Trace number 1632831

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
TNM 2009-03-22SAT 0.039993 0.0411849

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/420/
unif-k3-r4.25-v420-c1785-S1362286908-061.cnf
MD5SUM647005b2285214f4136823936a28bcc9
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.017997
Satisfiable
(Un)Satisfiability was proved
Number of variables420
Number of clauses1785
Sum of the clauses size5355
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31785
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.04	c try 1 flip j 32187
0.00/0.04	c A solution is found
0.00/0.04	s SATISFIABLE
0.00/0.04	v -1 2 3 4 -5 -6 -7 -8 -9 10 11 -12 -13 -14 15 -16 17 18 -19 -20 -21 22 -23 24 25 -26 27 -28 29 30 -31 -32 33 -34 -35 -36 37 -38 39 40 41 42 43 44 -45 46 -47 48 49 50 -51 -52 -53 54 55 -56 57 58 59 60 -61 -62 -63 -64 -65 66 -67 -68 -69 -70 -71 72 73 74 75 -76 -77 78 79 -80 -81 82 83 -84 85 -86 87 -88 89 -90 -91 -92 93 94 -95 96 97 -98 -99 -100 -101 -102 -103 -104 105 -106 107 108 -109 110 -111 -112 -113 -114 -115 -116 -117 -118 119 -120 -121 -122 -123 124 -125 126 127 -128 129 -130 -131 132 133 134 -135 136 137 -138 -139 140 141 -142 143 -144 -145 146 -147 148 -149 -150 151 152 153 154 155 156 -157 158 -159 160 -161 -162 163 -164 165 -166 167 -168 -169 170 -171 172 -173 -174 -175 -176 177 178 179 -180 -181 182 -183 -184 -185 -186 187 188 189 -190 -191 -192 -193 194 -195 196 -197 -198 -199 -200 201 -202 203 204 205 -206 207 -208 209 -210 211 -212 213 214 -215 -216 217 -218 -219 220 221 -222 -223 224 225 -226 227 -228 229 230 -231 -232 233 -234 235 -236 -237 -238 -239 -240 241 -242 -243 -244 245 246 247 -248 -249 -250 -251 252 -253 -254 -255 256 -257 258 -259 260 261 262 -263 -264 265 -266 267 -268 -269 -270 271 -272 273 274 275 276 277 -278 -279 -280 281 282 -283 -284 285 286 287 288 -289 290 -291 -292 -293 -294 295 -296 -297 -298 -299 300 -301 302 -303 -304 -305 -306 -307 308 309 310 -311 312 -313 -314 -315 316 -317 318 319 320 -321 322 323 324 -325 326 327 328 329 -330 331 332 -333 334 335 -336 337 -338 339 -340 -341 -342 -343 344 -345 -346 347 348 -349 350 -351 352 353 -354 -355 356 357 -358 -359 360 361 -362 363 364 -365 -366 -367 368 -369 -370 -371 -372 373 374 375 376 -377 -378 -379 380 381 -382 383 -384 -385 -386 -387 388 389 -390 391 -392 393 -394 -395 -396 -397 -398 -399 -400 -401 -402 403 -404 -405 406 407 408 -409 -410 411 412 413 -414 415 416 -417 418 419 420 
0.00/0.04	v 0 
0.00/0.04	c Done (mycputime is 0.040 seconds)

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1632831-1240310684/watcher-1632831-1240310684 -o /tmp/evaluation-result-1632831-1240310684/solver-1632831-1240310684 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/TNM HOME/instance-1632831-1240310684.cnf 131203764 

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): 6000 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: 0.93 0.98 0.99 2/65 6239
/proc/meminfo: memFree=895576/2055920 swapFree=4192952/4192956
[pid=6239] ppid=6237 vsize=450928 CPUtime=0
/proc/6239/stat : 6239 (TNM) R 6237 6239 5246 0 -1 4194304 129 0 0 0 0 0 0 0 20 0 1 0 59102167 461750272 113 1992294400 134512640 135094415 4294956240 18446744073709551615 134579382 0 0 4096 0 0 0 0 17 1 0 0
/proc/6239/statm: 112732 113 49 142 0 111611 0

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

Child status: 10
Real time (s): 0.0411849
CPU time (s): 0.039993
CPU user time (s): 0.039993
CPU system time (s): 0
CPU usage (%): 97.106
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.039993
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= 199
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= 1
involuntary context switches= 1

runsolver used 0.003999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node8 at 2009-04-21 12:44:44
IDJOB=1632831
IDBENCH=70665
IDSOLVER=589
FILE ID=node8/1632831-1240310684
PBS_JOBID= 9159939
Free space on /tmp= 66180 MiB

SOLVER NAME= TNM 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/420/unif-k3-r4.25-v420-c1785-S1362286908-061.cnf
COMMAND LINE= HOME/TNM BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1632831-1240310684/watcher-1632831-1240310684 -o /tmp/evaluation-result-1632831-1240310684/solver-1632831-1240310684 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/TNM HOME/instance-1632831-1240310684.cnf 131203764

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 647005b2285214f4136823936a28bcc9
RANDOM SEED=131203764

node8.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		: 3000.238
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		: 3000.238
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:        896056 kB
Buffers:         49192 kB
Cached:        1019900 kB
SwapCached:          4 kB
Active:          93248 kB
Inactive:       990136 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        896056 kB
SwapTotal:     4192956 kB
SwapFree:      4192952 kB
Dirty:            5452 kB
Writeback:           0 kB
Mapped:          24064 kB
Slab:            62260 kB
Committed_AS:   325264 kB
PageTables:       1372 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= 66176 MiB
End job on node8 at 2009-04-21 12:44:45