Trace number 1544948

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 7.61984 7.62083

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/440/
unif-k3-r4.25-v440-c1870-S1263695887-042.cnf
MD5SUM6b9d9c25eec439b73e50a5fc031019ea
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.013997
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 

0.00/0.01	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 440 variables and 1870 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, 15 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 438 free variables and 1855 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.511
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 159 duplicate clauses
0.00/0.01	c resolvent_look() :: found 76 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 440 variables and 1931 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 440 variabels and 1931 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1931 / 440 ) = 4.39
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: 174 JD: 23
0.01/0.09	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: 1744 JD: 23
0.79/0.84	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 |****************************************************************| 2 NC: 10147 JD: 23
4.69/4.80	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 |*******************************************
7.60/7.62	c solution bin :: 01010000000000010000000.110000000
7.60/7.62	c direction branchin :: current_rights = 5
7.60/7.62	
c |*******************************************
7.60/7.62	c
7.60/7.62	c main():: nodeCount: 16546
7.60/7.62	c main():: dead ends in main: 341
7.60/7.62	c main():: lookAheadCount: 1308421
7.60/7.62	c main():: unitResolveCount: 190521
7.60/7.62	c main():: time=7.610000
7.60/7.62	c main():: necessary_assignments: 3906
7.60/7.62	c main():: bin_sat: 0, bin_unsat 0
7.60/7.62	c main():: doublelook: #: 64265, succes #: 46409
7.60/7.62	c main():: doublelook: overall 5.057 of all possible doublelooks executed
7.60/7.62	c main():: doublelook: succesrate: 72.215, average DL_trigger: 6509.357
7.60/7.62	c main():: SOLUTION VERIFIED :-)
7.60/7.62	s SATISFIABLE
7.60/7.62	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-1544948-1238615017/watcher-1544948-1238615017 -o /tmp/evaluation-result-1544948-1238615017/solver-1544948-1238615017 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1544948-1238615017.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 0.93 3/64 17302
/proc/meminfo: memFree=1513704/2055920 swapFree=4178796/4192956
[pid=17302] ppid=17300 vsize=796 CPUtime=0
/proc/17302/stat : 17302 (march_ks) R 17300 17302 17029 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 1134163504 815104 110 1992294400 134512640 135019032 4294956240 18446744073709551615 134554629 0 0 4096 0 0 0 0 17 0 0 0
/proc/17302/statm: 199 110 52 123 0 74 0

[startup+0.0171901 s]
/proc/loadavg: 1.00 1.00 0.93 3/64 17302
/proc/meminfo: memFree=1513704/2055920 swapFree=4178796/4192956
[pid=17302] ppid=17300 vsize=1188 CPUtime=0.01
/proc/17302/stat : 17302 (march_ks) R 17300 17302 17029 0 -1 4194304 238 0 0 0 1 0 0 0 18 0 1 0 1134163504 1216512 221 1992294400 134512640 135019032 4294956240 18446744073709551615 134564384 0 0 4096 0 0 0 0 17 0 0 0
/proc/17302/statm: 297 221 73 123 0 172 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1188

[startup+0.101197 s]
/proc/loadavg: 1.00 1.00 0.93 3/64 17302
/proc/meminfo: memFree=1513704/2055920 swapFree=4178796/4192956
[pid=17302] ppid=17300 vsize=1324 CPUtime=0.09
/proc/17302/stat : 17302 (march_ks) R 17300 17302 17029 0 -1 4194304 256 0 0 0 9 0 0 0 18 0 1 0 1134163504 1355776 239 1992294400 134512640 135019032 4294956240 18446744073709551615 134563386 0 0 4096 0 0 0 0 17 0 0 0
/proc/17302/statm: 331 239 73 123 0 206 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1324

[startup+0.301214 s]
/proc/loadavg: 1.00 1.00 0.93 3/64 17302
/proc/meminfo: memFree=1513704/2055920 swapFree=4178796/4192956
[pid=17302] ppid=17300 vsize=1324 CPUtime=0.29
/proc/17302/stat : 17302 (march_ks) R 17300 17302 17029 0 -1 4194304 271 0 0 0 29 0 0 0 19 0 1 0 1134163504 1355776 254 1992294400 134512640 135019032 4294956240 18446744073709551615 134548922 0 0 4096 0 0 0 0 17 0 0 0
/proc/17302/statm: 331 254 73 123 0 206 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1324

[startup+0.701248 s]
/proc/loadavg: 1.00 1.00 0.93 3/64 17302
/proc/meminfo: memFree=1513704/2055920 swapFree=4178796/4192956
[pid=17302] ppid=17300 vsize=1324 CPUtime=0.69
/proc/17302/stat : 17302 (march_ks) R 17300 17302 17029 0 -1 4194304 279 0 0 0 69 0 0 0 23 0 1 0 1134163504 1355776 262 1992294400 134512640 135019032 4294956240 18446744073709551615 134538215 0 0 4096 0 0 0 0 17 0 0 0
/proc/17302/statm: 331 262 73 123 0 206 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1324

[startup+1.50132 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 17303
/proc/meminfo: memFree=1512864/2055920 swapFree=4178796/4192956
[pid=17302] ppid=17300 vsize=1460 CPUtime=1.49
/proc/17302/stat : 17302 (march_ks) R 17300 17302 17029 0 -1 4194304 292 0 0 0 149 0 0 0 25 0 1 0 1134163504 1495040 275 1992294400 134512640 135019032 4294956240 18446744073709551615 134538131 0 0 4096 0 0 0 0 17 0 0 0
/proc/17302/statm: 365 275 73 123 0 240 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1460

[startup+3.10146 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 17303
/proc/meminfo: memFree=1512736/2055920 swapFree=4178796/4192956
[pid=17302] ppid=17300 vsize=1460 CPUtime=3.09
/proc/17302/stat : 17302 (march_ks) R 17300 17302 17029 0 -1 4194304 308 0 0 0 309 0 0 0 25 0 1 0 1134163504 1495040 291 1992294400 134512640 135019032 4294956240 18446744073709551615 134564384 0 0 4096 0 0 0 0 17 0 0 0
/proc/17302/statm: 365 291 73 123 0 240 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1460

[startup+6.30173 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 17303
/proc/meminfo: memFree=1512608/2055920 swapFree=4178796/4192956
[pid=17302] ppid=17300 vsize=1592 CPUtime=6.29
/proc/17302/stat : 17302 (march_ks) R 17300 17302 17029 0 -1 4194304 319 0 0 0 629 0 0 0 25 0 1 0 1134163504 1630208 302 1992294400 134512640 135019032 4294956240 18446744073709551615 134597488 0 0 4096 0 0 0 0 17 0 0 0
/proc/17302/statm: 398 302 73 123 0 273 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1592

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

[startup+7.1018 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 17303
/proc/meminfo: memFree=1512544/2055920 swapFree=4178796/4192956
[pid=17302] ppid=17300 vsize=1592 CPUtime=7.09
/proc/17302/stat : 17302 (march_ks) R 17300 17302 17029 0 -1 4194304 321 0 0 0 709 0 0 0 25 0 1 0 1134163504 1630208 304 1992294400 134512640 135019032 4294956240 18446744073709551615 134584966 0 0 4096 0 0 0 0 17 0 0 0
/proc/17302/statm: 398 304 73 123 0 273 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 1592

[startup+7.50184 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 17303
/proc/meminfo: memFree=1512544/2055920 swapFree=4178796/4192956
[pid=17302] ppid=17300 vsize=1592 CPUtime=7.49
/proc/17302/stat : 17302 (march_ks) R 17300 17302 17029 0 -1 4194304 323 0 0 0 749 0 0 0 25 0 1 0 1134163504 1630208 306 1992294400 134512640 135019032 4294956240 18446744073709551615 134579018 0 0 4096 0 0 0 0 17 0 0 0
/proc/17302/statm: 398 306 73 123 0 273 0
Current children cumulated CPU time (s) 7.49
Current children cumulated vsize (KiB) 1592

[startup+7.60185 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 17303
/proc/meminfo: memFree=1512544/2055920 swapFree=4178796/4192956
[pid=17302] ppid=17300 vsize=1592 CPUtime=7.6
/proc/17302/stat : 17302 (march_ks) R 17300 17302 17029 0 -1 4194304 324 0 0 0 760 0 0 0 25 0 1 0 1134163504 1630208 307 1992294400 134512640 135019032 4294956240 18446744073709551615 134538142 0 0 4096 0 0 0 0 17 0 0 0
/proc/17302/statm: 398 307 73 123 0 273 0
Current children cumulated CPU time (s) 7.6
Current children cumulated vsize (KiB) 1592

Child status: 10
Real time (s): 7.62083
CPU time (s): 7.61984
CPU user time (s): 7.61684
CPU system time (s): 0.002999
CPU usage (%): 99.987
Max. virtual memory (cumulated for all children) (KiB): 1592

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.61684
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= 325
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= 43

runsolver used 0.008998 second user time and 0.027995 second system time

The end

Launcher Data 

Begin job on node57 at 2009-04-01 21:43:37
IDJOB=1544948
IDBENCH=70701
IDSOLVER=559
FILE ID=node57/1544948-1238615017
PBS_JOBID= 9073588
Free space on /tmp= 66264 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-S1263695887-042.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1544948-1238615017/watcher-1544948-1238615017 -o /tmp/evaluation-result-1544948-1238615017/solver-1544948-1238615017 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1544948-1238615017.cnf            

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

MD5SUM BENCH= 6b9d9c25eec439b73e50a5fc031019ea
RANDOM SEED=571946580

node57.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		: 3000.213
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		: 3000.213
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:       1514192 kB
Buffers:         92584 kB
Cached:         353324 kB
SwapCached:       7992 kB
Active:         232260 kB
Inactive:       223172 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1514192 kB
SwapTotal:     4192956 kB
SwapFree:      4178796 kB
Dirty:            2904 kB
Writeback:           0 kB
Mapped:          15136 kB
Slab:            72404 kB
Committed_AS:  2794708 kB
PageTables:       1392 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= 66260 MiB
End job on node57 at 2009-04-01 21:43:45