Trace number 1627011

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 7.84981 7.85367

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S1041106011-094.cnf
MD5SUM5d7bd014f243a8ba433df6a7b547cbaa
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.022995
Satisfiable
(Un)Satisfiability was proved
Number of variables380
Number of clauses1615
Sum of the clauses size4845
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31615
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 380 variables and 1615 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, 0 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 380 free variables and 1615 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.447
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 203 duplicate clauses
0.00/0.01	c resolvent_look() :: found 122 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1737 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 380 variabels and 1737 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1737 / 380 ) = 4.57
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: 113 JD: 12
0.04/0.05	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: 1930 JD: 12
0.80/0.85	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: 9323 JD: 12
4.09/4.12	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 |*********************************************
7.79/7.85	c solution bin :: 010010000100.00000000001000000000
7.79/7.85	c direction branchin :: current_rights = 4
7.79/7.85	
c |*********************************************
7.79/7.85	c
7.79/7.85	c main():: nodeCount: 17967
7.79/7.85	c main():: dead ends in main: 595
7.79/7.85	c main():: lookAheadCount: 1219738
7.79/7.85	c main():: unitResolveCount: 224733
7.79/7.85	c main():: time=7.850000
7.79/7.85	c main():: necessary_assignments: 4422
7.79/7.85	c main():: bin_sat: 0, bin_unsat 0
7.79/7.85	c main():: doublelook: #: 74793, succes #: 56002
7.79/7.85	c main():: doublelook: overall 6.373 of all possible doublelooks executed
7.79/7.85	c main():: doublelook: succesrate: 74.876, average DL_trigger: 6568.370
7.79/7.85	c main():: SOLUTION VERIFIED :-)
7.79/7.85	s SATISFIABLE
7.79/7.85	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 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-1627011-1240142350/watcher-1627011-1240142350 -o /tmp/evaluation-result-1627011-1240142350/solver-1627011-1240142350 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1627011-1240142350.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: 0.91 0.97 0.99 3/64 25417
/proc/meminfo: memFree=1241872/2055920 swapFree=4192956/4192956
[pid=25417] ppid=25415 vsize=792 CPUtime=0
/proc/25417/stat : 25417 (march_ks) R 25415 25417 24622 0 -1 4194304 133 0 0 0 0 0 0 0 18 0 1 0 42268551 811008 116 1992294400 134512640 135019032 4294956240 18446744073709551615 134520831 0 0 4096 0 0 0 0 17 0 0 0
/proc/25417/statm: 198 116 63 123 0 73 0

[startup+0.0500809 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 25417
/proc/meminfo: memFree=1241872/2055920 swapFree=4192956/4192956
[pid=25417] ppid=25415 vsize=1188 CPUtime=0.04
/proc/25417/stat : 25417 (march_ks) R 25415 25417 24622 0 -1 4194304 232 0 0 0 4 0 0 0 18 0 1 0 42268551 1216512 215 1992294400 134512640 135019032 4294956240 18446744073709551615 134597843 0 0 4096 0 0 0 0 17 0 0 0
/proc/25417/statm: 297 215 73 123 0 172 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1188

[startup+0.101087 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 25417
/proc/meminfo: memFree=1241872/2055920 swapFree=4192956/4192956
[pid=25417] ppid=25415 vsize=1188 CPUtime=0.1
/proc/25417/stat : 25417 (march_ks) R 25415 25417 24622 0 -1 4194304 238 0 0 0 10 0 0 0 18 0 1 0 42268551 1216512 221 1992294400 134512640 135019032 4294956240 18446744073709551615 134538139 0 0 4096 0 0 0 0 17 0 0 0
/proc/25417/statm: 297 221 73 123 0 172 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1188

[startup+0.301107 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 25417
/proc/meminfo: memFree=1241872/2055920 swapFree=4192956/4192956
[pid=25417] ppid=25415 vsize=1188 CPUtime=0.3
/proc/25417/stat : 25417 (march_ks) R 25415 25417 24622 0 -1 4194304 249 0 0 0 30 0 0 0 19 0 1 0 42268551 1216512 232 1992294400 134512640 135019032 4294956240 18446744073709551615 134526537 0 0 4096 0 0 0 0 17 0 0 0
/proc/25417/statm: 297 232 73 123 0 172 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1188

[startup+0.701147 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 25417
/proc/meminfo: memFree=1241872/2055920 swapFree=4192956/4192956
[pid=25417] ppid=25415 vsize=1320 CPUtime=0.7
/proc/25417/stat : 25417 (march_ks) R 25415 25417 24622 0 -1 4194304 257 0 0 0 70 0 0 0 23 0 1 0 42268551 1351680 240 1992294400 134512640 135019032 4294956240 18446744073709551615 134542776 0 0 4096 0 0 0 0 17 0 0 0
/proc/25417/statm: 330 240 73 123 0 205 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1320

[startup+1.50223 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 25418
/proc/meminfo: memFree=1241160/2055920 swapFree=4192956/4192956
[pid=25417] ppid=25415 vsize=1320 CPUtime=1.5
/proc/25417/stat : 25417 (march_ks) R 25415 25417 24622 0 -1 4194304 263 0 0 0 150 0 0 0 25 0 1 0 42268551 1351680 246 1992294400 134512640 135019032 4294956240 18446744073709551615 134526501 0 0 4096 0 0 0 0 17 0 0 0
/proc/25417/statm: 330 246 73 123 0 205 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1320

[startup+3.10139 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 25418
/proc/meminfo: memFree=1241032/2055920 swapFree=4192956/4192956
[pid=25417] ppid=25415 vsize=1320 CPUtime=3.09
/proc/25417/stat : 25417 (march_ks) R 25415 25417 24622 0 -1 4194304 272 0 0 0 309 0 0 0 25 0 1 0 42268551 1351680 255 1992294400 134512640 135019032 4294956240 18446744073709551615 134538152 0 0 4096 0 0 0 0 17 0 0 0
/proc/25417/statm: 330 255 73 123 0 205 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1320

[startup+6.30172 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 25418
/proc/meminfo: memFree=1240984/2055920 swapFree=4192956/4192956
[pid=25417] ppid=25415 vsize=1320 CPUtime=6.29
/proc/25417/stat : 25417 (march_ks) R 25415 25417 24622 0 -1 4194304 279 0 0 0 629 0 0 0 25 0 1 0 42268551 1351680 262 1992294400 134512640 135019032 4294956240 18446744073709551615 134538186 0 0 4096 0 0 0 0 17 0 0 0
/proc/25417/statm: 330 262 73 123 0 205 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1320

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

[startup+7.1018 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 25418
/proc/meminfo: memFree=1240984/2055920 swapFree=4192956/4192956
[pid=25417] ppid=25415 vsize=1320 CPUtime=7.09
/proc/25417/stat : 25417 (march_ks) R 25415 25417 24622 0 -1 4194304 280 0 0 0 709 0 0 0 25 0 1 0 42268551 1351680 263 1992294400 134512640 135019032 4294956240 18446744073709551615 134538194 0 0 4096 0 0 0 0 17 0 0 0
/proc/25417/statm: 330 263 73 123 0 205 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 1320

[startup+7.50184 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 25418
/proc/meminfo: memFree=1240984/2055920 swapFree=4192956/4192956
[pid=25417] ppid=25415 vsize=1320 CPUtime=7.49
/proc/25417/stat : 25417 (march_ks) R 25415 25417 24622 0 -1 4194304 286 0 0 0 749 0 0 0 25 0 1 0 42268551 1351680 269 1992294400 134512640 135019032 4294956240 18446744073709551615 134538186 0 0 4096 0 0 0 0 17 0 0 0
/proc/25417/statm: 330 269 73 123 0 205 0
Current children cumulated CPU time (s) 7.49
Current children cumulated vsize (KiB) 1320

[startup+7.70587 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 25418
/proc/meminfo: memFree=1240984/2055920 swapFree=4192956/4192956
[pid=25417] ppid=25415 vsize=1320 CPUtime=7.7
/proc/25417/stat : 25417 (march_ks) R 25415 25417 24622 0 -1 4194304 286 0 0 0 770 0 0 0 25 0 1 0 42268551 1351680 269 1992294400 134512640 135019032 4294956240 18446744073709551615 134538617 0 0 4096 0 0 0 0 17 0 0 0
/proc/25417/statm: 330 269 73 123 0 205 0
Current children cumulated CPU time (s) 7.7
Current children cumulated vsize (KiB) 1320

[startup+7.80188 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 25418
/proc/meminfo: memFree=1240984/2055920 swapFree=4192956/4192956
[pid=25417] ppid=25415 vsize=1320 CPUtime=7.79
/proc/25417/stat : 25417 (march_ks) R 25415 25417 24622 0 -1 4194304 286 0 0 0 779 0 0 0 25 0 1 0 42268551 1351680 269 1992294400 134512640 135019032 4294956240 18446744073709551615 134538186 0 0 4096 0 0 0 0 17 0 0 0
/proc/25417/statm: 330 269 73 123 0 205 0
Current children cumulated CPU time (s) 7.79
Current children cumulated vsize (KiB) 1320

Child status: 10
Real time (s): 7.85367
CPU time (s): 7.84981
CPU user time (s): 7.84981
CPU system time (s): 0
CPU usage (%): 99.9508
Max. virtual memory (cumulated for all children) (KiB): 1320

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.84981
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 287
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= 25

runsolver used 0.005999 second user time and 0.032994 second system time

The end

Launcher Data 

Begin job on node24 at 2009-04-19 13:59:10
IDJOB=1627011
IDBENCH=70740
IDSOLVER=582
FILE ID=node24/1627011-1240142350
PBS_JOBID= 9159270
Free space on /tmp= 66412 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S1041106011-094.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1627011-1240142350/watcher-1627011-1240142350 -o /tmp/evaluation-result-1627011-1240142350/solver-1627011-1240142350 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1627011-1240142350.cnf            

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

MD5SUM BENCH= 5d7bd014f243a8ba433df6a7b547cbaa
RANDOM SEED=871908426

node24.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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1242352 kB
Buffers:         95064 kB
Cached:         617576 kB
SwapCached:          0 kB
Active:         307832 kB
Inactive:       419124 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1242352 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            3716 kB
Writeback:           0 kB
Mapped:          24116 kB
Slab:            72540 kB
Committed_AS:   172548 kB
PageTables:       1440 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= 66408 MiB
End job on node24 at 2009-04-19 13:59:18