Trace number 1539836

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
SATzilla2009_R 2009-03-22SAT 0.030994 0.031234

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/460/
unif-k3-r4.25-v460-c1955-S321371087-018.cnf
MD5SUMb036614b8a0cd434fa1df7a69038371b
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 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 

0.02/0.03	c SATzilla is building models for class 1
0.02/0.03	c run presolver SATenstein for 30 seconds ... 
0.02/0.03	c Bin: Executing SATenstein
0.02/0.03	c spawning binary file with 30 seconds ...
0.02/0.03	c child exited successfully
0.02/0.03	c SATenstein returned code 10.
0.02/0.03	s SATISFIABLE
0.02/0.03	v  -1 2 3 4 -5 6 -7 -8 -9 10
0.02/0.03	v  11 12 -13 -14 -15 16 -17 -18 19 20
0.02/0.03	v  -21 -22 -23 -24 25 26 27 -28 -29 -30
0.02/0.03	v  31 -32 33 -34 -35 36 37 -38 39 40
0.02/0.03	v  -41 -42 43 -44 45 -46 47 -48 49 -50
0.02/0.03	v  51 -52 53 -54 55 56 57 58 -59 -60
0.02/0.03	v  61 62 -63 64 -65 66 67 -68 -69 -70
0.02/0.03	v  -71 72 -73 74 -75 76 -77 -78 -79 -80
0.02/0.03	v  81 -82 83 84 -85 -86 87 88 -89 90
0.02/0.03	v  -91 92 -93 -94 -95 96 -97 -98 99 -100
0.02/0.03	v  101 -102 -103 -104 105 -106 -107 108 -109 110
0.02/0.03	v  -111 112 113 114 115 116 117 -118 -119 120
0.02/0.03	v  -121 -122 123 -124 -125 -126 127 -128 -129 130
0.02/0.03	v  -131 -132 -133 134 -135 136 137 138 -139 -140
0.02/0.03	v  -141 142 -143 144 -145 -146 -147 148 -149 150
0.02/0.03	v  -151 152 -153 154 -155 -156 157 158 -159 160
0.02/0.03	v  -161 162 163 -164 165 166 -167 -168 -169 -170
0.02/0.03	v  171 -172 173 174 175 176 -177 -178 -179 -180
0.02/0.03	v  181 -182 -183 184 -185 186 -187 188 -189 -190
0.02/0.03	v  -191 192 193 194 195 196 -197 198 -199 200
0.02/0.03	v  -201 202 203 204 205 206 207 -208 -209 -210
0.02/0.03	v  211 212 -213 -214 215 216 -217 218 219 -220
0.02/0.03	v  -221 -222 223 224 -225 -226 -227 228 229 -230
0.02/0.03	v  -231 -232 233 -234 -235 -236 -237 238 239 -240
0.02/0.03	v  -241 -242 -243 244 -245 -246 -247 -248 -249 -250
0.02/0.03	v  -251 252 -253 -254 255 -256 -257 -258 259 -260
0.02/0.03	v  261 -262 263 264 -265 266 267 268 -269 270
0.02/0.03	v  -271 -272 273 274 -275 276 -277 -278 -279 280
0.02/0.03	v  281 -282 283 284 285 -286 287 288 289 290
0.02/0.03	v  291 292 -293 294 295 296 297 298 299 -300
0.02/0.03	v  -301 -302 -303 -304 -305 -306 -307 308 -309 310
0.02/0.03	v  311 -312 -313 314 -315 316 317 -318 319 320
0.02/0.03	v  321 322 323 324 325 326 -327 328 -329 330
0.02/0.03	v  -331 332 333 334 -335 336 -337 -338 -339 340
0.02/0.03	v  -341 -342 343 -344 -345 -346 -347 348 -349 -350
0.02/0.03	v  351 -352 353 -354 355 356 -357 -358 359 360
0.02/0.03	v  -361 362 -363 364 365 366 -367 368 369 370
0.02/0.03	v  -371 372 -373 -374 375 -376 377 378 -379 -380
0.02/0.03	v  -381 382 383 384 385 386 -387 -388 389 390
0.02/0.03	v  -391 392 -393 394 395 -396 -397 398 399 -400
0.02/0.03	v  -401 -402 403 404 405 -406 -407 408 -409 410
0.02/0.03	v  -411 -412 -413 -414 415 -416 417 -418 419 -420
0.02/0.03	v  -421 -422 423 -424 425 426 427 428 429 430
0.02/0.03	v  -431 -432 433 -434 -435 -436 -437 -438 -439 -440
0.02/0.03	v  -441 -442 -443 -444 445 446 -447 -448 -449 450
0.02/0.03	v  451 452 -453 -454 455 -456 457 458 -459 -460
0.02/0.03	v  0
0.02/0.03	c SATZILLA_TIME=0.020000

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1539836-1238593072/watcher-1539836-1238593072 -o /tmp/evaluation-result-1539836-1238593072/solver-1539836-1238593072 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2009_R HOME/instance-1539836-1238593072.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 1.10 1.22 3/73 28360
/proc/meminfo: memFree=1419376/2055920 swapFree=4164824/4192956
[pid=28360] ppid=28358 vsize=2056 CPUtime=0
/proc/28360/stat : 28360 (SATzilla2009_R) R 28358 28360 28101 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1131972051 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135543087 0 0 4096 0 0 0 0 17 0 0 0
/proc/28360/statm: 514 112 96 399 0 111 0
[pid=28361] ppid=28360 vsize=6508 CPUtime=0
/proc/28361/stat : 28361 (SATenstein) R 28360 28360 28101 0 -1 4194304 283 0 0 0 0 0 0 0 18 0 1 0 1131972051 6664192 264 1992294400 134512640 134854740 4294955344 18446744073709551615 134782527 0 0 8392704 0 0 0 0 17 0 0 0
/proc/28361/statm: 1627 264 151 83 0 1188 0

[startup+0.0269849 s]
/proc/loadavg: 1.00 1.10 1.22 3/73 28360
/proc/meminfo: memFree=1419376/2055920 swapFree=4164824/4192956
[pid=28360] ppid=28358 vsize=2056 CPUtime=0
/proc/28360/stat : 28360 (SATzilla2009_R) S 28358 28360 28101 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1131972051 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/28360/statm: 514 112 96 399 0 111 0
[pid=28361] ppid=28360 vsize=6504 CPUtime=0.02
/proc/28361/stat : 28361 (SATenstein) R 28360 28360 28101 0 -1 4194304 368 0 0 0 2 0 0 0 19 0 1 0 1131972051 6660096 343 1992294400 134512640 134854740 4294955344 18446744073709551615 134760594 0 0 8392704 0 0 0 0 17 0 0 0
/proc/28361/statm: 1626 343 174 83 0 1187 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 8560

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

[startup+0.0269849 s]
/proc/loadavg: 1.00 1.10 1.22 3/73 28360
/proc/meminfo: memFree=1419376/2055920 swapFree=4164824/4192956
[pid=28360] ppid=28358 vsize=2056 CPUtime=0
/proc/28360/stat : 28360 (SATzilla2009_R) S 28358 28360 28101 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1131972051 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/28360/statm: 514 112 96 399 0 111 0
[pid=28361] ppid=28360 vsize=6504 CPUtime=0.02
/proc/28361/stat : 28361 (SATenstein) R 28360 28360 28101 0 -1 4194304 368 0 0 0 2 0 0 0 19 0 1 0 1131972051 6660096 343 1992294400 134512640 134854740 4294955344 18446744073709551615 134760594 0 0 8392704 0 0 0 0 17 0 0 0
/proc/28361/statm: 1626 343 174 83 0 1187 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 8560

Child status: 10
Real time (s): 0.031234
CPU time (s): 0.030994
CPU user time (s): 0.027995
CPU system time (s): 0.002999
CPU usage (%): 99.2317
Max. virtual memory (cumulated for all children) (KiB): 8560

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.027995
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= 538
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= 1

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node81 at 2009-04-01 15:37:52
IDJOB=1539836
IDBENCH=70725
IDSOLVER=526
FILE ID=node81/1539836-1238593072
PBS_JOBID= 9062246
Free space on /tmp= 126316 MiB

SOLVER NAME= SATzilla2009_R 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/460/unif-k3-r4.25-v460-c1955-S321371087-018.cnf
COMMAND LINE= HOME/SATzilla2009_R BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1539836-1238593072/watcher-1539836-1238593072 -o /tmp/evaluation-result-1539836-1238593072/solver-1539836-1238593072 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2009_R HOME/instance-1539836-1238593072.cnf

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

MD5SUM BENCH= b036614b8a0cd434fa1df7a69038371b
RANDOM SEED=557137201

node81.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		: 3000.220
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		: 3000.220
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:       1419920 kB
Buffers:         89696 kB
Cached:         443964 kB
SwapCached:      19112 kB
Active:         355728 kB
Inactive:       198860 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1419920 kB
SwapTotal:     4192956 kB
SwapFree:      4164824 kB
Dirty:           31488 kB
Writeback:           0 kB
Mapped:          26536 kB
Slab:            66332 kB
Committed_AS:  3024784 kB
PageTables:       2084 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= 126288 MiB
End job on node81 at 2009-04-01 15:37:52