Trace number 1626982

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 0.194969 0.195051

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/460/
unif-k3-r4.25-v460-c1955-S1733990810-090.cnf
MD5SUMcc65c4677bcd52e268abf185559aaea4
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.006998
Satisfiable
(Un)Satisfiability was proved
Number of variables460
Number of clauses1955
Sum of the clauses size5865
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31955
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.09/0.19	c run March_dl for 5 seconds ... 
0.09/0.19	c Bin: Executing march_dl
0.09/0.19	c child exited successfully
0.09/0.19	c march_dl returned code 10.
0.09/0.19	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.09/0.19	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.09/0.19	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.09/0.19	c main()::
0.09/0.19	c initFormula():: searching for DIMACS p-line....
0.09/0.19	c initFormula():: the DIMACS p-line indicates a CNF of 460 variables and 1955 clauses.
0.09/0.19	c parseCNF():: parsing....
0.09/0.19	c parseCNF():: the CNF contains 0 unary clauses.
0.09/0.19	c runParser():: parsing was successful, warming up engines...
0.09/0.19	c simplify_formula():: removed 0 tautological, 7 satisfied and 0 duplicate clauses
0.09/0.19	c preprocessing fase I completed:: there are now 459 free variables and 1948 clauses.
0.09/0.19	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.09/0.19	c doublelook_init():: 90% succes rate goal.
0.09/0.19	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
0.09/0.19	c lessRedundantTransformation():: nothing to be done.
0.09/0.19	c transformTo3SAT():: you gave me 460 variables and 1948 clauses.
0.09/0.19	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.09/0.19	c transformTo3SAT():: CHAINPLUS defined.
0.09/0.19	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.09/0.19	c transformTo3SAT():: the transformation yielded 460 variabels and 1948 clauses.
0.09/0.19	c main():: clause / variable ratio: ( 1948 / 460 ) = 4.23
0.09/0.19	c doublelook_init():: 90% succes rate goal.
0.09/0.19	c AddTernaryResolvents(): ternary clauses increased from 1948 to 2040
0.09/0.19	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
0.09/0.19	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.09/0.19	c check_ternary_clause_density :: high
0.09/0.19	c root full lookahead
0.09/0.19	c freevars: 459, independend: 459, ternary clauses: 2040 
0.09/0.19	c main():: all systems go!
0.09/0.19	c |----------------------------------------------------------------|
c |
0.09/0.19	c
0.09/0.19	c main():: nodeCount: 601
0.09/0.19	c main():: dead ends in main: 14
0.09/0.19	c main():: lookAheadCount: 53257
0.09/0.19	c main():: unitResolveCount: 9435
0.09/0.19	c main():: time=0.190000
0.09/0.19	c main():: necessary_assignments: 337
0.09/0.19	c main():: bin_sat: 0, bin_unsat 0
0.09/0.19	c main():: doublelook: #: 783, succes #: 692
0.09/0.19	c main():: doublelook: succesrate: 88.378, threshold: 0.213 * nrofvars
0.09/0.19	c main():: SOLUTION VERIFIED :-)
0.09/0.19	s SATISFIABLE
0.09/0.19	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 0
0.09/0.19	c SATZILLA_TIME=0.190000

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-1626982-1240142254/watcher-1626982-1240142254 -o /tmp/evaluation-result-1626982-1240142254/solver-1626982-1240142254 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/SATzilla2007_R HOME/instance-1626982-1240142254.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: 0.99 0.98 0.99 3/65 25223
/proc/meminfo: memFree=817256/2055912 swapFree=4192956/4192956
[pid=25223] ppid=25221 vsize=1440 CPUtime=0
/proc/25223/stat : 25223 (SATzilla2007_R) R 25221 25223 24413 0 -1 4194304 126 0 0 0 0 0 0 0 18 0 1 0 42254426 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216547 0 0 4096 0 0 0 0 17 0 0 0
/proc/25223/statm: 360 110 95 260 0 84 0
[pid=25224] ppid=25223 vsize=772 CPUtime=0
/proc/25224/stat : 25224 (march_dl) R 25223 25223 24413 0 -1 4194304 118 0 0 0 0 0 0 0 18 0 1 0 42254426 790528 110 1992294400 134512640 134996440 4294956256 18446744073709551615 134544569 0 0 8392704 0 0 0 0 17 0 0 0
/proc/25224/statm: 193 110 53 118 0 72 0

[startup+0.0733611 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 25223
/proc/meminfo: memFree=817256/2055912 swapFree=4192956/4192956
[pid=25223] ppid=25221 vsize=1440 CPUtime=0
/proc/25223/stat : 25223 (SATzilla2007_R) S 25221 25223 24413 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 42254426 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/25223/statm: 360 110 95 260 0 84 0
[pid=25224] ppid=25223 vsize=1168 CPUtime=0.06
/proc/25224/stat : 25224 (march_dl) R 25223 25223 24413 0 -1 4194304 244 0 0 0 6 0 0 0 20 0 1 0 42254426 1196032 236 1992294400 134512640 134996440 4294956256 18446744073709551615 134564360 0 0 8392704 0 0 0 0 17 0 0 0
/proc/25224/statm: 292 236 74 118 0 171 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 2608

[startup+0.102362 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 25223
/proc/meminfo: memFree=817256/2055912 swapFree=4192956/4192956
[pid=25223] ppid=25221 vsize=1440 CPUtime=0
/proc/25223/stat : 25223 (SATzilla2007_R) S 25221 25223 24413 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 42254426 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/25223/statm: 360 110 95 260 0 84 0
[pid=25224] ppid=25223 vsize=1168 CPUtime=0.09
/proc/25224/stat : 25224 (march_dl) R 25223 25223 24413 0 -1 4194304 247 0 0 0 9 0 0 0 20 0 1 0 42254426 1196032 239 1992294400 134512640 134996440 4294956256 18446744073709551615 134514202 0 0 8392704 0 0 0 0 17 0 0 0
/proc/25224/statm: 292 239 74 118 0 171 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2608

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

Child status: 10
Real time (s): 0.195051
CPU time (s): 0.194969
CPU user time (s): 0.19197
CPU system time (s): 0.002999
CPU usage (%): 99.9579
Max. virtual memory (cumulated for all children) (KiB): 2608

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.19197
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 412
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= 2

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node78 at 2009-04-19 13:57:34
IDJOB=1626982
IDBENCH=70726
IDSOLVER=581
FILE ID=node78/1626982-1240142254
PBS_JOBID= 9157875
Free space on /tmp= 126644 MiB

SOLVER NAME= SAT07 reference solver: SATzilla RANDOM
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/460/unif-k3-r4.25-v460-c1955-S1733990810-090.cnf
COMMAND LINE= HOME/SATzilla2007_R BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1626982-1240142254/watcher-1626982-1240142254 -o /tmp/evaluation-result-1626982-1240142254/solver-1626982-1240142254 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/SATzilla2007_R HOME/instance-1626982-1240142254.cnf            

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

MD5SUM BENCH= cc65c4677bcd52e268abf185559aaea4
RANDOM SEED=1346607816

node78.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		: 3000.243
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		: 3000.243
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:      2055912 kB
MemFree:        817800 kB
Buffers:         87360 kB
Cached:        1047628 kB
SwapCached:          0 kB
Active:         257248 kB
Inactive:       892612 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055912 kB
LowFree:        817800 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            8396 kB
Writeback:           0 kB
Mapped:          24576 kB
Slab:            74036 kB
Committed_AS:   177704 kB
PageTables:       1428 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= 126636 MiB
End job on node78 at 2009-04-19 13:57:34