Trace number 1518554

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 5.9051 5.90727

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/400/
unif-k3-r4.25-v400-c1700-S1767425240-073.cnf
MD5SUMa3570ddee79c19b1c54131a205337743
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.016996
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1700
Sum of the clauses size5100
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31700
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 400 variables and 1700 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, 11 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 399 free variables and 1689 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.570
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 150 duplicate clauses
0.00/0.01	c resolvent_look() :: found 78 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 400 variables and 1767 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 400 variabels and 1767 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1767 / 400 ) = 4.42
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 number of free variables = 399
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/999) NodeCount: 30
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: 376
0.10/0.11	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 |****************************************************************| ( 2/999) NodeCount: 2739
0.79/0.81	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 |***************************************************************
c |****************************************************************| ( 3/999) NodeCount: 12884
4.29/4.34	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 |******************************
5.89/5.90	c |10000101000000000000000000010000000$$$$$$$$$$$$$$$$$$$$$$$$$$$$|
5.89/5.90	
c |******************************
5.89/5.90	c
5.89/5.90	c main():: nodeCount: 17492
5.89/5.90	c main():: dead ends in main: 155
5.89/5.90	c main():: lookAheadCount: 1284454
5.89/5.90	c main():: unitResolveCount: 138621
5.89/5.90	c main():: time=5.890000
5.89/5.90	c main():: necessary_assignments: 2885
5.89/5.90	c main():: bin_sat: 0, bin_unsat 0
5.89/5.90	c main():: doublelook: #: 45464, succes #: 23291
5.89/5.90	c main():: doublelook: overall 3.595 of all possible doublelooks executed
5.89/5.90	c main():: doublelook: succesrate: 51.230, average DL_trigger: 45.766
5.89/5.90	c main():: SOLUTION VERIFIED :-)
5.89/5.90	s SATISFIABLE
5.89/5.90	v -1 3 -4 5 6 -7 -8 -9 11 -12 -13 14 15 -16 17 -18 -19 -20 -21 22 -23 24 25 26 -27 28 29 -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 65 -67 68 -69 -70 71 -72 73 -74 75 -76 78 -80 -81 82 83 -84 -85 86 87 -88 89 -90 -92 93 94 95 -96 -97 98 -99 -100 101 -102 -103 104 -105 -106 107 -108 109 110 111 -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 -140 142 143 -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 -198 199 200 202 203 204 205 206 207 208 209 210 211 212 213 -214 -215 -216 217 -218 219 -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 -278 280 281 282 283 -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 -319 321 322 -323 324 325 326 327 328 329 330 331 332 333 334 -336 -337 -338 -339 340 -341 342 343 344 -345 346 347 348 349 -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 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-1518554-1238301258/watcher-1518554-1238301258 -o /tmp/evaluation-result-1518554-1238301258/solver-1518554-1238301258 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1518554-1238301258.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.02 1.00 2/73 12075
/proc/meminfo: memFree=1079904/2055920 swapFree=4173988/4192956
[pid=12075] ppid=12073 vsize=976 CPUtime=0
/proc/12075/stat : 12075 (march_nn) R 12073 12075 11838 0 -1 4194304 139 0 0 0 0 0 0 0 18 0 1 0 1102790770 999424 122 1992294400 134512640 135197250 4294956240 18446744073709551615 134528032 0 0 4096 0 0 0 0 17 1 0 0
/proc/12075/statm: 244 122 68 167 0 75 0

[startup+0.0548059 s]
/proc/loadavg: 1.00 1.02 1.00 2/73 12075
/proc/meminfo: memFree=1079904/2055920 swapFree=4173988/4192956
[pid=12075] ppid=12073 vsize=1556 CPUtime=0.05
/proc/12075/stat : 12075 (march_nn) R 12073 12075 11838 0 -1 4194304 253 0 0 0 5 0 0 0 18 0 1 0 1102790770 1593344 236 1992294400 134512640 135197250 4294956240 18446744073709551615 134539276 0 0 4096 0 0 0 0 17 1 0 0
/proc/12075/statm: 389 236 93 167 0 220 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1556

[startup+0.101815 s]
/proc/loadavg: 1.00 1.02 1.00 2/73 12075
/proc/meminfo: memFree=1079904/2055920 swapFree=4173988/4192956
[pid=12075] ppid=12073 vsize=1556 CPUtime=0.1
/proc/12075/stat : 12075 (march_nn) R 12073 12075 11838 0 -1 4194304 261 0 0 0 10 0 0 0 18 0 1 0 1102790770 1593344 244 1992294400 134512640 135197250 4294956240 18446744073709551615 134542045 0 0 4096 0 0 0 0 17 1 0 0
/proc/12075/statm: 389 244 93 167 0 220 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1556

[startup+0.301853 s]
/proc/loadavg: 1.00 1.02 1.00 2/73 12075
/proc/meminfo: memFree=1079904/2055920 swapFree=4173988/4192956
[pid=12075] ppid=12073 vsize=1692 CPUtime=0.3
/proc/12075/stat : 12075 (march_nn) R 12073 12075 11838 0 -1 4194304 282 0 0 0 30 0 0 0 20 0 1 0 1102790770 1732608 265 1992294400 134512640 135197250 4294956240 18446744073709551615 134542160 0 0 4096 0 0 0 0 17 1 0 0
/proc/12075/statm: 423 265 93 167 0 254 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1692

[startup+0.70193 s]
/proc/loadavg: 1.00 1.02 1.00 2/73 12075
/proc/meminfo: memFree=1079904/2055920 swapFree=4173988/4192956
[pid=12075] ppid=12073 vsize=1692 CPUtime=0.7
/proc/12075/stat : 12075 (march_nn) R 12073 12075 11838 0 -1 4194304 293 0 0 0 70 0 0 0 24 0 1 0 1102790770 1732608 276 1992294400 134512640 135197250 4294956240 18446744073709551615 134552408 0 0 4096 0 0 0 0 17 1 0 0
/proc/12075/statm: 423 276 93 167 0 254 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1692

[startup+1.50108 s]
/proc/loadavg: 1.00 1.02 1.00 2/74 12076
/proc/meminfo: memFree=1079000/2055920 swapFree=4173988/4192956
[pid=12075] ppid=12073 vsize=1880 CPUtime=1.49
/proc/12075/stat : 12075 (march_nn) R 12073 12075 11838 0 -1 4194304 325 0 0 0 149 0 0 0 25 0 1 0 1102790770 1925120 308 1992294400 134512640 135197250 4294956240 18446744073709551615 134552507 0 0 4096 0 0 0 0 17 1 0 0
/proc/12075/statm: 470 308 93 167 0 301 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1880

[startup+3.10139 s]
/proc/loadavg: 1.00 1.02 1.00 2/74 12076
/proc/meminfo: memFree=1078744/2055920 swapFree=4173988/4192956
[pid=12075] ppid=12073 vsize=2384 CPUtime=3.09
/proc/12075/stat : 12075 (march_nn) R 12073 12075 11838 0 -1 4194304 418 0 0 0 309 0 0 0 25 0 1 0 1102790770 2441216 401 1992294400 134512640 135197250 4294956240 18446744073709551615 134552633 0 0 4096 0 0 0 0 17 1 0 0
/proc/12075/statm: 596 401 93 167 0 427 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2384

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

[startup+4.70169 s]
/proc/loadavg: 1.00 1.02 1.00 2/74 12076
/proc/meminfo: memFree=1078296/2055920 swapFree=4173988/4192956
[pid=12075] ppid=12073 vsize=2536 CPUtime=4.69
/proc/12075/stat : 12075 (march_nn) R 12073 12075 11838 0 -1 4194304 454 0 0 0 469 0 0 0 25 0 1 0 1102790770 2596864 437 1992294400 134512640 135197250 4294956240 18446744073709551615 134572702 0 0 4096 0 0 0 0 17 1 0 0
/proc/12075/statm: 634 437 93 167 0 465 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 2536

[startup+5.50585 s]
/proc/loadavg: 1.00 1.02 1.00 2/74 12076
/proc/meminfo: memFree=1078232/2055920 swapFree=4173988/4192956
[pid=12075] ppid=12073 vsize=2536 CPUtime=5.49
/proc/12075/stat : 12075 (march_nn) R 12073 12075 11838 0 -1 4194304 470 0 0 0 549 0 0 0 25 0 1 0 1102790770 2596864 453 1992294400 134512640 135197250 4294956240 18446744073709551615 134541225 0 0 4096 0 0 0 0 17 1 0 0
/proc/12075/statm: 634 453 93 167 0 465 0
Current children cumulated CPU time (s) 5.49
Current children cumulated vsize (KiB) 2536

[startup+5.90193 s]
/proc/loadavg: 1.00 1.02 1.00 2/74 12076
/proc/meminfo: memFree=1078232/2055920 swapFree=4173988/4192956
[pid=12075] ppid=12073 vsize=2536 CPUtime=5.89
/proc/12075/stat : 12075 (march_nn) R 12073 12075 11838 0 -1 4194304 479 0 0 0 589 0 0 0 25 0 1 0 1102790770 2596864 462 1992294400 134512640 135197250 4294956240 18446744073709551615 134525320 0 0 4096 0 0 0 0 17 1 0 0
/proc/12075/statm: 634 462 93 167 0 465 0
Current children cumulated CPU time (s) 5.89
Current children cumulated vsize (KiB) 2536

Child status: 10
Real time (s): 5.90727
CPU time (s): 5.9051
CPU user time (s): 5.8971
CPU system time (s): 0.007998
CPU usage (%): 99.9632
Max. virtual memory (cumulated for all children) (KiB): 2536

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.8971
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= 482
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= 3

runsolver used 0.009998 second user time and 0.020996 second system time

The end

Launcher Data 

Begin job on node76 at 2009-03-29 06:34:18
IDJOB=1518554
IDBENCH=70689
IDSOLVER=522
FILE ID=node76/1518554-1238301258
PBS_JOBID= 9061026
Free space on /tmp= 65808 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S1767425240-073.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1518554-1238301258/watcher-1518554-1238301258 -o /tmp/evaluation-result-1518554-1238301258/solver-1518554-1238301258 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1518554-1238301258.cnf

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

MD5SUM BENCH= a3570ddee79c19b1c54131a205337743
RANDOM SEED=1020159041

node76.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		: 3000.259
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		: 3000.259
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1080320 kB
Buffers:         69528 kB
Cached:         817796 kB
SwapCached:      10684 kB
Active:         157336 kB
Inactive:       749000 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1080320 kB
SwapTotal:     4192956 kB
SwapFree:      4173988 kB
Dirty:             868 kB
Writeback:           0 kB
Mapped:          18988 kB
Slab:            54292 kB
Committed_AS:  2842800 kB
PageTables:       2048 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= 65808 MiB
End job on node76 at 2009-03-29 06:34:24