Trace number 1518446

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 7.54685 7.54863

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/560/
unif-k3-r4.25-v560-c2380-S1876865608-086.cnf
MD5SUMa08fcca560a80877927507a2ea133f40
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.016996
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 

0.00/0.02	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.02	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
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 560 variables and 2380 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, 28 satisfied and 0 duplicate clauses
0.00/0.02	c preprocessing fase I completed:: there are now 556 free variables and 2352 clauses.
0.00/0.02	c stat :: sign balance is biased by 0.517
0.00/0.02	c using 3-SAT heuristics (occurence based diff)
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 175 duplicate clauses
0.00/0.02	c resolvent_look() :: found 86 resolvents
0.00/0.02	c lessRedundantTransformation():: nothing to be done.
0.00/0.02	c transformTo3SAT():: you gave me 560 variables and 2438 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 560 variabels and 2438 clauses.
0.00/0.02	c main():: clause / variable ratio: ( 2438 / 560 ) = 4.35
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 number of free variables = 556
0.00/0.02	c dynamic_preselect_setsize :: off
0.00/0.02	c main():: all systems go!
0.00/0.02	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/999) NodeCount: 37
0.00/0.03	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: 735
0.20/0.23	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: 8519
2.80/2.83	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 |*******************************************************
7.49/7.54	c |001000010000000000000000000000001000000000000000000000000000000|
7.49/7.54	
c |*******************************************************
7.49/7.54	c
7.49/7.54	c main():: nodeCount: 22337
7.49/7.54	c main():: dead ends in main: 90
7.49/7.54	c main():: lookAheadCount: 1532660
7.49/7.54	c main():: unitResolveCount: 139012
7.49/7.54	c main():: time=7.540000
7.49/7.54	c main():: necessary_assignments: 2505
7.49/7.54	c main():: bin_sat: 0, bin_unsat 0
7.49/7.54	c main():: doublelook: #: 43494, succes #: 15577
7.49/7.54	c main():: doublelook: overall 2.863 of all possible doublelooks executed
7.49/7.54	c main():: doublelook: succesrate: 35.814, average DL_trigger: 49.439
7.49/7.54	c main():: SOLUTION VERIFIED :-)
7.49/7.54	s SATISFIABLE
7.49/7.54	v -1 2 3 -4 -5 6 -7 -8 -9 -10 -11 12 -13 -14 -15 17 -18 -19 20 -21 -22 23 -24 25 26 27 28 29 30 31 -32 -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 -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 -128 -129 -130 132 -133 -134 135 136 -137 138 139 140 -141 143 -144 145 -146 -147 -148 -149 -150 -151 152 153 -154 155 156 157 -158 -159 160 161 162 163 164 165 166 167 -169 -170 171 -172 173 -174 -175 176 -177 -178 -179 181 -182 183 -184 185 187 -188 -189 190 191 -192 193 194 195 196 -197 198 199 200 -202 -203 204 205 -206 207 208 -209 -210 211 212 213 -214 215 -216 217 -218 -219 220 221 222 -223 224 226 -227 -229 231 232 -233 234 -235 236 -237 -238 -239 240 241 -242 -243 244 -245 -247 248 -249 -250 251 252 253 -254 -255 256 -257 258 259 -260 -261 262 263 -264 265 -266 -267 269 -270 -271 272 -273 275 276 -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 -318 319 320 321 -323 324 325 326 327 -328 -329 -330 -331 332 333 -334 -336 337 -338 339 340 341 342 343 -344 346 -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 -407 -408 409 -410 411 -412 -413 -414 415 -416 417 418 -419 420 421 422 423 424 -425 -426 -427 -428 429 431 432 -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 -467 468 469 470 471 -472 -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 -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:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1518446-1238299762/watcher-1518446-1238299762 -o /tmp/evaluation-result-1518446-1238299762/solver-1518446-1238299762 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1518446-1238299762.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 19902
/proc/meminfo: memFree=1017624/2055920 swapFree=4171840/4192956
[pid=19902] ppid=19900 vsize=976 CPUtime=0
/proc/19902/stat : 19902 (march_nn) R 19900 19902 19815 0 -1 4194304 145 0 0 0 0 0 0 0 18 0 1 0 1102637893 999424 128 1992294400 134512640 135197250 4294956240 18446744073709551615 134565228 0 0 4096 0 0 0 0 17 0 0 0
/proc/19902/statm: 244 128 66 167 0 75 0

[startup+0.0917689 s]
/proc/loadavg: 0.99 0.98 0.99 3/69 19902
/proc/meminfo: memFree=1017624/2055920 swapFree=4171840/4192956
[pid=19902] ppid=19900 vsize=1944 CPUtime=0.09
/proc/19902/stat : 19902 (march_nn) R 19900 19902 19815 0 -1 4194304 329 0 0 0 9 0 0 0 18 0 1 0 1102637893 1990656 312 1992294400 134512640 135197250 4294956240 18446744073709551615 134713087 0 0 4096 0 0 0 0 17 0 0 0
/proc/19902/statm: 486 312 93 167 0 317 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1944

[startup+0.101769 s]
/proc/loadavg: 0.99 0.98 0.99 3/69 19902
/proc/meminfo: memFree=1017624/2055920 swapFree=4171840/4192956
[pid=19902] ppid=19900 vsize=1944 CPUtime=0.1
/proc/19902/stat : 19902 (march_nn) R 19900 19902 19815 0 -1 4194304 329 0 0 0 10 0 0 0 18 0 1 0 1102637893 1990656 312 1992294400 134512640 135197250 4294956240 18446744073709551615 134525351 0 0 4096 0 0 0 0 17 0 0 0
/proc/19902/statm: 486 312 93 167 0 317 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1944

[startup+0.301787 s]
/proc/loadavg: 0.99 0.98 0.99 3/69 19902
/proc/meminfo: memFree=1017624/2055920 swapFree=4171840/4192956
[pid=19902] ppid=19900 vsize=1944 CPUtime=0.3
/proc/19902/stat : 19902 (march_nn) R 19900 19902 19815 0 -1 4194304 348 0 0 0 30 0 0 0 19 0 1 0 1102637893 1990656 331 1992294400 134512640 135197250 4294956240 18446744073709551615 134539276 0 0 4096 0 0 0 0 17 0 0 0
/proc/19902/statm: 486 331 93 167 0 317 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1944

[startup+0.701822 s]
/proc/loadavg: 0.99 0.98 0.99 3/69 19902
/proc/meminfo: memFree=1017624/2055920 swapFree=4171840/4192956
[pid=19902] ppid=19900 vsize=2128 CPUtime=0.7
/proc/19902/stat : 19902 (march_nn) R 19900 19902 19815 0 -1 4194304 369 0 0 0 70 0 0 0 23 0 1 0 1102637893 2179072 352 1992294400 134512640 135197250 4294956240 18446744073709551615 134542058 0 0 4096 0 0 0 0 17 0 0 0
/proc/19902/statm: 532 352 93 167 0 363 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 2128

[startup+1.50189 s]
/proc/loadavg: 0.99 0.98 0.99 2/70 19903
/proc/meminfo: memFree=1016464/2055920 swapFree=4171840/4192956
[pid=19902] ppid=19900 vsize=2264 CPUtime=1.49
/proc/19902/stat : 19902 (march_nn) R 19900 19902 19815 0 -1 4194304 410 0 0 0 149 0 0 0 25 0 1 0 1102637893 2318336 393 1992294400 134512640 135197250 4294956240 18446744073709551615 134525322 0 0 4096 0 0 0 0 17 0 0 0
/proc/19902/statm: 566 393 93 167 0 397 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2264

[startup+3.10103 s]
/proc/loadavg: 0.99 0.98 0.99 2/70 19903
/proc/meminfo: memFree=1016144/2055920 swapFree=4171840/4192956
[pid=19902] ppid=19900 vsize=2432 CPUtime=3.09
/proc/19902/stat : 19902 (march_nn) R 19900 19902 19815 0 -1 4194304 448 0 0 0 309 0 0 0 25 0 1 0 1102637893 2490368 431 1992294400 134512640 135197250 4294956240 18446744073709551615 134539344 0 0 4096 0 0 0 0 17 0 0 0
/proc/19902/statm: 608 431 93 167 0 439 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2432

[startup+6.30131 s]
/proc/loadavg: 0.99 0.98 0.99 2/70 19903
/proc/meminfo: memFree=1015824/2055920 swapFree=4171840/4192956
[pid=19902] ppid=19900 vsize=2740 CPUtime=6.29
/proc/19902/stat : 19902 (march_nn) R 19900 19902 19815 0 -1 4194304 513 0 0 0 629 0 0 0 25 0 1 0 1102637893 2805760 496 1992294400 134512640 135197250 4294956240 18446744073709551615 134548488 0 0 4096 0 0 0 0 17 0 0 0
/proc/19902/statm: 685 496 93 167 0 516 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2740

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

[startup+7.10138 s]
/proc/loadavg: 0.99 0.98 0.99 2/70 19903
/proc/meminfo: memFree=1015760/2055920 swapFree=4171840/4192956
[pid=19902] ppid=19900 vsize=2968 CPUtime=7.09
/proc/19902/stat : 19902 (march_nn) R 19900 19902 19815 0 -1 4194304 528 0 0 0 709 0 0 0 25 0 1 0 1102637893 3039232 511 1992294400 134512640 135197250 4294956240 18446744073709551615 134572734 0 0 4096 0 0 0 0 17 0 0 0
/proc/19902/statm: 742 511 93 167 0 573 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 2968

[startup+7.50142 s]
/proc/loadavg: 0.99 0.98 0.99 2/70 19903
/proc/meminfo: memFree=1015760/2055920 swapFree=4171840/4192956
[pid=19902] ppid=19900 vsize=2968 CPUtime=7.49
/proc/19902/stat : 19902 (march_nn) R 19900 19902 19815 0 -1 4194304 538 0 0 0 749 0 0 0 25 0 1 0 1102637893 3039232 521 1992294400 134512640 135197250 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 0 0 0
/proc/19902/statm: 742 521 93 167 0 573 0
Current children cumulated CPU time (s) 7.49
Current children cumulated vsize (KiB) 2968

Child status: 10
Real time (s): 7.54863
CPU time (s): 7.54685
CPU user time (s): 7.54285
CPU system time (s): 0.003999
CPU usage (%): 99.9765
Max. virtual memory (cumulated for all children) (KiB): 2968

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.54285
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 561
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= 21

runsolver used 0.012998 second user time and 0.028995 second system time

The end

Launcher Data 

Begin job on node58 at 2009-03-29 06:09:22
IDJOB=1518446
IDBENCH=70680
IDSOLVER=522
FILE ID=node58/1518446-1238299762
PBS_JOBID= 9061036
Free space on /tmp= 66400 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/560/unif-k3-r4.25-v560-c2380-S1876865608-086.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1518446-1238299762/watcher-1518446-1238299762 -o /tmp/evaluation-result-1518446-1238299762/solver-1518446-1238299762 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1518446-1238299762.cnf

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

MD5SUM BENCH= a08fcca560a80877927507a2ea133f40
RANDOM SEED=1085875701

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:       1018040 kB
Buffers:         89596 kB
Cached:         855752 kB
SwapCached:      11412 kB
Active:         275352 kB
Inactive:       682928 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1018040 kB
SwapTotal:     4192956 kB
SwapFree:      4171840 kB
Dirty:             816 kB
Writeback:           0 kB
Mapped:          17436 kB
Slab:            65072 kB
Committed_AS:  2524184 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 06:09:30