Trace number 1518266

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 5.49616 5.49934

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/420/
unif-k3-r4.25-v420-c1785-S1362286908-061.cnf
MD5SUM647005b2285214f4136823936a28bcc9
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014997
Satisfiable
(Un)Satisfiability was proved
Number of variables420
Number of clauses1785
Sum of the clauses size5355
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31785
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) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
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 420 variables and 1785 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, 7 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 419 free variables and 1778 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.469
0.00/0.01	c using 3-SAT heuristics (occurence based diff)
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 157 duplicate clauses
0.00/0.02	c resolvent_look() :: found 80 resolvents
0.00/0.02	c lessRedundantTransformation():: nothing to be done.
0.00/0.02	c transformTo3SAT():: you gave me 420 variables and 1858 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 420 variabels and 1858 clauses.
0.00/0.02	c main():: clause / variable ratio: ( 1858 / 420 ) = 4.42
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 = 419
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: 438
0.09/0.14	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: 3343
1.10/1.11	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 |***************************************************************
5.40/5.49	c |0000000001000000000000011000000000$$$$$$$$$$$$$$$$$$$$$$$$$$$$$|
5.40/5.49	
c |***************************************************************
5.40/5.49	c
5.40/5.49	c main():: nodeCount: 15050
5.40/5.49	c main():: dead ends in main: 133
5.40/5.49	c main():: lookAheadCount: 1098860
5.40/5.49	c main():: unitResolveCount: 115090
5.40/5.49	c main():: time=5.490000
5.40/5.49	c main():: necessary_assignments: 2649
5.40/5.49	c main():: bin_sat: 0, bin_unsat 0
5.40/5.49	c main():: doublelook: #: 37170, succes #: 18262
5.40/5.49	c main():: doublelook: overall 3.430 of all possible doublelooks executed
5.40/5.49	c main():: doublelook: succesrate: 49.131, average DL_trigger: 45.806
5.40/5.49	c main():: SOLUTION VERIFIED :-)
5.40/5.49	s SATISFIABLE
5.40/5.49	v 1 2 3 4 5 7 8 -9 -10 -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 -54 55 56 -57 58 -59 -60 -61 62 -63 -64 65 67 68 -69 70 71 72 73 75 -76 -77 78 -79 -80 -81 -83 -84 -85 -86 87 -88 -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 -145 -146 148 -149 -150 152 -154 -155 -156 -157 158 -159 -160 161 -162 164 -165 -166 167 -168 -169 -171 172 -173 174 175 176 -177 -178 179 180 181 182 -183 184 -185 -186 187 188 -189 -190 -191 -192 -194 -195 -196 -197 -198 -199 -200 201 202 -203 -204 -205 206 -207 -208 209 -210 -211 -212 -213 -214 215 -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 -276 277 -278 279 -280 -281 282 -283 -284 285 -286 287 288 -289 -290 -291 292 293 -294 -295 296 -297 -298 299 -301 -302 -303 -304 -305 -306 308 -309 -310 -311 312 313 314 315 316 -317 318 319 320 -321 -322 -323 324 325 326 327 328 330 331 -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 -373 375 -376 377 -378 -379 -380 -381 -382 383 384 -385 -386 387 -388 389 -390 -392 393 394 395 396 -397 -398 -399 -400 -401 -402 403 404 -405 406 -407 408 -409 -410 411 -412 413 415 -416 417 -418 419 420 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-1518266-1238297572/watcher-1518266-1238297572 -o /tmp/evaluation-result-1518266-1238297572/solver-1518266-1238297572 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1518266-1238297572.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 2/72 331
/proc/meminfo: memFree=1139912/2055920 swapFree=4175896/4192956
[pid=331] ppid=329 vsize=984 CPUtime=0
/proc/331/stat : 331 (march_nn) R 329 331 29266 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 1102418455 1007616 124 1992294400 134512640 135197250 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/331/statm: 246 124 67 167 0 77 0

[startup+0.0746009 s]
/proc/loadavg: 0.99 0.97 0.99 2/72 331
/proc/meminfo: memFree=1139912/2055920 swapFree=4175896/4192956
[pid=331] ppid=329 vsize=1580 CPUtime=0.07
/proc/331/stat : 331 (march_nn) R 329 331 29266 0 -1 4194304 265 0 0 0 7 0 0 0 18 0 1 0 1102418455 1617920 248 1992294400 134512640 135197250 4294956240 18446744073709551615 134713087 0 0 4096 0 0 0 0 17 1 0 0
/proc/331/statm: 395 248 93 167 0 226 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1580

[startup+0.101608 s]
/proc/loadavg: 0.99 0.97 0.99 2/72 331
/proc/meminfo: memFree=1139912/2055920 swapFree=4175896/4192956
[pid=331] ppid=329 vsize=1580 CPUtime=0.09
/proc/331/stat : 331 (march_nn) R 329 331 29266 0 -1 4194304 268 0 0 0 9 0 0 0 18 0 1 0 1102418455 1617920 251 1992294400 134512640 135197250 4294956240 18446744073709551615 134539373 0 0 4096 0 0 0 0 17 1 0 0
/proc/331/statm: 395 251 93 167 0 226 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1580

[startup+0.301646 s]
/proc/loadavg: 0.99 0.97 0.99 2/72 331
/proc/meminfo: memFree=1139912/2055920 swapFree=4175896/4192956
[pid=331] ppid=329 vsize=1728 CPUtime=0.29
/proc/331/stat : 331 (march_nn) R 329 331 29266 0 -1 4194304 283 0 0 0 29 0 0 0 19 0 1 0 1102418455 1769472 266 1992294400 134512640 135197250 4294956240 18446744073709551615 134552518 0 0 4096 0 0 0 0 17 1 0 0
/proc/331/statm: 432 266 93 167 0 263 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1728

[startup+0.701725 s]
/proc/loadavg: 0.99 0.97 0.99 2/72 331
/proc/meminfo: memFree=1139912/2055920 swapFree=4175896/4192956
[pid=331] ppid=329 vsize=1728 CPUtime=0.69
/proc/331/stat : 331 (march_nn) R 329 331 29266 0 -1 4194304 300 0 0 0 69 0 0 0 23 0 1 0 1102418455 1769472 283 1992294400 134512640 135197250 4294956240 18446744073709551615 134552735 0 0 4096 0 0 0 0 17 1 0 0
/proc/331/statm: 432 283 93 167 0 263 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1728

[startup+1.50188 s]
/proc/loadavg: 0.99 0.97 0.99 2/73 332
/proc/meminfo: memFree=1139008/2055920 swapFree=4175896/4192956
[pid=331] ppid=329 vsize=1932 CPUtime=1.49
/proc/331/stat : 331 (march_nn) R 329 331 29266 0 -1 4194304 341 0 0 0 149 0 0 0 25 0 1 0 1102418455 1978368 324 1992294400 134512640 135197250 4294956240 18446744073709551615 134542058 0 0 4096 0 0 0 0 17 1 0 0
/proc/331/statm: 483 324 93 167 0 314 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1932

[startup+3.1012 s]
/proc/loadavg: 0.99 0.97 0.99 2/73 332
/proc/meminfo: memFree=1138624/2055920 swapFree=4175896/4192956
[pid=331] ppid=329 vsize=2220 CPUtime=3.09
/proc/331/stat : 331 (march_nn) R 329 331 29266 0 -1 4194304 405 0 0 0 309 0 0 0 25 0 1 0 1102418455 2273280 388 1992294400 134512640 135197250 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 1 0 0
/proc/331/statm: 555 388 93 167 0 386 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2220

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

[startup+4.70251 s]
/proc/loadavg: 0.99 0.97 0.99 2/73 332
/proc/meminfo: memFree=1138432/2055920 swapFree=4175896/4192956
[pid=331] ppid=329 vsize=2372 CPUtime=4.69
/proc/331/stat : 331 (march_nn) R 329 331 29266 0 -1 4194304 430 0 0 0 469 0 0 0 25 0 1 0 1102418455 2428928 413 1992294400 134512640 135197250 4294956240 18446744073709551615 134552737 0 0 4096 0 0 0 0 17 1 0 0
/proc/331/statm: 593 413 93 167 0 424 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 2372

[startup+5.10159 s]
/proc/loadavg: 0.99 0.97 0.99 2/73 332
/proc/meminfo: memFree=1138432/2055920 swapFree=4175896/4192956
[pid=331] ppid=329 vsize=2372 CPUtime=5.09
/proc/331/stat : 331 (march_nn) R 329 331 29266 0 -1 4194304 436 0 0 0 509 0 0 0 25 0 1 0 1102418455 2428928 419 1992294400 134512640 135197250 4294956240 18446744073709551615 134542058 0 0 4096 0 0 0 0 17 1 0 0
/proc/331/statm: 593 419 93 167 0 424 0
Current children cumulated CPU time (s) 5.09
Current children cumulated vsize (KiB) 2372

[startup+5.30163 s]
/proc/loadavg: 0.99 0.97 0.99 2/73 332
/proc/meminfo: memFree=1138432/2055920 swapFree=4175896/4192956
[pid=331] ppid=329 vsize=2552 CPUtime=5.29
/proc/331/stat : 331 (march_nn) R 329 331 29266 0 -1 4194304 460 0 0 0 529 0 0 0 25 0 1 0 1102418455 2613248 443 1992294400 134512640 135197250 4294956240 18446744073709551615 134601567 0 0 4096 0 0 0 0 17 1 0 0
/proc/331/statm: 638 443 93 167 0 469 0
Current children cumulated CPU time (s) 5.29
Current children cumulated vsize (KiB) 2552

[startup+5.40165 s]
/proc/loadavg: 0.99 0.97 0.99 2/73 332
/proc/meminfo: memFree=1138304/2055920 swapFree=4175896/4192956
[pid=331] ppid=329 vsize=2552 CPUtime=5.4
/proc/331/stat : 331 (march_nn) R 329 331 29266 0 -1 4194304 463 0 0 0 540 0 0 0 25 0 1 0 1102418455 2613248 446 1992294400 134512640 135197250 4294956240 18446744073709551615 134552722 0 0 4096 0 0 0 0 17 1 0 0
/proc/331/statm: 638 446 93 167 0 469 0
Current children cumulated CPU time (s) 5.4
Current children cumulated vsize (KiB) 2552

Child status: 10
Real time (s): 5.49934
CPU time (s): 5.49616
CPU user time (s): 5.49316
CPU system time (s): 0.002999
CPU usage (%): 99.9423
Max. virtual memory (cumulated for all children) (KiB): 2552

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.49316
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= 467
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= 28

runsolver used 0.007998 second user time and 0.022996 second system time

The end

Launcher Data 

Begin job on node66 at 2009-03-29 05:32:52
IDJOB=1518266
IDBENCH=70665
IDSOLVER=522
FILE ID=node66/1518266-1238297572
PBS_JOBID= 9060996
Free space on /tmp= 66544 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/420/unif-k3-r4.25-v420-c1785-S1362286908-061.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1518266-1238297572/watcher-1518266-1238297572 -o /tmp/evaluation-result-1518266-1238297572/solver-1518266-1238297572 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1518266-1238297572.cnf

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

MD5SUM BENCH= 647005b2285214f4136823936a28bcc9
RANDOM SEED=276675506

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		: 3000.286
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		: 3000.286
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:       1140392 kB
Buffers:         90316 kB
Cached:         732636 kB
SwapCached:       8824 kB
Active:         223724 kB
Inactive:       610172 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1140392 kB
SwapTotal:     4192956 kB
SwapFree:      4175896 kB
Dirty:             968 kB
Writeback:           0 kB
Mapped:          16576 kB
Slab:            66816 kB
Committed_AS:  3054160 kB
PageTables:       1976 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= 66544 MiB
End job on node66 at 2009-03-29 05:32:58