Trace number 1626873

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 1.35879 1.35988

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/420/
unif-k3-r4.25-v420-c1785-S1014608490-038.cnf
MD5SUMfa87bf22946652bd235c5205438c2d39
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011997
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 0.514
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 176 duplicate clauses
0.00/0.01	c resolvent_look() :: found 85 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 420 variables and 1870 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 1870 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1870 / 420 ) = 4.45
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: 163 JD: 19
0.04/0.08	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
1.29/1.35	c solution bin :: 0000000000001000000.1010011000100
1.29/1.35	c direction branchin :: current_rights = 6
1.29/1.35	
c |***************************************************************
1.29/1.35	c
1.29/1.35	c main():: nodeCount: 2957
1.29/1.35	c main():: dead ends in main: 110
1.29/1.35	c main():: lookAheadCount: 214573
1.29/1.35	c main():: unitResolveCount: 44625
1.29/1.35	c main():: time=1.350000
1.29/1.35	c main():: necessary_assignments: 937
1.29/1.35	c main():: bin_sat: 0, bin_unsat 0
1.29/1.35	c main():: doublelook: #: 11924, succes #: 8735
1.29/1.35	c main():: doublelook: overall 5.764 of all possible doublelooks executed
1.29/1.35	c main():: doublelook: succesrate: 73.256, average DL_trigger: 6461.726
1.29/1.35	c main():: SOLUTION VERIFIED :-)
1.29/1.35	s SATISFIABLE
1.29/1.35	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-1626873-1240141210/watcher-1626873-1240141210 -o /tmp/evaluation-result-1626873-1240141210/solver-1626873-1240141210 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1626873-1240141210.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): 6000 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 1.00 3/64 25276
/proc/meminfo: memFree=1080104/2055920 swapFree=4192956/4192956
[pid=25276] ppid=25274 vsize=792 CPUtime=0
/proc/25276/stat : 25276 (march_ks) R 25274 25276 24847 0 -1 4194304 126 0 0 0 0 0 0 0 18 0 1 0 42154010 811008 109 1992294400 134512640 135019032 4294956240 18446744073709551615 134554758 0 0 4096 0 0 0 0 17 0 0 0
/proc/25276/statm: 198 109 52 123 0 73 0

[startup+0.050144 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25276
/proc/meminfo: memFree=1080104/2055920 swapFree=4192956/4192956
[pid=25276] ppid=25274 vsize=1188 CPUtime=0.04
/proc/25276/stat : 25276 (march_ks) R 25274 25276 24847 0 -1 4194304 241 0 0 0 4 0 0 0 18 0 1 0 42154010 1216512 224 1992294400 134512640 135019032 4294956240 18446744073709551615 134662703 0 0 4096 0 0 0 0 17 0 0 0
/proc/25276/statm: 297 224 73 123 0 172 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1188

[startup+0.101154 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25276
/proc/meminfo: memFree=1080104/2055920 swapFree=4192956/4192956
[pid=25276] ppid=25274 vsize=1188 CPUtime=0.09
/proc/25276/stat : 25276 (march_ks) R 25274 25276 24847 0 -1 4194304 248 0 0 0 9 0 0 0 18 0 1 0 42154010 1216512 231 1992294400 134512640 135019032 4294956240 18446744073709551615 134538162 0 0 4096 0 0 0 0 17 0 0 0
/proc/25276/statm: 297 231 73 123 0 172 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1188

[startup+0.301187 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25276
/proc/meminfo: memFree=1080104/2055920 swapFree=4192956/4192956
[pid=25276] ppid=25274 vsize=1320 CPUtime=0.29
/proc/25276/stat : 25276 (march_ks) R 25274 25276 24847 0 -1 4194304 268 0 0 0 29 0 0 0 19 0 1 0 42154010 1351680 251 1992294400 134512640 135019032 4294956240 18446744073709551615 134526432 0 0 4096 0 0 0 0 17 0 0 0
/proc/25276/statm: 330 251 73 123 0 205 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1320

[startup+0.701257 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25276
/proc/meminfo: memFree=1080104/2055920 swapFree=4192956/4192956
[pid=25276] ppid=25274 vsize=1320 CPUtime=0.69
/proc/25276/stat : 25276 (march_ks) R 25274 25276 24847 0 -1 4194304 272 0 0 0 69 0 0 0 23 0 1 0 42154010 1351680 255 1992294400 134512640 135019032 4294956240 18446744073709551615 134526435 0 0 4096 0 0 0 0 17 0 0 0
/proc/25276/statm: 330 255 73 123 0 205 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1320

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

[startup+1.10532 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25277
/proc/meminfo: memFree=1079200/2055920 swapFree=4192956/4192956
[pid=25276] ppid=25274 vsize=1320 CPUtime=1.09
/proc/25276/stat : 25276 (march_ks) R 25274 25276 24847 0 -1 4194304 278 0 0 0 109 0 0 0 25 0 1 0 42154010 1351680 261 1992294400 134512640 135019032 4294956240 18446744073709551615 134538194 0 0 4096 0 0 0 0 17 0 0 0
/proc/25276/statm: 330 261 73 123 0 205 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 1320

[startup+1.30136 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25277
/proc/meminfo: memFree=1079200/2055920 swapFree=4192956/4192956
[pid=25276] ppid=25274 vsize=1320 CPUtime=1.29
/proc/25276/stat : 25276 (march_ks) R 25274 25276 24847 0 -1 4194304 278 0 0 0 129 0 0 0 25 0 1 0 42154010 1351680 261 1992294400 134512640 135019032 4294956240 18446744073709551615 134526443 0 0 4096 0 0 0 0 17 0 0 0
/proc/25276/statm: 330 261 73 123 0 205 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 1320

Child status: 10
Real time (s): 1.35988
CPU time (s): 1.35879
CPU user time (s): 1.35379
CPU system time (s): 0.004999
CPU usage (%): 99.9204
Max. virtual memory (cumulated for all children) (KiB): 1320

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.35379
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 281
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= 2

runsolver used 0.003999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node25 at 2009-04-19 13:40:10
IDJOB=1626873
IDBENCH=70671
IDSOLVER=582
FILE ID=node25/1626873-1240141210
PBS_JOBID= 9159250
Free space on /tmp= 66476 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-S1014608490-038.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1626873-1240141210/watcher-1626873-1240141210 -o /tmp/evaluation-result-1626873-1240141210/solver-1626873-1240141210 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1626873-1240141210.cnf            

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= fa87bf22946652bd235c5205438c2d39
RANDOM SEED=801042853

node25.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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1080584 kB
Buffers:         84204 kB
Cached:         815232 kB
SwapCached:          0 kB
Active:         185612 kB
Inactive:       727748 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1080584 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            2900 kB
Writeback:           0 kB
Mapped:          23700 kB
Slab:            47996 kB
Committed_AS:   174140 kB
PageTables:       1460 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= 66472 MiB
End job on node25 at 2009-04-19 13:40:11