Trace number 371734

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, and are wall clock time (not CPU 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
sapsrt 2007-02-08SAT 0.128979 0.130455

General information on the benchmark

Namerandom/OnTreshold/3SAT/v450/
unif-k3-r4.25-v450-c1912-S1113882813-11.SAT.shuffled.cnf
MD5SUM77226f3880fdc77b8d075583e32b35e0
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.023995
Satisfiable
(Un)Satisfiability was proved
Number of variables450
Number of clauses1912
Sum of the clauses size5736
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31912
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.09/0.12	c 
0.09/0.12	c UBCSAT version 1.1.0rr
0.09/0.12	c 
0.09/0.12	c http://www.satlib.org/ubcsat
0.09/0.12	c 
0.09/0.12	c ubcsat -h for help
0.09/0.12	c 
0.09/0.12	c  -runs 1 
0.09/0.12	c  -cutoff 4294967295 
0.09/0.12	c  -timeout 0.000000 
0.09/0.12	c  -gtimeout 0.000000 
0.09/0.12	c  -noimprove 0 
0.09/0.12	c  -target 0 
0.09/0.12	c  -wtarget 0.000000 
0.09/0.12	c  -seed 256338883 
0.09/0.12	c  -solve 0 
0.09/0.12	c  -find,-numsol 0 
0.09/0.12	c  -findunique 0 
0.09/0.12	c  -srestart 0 
0.09/0.12	c  -prestart 0.000000 
0.09/0.12	c  -drestart 0 
0.09/0.12	c 
0.09/0.12	c  -alpha 1.126000 
0.09/0.12	c  -rho 0.666000 
0.09/0.12	c  -ps 0.033000 
0.09/0.12	c  -wp 0.060000 
0.09/0.12	c  -sapsthresh -0.100000 
0.09/0.12	c 
0.09/0.12	s SATISFIABLE
0.09/0.12	v  -1 2 3 4 -5 6 7 -8 9 10
0.09/0.12	v  -11 12 13 -14 15 16 17 -18 -19 20
0.09/0.12	v  -21 22 23 24 25 26 -27 -28 29 -30
0.09/0.12	v  -31 32 -33 34 -35 -36 -37 38 -39 40
0.09/0.12	v  41 42 43 44 45 -46 47 -48 -49 50
0.09/0.12	v  -51 -52 -53 54 -55 -56 -57 -58 -59 60
0.09/0.12	v  -61 62 63 64 -65 66 -67 68 69 70
0.09/0.12	v  71 72 73 74 75 -76 77 -78 -79 -80
0.09/0.12	v  81 82 83 -84 85 86 87 88 89 90
0.09/0.12	v  91 92 93 94 95 96 97 -98 -99 100
0.09/0.12	v  101 -102 103 104 105 -106 -107 -108 -109 110
0.09/0.12	v  111 -112 -113 -114 115 116 -117 -118 -119 -120
0.09/0.12	v  121 -122 123 -124 -125 126 -127 128 129 130
0.09/0.12	v  131 132 133 134 -135 -136 -137 -138 139 -140
0.09/0.12	v  141 142 -143 -144 145 146 -147 148 -149 -150
0.09/0.12	v  151 152 -153 -154 155 -156 157 158 159 -160
0.09/0.12	v  161 162 163 -164 165 166 -167 168 -169 170
0.09/0.12	v  171 172 173 174 175 -176 -177 -178 -179 -180
0.09/0.12	v  181 -182 183 184 -185 -186 -187 -188 189 -190
0.09/0.12	v  -191 192 193 194 195 196 -197 -198 199 -200
0.09/0.12	v  -201 -202 -203 204 205 -206 -207 -208 209 -210
0.09/0.12	v  211 -212 213 -214 -215 -216 -217 218 -219 220
0.09/0.12	v  221 -222 -223 -224 225 226 -227 -228 -229 -230
0.09/0.12	v  -231 232 233 -234 235 -236 -237 -238 -239 240
0.09/0.12	v  241 -242 -243 244 -245 246 247 248 249 250
0.09/0.12	v  -251 252 253 254 255 256 -257 258 -259 260
0.09/0.12	v  261 262 -263 264 265 266 267 268 269 -270
0.09/0.12	v  -271 272 -273 -274 275 -276 277 278 -279 280
0.09/0.12	v  -281 282 283 284 285 -286 287 288 289 290
0.09/0.12	v  -291 292 -293 294 295 296 297 -298 -299 -300
0.09/0.12	v  301 302 303 -304 305 306 307 308 -309 -310
0.09/0.12	v  311 -312 -313 -314 315 -316 317 -318 319 -320
0.09/0.12	v  321 -322 -323 324 -325 326 327 328 329 330
0.09/0.12	v  -331 332 -333 334 335 336 -337 -338 339 -340
0.09/0.12	v  -341 -342 343 -344 -345 346 -347 -348 349 350
0.09/0.12	v  351 352 353 354 355 356 -357 -358 359 360
0.09/0.12	v  -361 362 -363 364 -365 -366 -367 -368 369 370
0.09/0.12	v  -371 -372 -373 -374 375 -376 377 -378 -379 -380
0.09/0.12	v  -381 -382 -383 384 385 -386 -387 388 -389 -390
0.09/0.12	v  391 -392 393 394 395 -396 397 398 399 400
0.09/0.12	v  401 402 403 -404 405 -406 -407 -408 409 410
0.09/0.12	v  411 -412 -413 -414 -415 416 -417 418 -419 -420
0.09/0.12	v  421 -422 423 -424 -425 -426 -427 -428 -429 -430
0.09/0.12	v  431 -432 433 434 -435 436 -437 438 -439 440
0.09/0.12	v  -441 442 443 -444 445 446 447 -448 -449 -450
0.09/0.12	v  0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node66/watcher-371734-1177545202 -o ROOT/results/node66/solver-371734-1177545202 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371734-1177545202/sapsrt /tmp/evaluation/371734-1177545202/instance-371734-1177545202.cnf 256338883 

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): 7500 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: 0.00 0.00 0.19 3/64 29003
/proc/meminfo: memFree=1590344/2055920 swapFree=4183056/4192956
[pid=29003] ppid=29001 vsize=5156 CPUtime=0
/proc/29003/stat : 29003 (sapsrt) R 29001 29003 28949 0 -1 4194304 180 0 0 0 0 0 0 0 18 0 1 0 230509770 5279744 165 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134696877 0 0 4096 0 0 0 0 17 1 0 0
/proc/29003/statm: 1289 165 83 159 0 1128 0

[startup+0.0996471 s]
/proc/loadavg: 0.00 0.00 0.19 3/64 29003
/proc/meminfo: memFree=1590344/2055920 swapFree=4183056/4192956
[pid=29003] ppid=29001 vsize=5156 CPUtime=0.09
/proc/29003/stat : 29003 (sapsrt) R 29001 29003 28949 0 -1 4194304 180 0 0 0 9 0 0 0 18 0 1 0 230509770 5279744 165 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134549537 0 0 4096 0 0 0 0 17 1 0 0
/proc/29003/statm: 1289 165 83 159 0 1128 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5156

[startup+0.101647 s]
/proc/loadavg: 0.00 0.00 0.19 3/64 29003
/proc/meminfo: memFree=1590344/2055920 swapFree=4183056/4192956
[pid=29003] ppid=29001 vsize=5156 CPUtime=0.09
/proc/29003/stat : 29003 (sapsrt) R 29001 29003 28949 0 -1 4194304 180 0 0 0 9 0 0 0 18 0 1 0 230509770 5279744 165 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134550064 0 0 4096 0 0 0 0 17 1 0 0
/proc/29003/statm: 1289 165 83 159 0 1128 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5156

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

Child status: 10
Real time (s): 0.130455
CPU time (s): 0.128979
CPU user time (s): 0.12798
CPU system time (s): 0.000999
CPU usage (%): 98.8686
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.12798
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= 195
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= 8
involuntary context switches= 0

runsolver used 0.002999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node66 on Wed Apr 25 23:53:22 UTC 2007

IDJOB= 371734
IDBENCH= 19972
IDSOLVER= 187
FILE ID= node66/371734-1177545202

PBS_JOBID= 4696346

Free space on /tmp= 66408 MiB

SOLVER NAME= sapsrt 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v450/unif-k3-r4.25-v450-c1912-S1113882813-11.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/371734-1177545202/sapsrt /tmp/evaluation/371734-1177545202/instance-371734-1177545202.cnf  256338883       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node66/watcher-371734-1177545202 -o ROOT/results/node66/solver-371734-1177545202 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371734-1177545202/sapsrt /tmp/evaluation/371734-1177545202/instance-371734-1177545202.cnf  256338883       

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  77226f3880fdc77b8d075583e32b35e0

RANDOM SEED= 256338883

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node66.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.281
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		: 3000.281
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:       1590816 kB
Buffers:         41024 kB
Cached:         347388 kB
SwapCached:       4356 kB
Active:         184356 kB
Inactive:       214024 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1590816 kB
SwapTotal:     4192956 kB
SwapFree:      4183056 kB
Dirty:            2192 kB
Writeback:           0 kB
Mapped:          15488 kB
Slab:            52788 kB
Committed_AS:  1834240 kB
PageTables:       1376 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66408 MiB

End job on node66 on Wed Apr 25 23:53:22 UTC 2007