Trace number 1544938

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 8.50334 4.30439

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/440/
unif-k3-r4.25-v440-c1870-S1339293988-069.cnf
MD5SUM04c00558435f25dfb5b6e5262d4684dc
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.009998
Satisfiable
(Un)Satisfiability was proved
Number of variables440
Number of clauses1870
Sum of the clauses size5610
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31870
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.01/0.01	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.01/0.01	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.01/0.01	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.01/0.01	c main()::
0.01/0.01	c initFormula():: searching for DIMACS p-line....
0.01/0.01	c initFormula():: the DIMACS p-line indicates a CNF of 440 variables and 1870 clauses.
0.01/0.01	c parseCNF():: parsing....
0.01/0.01	c parseCNF():: the CNF contains 0 unary clauses.
0.01/0.01	c runParser():: parsing was successful, warming up engines...
0.01/0.01	c simplify_formula():: removed 0 tautological, 3 satisfied and 0 duplicate clauses
0.01/0.01	c preprocessing fase I completed:: there are now 439 free variables and 1867 clauses.
0.01/0.01	c stat :: sign balance is biased by 0.482
0.01/0.01	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.01/0.01	c using 3-SAT heuristics (occurence based diff)
0.01/0.01	c longest clause has size 3
0.01/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 184 duplicate clauses
0.01/0.01	c resolvent_look() :: found 89 resolvents
0.01/0.01	c lessRedundantTransformation():: nothing to be done.
0.01/0.01	c transformTo3SAT():: you gave me 440 variables and 1956 clauses.
0.01/0.01	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.01/0.01	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.01/0.01	c transformTo3SAT():: the transformation yielded 440 variabels and 1956 clauses.
0.01/0.01	c main():: clause / variable ratio: ( 1956 / 440 ) = 4.45
0.01/0.01	c longest clause has size 3
0.01/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.01/0.01	c dynamic_preselect_setsize :: off
0.01/0.01	c suggested doublelook initial :: 0
0.01/0.01	c main():: all systems go!
0.01/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 193 JD: 16
0.10/0.10	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: 5618 JD: 16
2.90/2.93	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
4.20/4.30	c solution bin :: 1000000100000000.0111010011000100
4.20/4.30	c direction branchin :: current_rights = 9
4.20/4.30	
c |*******************************
4.20/4.30	c
4.20/4.30	c main():: nodeCount: 8290
4.20/4.30	c main():: dead ends in main: 167
4.20/4.30	c main():: lookAheadCount: 644666
4.20/4.30	c main():: unitResolveCount: 107187
4.20/4.30	c main():: time=4.300000
4.20/4.30	c main():: necessary_assignments: 2289
4.20/4.30	c main():: bin_sat: 0, bin_unsat 0
4.20/4.30	c main():: doublelook: #: 36549, succes #: 27441
4.20/4.30	c main():: doublelook: overall 5.873 of all possible doublelooks executed
4.20/4.30	c main():: doublelook: succesrate: 75.080, average DL_trigger: 6804.043
4.20/4.30	c main():: SOLUTION VERIFIED :-)
4.20/4.30	s SATISFIABLE
4.20/4.30	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 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-1544938-1238615011/watcher-1544938-1238615011 -o /tmp/evaluation-result-1544938-1238615011/solver-1544938-1238615011 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1544938-1238615011.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 0.94 3/65 8780
/proc/meminfo: memFree=1191976/2055920 swapFree=4176856/4192956
[pid=8780] ppid=8778 vsize=796 CPUtime=0
/proc/8780/stat : 8780 (march_ks) R 8778 8780 8455 0 -1 4194304 126 0 0 0 0 0 0 0 18 0 1 0 1020874809 815104 109 1992294400 134512640 135019032 4294956240 18446744073709551615 134533376 0 0 4096 0 0 0 0 17 0 0 0
/proc/8780/statm: 199 109 51 123 0 74 0

[startup+0.0133461 s]
/proc/loadavg: 1.00 1.00 0.94 3/65 8780
/proc/meminfo: memFree=1191976/2055920 swapFree=4176856/4192956
[pid=8780] ppid=8778 vsize=1060 CPUtime=0.01
/proc/8780/stat : 8780 (march_ks) R 8778 8780 8455 0 -1 4194304 184 0 0 0 1 0 0 0 18 0 1 0 1020874809 1085440 167 1992294400 134512640 135019032 4294956240 18446744073709551615 134677364 0 0 4096 0 0 0 0 17 0 0 0
/proc/8780/statm: 265 167 67 123 0 140 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1060

[startup+0.101355 s]
/proc/loadavg: 1.00 1.00 0.94 3/65 8780
/proc/meminfo: memFree=1191976/2055920 swapFree=4176856/4192956
[pid=8780] ppid=8778 vsize=1188 CPUtime=0.1
/proc/8780/stat : 8780 (march_ks) R 8778 8780 8455 0 -1 4194304 251 0 0 0 10 0 0 0 18 0 1 0 1020874809 1216512 234 1992294400 134512640 135019032 4294956240 18446744073709551615 134538142 0 0 4096 0 0 0 0 17 0 0 0
/proc/8780/statm: 297 234 73 123 0 172 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1188

[startup+0.30137 s]
/proc/loadavg: 1.00 1.00 0.94 3/65 8780
/proc/meminfo: memFree=1191976/2055920 swapFree=4176856/4192956
[pid=8780] ppid=8778 vsize=1320 CPUtime=0.3
/proc/8780/stat : 8780 (march_ks) R 8778 8780 8455 0 -1 4194304 262 0 0 0 30 0 0 0 19 0 1 0 1020874809 1351680 245 1992294400 134512640 135019032 4294956240 18446744073709551615 134526505 0 0 4096 0 0 0 0 17 0 0 0
/proc/8780/statm: 330 245 73 123 0 205 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1320

[startup+0.701409 s]
/proc/loadavg: 1.00 1.00 0.94 3/65 8780
/proc/meminfo: memFree=1191976/2055920 swapFree=4176856/4192956
[pid=8780] ppid=8778 vsize=1320 CPUtime=0.7
/proc/8780/stat : 8780 (march_ks) R 8778 8780 8455 0 -1 4194304 277 0 0 0 70 0 0 0 23 0 1 0 1020874809 1351680 260 1992294400 134512640 135019032 4294956240 18446744073709551615 134577639 0 0 4096 0 0 0 0 17 0 0 0
/proc/8780/statm: 330 260 73 123 0 205 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1320

[startup+1.50148 s]
/proc/loadavg: 1.00 1.00 0.94 2/66 8781
/proc/meminfo: memFree=1191136/2055920 swapFree=4176856/4192956
[pid=8780] ppid=8778 vsize=1452 CPUtime=1.5
/proc/8780/stat : 8780 (march_ks) R 8778 8780 8455 0 -1 4194304 283 0 0 0 150 0 0 0 25 0 1 0 1020874809 1486848 266 1992294400 134512640 135019032 4294956240 18446744073709551615 134564805 0 0 4096 0 0 0 0 17 0 0 0
/proc/8780/statm: 363 266 73 123 0 238 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1452

[startup+3.10163 s]
/proc/loadavg: 1.00 1.00 0.94 2/66 8781
/proc/meminfo: memFree=1190880/2055920 swapFree=4176856/4192956
[pid=8780] ppid=8778 vsize=1452 CPUtime=3.1
/proc/8780/stat : 8780 (march_ks) R 8778 8780 8455 0 -1 4194304 292 0 0 0 310 0 0 0 25 0 1 0 1020874809 1486848 275 1992294400 134512640 135019032 4294956240 18446744073709551615 134587923 0 0 4096 0 0 0 0 17 0 0 0
/proc/8780/statm: 363 275 73 123 0 238 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 1452

############
# WARNING:
# current cumulated CPU time (0 s) is less than in the last sample (4.2 s)
# The time of a child was probably not reported to its father.
# (see the two samples below)
# Adding the difference (4.2 s) to the 'lost time'.

[startup+4.20174 s]
/proc/loadavg: 1.00 1.00 0.94 2/66 8781
/proc/meminfo: memFree=1190880/2055920 swapFree=4176856/4192956
[pid=8780] ppid=8778 vsize=1452 CPUtime=4.2
/proc/8780/stat : 8780 (march_ks) R 8778 8780 8455 0 -1 4194304 294 0 0 0 420 0 0 0 25 0 1 0 1020874809 1486848 277 1992294400 134512640 135019032 4294956240 18446744073709551615 134542776 0 0 4096 0 0 0 0 17 0 0 0
/proc/8780/statm: 363 277 73 123 0 238 0
Current children cumulated CPU time (s) 4.2
Current children cumulated vsize (KiB) 1452

[startup+4.30174 s]
/proc/loadavg: 1.00 1.00 0.94 2/66 8781
/proc/meminfo: memFree=1190880/2055920 swapFree=4176856/4192956
[pid=8780] ppid=-1 vsize=0 CPUtime=0
/proc/8780/stat : -- couldn't open stat file --/proc/8780/statm: Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0
#
############


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

[startup+3.90171 s]
/proc/loadavg: 1.00 1.00 0.94 2/66 8781
/proc/meminfo: memFree=1190880/2055920 swapFree=4176856/4192956
[pid=8780] ppid=8778 vsize=1452 CPUtime=3.9
/proc/8780/stat : 8780 (march_ks) R 8778 8780 8455 0 -1 4194304 292 0 0 0 390 0 0 0 25 0 1 0 1020874809 1486848 275 1992294400 134512640 135019032 4294956240 18446744073709551615 134527212 0 0 4096 0 0 0 0 17 0 0 0
/proc/8780/statm: 363 275 73 123 0 238 0
Current children cumulated CPU time (s) 3.9
Current children cumulated vsize (KiB) 1452

[startup+4.30174 s]
/proc/loadavg: 1.00 1.00 0.94 2/66 8781
/proc/meminfo: memFree=1190880/2055920 swapFree=4176856/4192956
[pid=8780] ppid=-1 vsize=0 CPUtime=0
/proc/8780/stat : -- couldn't open stat file --/proc/8780/statm: Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0

Child status: 10

# WARNING:
# The CPU time of some children was not reported to their father
# (probably because of a missing or aborted wait()).
# This 'lost CPU time' is added to the watched process CPU time.
#  lost CPU time (s): 4.2
#  lost CPU user time (s): 4.2
#  lost CPU system time (s): 0

Real time (s): 4.30439
CPU time (s): 8.50334
CPU user time (s): 8.50235
CPU system time (s): 0.000999
CPU usage (%): 197.55
Max. virtual memory (cumulated for all children) (KiB): 1452

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.30234
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 296
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= 14

runsolver used 0.006998 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node8 at 2009-04-01 21:43:31
IDJOB=1544938
IDBENCH=70696
IDSOLVER=559
FILE ID=node8/1544938-1238615011
PBS_JOBID= 9073693
Free space on /tmp= 64248 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/440/unif-k3-r4.25-v440-c1870-S1339293988-069.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1544938-1238615011/watcher-1544938-1238615011 -o /tmp/evaluation-result-1544938-1238615011/solver-1544938-1238615011 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1544938-1238615011.cnf            

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

MD5SUM BENCH= 04c00558435f25dfb5b6e5262d4684dc
RANDOM SEED=40949841

node8.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		: 3000.232
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		: 3000.232
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1192520 kB
Buffers:        107984 kB
Cached:         648152 kB
SwapCached:       9204 kB
Active:         199492 kB
Inactive:       567252 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1192520 kB
SwapTotal:     4192956 kB
SwapFree:      4176856 kB
Dirty:            2896 kB
Writeback:           0 kB
Mapped:          16332 kB
Slab:            82480 kB
Committed_AS:  2723812 kB
PageTables:       1376 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 64244 MiB
End job on node8 at 2009-04-01 21:43:35