Trace number 1544998

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 0.648901 0.64868

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/460/
unif-k3-r4.25-v460-c1955-S1733990810-090.cnf
MD5SUMcc65c4677bcd52e268abf185559aaea4
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.006998
Satisfiable
(Un)Satisfiability was proved
Number of variables460
Number of clauses1955
Sum of the clauses size5865
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31955
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 460 variables and 1955 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, 7 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 459 free variables and 1948 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.422
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 165 duplicate clauses
0.00/0.01	c resolvent_look() :: found 91 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 460 variables and 2039 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 460 variabels and 2039 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 2039 / 460 ) = 4.43
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: 143 JD: 25
0.06/0.09	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
0.59/0.64	c solution bin :: 0000000000000100000000000.0010000
0.59/0.64	c direction branchin :: current_rights = 6
0.59/0.64	
c |***************************************************************
0.59/0.64	c
0.59/0.64	c main():: nodeCount: 1242
0.59/0.64	c main():: dead ends in main: 31
0.59/0.64	c main():: lookAheadCount: 100009
0.59/0.64	c main():: unitResolveCount: 16435
0.59/0.64	c main():: time=0.640000
0.59/0.64	c main():: necessary_assignments: 372
0.59/0.64	c main():: bin_sat: 0, bin_unsat 0
0.59/0.64	c main():: doublelook: #: 4779, succes #: 3392
0.59/0.64	c main():: doublelook: overall 4.918 of all possible doublelooks executed
0.59/0.64	c main():: doublelook: succesrate: 70.977, average DL_trigger: 7069.466
0.59/0.64	c main():: SOLUTION VERIFIED :-)
0.59/0.64	s SATISFIABLE
0.59/0.64	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 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-1544998-1238615044/watcher-1544998-1238615044 -o /tmp/evaluation-result-1544998-1238615044/solver-1544998-1238615044 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1544998-1238615044.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 0.96 2/64 2467
/proc/meminfo: memFree=1013880/2055920 swapFree=4176444/4192956
[pid=2467] ppid=2465 vsize=804 CPUtime=0
/proc/2467/stat : 2467 (march_ks) R 2465 2467 1976 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 1134169827 823296 110 1992294400 134512640 135019032 4294956240 18446744073709551615 134561792 0 0 4096 0 0 0 0 17 0 0 0
/proc/2467/statm: 201 110 50 123 0 76 0

[startup+0.069283 s]
/proc/loadavg: 1.00 1.00 0.96 2/64 2467
/proc/meminfo: memFree=1013880/2055920 swapFree=4176444/4192956
[pid=2467] ppid=2465 vsize=1344 CPUtime=0.06
/proc/2467/stat : 2467 (march_ks) R 2465 2467 1976 0 -1 4194304 260 0 0 0 6 0 0 0 18 0 1 0 1134169827 1376256 243 1992294400 134512640 135019032 4294956240 18446744073709551615 134548987 0 0 4096 0 0 0 0 17 0 0 0
/proc/2467/statm: 336 243 73 123 0 211 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1344

[startup+0.101286 s]
/proc/loadavg: 1.00 1.00 0.96 2/64 2467
/proc/meminfo: memFree=1013880/2055920 swapFree=4176444/4192956
[pid=2467] ppid=2465 vsize=1344 CPUtime=0.09
/proc/2467/stat : 2467 (march_ks) R 2465 2467 1976 0 -1 4194304 266 0 0 0 9 0 0 0 18 0 1 0 1134169827 1376256 249 1992294400 134512640 135019032 4294956240 18446744073709551615 134564838 0 0 4096 0 0 0 0 17 0 0 0
/proc/2467/statm: 336 249 73 123 0 211 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1344

[startup+0.301306 s]
/proc/loadavg: 1.00 1.00 0.96 2/64 2467
/proc/meminfo: memFree=1013880/2055920 swapFree=4176444/4192956
[pid=2467] ppid=2465 vsize=1344 CPUtime=0.29
/proc/2467/stat : 2467 (march_ks) R 2465 2467 1976 0 -1 4194304 277 0 0 0 29 0 0 0 19 0 1 0 1134169827 1376256 260 1992294400 134512640 135019032 4294956240 18446744073709551615 134538152 0 0 4096 0 0 0 0 17 0 0 0
/proc/2467/statm: 336 260 73 123 0 211 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1344

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

[startup+0.501326 s]
/proc/loadavg: 1.00 1.00 0.96 2/64 2467
/proc/meminfo: memFree=1013880/2055920 swapFree=4176444/4192956
[pid=2467] ppid=2465 vsize=1344 CPUtime=0.49
/proc/2467/stat : 2467 (march_ks) R 2465 2467 1976 0 -1 4194304 284 0 0 0 49 0 0 0 21 0 1 0 1134169827 1376256 267 1992294400 134512640 135019032 4294956240 18446744073709551615 134538215 0 0 4096 0 0 0 0 17 0 0 0
/proc/2467/statm: 336 267 73 123 0 211 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 1344

[startup+0.601337 s]
/proc/loadavg: 1.00 1.00 0.96 2/64 2467
/proc/meminfo: memFree=1013880/2055920 swapFree=4176444/4192956
[pid=2467] ppid=2465 vsize=1344 CPUtime=0.59
/proc/2467/stat : 2467 (march_ks) R 2465 2467 1976 0 -1 4194304 284 0 0 0 59 0 0 0 22 0 1 0 1134169827 1376256 267 1992294400 134512640 135019032 4294956240 18446744073709551615 134538131 0 0 4096 0 0 0 0 17 0 0 0
/proc/2467/statm: 336 267 73 123 0 211 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 1344

Child status: 10
Real time (s): 0.64868
CPU time (s): 0.648901
CPU user time (s): 0.643902
CPU system time (s): 0.004999
CPU usage (%): 100.034
Max. virtual memory (cumulated for all children) (KiB): 1344

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.643902
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 286
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= 1

runsolver used 0.000999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node27 at 2009-04-01 21:44:05
IDJOB=1544998
IDBENCH=70726
IDSOLVER=559
FILE ID=node27/1544998-1238615044
PBS_JOBID= 9073615
Free space on /tmp= 65720 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/460/unif-k3-r4.25-v460-c1955-S1733990810-090.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1544998-1238615044/watcher-1544998-1238615044 -o /tmp/evaluation-result-1544998-1238615044/solver-1544998-1238615044 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1544998-1238615044.cnf            

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

MD5SUM BENCH= cc65c4677bcd52e268abf185559aaea4
RANDOM SEED=45935146

node27.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		: 2800.196
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	: 5521.40
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		: 2800.196
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:       1014424 kB
Buffers:         98092 kB
Cached:         838840 kB
SwapCached:       9492 kB
Active:         221576 kB
Inactive:       726488 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1014424 kB
SwapTotal:     4192956 kB
SwapFree:      4176444 kB
Dirty:            3376 kB
Writeback:           0 kB
Mapped:          16788 kB
Slab:            79412 kB
Committed_AS:  3043236 kB
PageTables:       1380 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 65716 MiB
End job on node27 at 2009-04-01 21:44:05