Trace number 1544890

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
SAT07 reference solver: March KS 2007-02-08SAT 5.2522 5.25364

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/420/
unif-k3-r4.25-v420-c1785-S1880984131-087.cnf
MD5SUMe8e7e26f525620bde52dee4b2a5f6f0e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007998
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) 2001-2004 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 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, 0 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 420 free variables and 1785 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.512
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 160 duplicate clauses
0.00/0.01	c resolvent_look() :: found 68 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 420 variables and 1853 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 420 variabels and 1853 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1853 / 420 ) = 4.41
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: 159 JD: 14
0.00/0.07	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: 6614 JD: 14
3.20/3.27	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
5.19/5.25	c solution bin :: 10000001000000.000010010010001000
5.19/5.25	c direction branchin :: current_rights = 6
5.19/5.25	
c |*******************************
5.19/5.25	c
5.19/5.25	c main():: nodeCount: 10561
5.19/5.25	c main():: dead ends in main: 292
5.19/5.25	c main():: lookAheadCount: 795205
5.19/5.25	c main():: unitResolveCount: 138181
5.19/5.25	c main():: time=5.250000
5.19/5.25	c main():: necessary_assignments: 2834
5.19/5.25	c main():: bin_sat: 0, bin_unsat 0
5.19/5.25	c main():: doublelook: #: 46889, succes #: 35361
5.19/5.25	c main():: doublelook: overall 6.118 of all possible doublelooks executed
5.19/5.25	c main():: doublelook: succesrate: 75.414, average DL_trigger: 6487.727
5.19/5.25	c main():: SOLUTION VERIFIED :-)
5.19/5.25	s SATISFIABLE
5.19/5.25	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 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1544890-1238614911/watcher-1544890-1238614911 -o /tmp/evaluation-result-1544890-1238614911/solver-1544890-1238614911 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1544890-1238614911.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 1.00 0.94 3/64 28221
/proc/meminfo: memFree=1250024/2055920 swapFree=4178264/4192956
[pid=28221] ppid=28219 vsize=792 CPUtime=0
/proc/28221/stat : 28221 (march_ks) R 28219 28221 28031 0 -1 4194304 126 0 0 0 0 0 0 0 18 0 1 0 1134156622 811008 109 1992294400 134512640 135019032 4294956240 18446744073709551615 134662703 0 0 4096 0 0 0 0 17 0 0 0
/proc/28221/statm: 198 109 52 123 0 73 0

[startup+0.00993592 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 28221
/proc/meminfo: memFree=1250024/2055920 swapFree=4178264/4192956
[pid=28221] ppid=28219 vsize=924 CPUtime=0
/proc/28221/stat : 28221 (march_ks) R 28219 28221 28031 0 -1 4194304 175 0 0 0 0 0 0 0 18 0 1 0 1134156622 946176 158 1992294400 134512640 135019032 4294956240 18446744073709551615 134567066 0 0 4096 0 0 0 0 17 0 0 0
/proc/28221/statm: 231 158 67 123 0 106 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 924

[startup+0.10195 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 28221
/proc/meminfo: memFree=1250024/2055920 swapFree=4178264/4192956
[pid=28221] ppid=28219 vsize=1188 CPUtime=0.1
/proc/28221/stat : 28221 (march_ks) R 28219 28221 28031 0 -1 4194304 250 0 0 0 10 0 0 0 18 0 1 0 1134156622 1216512 233 1992294400 134512640 135019032 4294956240 18446744073709551615 134538149 0 0 4096 0 0 0 0 17 0 0 0
/proc/28221/statm: 297 233 73 123 0 172 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1188

[startup+0.301981 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 28221
/proc/meminfo: memFree=1250024/2055920 swapFree=4178264/4192956
[pid=28221] ppid=28219 vsize=1320 CPUtime=0.3
/proc/28221/stat : 28221 (march_ks) R 28219 28221 28031 0 -1 4194304 259 0 0 0 30 0 0 0 19 0 1 0 1134156622 1351680 242 1992294400 134512640 135019032 4294956240 18446744073709551615 134542595 0 0 4096 0 0 0 0 17 0 0 0
/proc/28221/statm: 330 242 73 123 0 205 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1320

[startup+0.701044 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 28221
/proc/meminfo: memFree=1250024/2055920 swapFree=4178264/4192956
[pid=28221] ppid=28219 vsize=1320 CPUtime=0.69
/proc/28221/stat : 28221 (march_ks) R 28219 28221 28031 0 -1 4194304 270 0 0 0 69 0 0 0 23 0 1 0 1134156622 1351680 253 1992294400 134512640 135019032 4294956240 18446744073709551615 134547825 0 0 4096 0 0 0 0 17 0 0 0
/proc/28221/statm: 330 253 73 123 0 205 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1320

[startup+1.50117 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 28222
/proc/meminfo: memFree=1249248/2055920 swapFree=4178264/4192956
[pid=28221] ppid=28219 vsize=1320 CPUtime=1.49
/proc/28221/stat : 28221 (march_ks) R 28219 28221 28031 0 -1 4194304 276 0 0 0 149 0 0 0 25 0 1 0 1134156622 1351680 259 1992294400 134512640 135019032 4294956240 18446744073709551615 134597110 0 0 4096 0 0 0 0 17 0 0 0
/proc/28221/statm: 330 259 73 123 0 205 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1320

[startup+3.10143 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 28222
/proc/meminfo: memFree=1249056/2055920 swapFree=4178264/4192956
[pid=28221] ppid=28219 vsize=1320 CPUtime=3.09
/proc/28221/stat : 28221 (march_ks) R 28219 28221 28031 0 -1 4194304 282 0 0 0 309 0 0 0 25 0 1 0 1134156622 1351680 265 1992294400 134512640 135019032 4294956240 18446744073709551615 134564714 0 0 4096 0 0 0 0 17 0 0 0
/proc/28221/statm: 330 265 73 123 0 205 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1320

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

[startup+3.90155 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 28222
/proc/meminfo: memFree=1249056/2055920 swapFree=4178264/4192956
[pid=28221] ppid=28219 vsize=1452 CPUtime=3.89
/proc/28221/stat : 28221 (march_ks) R 28219 28221 28031 0 -1 4194304 285 0 0 0 389 0 0 0 25 0 1 0 1134156622 1486848 268 1992294400 134512640 135019032 4294956240 18446744073709551615 134526435 0 0 4096 0 0 0 0 17 0 0 0
/proc/28221/statm: 363 268 73 123 0 238 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 1452

[startup+4.70168 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 28222
/proc/meminfo: memFree=1249056/2055920 swapFree=4178264/4192956
[pid=28221] ppid=28219 vsize=1452 CPUtime=4.69
/proc/28221/stat : 28221 (march_ks) R 28219 28221 28031 0 -1 4194304 287 0 0 0 469 0 0 0 25 0 1 0 1134156622 1486848 270 1992294400 134512640 135019032 4294956240 18446744073709551615 134526443 0 0 4096 0 0 0 0 17 0 0 0
/proc/28221/statm: 363 270 73 123 0 238 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 1452

[startup+5.10175 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 28222
/proc/meminfo: memFree=1249056/2055920 swapFree=4178264/4192956
[pid=28221] ppid=28219 vsize=1452 CPUtime=5.09
/proc/28221/stat : 28221 (march_ks) R 28219 28221 28031 0 -1 4194304 287 0 0 0 509 0 0 0 25 0 1 0 1134156622 1486848 270 1992294400 134512640 135019032 4294956240 18446744073709551615 134538152 0 0 4096 0 0 0 0 17 0 0 0
/proc/28221/statm: 363 270 73 123 0 238 0
Current children cumulated CPU time (s) 5.09
Current children cumulated vsize (KiB) 1452

[startup+5.20176 s]
/proc/loadavg: 1.00 1.00 0.94 2/65 28222
/proc/meminfo: memFree=1249056/2055920 swapFree=4178264/4192956
[pid=28221] ppid=28219 vsize=1452 CPUtime=5.19
/proc/28221/stat : 28221 (march_ks) R 28219 28221 28031 0 -1 4194304 288 0 0 0 519 0 0 0 25 0 1 0 1134156622 1486848 271 1992294400 134512640 135019032 4294956240 18446744073709551615 134527205 0 0 4096 0 0 0 0 17 0 0 0
/proc/28221/statm: 363 271 73 123 0 238 0
Current children cumulated CPU time (s) 5.19
Current children cumulated vsize (KiB) 1452

Child status: 10
Real time (s): 5.25364
CPU time (s): 5.2522
CPU user time (s): 5.2502
CPU system time (s): 0.001999
CPU usage (%): 99.9725
Max. virtual memory (cumulated for all children) (KiB): 1452

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.2502
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= 289
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= 14

runsolver used 0.006998 second user time and 0.018997 second system time

The end

Launcher Data 

Begin job on node26 at 2009-04-01 21:41:51
IDJOB=1544890
IDBENCH=70672
IDSOLVER=559
FILE ID=node26/1544890-1238614911
PBS_JOBID= 9073675
Free space on /tmp= 66264 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/420/unif-k3-r4.25-v420-c1785-S1880984131-087.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1544890-1238614911/watcher-1544890-1238614911 -o /tmp/evaluation-result-1544890-1238614911/solver-1544890-1238614911 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1544890-1238614911.cnf            

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

MD5SUM BENCH= e8e7e26f525620bde52dee4b2a5f6f0e
RANDOM SEED=531051430

node26.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		: 3000.261
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	: 5931.00
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		: 3000.261
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:       1250568 kB
Buffers:         96188 kB
Cached:         609272 kB
SwapCached:       8472 kB
Active:         240188 kB
Inactive:       475200 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1250568 kB
SwapTotal:     4192956 kB
SwapFree:      4178264 kB
Dirty:            3068 kB
Writeback:           0 kB
Mapped:          15592 kB
Slab:            76048 kB
Committed_AS:  3008488 kB
PageTables:       1372 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= 66260 MiB
End job on node26 at 2009-04-01 21:41:56