Trace number 1544975

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: SATzilla RANDOMSAT 0.629903 0.631217

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/480/
unif-k3-r4.25-v480-c2040-S957997002-040.cnf
MD5SUM92eaf07e43795c59dd53e3c833d9e0f0
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.017996
Satisfiable
(Un)Satisfiability was proved
Number of variables480
Number of clauses2040
Sum of the clauses size6120
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32040
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.59/0.63	c run March_dl for 5 seconds ... 
0.59/0.63	c Bin: Executing march_dl
0.59/0.63	c child exited successfully
0.59/0.63	c march_dl returned code 10.
0.59/0.63	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.59/0.63	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.59/0.63	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.59/0.63	c main()::
0.59/0.63	c initFormula():: searching for DIMACS p-line....
0.59/0.63	c initFormula():: the DIMACS p-line indicates a CNF of 480 variables and 2040 clauses.
0.59/0.63	c parseCNF():: parsing....
0.59/0.63	c parseCNF():: the CNF contains 0 unary clauses.
0.59/0.63	c runParser():: parsing was successful, warming up engines...
0.59/0.63	c simplify_formula():: removed 0 tautological, 5 satisfied and 0 duplicate clauses
0.59/0.63	c preprocessing fase I completed:: there are now 479 free variables and 2035 clauses.
0.59/0.63	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.59/0.63	c doublelook_init():: 90% succes rate goal.
0.59/0.63	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
0.59/0.63	c lessRedundantTransformation():: nothing to be done.
0.59/0.63	c transformTo3SAT():: you gave me 480 variables and 2035 clauses.
0.59/0.63	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.59/0.63	c transformTo3SAT():: CHAINPLUS defined.
0.59/0.63	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.59/0.63	c transformTo3SAT():: the transformation yielded 480 variabels and 2035 clauses.
0.59/0.63	c main():: clause / variable ratio: ( 2035 / 480 ) = 4.24
0.59/0.63	c doublelook_init():: 90% succes rate goal.
0.59/0.63	c AddTernaryResolvents(): ternary clauses increased from 2035 to 2141
0.59/0.63	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
0.59/0.63	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.59/0.63	c check_ternary_clause_density :: high
0.59/0.63	c root full lookahead
0.59/0.63	c freevars: 479, independend: 479, ternary clauses: 2141 
0.59/0.63	c main():: all systems go!
0.59/0.63	c |----------------------------------------------------------------|
c |
0.59/0.63	c
0.59/0.63	c main():: nodeCount: 1687
0.59/0.63	c main():: dead ends in main: 34
0.59/0.63	c main():: lookAheadCount: 148593
0.59/0.63	c main():: unitResolveCount: 24432
0.59/0.63	c main():: time=0.620000
0.59/0.63	c main():: necessary_assignments: 721
0.59/0.63	c main():: bin_sat: 0, bin_unsat 0
0.59/0.63	c main():: doublelook: #: 3121, succes #: 2801
0.59/0.63	c main():: doublelook: succesrate: 89.747, threshold: 0.195 * nrofvars
0.59/0.63	c main():: SOLUTION VERIFIED :-)
0.59/0.63	s SATISFIABLE
0.59/0.63	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 -421 422 -423 424 425 -426 427 -428 -429 430 -431 -432 433 -434 435 436 437 438 439 440 -441 -442 -443 -444 -445 -446 -447 448 449 450 451 452 453 454 -455 -456 -457 -458 459 460 -461 462 463 -464 465 466 -467 -468 469 470 -471 472 473 474 475 476 -477 -478 -479 -480 0
0.59/0.63	c SATZILLA_TIME=0.620000

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-1544975-1238615031/watcher-1544975-1238615031 -o /tmp/evaluation-result-1544975-1238615031/solver-1544975-1238615031 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2007_R HOME/instance-1544975-1238615031.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 0.96 3/64 2327
/proc/meminfo: memFree=1008696/2055920 swapFree=4176444/4192956
[pid=2327] ppid=2325 vsize=1440 CPUtime=0
/proc/2327/stat : 2327 (SATzilla2007_R) R 2325 2327 1976 0 -1 4194304 126 0 0 0 0 0 0 0 19 0 1 0 1134168473 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216547 0 0 4096 0 0 0 0 17 0 0 0
/proc/2327/statm: 360 110 95 260 0 84 0
[pid=2328] ppid=2327 vsize=776 CPUtime=0
/proc/2328/stat : 2328 (march_dl) R 2327 2327 1976 0 -1 4194304 119 0 0 0 0 0 0 0 19 0 1 0 1134168473 794624 112 1992294400 134512640 134996440 4294956256 18446744073709551615 134631169 0 0 8392704 0 0 0 0 17 0 0 0
/proc/2328/statm: 193 111 53 118 0 72 0

[startup+0.0274391 s]
/proc/loadavg: 1.00 1.00 0.96 3/64 2327
/proc/meminfo: memFree=1008696/2055920 swapFree=4176444/4192956
[pid=2327] ppid=2325 vsize=1440 CPUtime=0
/proc/2327/stat : 2327 (SATzilla2007_R) S 2325 2327 1976 0 -1 4194304 128 0 0 0 0 0 0 0 19 0 1 0 1134168473 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/2327/statm: 360 110 95 260 0 84 0
[pid=2328] ppid=2327 vsize=1168 CPUtime=0.02
/proc/2328/stat : 2328 (march_dl) R 2327 2327 1976 0 -1 4194304 233 0 0 0 2 0 0 0 20 0 1 0 1134168473 1196032 225 1992294400 134512640 134996440 4294956256 18446744073709551615 134566108 0 0 8392704 0 0 0 0 17 0 0 0
/proc/2328/statm: 292 225 74 118 0 171 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2608

[startup+0.101451 s]
/proc/loadavg: 1.00 1.00 0.96 3/64 2327
/proc/meminfo: memFree=1008696/2055920 swapFree=4176444/4192956
[pid=2327] ppid=2325 vsize=1440 CPUtime=0
/proc/2327/stat : 2327 (SATzilla2007_R) S 2325 2327 1976 0 -1 4194304 128 0 0 0 0 0 0 0 19 0 1 0 1134168473 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/2327/statm: 360 110 95 260 0 84 0
[pid=2328] ppid=2327 vsize=1168 CPUtime=0.09
/proc/2328/stat : 2328 (march_dl) R 2327 2327 1976 0 -1 4194304 251 0 0 0 9 0 0 0 20 0 1 0 1134168473 1196032 243 1992294400 134512640 134996440 4294956256 18446744073709551615 134514049 0 0 8392704 0 0 0 0 17 0 0 0
/proc/2328/statm: 292 243 74 118 0 171 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2608

[startup+0.301469 s]
/proc/loadavg: 1.00 1.00 0.96 3/64 2327
/proc/meminfo: memFree=1008696/2055920 swapFree=4176444/4192956
[pid=2327] ppid=2325 vsize=1440 CPUtime=0
/proc/2327/stat : 2327 (SATzilla2007_R) S 2325 2327 1976 0 -1 4194304 128 0 0 0 0 0 0 0 19 0 1 0 1134168473 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/2327/statm: 360 110 95 260 0 84 0
[pid=2328] ppid=2327 vsize=1300 CPUtime=0.29
/proc/2328/stat : 2328 (march_dl) R 2327 2327 1976 0 -1 4194304 261 0 0 0 29 0 0 0 22 0 1 0 1134168473 1331200 253 1992294400 134512640 134996440 4294956256 18446744073709551615 134587962 0 0 8392704 0 0 0 0 17 0 0 0
/proc/2328/statm: 325 253 74 118 0 204 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2740

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

[startup+0.50149 s]
/proc/loadavg: 1.00 1.00 0.96 3/64 2327
/proc/meminfo: memFree=1008696/2055920 swapFree=4176444/4192956
[pid=2327] ppid=2325 vsize=1440 CPUtime=0
/proc/2327/stat : 2327 (SATzilla2007_R) S 2325 2327 1976 0 -1 4194304 128 0 0 0 0 0 0 0 19 0 1 0 1134168473 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/2327/statm: 360 110 95 260 0 84 0
[pid=2328] ppid=2327 vsize=1300 CPUtime=0.49
/proc/2328/stat : 2328 (march_dl) R 2327 2327 1976 0 -1 4194304 264 0 0 0 49 0 0 0 25 0 1 0 1134168473 1331200 256 1992294400 134512640 134996440 4294956256 18446744073709551615 134533005 0 0 8392704 0 0 0 0 17 0 0 0
/proc/2328/statm: 325 256 74 118 0 204 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 2740

[startup+0.6015 s]
/proc/loadavg: 1.00 1.00 0.96 3/64 2327
/proc/meminfo: memFree=1008696/2055920 swapFree=4176444/4192956
[pid=2327] ppid=2325 vsize=1440 CPUtime=0
/proc/2327/stat : 2327 (SATzilla2007_R) S 2325 2327 1976 0 -1 4194304 128 0 0 0 0 0 0 0 19 0 1 0 1134168473 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/2327/statm: 360 110 95 260 0 84 0
[pid=2328] ppid=2327 vsize=1300 CPUtime=0.59
/proc/2328/stat : 2328 (march_dl) R 2327 2327 1976 0 -1 4194304 265 0 0 0 59 0 0 0 25 0 1 0 1134168473 1331200 257 1992294400 134512640 134996440 4294956256 18446744073709551615 134528303 0 0 8392704 0 0 0 0 17 0 0 0
/proc/2328/statm: 325 257 74 118 0 204 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 2740

Child status: 10
Real time (s): 0.631217
CPU time (s): 0.629903
CPU user time (s): 0.628904
CPU system time (s): 0.000999
CPU usage (%): 99.7918
Max. virtual memory (cumulated for all children) (KiB): 2740

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.628904
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 424
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= 4
involuntary context switches= 4

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node27 at 2009-04-01 21:43:51
IDJOB=1544975
IDBENCH=70715
IDSOLVER=557
FILE ID=node27/1544975-1238615031
PBS_JOBID= 9073615
Free space on /tmp= 65720 MiB

SOLVER NAME= SAT07 reference solver: SATzilla RANDOM
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/480/unif-k3-r4.25-v480-c2040-S957997002-040.cnf
COMMAND LINE= HOME/SATzilla2007_R BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1544975-1238615031/watcher-1544975-1238615031 -o /tmp/evaluation-result-1544975-1238615031/solver-1544975-1238615031 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2007_R HOME/instance-1544975-1238615031.cnf            

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

MD5SUM BENCH= 92eaf07e43795c59dd53e3c833d9e0f0
RANDOM SEED=1919368339

node27.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		: 2800.196
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	: 5521.40
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		: 2800.196
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:       1009240 kB
Buffers:         97928 kB
Cached:         844172 kB
SwapCached:       9492 kB
Active:         221292 kB
Inactive:       731960 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1009240 kB
SwapTotal:     4192956 kB
SwapFree:      4176444 kB
Dirty:            8784 kB
Writeback:           0 kB
Mapped:          16788 kB
Slab:            79384 kB
Committed_AS:  3043076 kB
PageTables:       1380 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 65712 MiB
End job on node27 at 2009-04-01 21:43:52