Trace number 1542956

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+-T 2009-03-22SAT 0.166974 0.15587

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 benchmark0.016996
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 

0.09/0.13	c +------------------------------+
0.09/0.13	c | gNovelty+, version 1.0       |
0.09/0.13	c +------------------------------+
0.09/0.13	c gnovelty+ -h for help
0.09/0.13	c 
0.09/0.14	s SATISFIABLE
0.09/0.14	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
0.09/0.14	c Done in 0.020000 seconds

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1542956-1238581359/watcher-1542956-1238581359 -o /tmp/evaluation-result-1542956-1238581359/solver-1542956-1238581359 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1542956-1238581359.cnf 794976843 2 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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: 1.99 1.85 1.45 3/65 22856
/proc/meminfo: memFree=1458456/2055920 swapFree=4177700/4192956
[pid=22856] ppid=22854 vsize=509152 CPUtime=0
/proc/22856/stat : 22856 (gnovelty+) R 22854 22856 22306 0 -1 4194304 1026 0 0 0 0 0 0 0 18 0 1 0 1130798131 521371648 1011 1992294400 134512640 135680988 4294956192 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/22856/statm: 127288 1020 102 285 0 127000 0

[startup+0.023642 s]
/proc/loadavg: 1.99 1.85 1.45 3/65 22856
/proc/meminfo: memFree=1458456/2055920 swapFree=4177700/4192956
[pid=22856] ppid=22854 vsize=509152 CPUtime=0.01
/proc/22856/stat : 22856 (gnovelty+) R 22854 22856 22306 0 -1 4194304 4902 0 0 0 0 1 0 0 18 0 1 0 1130798131 521371648 4888 1992294400 134512640 135680988 4294956192 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/22856/statm: 127288 4895 102 285 0 127000 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 509152

[startup+0.101656 s]
/proc/loadavg: 1.99 1.85 1.45 3/65 22856
/proc/meminfo: memFree=1458456/2055920 swapFree=4177700/4192956
[pid=22856] ppid=22854 vsize=516964 CPUtime=0.09
/proc/22856/stat : 22856 (gnovelty+) R 22854 22856 22306 0 -1 4194304 16172 0 0 0 3 6 0 0 18 0 1 0 1130798131 529371136 16156 1992294400 134512640 135680988 4294956192 18446744073709551615 134537708 0 0 4096 0 0 0 0 17 1 0 0
/proc/22856/statm: 129241 16161 102 285 0 128953 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 516964

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

Child status: 10
Real time (s): 0.15587
CPU time (s): 0.166974
CPU user time (s): 0.071989
CPU system time (s): 0.094985
CPU usage (%): 107.124
Max. virtual memory (cumulated for all children) (KiB): 516964

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.071989
system time used= 0.094985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19746
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= 6
involuntary context switches= 1

runsolver used 0.000999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node56 at 2009-04-01 12:22:39
IDJOB=1542956
IDBENCH=70689
IDSOLVER=550
FILE ID=node56/1542956-1238581359
PBS_JOBID= 9062196
Free space on /tmp= 103044 MiB

SOLVER NAME= gNovelty+-T 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S1767425240-073.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1542956-1238581359/watcher-1542956-1238581359 -o /tmp/evaluation-result-1542956-1238581359/solver-1542956-1238581359 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1542956-1238581359.cnf 794976843 2

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 2

MD5SUM BENCH= a3570ddee79c19b1c54131a205337743
RANDOM SEED=794976843

node56.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		: 3000.256
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		: 3000.256
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:       1458872 kB
Buffers:         95628 kB
Cached:         402280 kB
SwapCached:       9032 kB
Active:         224944 kB
Inactive:       283404 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1458872 kB
SwapTotal:     4192956 kB
SwapFree:      4177700 kB
Dirty:            1444 kB
Writeback:           0 kB
Mapped:          16152 kB
Slab:            74656 kB
Committed_AS:  2733524 kB
PageTables:       1472 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= 103044 MiB
End job on node56 at 2009-04-01 12:22:39