Trace number 371740

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, and are wall clock time (not CPU 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
March KS 2007-02-08SAT 7.01793 7.02119

General information on the benchmark

Namerandom/OnTreshold/3SAT/v450/
unif-k3-r4.25-v450-c1912-S1279599478-02.SAT.shuffled.cnf
MD5SUMb403a40368f0561878d5cbdd78a87179
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.009997
Satisfiable
(Un)Satisfiability was proved
Number of variables450
Number of clauses1912
Sum of the clauses size5736
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31912
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

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 450 variables and 1912 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, 8 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 449 free variables and 1904 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.528
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 170 duplicate clauses
0.00/0.01	c resolvent_look() :: found 95 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 450 variables and 1999 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 450 variabels and 1999 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1999 / 450 ) = 4.44
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: 150 JD: 25
0.05/0.09	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: 2772 JD: 25
1.49/1.50	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 |***************************************************************
6.99/7.01	c solution bin :: 0000000000000001000000010.0110000
6.99/7.01	c direction branchin :: current_rights = 5
6.99/7.01	
c |***************************************************************
6.99/7.01	c
6.99/7.01	c main():: nodeCount: 13295
6.99/7.01	c main():: dead ends in main: 310
6.99/7.01	c main():: lookAheadCount: 1053653
6.99/7.01	c main():: unitResolveCount: 177287
6.99/7.01	c main():: time=7.010000
6.99/7.01	c main():: necessary_assignments: 4066
6.99/7.01	c main():: bin_sat: 0, bin_unsat 0
6.99/7.01	c main():: doublelook: #: 53191, succes #: 38539
6.99/7.01	c main():: doublelook: overall 5.213 of all possible doublelooks executed
6.99/7.01	c main():: doublelook: succesrate: 72.454, average DL_trigger: 6902.901
6.99/7.01	c main():: SOLUTION VERIFIED :-)
6.99/7.01	s SATISFIABLE
6.99/7.01	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 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node3/watcher-371740-1177545251 -o ROOT/results/node3/solver-371740-1177545251 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371740-1177545251/march_ks /tmp/evaluation/371740-1177545251/instance-371740-1177545251.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): 7500 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: 0.00 0.03 0.18 3/77 15306
/proc/meminfo: memFree=1677664/2055920 swapFree=4138796/4192956
[pid=15306] ppid=15304 vsize=800 CPUtime=0
/proc/15306/stat : 15306 (march_ks) R 15304 15306 15252 0 -1 4194304 126 0 0 0 0 0 0 0 18 0 1 0 230562931 819200 109 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134561687 0 0 4096 0 0 0 0 17 1 0 0
/proc/15306/statm: 200 109 50 123 0 75 0

[startup+0.0533329 s]
/proc/loadavg: 0.00 0.03 0.18 3/77 15306
/proc/meminfo: memFree=1677664/2055920 swapFree=4138796/4192956
[pid=15306] ppid=15304 vsize=1200 CPUtime=0.05
/proc/15306/stat : 15306 (march_ks) R 15304 15306 15252 0 -1 4194304 253 0 0 0 5 0 0 0 18 0 1 0 230562931 1228800 236 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134542609 0 0 4096 0 0 0 0 17 1 0 0
/proc/15306/statm: 300 236 73 123 0 175 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1200

[startup+0.10134 s]
/proc/loadavg: 0.00 0.03 0.18 3/77 15306
/proc/meminfo: memFree=1677664/2055920 swapFree=4138796/4192956
[pid=15306] ppid=15304 vsize=1332 CPUtime=0.09
/proc/15306/stat : 15306 (march_ks) R 15304 15306 15252 0 -1 4194304 261 0 0 0 9 0 0 0 18 0 1 0 230562931 1363968 244 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134538257 0 0 4096 0 0 0 0 17 1 0 0
/proc/15306/statm: 333 244 73 123 0 208 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1332

[startup+0.301372 s]
/proc/loadavg: 0.00 0.03 0.18 3/77 15306
/proc/meminfo: memFree=1677664/2055920 swapFree=4138796/4192956
[pid=15306] ppid=15304 vsize=1332 CPUtime=0.29
/proc/15306/stat : 15306 (march_ks) R 15304 15306 15252 0 -1 4194304 273 0 0 0 29 0 0 0 19 0 1 0 230562931 1363968 256 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134542401 0 0 4096 0 0 0 0 17 1 0 0
/proc/15306/statm: 333 256 73 123 0 208 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1332

[startup+0.701437 s]
/proc/loadavg: 0.00 0.03 0.18 3/77 15306
/proc/meminfo: memFree=1677664/2055920 swapFree=4138796/4192956
[pid=15306] ppid=15304 vsize=1332 CPUtime=0.69
/proc/15306/stat : 15306 (march_ks) R 15304 15306 15252 0 -1 4194304 282 0 0 0 69 0 0 0 23 0 1 0 230562931 1363968 265 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134579433 0 0 4096 0 0 0 0 17 1 0 0
/proc/15306/statm: 333 265 73 123 0 208 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1332

[startup+1.50157 s]
/proc/loadavg: 0.08 0.04 0.19 2/78 15307
/proc/meminfo: memFree=1676888/2055920 swapFree=4138796/4192956
[pid=15306] ppid=15304 vsize=1464 CPUtime=1.49
/proc/15306/stat : 15306 (march_ks) R 15304 15306 15252 0 -1 4194304 291 0 0 0 149 0 0 0 25 0 1 0 230562931 1499136 274 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134564344 0 0 4096 0 0 0 0 17 1 0 0
/proc/15306/statm: 366 274 73 123 0 241 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1464

[startup+3.10183 s]
/proc/loadavg: 0.08 0.04 0.19 2/78 15307
/proc/meminfo: memFree=1676696/2055920 swapFree=4138796/4192956
[pid=15306] ppid=15304 vsize=1464 CPUtime=3.09
/proc/15306/stat : 15306 (march_ks) R 15304 15306 15252 0 -1 4194304 306 0 0 0 309 0 0 0 25 0 1 0 230562931 1499136 289 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134548001 0 0 4096 0 0 0 0 17 1 0 0
/proc/15306/statm: 366 289 73 123 0 241 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1464

[startup+6.30135 s]
/proc/loadavg: 0.08 0.04 0.19 2/78 15307
/proc/meminfo: memFree=1676568/2055920 swapFree=4138796/4192956
[pid=15306] ppid=15304 vsize=1620 CPUtime=6.29
/proc/15306/stat : 15306 (march_ks) R 15304 15306 15252 0 -1 4194304 327 0 0 0 629 0 0 0 25 0 1 0 230562931 1658880 310 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134526537 0 0 4096 0 0 0 0 17 1 0 0
/proc/15306/statm: 405 310 73 123 0 280 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1620

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

[startup+6.70141 s]
/proc/loadavg: 0.15 0.06 0.19 2/78 15307
/proc/meminfo: memFree=1676504/2055920 swapFree=4138796/4192956
[pid=15306] ppid=15304 vsize=1620 CPUtime=6.69
/proc/15306/stat : 15306 (march_ks) R 15304 15306 15252 0 -1 4194304 328 0 0 0 669 0 0 0 25 0 1 0 230562931 1658880 311 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134564801 0 0 4096 0 0 0 0 17 1 0 0
/proc/15306/statm: 405 311 73 123 0 280 0
Current children cumulated CPU time (s) 6.69
Current children cumulated vsize (KiB) 1620

[startup+6.90145 s]
/proc/loadavg: 0.15 0.06 0.19 2/78 15307
/proc/meminfo: memFree=1676504/2055920 swapFree=4138796/4192956
[pid=15306] ppid=15304 vsize=1620 CPUtime=6.89
/proc/15306/stat : 15306 (march_ks) R 15304 15306 15252 0 -1 4194304 328 0 0 0 689 0 0 0 25 0 1 0 230562931 1658880 311 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134526454 0 0 4096 0 0 0 0 17 1 0 0
/proc/15306/statm: 405 311 73 123 0 280 0
Current children cumulated CPU time (s) 6.89
Current children cumulated vsize (KiB) 1620

[startup+7.00146 s]
/proc/loadavg: 0.15 0.06 0.19 2/78 15307
/proc/meminfo: memFree=1676504/2055920 swapFree=4138796/4192956
[pid=15306] ppid=15304 vsize=1620 CPUtime=6.99
/proc/15306/stat : 15306 (march_ks) R 15304 15306 15252 0 -1 4194304 328 0 0 0 699 0 0 0 25 0 1 0 230562931 1658880 311 18446744073709551615 134512640 135019032 4294956672 18446744073709551615 134538152 0 0 4096 0 0 0 0 17 1 0 0
/proc/15306/statm: 405 311 73 123 0 280 0
Current children cumulated CPU time (s) 6.99
Current children cumulated vsize (KiB) 1620

Child status: 10
Real time (s): 7.02119
CPU time (s): 7.01793
CPU user time (s): 7.00993
CPU system time (s): 0.007998
CPU usage (%): 99.9537
Max. virtual memory (cumulated for all children) (KiB): 1620

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.00993
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 329
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= 8
involuntary context switches= 6

runsolver used 0.008998 second user time and 0.025996 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Wed Apr 25 23:54:12 UTC 2007

IDJOB= 371740
IDBENCH= 19976
IDSOLVER= 180
FILE ID= node3/371740-1177545251

PBS_JOBID= 4696364

Free space on /tmp= 66419 MiB

SOLVER NAME= March KS 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v450/unif-k3-r4.25-v450-c1912-S1279599478-02.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/371740-1177545251/march_ks /tmp/evaluation/371740-1177545251/instance-371740-1177545251.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-371740-1177545251 -o ROOT/results/node3/solver-371740-1177545251 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371740-1177545251/march_ks /tmp/evaluation/371740-1177545251/instance-371740-1177545251.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  b403a40368f0561878d5cbdd78a87179

RANDOM SEED= 149462064

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node3.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.270
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		: 3000.270
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:       1678136 kB
Buffers:         44076 kB
Cached:         266508 kB
SwapCached:      17720 kB
Active:         132984 kB
Inactive:       201216 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1678136 kB
SwapTotal:     4192956 kB
SwapFree:      4138796 kB
Dirty:            2300 kB
Writeback:           0 kB
Mapped:          29592 kB
Slab:            29092 kB
Committed_AS:  6129936 kB
PageTables:       1780 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= 66419 MiB

End job on node3 on Wed Apr 25 23:54:19 UTC 2007