Trace number 1544861

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 0.860868 0.862032

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S146188995-071.cnf
MD5SUM890aea0df389e5329db583f37e858c1b
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015996
Satisfiable
(Un)Satisfiability was proved
Number of variables520
Number of clauses2210
Sum of the clauses size6630
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32210
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.79/0.86	c run March_dl for 5 seconds ... 
0.79/0.86	c Bin: Executing march_dl
0.79/0.86	c child exited successfully
0.79/0.86	c march_dl returned code 10.
0.79/0.86	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.79/0.86	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.79/0.86	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.79/0.86	c main()::
0.79/0.86	c initFormula():: searching for DIMACS p-line....
0.79/0.86	c initFormula():: the DIMACS p-line indicates a CNF of 520 variables and 2210 clauses.
0.79/0.86	c parseCNF():: parsing....
0.79/0.86	c parseCNF():: the CNF contains 0 unary clauses.
0.79/0.86	c runParser():: parsing was successful, warming up engines...
0.79/0.86	c simplify_formula():: removed 0 tautological, 8 satisfied and 0 duplicate clauses
0.79/0.86	c preprocessing fase I completed:: there are now 519 free variables and 2202 clauses.
0.79/0.86	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.79/0.86	c doublelook_init():: 90% succes rate goal.
0.79/0.86	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
0.79/0.86	c lessRedundantTransformation():: nothing to be done.
0.79/0.86	c transformTo3SAT():: you gave me 520 variables and 2202 clauses.
0.79/0.86	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.79/0.86	c transformTo3SAT():: CHAINPLUS defined.
0.79/0.86	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.79/0.86	c transformTo3SAT():: the transformation yielded 520 variabels and 2202 clauses.
0.79/0.86	c main():: clause / variable ratio: ( 2202 / 520 ) = 4.23
0.79/0.86	c doublelook_init():: 90% succes rate goal.
0.79/0.86	c AddTernaryResolvents(): ternary clauses increased from 2202 to 2287
0.79/0.86	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
0.79/0.86	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.79/0.86	c check_ternary_clause_density :: high
0.79/0.86	c root full lookahead
0.79/0.86	c freevars: 519, independend: 519, ternary clauses: 2287 
0.79/0.86	c main():: all systems go!
0.79/0.86	c |----------------------------------------------------------------|
c |
0.79/0.86	c
0.79/0.86	c main():: nodeCount: 2222
0.79/0.86	c main():: dead ends in main: 22
0.79/0.86	c main():: lookAheadCount: 210645
0.79/0.86	c main():: unitResolveCount: 33907
0.79/0.86	c main():: time=0.860000
0.79/0.86	c main():: necessary_assignments: 981
0.79/0.86	c main():: bin_sat: 0, bin_unsat 0
0.79/0.86	c main():: doublelook: #: 4294, succes #: 3859
0.79/0.86	c main():: doublelook: succesrate: 89.870, threshold: 0.179 * nrofvars
0.79/0.86	c main():: SOLUTION VERIFIED :-)
0.79/0.86	s SATISFIABLE
0.79/0.86	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 -480 481 482 483 -484 -485 486 487 488 489 -490 -491 -492 493 494 -495 496 497 -498 -499 500 -501 -502 -503 -504 505 506 507 508 -509 -510 511 -512 513 -514 515 516 517 518 519 520 0
0.79/0.86	c SATZILLA_TIME=0.860000

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-1544861-1238614870/watcher-1544861-1238614870 -o /tmp/evaluation-result-1544861-1238614870/solver-1544861-1238614870 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2007_R HOME/instance-1544861-1238614870.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 3/65 8697
/proc/meminfo: memFree=1186664/2055920 swapFree=4176856/4192956
[pid=8697] ppid=8695 vsize=1440 CPUtime=0
/proc/8697/stat : 8697 (SATzilla2007_R) S 8695 8697 8455 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 1020860747 1474560 110 1992294400 134512640 135579813 4294956240 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/8697/statm: 360 110 95 260 0 84 0
[pid=8698] ppid=8697 vsize=772 CPUtime=0
/proc/8698/stat : 8698 (march_dl) R 8697 8697 8455 0 -1 4194304 125 0 0 0 0 0 0 0 18 0 1 0 1020860747 790528 117 1992294400 134512640 134996440 4294956272 18446744073709551615 134525015 0 0 8392704 0 0 0 0 17 1 0 0
/proc/8698/statm: 193 117 55 118 0 72 0

[startup+0.0975139 s]
/proc/loadavg: 1.00 1.00 0.94 3/65 8697
/proc/meminfo: memFree=1186664/2055920 swapFree=4176856/4192956
[pid=8697] ppid=8695 vsize=1440 CPUtime=0
/proc/8697/stat : 8697 (SATzilla2007_R) S 8695 8697 8455 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 1020860747 1474560 110 1992294400 134512640 135579813 4294956240 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/8697/statm: 360 110 95 260 0 84 0
[pid=8698] ppid=8697 vsize=1332 CPUtime=0.09
/proc/8698/stat : 8698 (march_dl) R 8697 8697 8455 0 -1 4194304 261 0 0 0 9 0 0 0 18 0 1 0 1020860747 1363968 253 1992294400 134512640 134996440 4294956272 18446744073709551615 134528148 0 0 8392704 0 0 0 0 17 1 0 0
/proc/8698/statm: 333 253 74 118 0 212 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2772

[startup+0.101512 s]
/proc/loadavg: 1.00 1.00 0.94 3/65 8697
/proc/meminfo: memFree=1186664/2055920 swapFree=4176856/4192956
[pid=8697] ppid=8695 vsize=1440 CPUtime=0
/proc/8697/stat : 8697 (SATzilla2007_R) S 8695 8697 8455 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 1020860747 1474560 110 1992294400 134512640 135579813 4294956240 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/8697/statm: 360 110 95 260 0 84 0
[pid=8698] ppid=8697 vsize=1332 CPUtime=0.09
/proc/8698/stat : 8698 (march_dl) R 8697 8697 8455 0 -1 4194304 262 0 0 0 9 0 0 0 18 0 1 0 1020860747 1363968 254 1992294400 134512640 134996440 4294956272 18446744073709551615 134652876 0 0 8392704 0 0 0 0 17 1 0 0
/proc/8698/statm: 333 254 74 118 0 212 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2772

[startup+0.301532 s]
/proc/loadavg: 1.00 1.00 0.94 3/65 8697
/proc/meminfo: memFree=1186664/2055920 swapFree=4176856/4192956
[pid=8697] ppid=8695 vsize=1440 CPUtime=0
/proc/8697/stat : 8697 (SATzilla2007_R) S 8695 8697 8455 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 1020860747 1474560 110 1992294400 134512640 135579813 4294956240 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/8697/statm: 360 110 95 260 0 84 0
[pid=8698] ppid=8697 vsize=1332 CPUtime=0.29
/proc/8698/stat : 8698 (march_dl) R 8697 8697 8455 0 -1 4194304 272 0 0 0 29 0 0 0 19 0 1 0 1020860747 1363968 264 1992294400 134512640 134996440 4294956272 18446744073709551615 134527899 0 0 8392704 0 0 0 0 17 1 0 0
/proc/8698/statm: 333 264 74 118 0 212 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2772

[startup+0.701568 s]
/proc/loadavg: 1.00 1.00 0.94 3/65 8697
/proc/meminfo: memFree=1186664/2055920 swapFree=4176856/4192956
[pid=8697] ppid=8695 vsize=1440 CPUtime=0
/proc/8697/stat : 8697 (SATzilla2007_R) S 8695 8697 8455 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 1020860747 1474560 110 1992294400 134512640 135579813 4294956240 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/8697/statm: 360 110 95 260 0 84 0
[pid=8698] ppid=8697 vsize=1332 CPUtime=0.69
/proc/8698/stat : 8698 (march_dl) R 8697 8697 8455 0 -1 4194304 278 0 0 0 69 0 0 0 23 0 1 0 1020860747 1363968 270 1992294400 134512640 134996440 4294956272 18446744073709551615 134527002 0 0 8392704 0 0 0 0 17 1 0 0
/proc/8698/statm: 333 270 74 118 0 212 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2772

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

[startup+0.801578 s]
/proc/loadavg: 1.00 1.00 0.94 3/65 8697
/proc/meminfo: memFree=1186664/2055920 swapFree=4176856/4192956
[pid=8697] ppid=8695 vsize=1440 CPUtime=0
/proc/8697/stat : 8697 (SATzilla2007_R) S 8695 8697 8455 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 1020860747 1474560 110 1992294400 134512640 135579813 4294956240 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/8697/statm: 360 110 95 260 0 84 0
[pid=8698] ppid=8697 vsize=1332 CPUtime=0.79
/proc/8698/stat : 8698 (march_dl) R 8697 8697 8455 0 -1 4194304 279 0 0 0 79 0 0 0 24 0 1 0 1020860747 1363968 271 1992294400 134512640 134996440 4294956272 18446744073709551615 134551602 0 0 8392704 0 0 0 0 17 1 0 0
/proc/8698/statm: 333 271 74 118 0 212 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 2772

Child status: 10
Real time (s): 0.862032
CPU time (s): 0.860868
CPU user time (s): 0.859869
CPU system time (s): 0.000999
CPU usage (%): 99.865
Max. virtual memory (cumulated for all children) (KiB): 2772

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.859869
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= 439
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= 6
involuntary context switches= 4

runsolver used 0.003999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node8 at 2009-04-01 21:41:10
IDJOB=1544861
IDBENCH=70658
IDSOLVER=557
FILE ID=node8/1544861-1238614870
PBS_JOBID= 9073693
Free space on /tmp= 64248 MiB

SOLVER NAME= SAT07 reference solver: SATzilla RANDOM
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S146188995-071.cnf
COMMAND LINE= HOME/SATzilla2007_R BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1544861-1238614870/watcher-1544861-1238614870 -o /tmp/evaluation-result-1544861-1238614870/solver-1544861-1238614870 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2007_R HOME/instance-1544861-1238614870.cnf            

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

MD5SUM BENCH= 890aea0df389e5329db583f37e858c1b
RANDOM SEED=566654728

node8.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		: 3000.232
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		: 3000.232
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:       1187144 kB
Buffers:        107864 kB
Cached:         653576 kB
SwapCached:       9204 kB
Active:         199256 kB
Inactive:       572800 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1187144 kB
SwapTotal:     4192956 kB
SwapFree:      4176856 kB
Dirty:            8392 kB
Writeback:           0 kB
Mapped:          16332 kB
Slab:            82556 kB
Committed_AS:  2723724 kB
PageTables:       1376 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 64240 MiB
End job on node8 at 2009-04-01 21:41:11