Trace number 297781

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
saps 2007-02-08SAT 0.040992 0.042912

General information on the benchmark

Namerandom/OnTreshold/3SAT/v450/
unif-k3-r4.25-v450-c1912-S1483146927-18.SAT.shuffled.cnf
MD5SUM77e016deb256b6adc6e3dd66e59ef5da
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011997
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)

0.00/0.04	c 
0.00/0.04	c UBCSAT version 1.1.0rr
0.00/0.04	c 
0.00/0.04	c http://www.satlib.org/ubcsat
0.00/0.04	c 
0.00/0.04	c ubcsat -h for help
0.00/0.04	c 
0.00/0.04	c  -runs 1 
0.00/0.04	c  -cutoff 4294967295 
0.00/0.04	c  -timeout 0.000000 
0.00/0.04	c  -gtimeout 0.000000 
0.00/0.04	c  -noimprove 0 
0.00/0.04	c  -target 0 
0.00/0.04	c  -wtarget 0.000000 
0.00/0.04	c  -seed 414197929 
0.00/0.04	c  -solve 0 
0.00/0.04	c  -find,-numsol 0 
0.00/0.04	c  -findunique 0 
0.00/0.04	c  -srestart 0 
0.00/0.04	c  -prestart 0.000000 
0.00/0.04	c  -drestart 0 
0.00/0.04	c 
0.00/0.04	c  -alpha 1.300000 
0.00/0.04	c  -rho 0.800000 
0.00/0.04	c  -ps 0.050000 
0.00/0.04	c  -wp 0.010000 
0.00/0.04	c  -sapsthresh -0.100000 
0.00/0.04	c 
0.00/0.04	s SATISFIABLE
0.00/0.04	v  -1 -2 3 4 -5 6 -7 8 9 10
0.00/0.04	v  11 12 13 -14 -15 16 -17 18 -19 -20
0.00/0.04	v  -21 22 -23 24 25 26 -27 28 -29 -30
0.00/0.04	v  31 -32 -33 34 -35 -36 37 38 -39 40
0.00/0.04	v  41 42 -43 44 -45 -46 -47 48 -49 50
0.00/0.04	v  -51 -52 53 -54 55 56 57 -58 59 60
0.00/0.04	v  -61 -62 63 64 65 66 -67 -68 -69 -70
0.00/0.04	v  -71 -72 -73 -74 75 -76 -77 -78 -79 -80
0.00/0.04	v  81 -82 83 -84 85 -86 -87 -88 89 -90
0.00/0.04	v  91 -92 -93 -94 -95 -96 -97 98 99 -100
0.00/0.04	v  101 -102 -103 -104 -105 106 -107 -108 109 110
0.00/0.04	v  111 112 -113 114 -115 -116 117 118 -119 -120
0.00/0.04	v  121 122 123 124 -125 126 127 -128 129 -130
0.00/0.04	v  -131 132 -133 134 -135 -136 -137 138 139 140
0.00/0.04	v  141 -142 -143 144 -145 -146 -147 -148 -149 150
0.00/0.04	v  151 -152 153 -154 155 156 -157 158 -159 160
0.00/0.04	v  -161 162 163 -164 165 -166 167 168 -169 -170
0.00/0.04	v  -171 -172 -173 -174 175 -176 177 -178 179 180
0.00/0.04	v  181 182 -183 184 185 186 -187 -188 189 190
0.00/0.04	v  191 -192 -193 194 -195 196 197 198 -199 200
0.00/0.04	v  201 202 203 -204 -205 -206 207 -208 -209 -210
0.00/0.04	v  -211 212 213 -214 -215 216 217 -218 -219 220
0.00/0.04	v  -221 -222 223 224 -225 -226 227 -228 -229 230
0.00/0.04	v  -231 -232 233 234 235 -236 237 238 239 240
0.00/0.04	v  -241 242 243 -244 245 246 -247 -248 -249 -250
0.00/0.04	v  251 252 253 254 255 256 257 258 259 -260
0.00/0.04	v  -261 -262 263 -264 -265 -266 267 268 269 -270
0.00/0.04	v  271 -272 -273 -274 275 -276 -277 -278 279 -280
0.00/0.04	v  -281 -282 -283 -284 285 -286 287 -288 -289 -290
0.00/0.04	v  -291 292 293 -294 -295 296 -297 298 -299 -300
0.00/0.04	v  301 302 303 304 305 306 -307 308 -309 -310
0.00/0.04	v  -311 -312 -313 -314 315 -316 -317 318 -319 -320
0.00/0.04	v  -321 322 -323 324 325 -326 -327 328 -329 -330
0.00/0.04	v  331 332 -333 -334 -335 336 -337 338 339 -340
0.00/0.04	v  341 342 -343 -344 345 346 -347 348 349 350
0.00/0.04	v  351 352 353 -354 355 -356 357 358 359 360
0.00/0.04	v  361 -362 363 364 365 -366 -367 -368 369 370
0.00/0.04	v  371 -372 373 374 -375 376 377 378 379 -380
0.00/0.04	v  381 -382 -383 384 385 -386 -387 -388 389 390
0.00/0.04	v  391 392 393 394 -395 396 -397 398 399 -400
0.00/0.04	v  -401 -402 403 404 -405 406 -407 -408 -409 -410
0.00/0.04	v  411 412 -413 414 -415 -416 -417 418 419 -420
0.00/0.04	v  -421 -422 -423 -424 425 426 -427 -428 -429 430
0.00/0.04	v  -431 -432 433 434 -435 -436 -437 -438 439 -440
0.00/0.04	v  441 -442 443 444 445 446 -447 -448 -449 -450
0.00/0.04	v  0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node13/watcher-297781-1171845108 -o ROOT/results/node13/solver-297781-1171845108 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/297781-1171845108/saps /tmp/evaluation/297781-1171845108/instance-297781-1171845108.cnf 414197929 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.92 0.98 0.99 3/77 22661
/proc/meminfo: memFree=781360/2055920 swapFree=4192812/4192956
[pid=22661] ppid=22659 vsize=5156 CPUtime=0
/proc/22661/stat : 22661 (saps) R 22659 22661 21900 0 -1 4194304 175 0 0 0 0 0 0 0 18 0 1 0 204465276 5279744 159 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134696877 0 0 4096 0 0 0 0 17 1 0 0
/proc/22661/statm: 1289 159 77 159 0 1128 0

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

Child status: 10
Real time (s): 0.042912
CPU time (s): 0.040992
CPU user time (s): 0.039993
CPU system time (s): 0.000999
CPU usage (%): 95.5258
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.039993
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= 193
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 0.003999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node13 on Mon Feb 19 00:31:48 UTC 2007

IDJOB= 297781
IDBENCH= 19970
IDSOLVER= 103
FILE ID= node13/297781-1171845108

PBS_JOBID= 3839385

Free space on /tmp= 66540 MiB

SOLVER NAME= saps 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v450/unif-k3-r4.25-v450-c1912-S1483146927-18.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/297781-1171845108/saps /tmp/evaluation/297781-1171845108/instance-297781-1171845108.cnf  414197929   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-297781-1171845108 -o ROOT/results/node13/solver-297781-1171845108 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/297781-1171845108/saps /tmp/evaluation/297781-1171845108/instance-297781-1171845108.cnf  414197929   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  77e016deb256b6adc6e3dd66e59ef5da

RANDOM SEED= 414197929

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node13.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		: 3000.236
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		: 3000.236
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:        781768 kB
Buffers:         69836 kB
Cached:        1068756 kB
SwapCached:          0 kB
Active:         620672 kB
Inactive:       572340 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        781768 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2224 kB
Writeback:           0 kB
Mapped:          73312 kB
Slab:            66664 kB
Committed_AS:   874904 kB
PageTables:       1744 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= 66540 MiB

End job on node13 on Mon Feb 19 00:31:48 UTC 2007