Trace number 1518854

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 4.73628 4.73806

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/480/
unif-k3-r4.25-v480-c2040-S1229813320-044.cnf
MD5SUM2315ae7c52f58a7ab05069e081d5c3af
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.031994
Satisfiable
(Un)Satisfiability was proved
Number of variables480
Number of clauses2040
Sum of the clauses size6120
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32040
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 480 variables and 2040 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, 13 satisfied and 0 duplicate clauses
0.00/0.02	c preprocessing fase I completed:: there are now 478 free variables and 2027 clauses.
0.00/0.02	c stat :: sign balance is biased by 0.458
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 148 duplicate clauses
0.00/0.02	c resolvent_look() :: found 75 resolvents
0.00/0.02	c lessRedundantTransformation():: nothing to be done.
0.00/0.02	c transformTo3SAT():: you gave me 480 variables and 2102 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 480 variabels and 2102 clauses.
0.00/0.02	c main():: clause / variable ratio: ( 2102 / 480 ) = 4.38
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 = 478
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: 32
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: 515
0.10/0.16	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: 4542
1.49/1.52	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 |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
4.69/4.73	c |00010000000001000100000000000000000000000000000000000000000000$|
4.69/4.73	
c |***********************************************************
4.69/4.73	c
4.69/4.73	c main():: nodeCount: 13776
4.69/4.73	c main():: dead ends in main: 47
4.69/4.73	c main():: lookAheadCount: 981282
4.69/4.73	c main():: unitResolveCount: 82531
4.69/4.73	c main():: time=4.730000
4.69/4.73	c main():: necessary_assignments: 1280
4.69/4.73	c main():: bin_sat: 0, bin_unsat 0
4.69/4.73	c main():: doublelook: #: 29243, succes #: 12352
4.69/4.73	c main():: doublelook: overall 3.010 of all possible doublelooks executed
4.69/4.73	c main():: doublelook: succesrate: 42.239, average DL_trigger: 50.336
4.69/4.73	c main():: SOLUTION VERIFIED :-)
4.69/4.73	s SATISFIABLE
4.69/4.73	v 2 -3 4 -5 6 -7 8 -9 10 11 12 -13 14 15 16 17 -19 20 -21 22 23 -24 -25 27 28 -29 30 -32 -34 35 36 -37 -38 -39 40 41 -42 -43 44 45 46 47 48 49 50 51 -52 -53 54 55 -56 -58 -59 -60 61 -62 -63 64 65 66 -68 -69 70 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 -138 139 140 141 142 -143 144 -145 -147 -148 -149 -150 151 152 153 154 155 156 157 158 159 160 161 162 -163 -164 -165 166 168 -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 -203 205 -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 -246 -247 248 -249 250 251 252 253 -254 255 -256 -257 -258 259 -260 -261 263 -264 -265 -266 267 268 269 270 -271 272 273 274 275 276 -277 278 280 281 282 283 284 -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 -333 334 335 336 337 338 339 341 342 -343 344 -345 -346 347 348 349 -351 352 -353 354 355 356 -357 358 359 360 361 362 -363 -364 -365 366 367 -368 369 -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 -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 -447 -448 449 -450 451 452 -453 454 455 456 -457 -458 460 462 463 464 -465 -466 467 -468 469 -470 471 472 473 474 -476 477 478 479 480 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-1518854-1238305136/watcher-1518854-1238305136 -o /tmp/evaluation-result-1518854-1238305136/solver-1518854-1238305136 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1518854-1238305136.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 0.99 0.99 3/64 16880
/proc/meminfo: memFree=1819936/2055920 swapFree=4178496/4192956
[pid=16880] ppid=16878 vsize=972 CPUtime=0
/proc/16880/stat : 16880 (march_nn) R 16878 16880 16661 0 -1 4194304 146 0 0 0 0 0 0 0 18 0 1 0 1103180853 995328 129 1992294400 134512640 135197250 4294956240 18446744073709551615 134565220 0 0 4096 0 0 0 0 17 1 0 0
/proc/16880/statm: 243 129 66 167 0 74 0

[startup+0.039853 s]
/proc/loadavg: 1.00 0.99 0.99 3/64 16880
/proc/meminfo: memFree=1819936/2055920 swapFree=4178496/4192956
[pid=16880] ppid=16878 vsize=1716 CPUtime=0.03
/proc/16880/stat : 16880 (march_nn) R 16878 16880 16661 0 -1 4194304 277 0 0 0 3 0 0 0 18 0 1 0 1103180853 1757184 260 1992294400 134512640 135197250 4294956240 18446744073709551615 134541916 0 0 4096 0 0 0 0 17 1 0 0
/proc/16880/statm: 429 260 93 167 0 260 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1716

[startup+0.101862 s]
/proc/loadavg: 1.00 0.99 0.99 3/64 16880
/proc/meminfo: memFree=1819936/2055920 swapFree=4178496/4192956
[pid=16880] ppid=16878 vsize=1716 CPUtime=0.1
/proc/16880/stat : 16880 (march_nn) R 16878 16880 16661 0 -1 4194304 287 0 0 0 10 0 0 0 18 0 1 0 1103180853 1757184 270 1992294400 134512640 135197250 4294956240 18446744073709551615 134542104 0 0 4096 0 0 0 0 17 1 0 0
/proc/16880/statm: 429 270 93 167 0 260 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1716

[startup+0.301893 s]
/proc/loadavg: 1.00 0.99 0.99 3/64 16880
/proc/meminfo: memFree=1819936/2055920 swapFree=4178496/4192956
[pid=16880] ppid=16878 vsize=1848 CPUtime=0.3
/proc/16880/stat : 16880 (march_nn) R 16878 16880 16661 0 -1 4194304 302 0 0 0 30 0 0 0 19 0 1 0 1103180853 1892352 285 1992294400 134512640 135197250 4294956240 18446744073709551615 134539373 0 0 4096 0 0 0 0 17 1 0 0
/proc/16880/statm: 462 285 93 167 0 293 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1848

[startup+0.701958 s]
/proc/loadavg: 1.00 0.99 0.99 3/64 16880
/proc/meminfo: memFree=1819936/2055920 swapFree=4178496/4192956
[pid=16880] ppid=16878 vsize=1980 CPUtime=0.69
/proc/16880/stat : 16880 (march_nn) R 16878 16880 16661 0 -1 4194304 332 0 0 0 69 0 0 0 22 0 1 0 1103180853 2027520 315 1992294400 134512640 135197250 4294956240 18446744073709551615 134525438 0 0 4096 0 0 0 0 17 1 0 0
/proc/16880/statm: 495 315 93 167 0 326 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1980

[startup+1.50109 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 16881
/proc/meminfo: memFree=1818968/2055920 swapFree=4178496/4192956
[pid=16880] ppid=16878 vsize=1980 CPUtime=1.49
/proc/16880/stat : 16880 (march_nn) R 16878 16880 16661 0 -1 4194304 347 0 0 0 149 0 0 0 25 0 1 0 1103180853 2027520 330 1992294400 134512640 135197250 4294956240 18446744073709551615 134552735 0 0 4096 0 0 0 0 17 1 0 0
/proc/16880/statm: 495 330 93 167 0 326 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1980

[startup+3.10135 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 16881
/proc/meminfo: memFree=1818648/2055920 swapFree=4178496/4192956
[pid=16880] ppid=16878 vsize=2284 CPUtime=3.09
/proc/16880/stat : 16880 (march_nn) R 16878 16880 16661 0 -1 4194304 410 0 0 0 309 0 0 0 25 0 1 0 1103180853 2338816 393 1992294400 134512640 135197250 4294956240 18446744073709551615 134542117 0 0 4096 0 0 0 0 17 1 0 0
/proc/16880/statm: 571 393 93 167 0 402 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2284

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

[startup+3.90148 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 16881
/proc/meminfo: memFree=1818584/2055920 swapFree=4178496/4192956
[pid=16880] ppid=16878 vsize=2284 CPUtime=3.89
/proc/16880/stat : 16880 (march_nn) R 16878 16880 16661 0 -1 4194304 423 0 0 0 389 0 0 0 25 0 1 0 1103180853 2338816 406 1992294400 134512640 135197250 4294956240 18446744073709551615 134525272 0 0 4096 0 0 0 0 17 1 0 0
/proc/16880/statm: 571 406 93 167 0 402 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 2284

[startup+4.30154 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 16881
/proc/meminfo: memFree=1818456/2055920 swapFree=4178496/4192956
[pid=16880] ppid=16878 vsize=2476 CPUtime=4.3
/proc/16880/stat : 16880 (march_nn) R 16878 16880 16661 0 -1 4194304 443 0 0 0 430 0 0 0 25 0 1 0 1103180853 2535424 426 1992294400 134512640 135197250 4294956240 18446744073709551615 134542026 0 0 4096 0 0 0 0 17 1 0 0
/proc/16880/statm: 619 426 93 167 0 450 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 2476

[startup+4.7016 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 16881
/proc/meminfo: memFree=1818456/2055920 swapFree=4178496/4192956
[pid=16880] ppid=16878 vsize=2628 CPUtime=4.69
/proc/16880/stat : 16880 (march_nn) R 16878 16880 16661 0 -1 4194304 453 0 0 0 469 0 0 0 25 0 1 0 1103180853 2691072 436 1992294400 134512640 135197250 4294956240 18446744073709551615 134542058 0 0 4096 0 0 0 0 17 1 0 0
/proc/16880/statm: 657 436 93 167 0 488 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 2628

Child status: 10
Real time (s): 4.73806
CPU time (s): 4.73628
CPU user time (s): 4.73328
CPU system time (s): 0.002999
CPU usage (%): 99.9623
Max. virtual memory (cumulated for all children) (KiB): 2628

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.73328
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= 475
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= 11

runsolver used 0.013997 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node3 at 2009-03-29 07:38:56
IDJOB=1518854
IDBENCH=70714
IDSOLVER=522
FILE ID=node3/1518854-1238305136
PBS_JOBID= 9061037
Free space on /tmp= 65916 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/480/unif-k3-r4.25-v480-c2040-S1229813320-044.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1518854-1238305136/watcher-1518854-1238305136 -o /tmp/evaluation-result-1518854-1238305136/solver-1518854-1238305136 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1518854-1238305136.cnf

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

MD5SUM BENCH= 2315ae7c52f58a7ab05069e081d5c3af
RANDOM SEED=151063049

node3.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		: 3000.275
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		: 3000.275
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:       1820416 kB
Buffers:         48940 kB
Cached:         113676 kB
SwapCached:       8268 kB
Active:         100012 kB
Inactive:        72536 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1820416 kB
SwapTotal:     4192956 kB
SwapFree:      4178496 kB
Dirty:             804 kB
Writeback:           0 kB
Mapped:          15584 kB
Slab:            48988 kB
Committed_AS:  2685184 kB
PageTables:       1376 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= 65916 MiB
End job on node3 at 2009-03-29 07:39:01