Trace number 371742

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 0.015997 0.0207081

General information on the benchmark

Namerandom/OnTreshold/3SAT/v450/
unif-k3-r4.25-v450-c1912-S1279599478-02.SAT.shuffled.cnf
MD5SUMb403a40368f0561878d5cbdd78a87179
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.009997
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)

0.00/0.01	c 
0.00/0.01	c UBCSAT version 1.1.0rr
0.00/0.01	c 
0.00/0.01	c http://www.satlib.org/ubcsat
0.00/0.01	c 
0.00/0.01	c ubcsat -h for help
0.00/0.01	c 
0.00/0.01	c  -runs 1 
0.00/0.01	c  -cutoff 4294967295 
0.00/0.01	c  -timeout 0.000000 
0.00/0.01	c  -gtimeout 0.000000 
0.00/0.01	c  -noimprove 0 
0.00/0.01	c  -target 0 
0.00/0.01	c  -wtarget 0.000000 
0.00/0.01	c  -seed 295199878 
0.00/0.01	c  -solve 0 
0.00/0.01	c  -find,-numsol 0 
0.00/0.01	c  -findunique 0 
0.00/0.01	c  -srestart 0 
0.00/0.01	c  -prestart 0.000000 
0.00/0.01	c  -drestart 0 
0.00/0.01	c 
0.00/0.01	c  -alpha 1.126000 
0.00/0.01	c  -rho 0.666000 
0.00/0.01	c  -ps 0.033000 
0.00/0.01	c  -wp 0.060000 
0.00/0.01	c  -sapsthresh -0.100000 
0.00/0.01	c 
0.00/0.01	s SATISFIABLE
0.00/0.01	v  1 2 -3 4 -5 -6 7 -8 -9 10
0.00/0.01	v  11 12 -13 -14 15 -16 -17 18 19 -20
0.00/0.01	v  -21 22 -23 -24 -25 -26 -27 -28 -29 30
0.00/0.01	v  31 32 -33 34 35 36 37 -38 -39 -40
0.00/0.01	v  41 42 -43 44 -45 46 47 48 49 50
0.00/0.01	v  -51 -52 53 54 55 -56 -57 58 59 -60
0.00/0.01	v  -61 62 -63 -64 65 66 67 68 -69 70
0.00/0.01	v  -71 72 -73 -74 -75 76 -77 78 -79 80
0.00/0.01	v  -81 82 -83 -84 -85 86 87 88 89 90
0.00/0.01	v  91 -92 -93 -94 -95 96 -97 98 -99 -100
0.00/0.01	v  -101 102 -103 104 -105 -106 107 -108 109 -110
0.00/0.01	v  -111 -112 113 -114 -115 -116 117 -118 -119 120
0.00/0.01	v  121 122 123 -124 125 -126 -127 128 -129 -130
0.00/0.01	v  131 -132 133 134 -135 -136 137 138 139 -140
0.00/0.01	v  141 -142 -143 144 -145 146 -147 -148 -149 150
0.00/0.01	v  151 152 -153 154 -155 156 -157 158 159 160
0.00/0.01	v  161 162 163 -164 165 166 167 168 169 -170
0.00/0.01	v  171 172 -173 174 175 176 -177 -178 -179 180
0.00/0.01	v  181 -182 183 184 185 -186 -187 -188 -189 -190
0.00/0.01	v  191 -192 -193 194 -195 -196 -197 198 199 200
0.00/0.01	v  -201 202 -203 -204 -205 206 -207 208 -209 -210
0.00/0.01	v  211 -212 213 -214 -215 216 217 -218 219 220
0.00/0.01	v  221 -222 223 -224 -225 -226 227 228 -229 230
0.00/0.01	v  231 232 233 -234 235 236 237 -238 -239 240
0.00/0.01	v  -241 242 243 244 245 246 -247 -248 -249 -250
0.00/0.01	v  -251 252 -253 254 255 -256 257 258 259 260
0.00/0.01	v  261 -262 263 264 -265 -266 267 -268 269 270
0.00/0.01	v  -271 -272 273 274 -275 276 277 278 279 -280
0.00/0.01	v  281 -282 283 284 285 286 -287 -288 289 -290
0.00/0.01	v  291 292 -293 -294 295 296 -297 -298 299 -300
0.00/0.01	v  301 -302 -303 -304 -305 -306 -307 -308 309 310
0.00/0.01	v  311 -312 313 314 315 -316 317 -318 319 -320
0.00/0.01	v  321 322 -323 -324 -325 -326 327 -328 329 330
0.00/0.01	v  331 -332 -333 334 335 -336 -337 338 -339 340
0.00/0.01	v  341 342 343 344 345 -346 347 -348 349 -350
0.00/0.01	v  -351 352 -353 -354 355 356 -357 -358 -359 360
0.00/0.01	v  -361 -362 363 364 365 366 367 -368 369 -370
0.00/0.01	v  371 372 -373 374 375 -376 -377 378 379 380
0.00/0.01	v  -381 382 383 -384 385 -386 -387 388 -389 390
0.00/0.01	v  391 392 393 -394 -395 -396 -397 398 -399 -400
0.00/0.01	v  401 402 -403 -404 -405 406 407 -408 -409 410
0.00/0.01	v  411 -412 413 414 -415 -416 -417 418 419 420
0.00/0.01	v  421 -422 -423 -424 425 426 -427 -428 -429 430
0.00/0.01	v  -431 432 -433 434 435 -436 -437 438 -439 -440
0.00/0.01	v  441 -442 -443 444 445 -446 -447 448 -449 -450
0.00/0.01	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/node33/watcher-371742-1177545262 -o ROOT/results/node33/solver-371742-1177545262 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371742-1177545262/sapsrt /tmp/evaluation/371742-1177545262/instance-371742-1177545262.cnf 295199878 

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: 0.03 0.22 0.36 3/77 1152
/proc/meminfo: memFree=1847160/2055920 swapFree=4147684/4192956
[pid=1152] ppid=1150 vsize=5156 CPUtime=0
/proc/1152/stat : 1152 (sapsrt) R 1150 1152 1098 0 -1 4194304 180 0 0 0 0 0 0 0 18 0 1 0 202441823 5279744 165 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134714292 0 0 4096 0 0 0 0 17 1 0 0
/proc/1152/statm: 1289 165 83 159 0 1128 0

[startup+0.01843 s]
/proc/loadavg: 0.03 0.22 0.36 3/77 1152
/proc/meminfo: memFree=1847160/2055920 swapFree=4147684/4192956
[pid=1152] ppid=1150 vsize=0 CPUtime=0.01
/proc/1152/stat : 1152 (sapsrt) D 1150 1152 1098 0 -1 4194308 195 0 0 0 1 0 0 0 18 0 1 0 202441823 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 18446744072100051646 0 0 17 1 0 0
/proc/1152/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 0

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

[startup+0.01843 s]
/proc/loadavg: 0.03 0.22 0.36 3/77 1152
/proc/meminfo: memFree=1847160/2055920 swapFree=4147684/4192956
[pid=1152] ppid=1150 vsize=0 CPUtime=0.01
/proc/1152/stat : 1152 (sapsrt) D 1150 1152 1098 0 -1 4194308 195 0 0 0 1 0 0 0 18 0 1 0 202441823 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 18446744072100051646 0 0 17 1 0 0
/proc/1152/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 0

Child status: 10
Real time (s): 0.0207081
CPU time (s): 0.015997
CPU user time (s): 0.015997
CPU system time (s): 0
CPU usage (%): 77.2501
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.015997
system time used= 0
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 0.004999 second user time and 0.002999 second system time

The end

Launcher Data (download as text)

Begin job on node33 on Wed Apr 25 23:54:23 UTC 2007

IDJOB= 371742
IDBENCH= 19976
IDSOLVER= 187
FILE ID= node33/371742-1177545262

PBS_JOBID= 4696361

Free space on /tmp= 66490 MiB

SOLVER NAME= sapsrt 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v450/unif-k3-r4.25-v450-c1912-S1279599478-02.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/371742-1177545262/sapsrt /tmp/evaluation/371742-1177545262/instance-371742-1177545262.cnf  295199878       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node33/watcher-371742-1177545262 -o ROOT/results/node33/solver-371742-1177545262 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371742-1177545262/sapsrt /tmp/evaluation/371742-1177545262/instance-371742-1177545262.cnf  295199878       

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  b403a40368f0561878d5cbdd78a87179

RANDOM SEED= 295199878

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node33.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		: 3000.272
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		: 3000.272
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:       1847632 kB
Buffers:         38508 kB
Cached:         103720 kB
SwapCached:      14240 kB
Active:          56208 kB
Inactive:       109352 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1847632 kB
SwapTotal:     4192956 kB
SwapFree:      4147684 kB
Dirty:            2204 kB
Writeback:           0 kB
Mapped:          29748 kB
Slab:            28092 kB
Committed_AS:  1821684 kB
PageTables:       1992 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= 66490 MiB

End job on node33 on Wed Apr 25 23:54:24 UTC 2007