Trace number 1626991

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 8.34573 8.35877

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/460/
unif-k3-r4.25-v460-c1955-S1546885609-031.cnf
MD5SUMab528a6ad10c0959e2d17075599d3c26
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.019996
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, 21 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 457 free variables and 1934 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.454
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 155 duplicate clauses
0.00/0.01	c resolvent_look() :: found 81 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 460 variables and 2015 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 2015 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 2015 / 460 ) = 4.38
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: 140 JD: 25
0.03/0.08	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: 899 JD: 25
0.39/0.41	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 NC: 6211 JD: 25
2.79/2.84	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 |***********************************************************
8.28/8.35	c solution bin :: 0001000000000000000010010.1000000
8.28/8.35	c direction branchin :: current_rights = 4
8.28/8.35	
c |***********************************************************
8.28/8.35	c
8.28/8.35	c main():: nodeCount: 18780
8.28/8.35	c main():: dead ends in main: 230
8.28/8.35	c main():: lookAheadCount: 1587247
8.28/8.35	c main():: unitResolveCount: 181248
8.28/8.35	c main():: time=8.340000
8.28/8.35	c main():: necessary_assignments: 3489
8.28/8.35	c main():: bin_sat: 0, bin_unsat 0
8.28/8.35	c main():: doublelook: #: 64335, succes #: 43434
8.28/8.35	c main():: doublelook: overall 4.142 of all possible doublelooks executed
8.28/8.35	c main():: doublelook: succesrate: 67.512, average DL_trigger: 6622.406
8.28/8.35	c main():: SOLUTION VERIFIED :-)
8.28/8.35	s SATISFIABLE
8.28/8.35	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-1626991-1240142316/watcher-1626991-1240142316 -o /tmp/evaluation-result-1626991-1240142316/solver-1626991-1240142316 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1626991-1240142316.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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 0.98 3/64 26169
/proc/meminfo: memFree=960944/2055920 swapFree=4192956/4192956
[pid=26169] ppid=26167 vsize=804 CPUtime=0
/proc/26169/stat : 26169 (march_ks) R 26167 26169 24809 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 42257942 823296 110 1992294400 134512640 135019032 4294956240 18446744073709551615 134533376 0 0 4096 0 0 0 0 17 0 0 0
/proc/26169/statm: 201 111 52 123 0 76 0

[startup+0.0413949 s]
/proc/loadavg: 1.00 1.00 0.98 3/64 26169
/proc/meminfo: memFree=960944/2055920 swapFree=4192956/4192956
[pid=26169] ppid=26167 vsize=1212 CPUtime=0.03
/proc/26169/stat : 26169 (march_ks) R 26167 26169 24809 0 -1 4194304 249 0 0 0 3 0 0 0 18 0 1 0 42257942 1241088 232 1992294400 134512640 135019032 4294956240 18446744073709551615 134579409 0 0 4096 0 0 0 0 17 0 0 0
/proc/26169/statm: 303 232 73 123 0 178 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1212

[startup+0.101406 s]
/proc/loadavg: 1.00 1.00 0.98 3/64 26169
/proc/meminfo: memFree=960944/2055920 swapFree=4192956/4192956
[pid=26169] ppid=26167 vsize=1348 CPUtime=0.09
/proc/26169/stat : 26169 (march_ks) R 26167 26169 24809 0 -1 4194304 259 0 0 0 9 0 0 0 18 0 1 0 42257942 1380352 242 1992294400 134512640 135019032 4294956240 18446744073709551615 134538152 0 0 4096 0 0 0 0 17 1 0 0
/proc/26169/statm: 337 242 73 123 0 212 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1348

[startup+0.301446 s]
/proc/loadavg: 1.00 1.00 0.98 3/64 26169
/proc/meminfo: memFree=960944/2055920 swapFree=4192956/4192956
[pid=26169] ppid=26167 vsize=1348 CPUtime=0.29
/proc/26169/stat : 26169 (march_ks) R 26167 26169 24809 0 -1 4194304 273 0 0 0 29 0 0 0 19 0 1 0 42257942 1380352 256 1992294400 134512640 135019032 4294956240 18446744073709551615 134538609 0 0 4096 0 0 0 0 17 1 0 0
/proc/26169/statm: 337 256 73 123 0 212 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1348

[startup+0.701525 s]
/proc/loadavg: 1.00 1.00 0.98 3/64 26169
/proc/meminfo: memFree=960944/2055920 swapFree=4192956/4192956
[pid=26169] ppid=26167 vsize=1348 CPUtime=0.69
/proc/26169/stat : 26169 (march_ks) R 26167 26169 24809 0 -1 4194304 287 0 0 0 69 0 0 0 23 0 1 0 42257942 1380352 270 1992294400 134512640 135019032 4294956240 18446744073709551615 134526436 0 0 4096 0 0 0 0 17 1 0 0
/proc/26169/statm: 337 270 73 123 0 212 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1348

[startup+1.50168 s]
/proc/loadavg: 1.00 1.00 0.98 2/65 26170
/proc/meminfo: memFree=959912/2055920 swapFree=4192956/4192956
[pid=26169] ppid=26167 vsize=1516 CPUtime=1.49
/proc/26169/stat : 26169 (march_ks) R 26167 26169 24809 0 -1 4194304 300 0 0 0 149 0 0 0 25 0 1 0 42257942 1552384 283 1992294400 134512640 135019032 4294956240 18446744073709551615 134577546 0 0 4096 0 0 0 0 17 1 0 0
/proc/26169/statm: 379 283 73 123 0 254 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1516

[startup+3.102 s]
/proc/loadavg: 1.00 1.00 0.98 2/65 26170
/proc/meminfo: memFree=959784/2055920 swapFree=4192956/4192956
[pid=26169] ppid=26167 vsize=1516 CPUtime=3.09
/proc/26169/stat : 26169 (march_ks) R 26167 26169 24809 0 -1 4194304 324 0 0 0 309 0 0 0 25 0 1 0 42257942 1552384 307 1992294400 134512640 135019032 4294956240 18446744073709551615 134538183 0 0 4096 0 0 0 0 17 0 0 0
/proc/26169/statm: 379 307 73 123 0 254 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1516

[startup+6.30163 s]
/proc/loadavg: 1.00 1.00 0.98 2/65 26170
/proc/meminfo: memFree=959592/2055920 swapFree=4192956/4192956
[pid=26169] ppid=26167 vsize=1720 CPUtime=6.28
/proc/26169/stat : 26169 (march_ks) R 26167 26169 24809 0 -1 4194304 368 0 0 0 628 0 0 0 25 0 1 0 42257942 1761280 351 1992294400 134512640 135019032 4294956240 18446744073709551615 134526436 0 0 4096 0 0 0 0 17 0 0 0
/proc/26169/statm: 430 351 73 123 0 305 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 1720

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

[startup+7.10179 s]
/proc/loadavg: 1.00 1.00 0.98 2/65 26170
/proc/meminfo: memFree=959592/2055920 swapFree=4192956/4192956
[pid=26169] ppid=26167 vsize=1720 CPUtime=7.08
/proc/26169/stat : 26169 (march_ks) R 26167 26169 24809 0 -1 4194304 374 0 0 0 708 0 0 0 25 0 1 0 42257942 1761280 357 1992294400 134512640 135019032 4294956240 18446744073709551615 134538672 0 0 4096 0 0 0 0 17 0 0 0
/proc/26169/statm: 430 357 73 123 0 305 0
Current children cumulated CPU time (s) 7.08
Current children cumulated vsize (KiB) 1720

[startup+7.90195 s]
/proc/loadavg: 1.00 1.00 0.98 2/65 26170
/proc/meminfo: memFree=959528/2055920 swapFree=4192956/4192956
[pid=26169] ppid=26167 vsize=1820 CPUtime=7.88
/proc/26169/stat : 26169 (march_ks) R 26167 26169 24809 0 -1 4194304 380 0 0 0 788 0 0 0 25 0 1 0 42257942 1863680 363 1992294400 134512640 135019032 4294956240 18446744073709551615 134579542 0 0 4096 0 0 0 0 17 0 0 0
/proc/26169/statm: 455 363 73 123 0 330 0
Current children cumulated CPU time (s) 7.88
Current children cumulated vsize (KiB) 1820

[startup+8.30202 s]
/proc/loadavg: 1.00 1.00 0.98 2/65 26170
/proc/meminfo: memFree=959528/2055920 swapFree=4192956/4192956
[pid=26169] ppid=26167 vsize=1820 CPUtime=8.28
/proc/26169/stat : 26169 (march_ks) R 26167 26169 24809 0 -1 4194304 384 0 0 0 828 0 0 0 25 0 1 0 42257942 1863680 367 1992294400 134512640 135019032 4294956240 18446744073709551615 134538152 0 0 4096 0 0 0 0 17 0 0 0
/proc/26169/statm: 455 367 73 123 0 330 0
Current children cumulated CPU time (s) 8.28
Current children cumulated vsize (KiB) 1820

Child status: 10
Real time (s): 8.35877
CPU time (s): 8.34573
CPU user time (s): 8.34373
CPU system time (s): 0.001999
CPU usage (%): 99.844
Max. virtual memory (cumulated for all children) (KiB): 1820

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.34373
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 385
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= 156

runsolver used 0.011998 second user time and 0.025996 second system time

The end

Launcher Data 

Begin job on node66 at 2009-04-19 13:58:36
IDJOB=1626991
IDBENCH=70730
IDSOLVER=582
FILE ID=node66/1626991-1240142316
PBS_JOBID= 9157869
Free space on /tmp= 66372 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-S1546885609-031.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1626991-1240142316/watcher-1626991-1240142316 -o /tmp/evaluation-result-1626991-1240142316/solver-1626991-1240142316 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1626991-1240142316.cnf            

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= ab528a6ad10c0959e2d17075599d3c26
RANDOM SEED=960004414

node66.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		: 3000.263
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	: 5931.00
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		: 3000.263
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:        961488 kB
Buffers:         84096 kB
Cached:         930056 kB
SwapCached:          0 kB
Active:         325356 kB
Inactive:       702772 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        961488 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            2904 kB
Writeback:           0 kB
Mapped:          23684 kB
Slab:            52468 kB
Committed_AS:   175972 kB
PageTables:       1360 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= 66368 MiB
End job on node66 at 2009-04-19 13:58:44