Trace number 1632939

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 0.025995 0.0249219

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/440/
unif-k3-r4.25-v440-c1870-S1263695887-042.cnf
MD5SUM6b9d9c25eec439b73e50a5fc031019ea
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.013997
Satisfiable
(Un)Satisfiability was proved
Number of variables440
Number of clauses1870
Sum of the clauses size5610
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31870
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.02	c try 1 flip j 14685
0.00/0.02	c A solution is found
0.00/0.02	s SATISFIABLE
0.00/0.02	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 -421 -422 423 424 425 426 427 428 429 -430 431 -432 433 434 435 -436 437 -438 -439 -440 
0.00/0.02	v 0 
0.00/0.02	c Done (mycputime is 0.020 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-1632939-1240310922/watcher-1632939-1240310922 -o /tmp/evaluation-result-1632939-1240310922/solver-1632939-1240310922 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/TNM HOME/instance-1632939-1240310922.cnf 2089815496 

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: 0.86 1.02 0.99 3/64 7827
/proc/meminfo: memFree=885064/2055920 swapFree=4192956/4192956
[pid=7827] ppid=7825 vsize=451060 CPUtime=0
/proc/7827/stat : 7827 (TNM) R 7825 7827 6294 0 -1 4194304 134 0 0 0 0 0 0 0 18 0 1 0 59118559 461885440 118 1992294400 134512640 135094415 4294956240 18446744073709551615 134523791 0 0 4096 0 0 0 0 17 1 0 0
/proc/7827/statm: 112765 118 49 142 0 111644 0

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

Child status: 10
Real time (s): 0.0249219
CPU time (s): 0.025995
CPU user time (s): 0.023996
CPU system time (s): 0.001999
CPU usage (%): 104.306
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.023996
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 204
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= 2
involuntary context switches= 0

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node66 at 2009-04-21 12:48:42
IDJOB=1632939
IDBENCH=70701
IDSOLVER=589
FILE ID=node66/1632939-1240310922
PBS_JOBID= 9159935
Free space on /tmp= 66280 MiB

SOLVER NAME= TNM 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/440/unif-k3-r4.25-v440-c1870-S1263695887-042.cnf
COMMAND LINE= HOME/TNM BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1632939-1240310922/watcher-1632939-1240310922 -o /tmp/evaluation-result-1632939-1240310922/solver-1632939-1240310922 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/TNM HOME/instance-1632939-1240310922.cnf 2089815496

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

MD5SUM BENCH= 6b9d9c25eec439b73e50a5fc031019ea
RANDOM SEED=2089815496

node66.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		: 3000.263
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	: 5931.00
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		: 3000.263
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:        885544 kB
Buffers:         80860 kB
Cached:         981776 kB
SwapCached:          0 kB
Active:          88836 kB
Inactive:       987768 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        885544 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            5960 kB
Writeback:           0 kB
Mapped:          23684 kB
Slab:            79776 kB
Committed_AS:   373564 kB
PageTables:       1360 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= 66276 MiB
End job on node66 at 2009-04-21 12:48:42