 0.99 0.98 0.99 2/70 19736
/proc/meminfo: memFree=1016144/2055920 swapFree=4171840/4192956
[pid=19735] ppid=19733 vsize=2876 CPUtime=6.69
/proc/19735/stat : 19735 (march_nn) R 19733 19735 14533 0 -1 4194304 505 0 0 0 669 0 0 0 25 0 1 0 1102315816 2945024 488 1992294400 134512640 135197250 4294956240 18446744073709551615 134618109 0 0 4096 0 0 0 0 17 0 0 0
/proc/19735/statm: 719 488 93 167 0 550 0
Current children cumulated CPU time (s) 6.69
Current children cumulated vsize (KiB) 2876

[startup+6.90167 s]
/proc/loadavg: 0.99 0.98 0.99 2/70 19736
/proc/meminfo: memFree=1016144/2055920 swapFree=4171840/4192956
[pid=19735] ppid=19733 vsize=2876 CPUtime=6.89
/proc/19735/stat : 19735 (march_nn) R 19733 19735 14533 0 -1 4194304 510 0 0 0 689 0 0 0 25 0 1 0 1102315816 2945024 493 1992294400 134512640 135197250 4294956240 18446744073709551615 134541914 0 0 4096 0 0 0 0 17 0 0 0
/proc/19735/statm: 719 493 93 167 0 550 0
Current children cumulated CPU time (s) 6.89
Current children cumulated vsize (KiB) 2876

Child status: 10
Real time (s): 6.92602
CPU time (s): 6.92395
CPU user time (s): 6.91795
CPU system time (s): 0.005999
CPU usage (%): 99.97
Max. virtual memory (cumulated for all children) (KiB): 2876

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.91795
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 541
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= 15

runsolver used 0.015997 second user time and 0.021996 second system time

The end

Launcher Data 

Begin job on node58 at 2009-03-29 05:15:41
IDJOB=1518194
IDBENCH=70659
IDSOLVER=522
FILE ID=node58/1518194-1238296541
PBS_JOBID= 9060953
Free space on /tmp= 66400 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S621134782-041.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1518194-1238296541/watcher-1518194-1238296541 -o /tmp/evaluation-result-1518194-1238296541/solver-1518194-1238296541 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1518194-1238296541.cnf

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

MD5SUM BENCH= 09a6dc57cba44ea6f55eca37108c958d
RANDOM SEED=1863564482

node58.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		: 3000.222
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		: 3000.222
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:       1018360 kB
Buffers:         89456 kB
Cached:         855620 kB
SwapCached:      11412 kB
Active:         274620 kB
Inactive:       683408 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1018360 kB
SwapTotal:     4192956 kB
SwapFree:      4171840 kB
Dirty:             960 kB
Writeback:           0 kB
Mapped:          17436 kB
Slab:            64984 kB
Committed_AS:  2524080 kB
PageTables:       1764 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= 66400 MiB
End job on node58 at 2009-03-29 05:15:48