Trace number 1518698

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
march_nn nnSAT 5.69513 5.69714

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 

0.00/0.02	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.02	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.02	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.02	c main()::
0.00/0.02	c initFormula():: searching for DIMACS p-line....
0.00/0.02	c initFormula():: the DIMACS p-line indicates a CNF of 440 variables and 1870 clauses.
0.00/0.02	c parseCNF():: parsing....
0.00/0.02	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.02	c runParser():: parsing was successful, warming up engines...
0.00/0.02	c simplify_formula():: removed 0 tautological, 15 satisfied and 0 duplicate clauses
0.00/0.02	c preprocessing fase I completed:: there are now 438 free variables and 1855 clauses.
0.00/0.02	c stat :: sign balance is biased by 0.511
0.00/0.02	c using 3-SAT heuristics (occurence based diff)
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 159 duplicate clauses
0.00/0.02	c resolvent_look() :: found 76 resolvents
0.00/0.02	c lessRedundantTransformation():: nothing to be done.
0.00/0.02	c transformTo3SAT():: you gave me 440 variables and 1931 clauses.
0.00/0.02	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.02	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.02	c transformTo3SAT():: the transformation yielded 440 variabels and 1931 clauses.
0.00/0.02	c main():: clause / variable ratio: ( 1931 / 440 ) = 4.39
0.00/0.02	c longest clause has size 3
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c number of free variables = 438
0.00/0.02	c dynamic_preselect_setsize :: off
0.00/0.02	c main():: all systems go!
0.00/0.02	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/999) NodeCount: 33
0.00/0.02	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 1/999) NodeCount: 484
0.09/0.15	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 |****************************************************************| ( 2/999) NodeCount: 4124
1.29/1.32	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 |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
5.59/5.69	c |00000001000000001000000001000000000000000000000000000$$$$$$$$$$|
5.59/5.69	
c |***************************************************************
5.59/5.69	c
5.59/5.69	c main():: nodeCount: 16312
5.59/5.69	c main():: dead ends in main: 92
5.59/5.69	c main():: lookAheadCount: 1170917
5.59/5.69	c main():: unitResolveCount: 106996
5.59/5.69	c main():: time=5.690000
5.59/5.69	c main():: necessary_assignments: 2099
5.59/5.69	c main():: bin_sat: 0, bin_unsat 0
5.59/5.69	c main():: doublelook: #: 37672, succes #: 17473
5.59/5.69	c main():: doublelook: overall 3.256 of all possible doublelooks executed
5.59/5.69	c main():: doublelook: succesrate: 46.382, average DL_trigger: 47.453
5.59/5.69	c main():: SOLUTION VERIFIED :-)
5.59/5.69	s SATISFIABLE
5.59/5.69	v -1 2 -3 -6 7 -9 -10 12 13 -14 15 16 18 -19 20 21 -22 -23 -24 25 -26 27 -30 31 -32 33 -34 35 -36 37 38 40 -41 42 -43 -44 -45 46 47 48 49 50 51 -52 -53 54 55 56 -58 59 -60 -61 -62 63 64 -65 -66 -67 68 -69 70 71 -72 73 -74 -76 -77 -78 -79 -80 -81 82 83 87 88 -89 90 -91 92 93 94 95 96 -97 -98 -99 100 -101 102 -103 105 -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 -175 178 -179 180 181 -182 -184 -185 -186 187 -188 189 -190 -191 192 -193 -194 195 196 197 198 -200 201 -202 203 -204 205 206 -207 208 209 210 -212 -213 -214 215 -216 -217 218 -219 -220 221 222 -223 224 225 226 -227 -228 229 230 -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 -268 270 -271 272 273 -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 -318 320 321 -322 323 -324 -325 326 327 -328 -329 -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 -378 379 381 382 383 -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 -421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 437 -438 -439 -440 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1518698-1238302984/watcher-1518698-1238302984 -o /tmp/evaluation-result-1518698-1238302984/solver-1518698-1238302984 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1518698-1238302984.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: 0.99 0.97 0.99 3/64 20703
/proc/meminfo: memFree=831864/2055920 swapFree=4176996/4192956
[pid=20703] ppid=20701 vsize=976 CPUtime=0
/proc/20703/stat : 20703 (march_nn) R 20701 20703 20460 0 -1 4194304 142 0 0 0 0 0 0 0 18 0 1 0 1102960487 999424 125 1992294400 134512640 135197250 4294956240 18446744073709551615 134565317 0 0 4096 0 0 0 0 17 1 0 0
/proc/20703/statm: 244 125 66 167 0 75 0

[startup+0.0694211 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 20703
/proc/meminfo: memFree=831864/2055920 swapFree=4176996/4192956
[pid=20703] ppid=20701 vsize=1656 CPUtime=0.06
/proc/20703/stat : 20703 (march_nn) R 20701 20703 20460 0 -1 4194304 268 0 0 0 6 0 0 0 18 0 1 0 1102960487 1695744 251 1992294400 134512640 135197250 4294956240 18446744073709551615 134542109 0 0 4096 0 0 0 0 17 1 0 0
/proc/20703/statm: 414 251 93 167 0 245 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1656

[startup+0.101423 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 20703
/proc/meminfo: memFree=831864/2055920 swapFree=4176996/4192956
[pid=20703] ppid=20701 vsize=1656 CPUtime=0.09
/proc/20703/stat : 20703 (march_nn) R 20701 20703 20460 0 -1 4194304 273 0 0 0 9 0 0 0 18 0 1 0 1102960487 1695744 256 1992294400 134512640 135197250 4294956240 18446744073709551615 134539253 0 0 4096 0 0 0 0 17 1 0 0
/proc/20703/statm: 414 256 93 167 0 245 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1656

[startup+0.301441 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 20703
/proc/meminfo: memFree=831864/2055920 swapFree=4176996/4192956
[pid=20703] ppid=20701 vsize=1792 CPUtime=0.29
/proc/20703/stat : 20703 (march_nn) R 20701 20703 20460 0 -1 4194304 291 0 0 0 29 0 0 0 19 0 1 0 1102960487 1835008 274 1992294400 134512640 135197250 4294956240 18446744073709551615 134552743 0 0 4096 0 0 0 0 17 1 0 0
/proc/20703/statm: 448 274 93 167 0 279 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1792

[startup+0.701476 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 20703
/proc/meminfo: memFree=831864/2055920 swapFree=4176996/4192956
[pid=20703] ppid=20701 vsize=1792 CPUtime=0.69
/proc/20703/stat : 20703 (march_nn) R 20701 20703 20460 0 -1 4194304 306 0 0 0 69 0 0 0 22 0 1 0 1102960487 1835008 289 1992294400 134512640 135197250 4294956240 18446744073709551615 134552435 0 0 4096 0 0 0 0 17 1 0 0
/proc/20703/statm: 448 289 93 167 0 279 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1792

[startup+1.50155 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 20704
/proc/meminfo: memFree=830960/2055920 swapFree=4176996/4192956
[pid=20703] ppid=20701 vsize=2080 CPUtime=1.49
/proc/20703/stat : 20703 (march_nn) R 20701 20703 20460 0 -1 4194304 356 0 0 0 149 0 0 0 25 0 1 0 1102960487 2129920 339 1992294400 134512640 135197250 4294956240 18446744073709551615 134548478 0 0 4096 0 0 0 0 17 1 0 0
/proc/20703/statm: 520 339 93 167 0 351 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2080

[startup+3.10169 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 20704
/proc/meminfo: memFree=830640/2055920 swapFree=4176996/4192956
[pid=20703] ppid=20701 vsize=2248 CPUtime=3.09
/proc/20703/stat : 20703 (march_nn) R 20701 20703 20460 0 -1 4194304 384 0 0 0 309 0 0 0 25 0 1 0 1102960487 2301952 367 1992294400 134512640 135197250 4294956240 18446744073709551615 134596835 0 0 4096 0 0 0 0 17 1 0 0
/proc/20703/statm: 562 367 93 167 0 393 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2248

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

[startup+4.70183 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 20704
/proc/meminfo: memFree=830448/2055920 swapFree=4176996/4192956
[pid=20703] ppid=20701 vsize=2400 CPUtime=4.69
/proc/20703/stat : 20703 (march_nn) R 20701 20703 20460 0 -1 4194304 424 0 0 0 469 0 0 0 25 0 1 0 1102960487 2457600 407 1992294400 134512640 135197250 4294956240 18446744073709551615 134539156 0 0 4096 0 0 0 0 17 1 0 0
/proc/20703/statm: 600 407 93 167 0 431 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 2400

[startup+5.10186 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 20704
/proc/meminfo: memFree=830448/2055920 swapFree=4176996/4192956
[pid=20703] ppid=20701 vsize=2400 CPUtime=5.09
/proc/20703/stat : 20703 (march_nn) R 20701 20703 20460 0 -1 4194304 431 0 0 0 509 0 0 0 25 0 1 0 1102960487 2457600 414 1992294400 134512640 135197250 4294956240 18446744073709551615 134570760 0 0 4096 0 0 0 0 17 1 0 0
/proc/20703/statm: 600 414 93 167 0 431 0
Current children cumulated CPU time (s) 5.09
Current children cumulated vsize (KiB) 2400

[startup+5.5059 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 20704
/proc/meminfo: memFree=830320/2055920 swapFree=4176996/4192956
[pid=20703] ppid=20701 vsize=2400 CPUtime=5.5
/proc/20703/stat : 20703 (march_nn) R 20701 20703 20460 0 -1 4194304 439 0 0 0 550 0 0 0 25 0 1 0 1102960487 2457600 422 1992294400 134512640 135197250 4294956240 18446744073709551615 134618746 0 0 4096 0 0 0 0 17 1 0 0
/proc/20703/statm: 600 422 93 167 0 431 0
Current children cumulated CPU time (s) 5.5
Current children cumulated vsize (KiB) 2400

[startup+5.6019 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 20704
/proc/meminfo: memFree=830320/2055920 swapFree=4176996/4192956
[pid=20703] ppid=20701 vsize=2400 CPUtime=5.59
/proc/20703/stat : 20703 (march_nn) R 20701 20703 20460 0 -1 4194304 442 0 0 0 559 0 0 0 25 0 1 0 1102960487 2457600 425 1992294400 134512640 135197250 4294956240 18446744073709551615 134556344 0 0 4096 0 0 0 0 17 1 0 0
/proc/20703/statm: 600 425 93 167 0 431 0
Current children cumulated CPU time (s) 5.59
Current children cumulated vsize (KiB) 2400

Child status: 10
Real time (s): 5.69714
CPU time (s): 5.69513
CPU user time (s): 5.69313
CPU system time (s): 0.001999
CPU usage (%): 99.9648
Max. virtual memory (cumulated for all children) (KiB): 2400

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.69313
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= 458
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= 9

runsolver used 0.008998 second user time and 0.020996 second system time

The end

Launcher Data 

Begin job on node50 at 2009-03-29 07:03:04
IDJOB=1518698
IDBENCH=70701
IDSOLVER=522
FILE ID=node50/1518698-1238302984
PBS_JOBID= 9061052
Free space on /tmp= 64180 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/440/unif-k3-r4.25-v440-c1870-S1263695887-042.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1518698-1238302984/watcher-1518698-1238302984 -o /tmp/evaluation-result-1518698-1238302984/solver-1518698-1238302984 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1518698-1238302984.cnf

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

MD5SUM BENCH= 6b9d9c25eec439b73e50a5fc031019ea
RANDOM SEED=2136790757

node50.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		: 3000.238
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		: 3000.238
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:        832280 kB
Buffers:         91316 kB
Cached:        1037424 kB
SwapCached:       9920 kB
Active:         218440 kB
Inactive:       921944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        832280 kB
SwapTotal:     4192956 kB
SwapFree:      4176996 kB
Dirty:             964 kB
Writeback:           0 kB
Mapped:          17260 kB
Slab:            69260 kB
Committed_AS:  2970124 kB
PageTables:       1456 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= 64180 MiB
End job on node50 at 2009-03-29 07:03:09