Trace number 1629854

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
gnovelty+2 2009-03-22SAT 0.047992 0.04897

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/400/
unif-k3-r4.25-v400-c1700-S1767425240-073.cnf
MD5SUMa3570ddee79c19b1c54131a205337743
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.022996
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1700
Sum of the clauses size5100
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31700
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c +------------------------------+
0.00/0.00	c | gNovelty+, version 2.0       |
0.00/0.00	c +------------------------------+
0.00/0.00	c gnovelty+ -h for help
0.00/0.00	c 
0.00/0.00	c Problem instance: numAtoms = 400, numClauses = 1700
0.00/0.00	c General parameters: seed = 441367558, timeout = 10 secs, targetCost = 0, print solution: no
0.00/0.00	c gNovelty+ parameters: walkprob = 0.01, smoothprob = 0.40, noise = adaptive
0.00/0.00	c tries = 1
0.00/0.00	c 
0.00/0.04	c      0    32475         0     32475      8809      0.04
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 0
0.00/0.04	c Done in 0.040000 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-1629854-1240141681/watcher-1629854-1240141681 -o /tmp/evaluation-result-1629854-1240141681/solver-1629854-1240141681 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/gnovelty+2 HOME/instance-1629854-1240141681.cnf 441367558 

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: 1.00 1.00 1.00 2/64 23225
/proc/meminfo: memFree=1017568/2055920 swapFree=4192956/4192956
[pid=23225] ppid=23223 vsize=1017720 CPUtime=0
/proc/23225/stat : 23225 (gnovelty+2) R 23223 23225 22971 0 -1 4194304 184 0 0 0 0 0 0 0 18 0 1 0 42195362 1042145280 167 1992294400 134512640 135663704 4294956224 18446744073709551615 134546465 0 0 4096 0 0 0 0 17 1 0 0
/proc/23225/statm: 254430 167 112 281 0 254146 0

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

Child status: 10
Real time (s): 0.04897
CPU time (s): 0.047992
CPU user time (s): 0.047992
CPU system time (s): 0
CPU usage (%): 98.0028
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.047992
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= 188
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= 7

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node58 at 2009-04-19 13:48:01
IDJOB=1629854
IDBENCH=70689
IDSOLVER=585
FILE ID=node58/1629854-1240141681
PBS_JOBID= 9157848
Free space on /tmp= 66348 MiB

SOLVER NAME= gnovelty+2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S1767425240-073.cnf
COMMAND LINE= HOME/gnovelty+2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1629854-1240141681/watcher-1629854-1240141681 -o /tmp/evaluation-result-1629854-1240141681/solver-1629854-1240141681 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/gnovelty+2 HOME/instance-1629854-1240141681.cnf 441367558

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

MD5SUM BENCH= a3570ddee79c19b1c54131a205337743
RANDOM SEED=441367558

node58.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		: 3000.233
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		: 3000.233
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:       1017992 kB
Buffers:         82276 kB
Cached:         877748 kB
SwapCached:          0 kB
Active:         390148 kB
Inactive:       583816 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1017992 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1704 kB
Writeback:           0 kB
Mapped:          23696 kB
Slab:            49984 kB
Committed_AS:   164688 kB
PageTables:       1356 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= 66348 MiB
End job on node58 at 2009-04-19 13:48:01