Trace number 1539725

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 0.050991 0.0515401

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/400/
unif-k3-r4.25-v400-c1700-S2032726331-082.cnf
MD5SUM978a693c176682b07f74cd4acf1b2ac2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012997
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1700
Sum of the clauses size5100
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31700
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.02/0.05	c SATzilla is building models for class 1
0.02/0.05	c run presolver SATenstein for 30 seconds ... 
0.02/0.05	c Bin: Executing SATenstein
0.02/0.05	c spawning binary file with 30 seconds ...
0.02/0.05	c child exited successfully
0.02/0.05	c SATenstein returned code 10.
0.02/0.05	s SATISFIABLE
0.02/0.05	v  1 2 -3 4 5 -6 7 -8 -9 10
0.02/0.05	v  -11 -12 -13 -14 15 -16 17 -18 -19 -20
0.02/0.05	v  21 -22 23 -24 -25 -26 27 28 -29 30
0.02/0.05	v  31 -32 -33 -34 -35 -36 37 -38 39 -40
0.02/0.05	v  41 42 43 44 45 46 47 -48 -49 50
0.02/0.05	v  51 -52 53 -54 55 -56 -57 58 -59 -60
0.02/0.05	v  -61 -62 -63 -64 -65 -66 -67 68 69 -70
0.02/0.05	v  71 -72 -73 -74 -75 -76 77 -78 -79 80
0.02/0.05	v  -81 -82 -83 -84 -85 86 87 -88 -89 90
0.02/0.05	v  91 92 93 94 95 -96 97 98 99 100
0.02/0.05	v  -101 102 103 -104 105 106 107 -108 -109 -110
0.02/0.05	v  111 -112 113 114 115 116 -117 -118 -119 -120
0.02/0.05	v  -121 -122 123 124 -125 -126 127 128 -129 130
0.02/0.05	v  131 -132 -133 -134 135 136 137 -138 -139 -140
0.02/0.05	v  -141 -142 -143 -144 145 -146 147 -148 -149 -150
0.02/0.05	v  151 152 -153 154 -155 156 157 158 159 160
0.02/0.05	v  -161 162 163 -164 165 166 -167 -168 169 -170
0.02/0.05	v  171 -172 173 -174 -175 -176 -177 178 179 180
0.02/0.05	v  -181 -182 183 -184 -185 -186 -187 188 189 190
0.02/0.05	v  191 192 -193 -194 195 196 197 198 -199 200
0.02/0.05	v  -201 202 -203 -204 205 206 207 208 -209 210
0.02/0.05	v  -211 -212 -213 -214 -215 216 -217 218 219 -220
0.02/0.05	v  221 -222 -223 -224 -225 -226 227 228 229 230
0.02/0.05	v  231 232 -233 234 235 236 -237 238 239 -240
0.02/0.05	v  241 -242 -243 244 245 246 -247 -248 -249 -250
0.02/0.05	v  251 252 -253 -254 -255 -256 257 258 259 260
0.02/0.05	v  -261 -262 263 264 265 -266 267 -268 269 270
0.02/0.05	v  -271 272 -273 -274 -275 276 277 -278 -279 280
0.02/0.05	v  281 -282 283 284 -285 -286 -287 -288 289 290
0.02/0.05	v  -291 292 -293 -294 295 -296 297 -298 -299 -300
0.02/0.05	v  -301 -302 303 304 -305 -306 307 -308 -309 310
0.02/0.05	v  -311 -312 -313 -314 -315 316 -317 -318 -319 -320
0.02/0.05	v  321 322 -323 -324 325 326 -327 -328 329 -330
0.02/0.05	v  331 332 -333 -334 335 336 337 -338 -339 340
0.02/0.05	v  341 342 343 344 345 346 347 -348 -349 -350
0.02/0.05	v  -351 352 -353 354 355 356 357 358 -359 -360
0.02/0.05	v  -361 -362 -363 364 -365 -366 -367 368 369 370
0.02/0.05	v  371 372 373 -374 375 -376 377 -378 -379 -380
0.02/0.05	v  381 382 -383 384 385 -386 -387 -388 -389 -390
0.02/0.05	v  391 392 393 -394 -395 396 -397 398 399 400
0.02/0.05	v  0
0.02/0.05	c SATZILLA_TIME=0.040000

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-1539725-1238580966/watcher-1539725-1238580966 -o /tmp/evaluation-result-1539725-1238580966/solver-1539725-1238580966 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2009_R HOME/instance-1539725-1238580966.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: 2.00 1.87 1.56 3/64 32586
/proc/meminfo: memFree=1001832/2055920 swapFree=4176444/4192956
[pid=32586] ppid=32584 vsize=2056 CPUtime=0
/proc/32586/stat : 32586 (SATzilla2009_R) S 32584 32586 32211 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1130761993 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/32586/statm: 514 112 96 399 0 111 0
[pid=32587] ppid=32586 vsize=6508 CPUtime=0
/proc/32587/stat : 32587 (SATenstein) R 32586 32586 32211 0 -1 4194304 280 0 0 0 0 0 0 0 19 0 1 0 1130761993 6664192 261 1992294400 134512640 134854740 4294955344 18446744073709551615 11013013 0 0 8392704 0 0 0 0 17 0 0 0
/proc/32587/statm: 1627 261 151 83 0 1188 0

[startup+0.0268689 s]
/proc/loadavg: 2.00 1.87 1.56 3/64 32586
/proc/meminfo: memFree=1001832/2055920 swapFree=4176444/4192956
[pid=32586] ppid=32584 vsize=2056 CPUtime=0
/proc/32586/stat : 32586 (SATzilla2009_R) S 32584 32586 32211 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1130761993 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/32586/statm: 514 112 96 399 0 111 0
[pid=32587] ppid=32586 vsize=6504 CPUtime=0.02
/proc/32587/stat : 32587 (SATenstein) R 32586 32586 32211 0 -1 4194304 361 0 0 0 2 0 0 0 19 0 1 0 1130761993 6660096 337 1992294400 134512640 134854740 4294955344 18446744073709551615 134760419 0 0 8392704 0 0 0 0 17 0 0 0
/proc/32587/statm: 1626 337 174 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+0.0268689 s]
/proc/loadavg: 2.00 1.87 1.56 3/64 32586
/proc/meminfo: memFree=1001832/2055920 swapFree=4176444/4192956
[pid=32586] ppid=32584 vsize=2056 CPUtime=0
/proc/32586/stat : 32586 (SATzilla2009_R) S 32584 32586 32211 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1130761993 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/32586/statm: 514 112 96 399 0 111 0
[pid=32587] ppid=32586 vsize=6504 CPUtime=0.02
/proc/32587/stat : 32587 (SATenstein) R 32586 32586 32211 0 -1 4194304 361 0 0 0 2 0 0 0 19 0 1 0 1130761993 6660096 337 1992294400 134512640 134854740 4294955344 18446744073709551615 134760419 0 0 8392704 0 0 0 0 17 0 0 0
/proc/32587/statm: 1626 337 174 83 0 1187 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 8560

Child status: 10
Real time (s): 0.0515401
CPU time (s): 0.050991
CPU user time (s): 0.046992
CPU system time (s): 0.003999
CPU usage (%): 98.9347
Max. virtual memory (cumulated for all children) (KiB): 8560

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.046992
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 531
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 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node27 at 2009-04-01 12:16:06
IDJOB=1539725
IDBENCH=70688
IDSOLVER=526
FILE ID=node27/1539725-1238580966
PBS_JOBID= 9062222
Free space on /tmp= 65720 MiB

SOLVER NAME= SATzilla2009_R 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S2032726331-082.cnf
COMMAND LINE= HOME/SATzilla2009_R BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1539725-1238580966/watcher-1539725-1238580966 -o /tmp/evaluation-result-1539725-1238580966/solver-1539725-1238580966 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2009_R HOME/instance-1539725-1238580966.cnf

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

MD5SUM BENCH= 978a693c176682b07f74cd4acf1b2ac2
RANDOM SEED=594973004

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:       1002376 kB
Buffers:         95000 kB
Cached:         854036 kB
SwapCached:       9492 kB
Active:         228304 kB
Inactive:       731808 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1002376 kB
SwapTotal:     4192956 kB
SwapFree:      4176444 kB
Dirty:           31480 kB
Writeback:           0 kB
Mapped:          16784 kB
Slab:            79416 kB
Committed_AS:  2986544 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= 65688 MiB
End job on node27 at 2009-04-01 12:16:06