Trace number 1543172

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 0.166973 0.155032

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/460/
unif-k3-r4.25-v460-c1955-S321371087-018.cnf
MD5SUMb036614b8a0cd434fa1df7a69038371b
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007998
Satisfiable
(Un)Satisfiability was proved
Number of variables460
Number of clauses1955
Sum of the clauses size5865
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31955
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.09/0.12	c +------------------------------+
0.09/0.12	c | gNovelty+, version 1.0       |
0.09/0.12	c +------------------------------+
0.09/0.12	c gnovelty+ -h for help
0.09/0.12	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 -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 -441 -442 443 -444 -445 446 447 -448 -449 450 451 -452 453 -454 455 -456 -457 458 -459 -460 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-1543172-1238593182/watcher-1543172-1238593182 -o /tmp/evaluation-result-1543172-1238593182/solver-1543172-1238593182 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1543172-1238593182.cnf 575889414 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: 1.00 1.07 1.19 3/73 28420
/proc/meminfo: memFree=1449920/2055920 swapFree=4164824/4192956
[pid=28420] ppid=28418 vsize=509152 CPUtime=0
/proc/28420/stat : 28420 (gnovelty+) R 28418 28420 28101 0 -1 4194304 1192 0 0 0 0 0 0 0 20 0 1 0 1131983038 521371648 1177 1992294400 134512640 135680988 4294956192 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/28420/statm: 127288 1184 102 285 0 127000 0

[startup+0.0930489 s]
/proc/loadavg: 1.00 1.07 1.19 3/73 28420
/proc/meminfo: memFree=1449920/2055920 swapFree=4164824/4192956
[pid=28420] ppid=28418 vsize=516964 CPUtime=0.08
/proc/28420/stat : 28420 (gnovelty+) R 28418 28420 28101 0 -1 4194304 15540 0 0 0 2 6 0 0 20 0 1 0 1131983038 529371136 15524 1992294400 134512640 135680988 4294956192 18446744073709551615 134537779 0 0 4096 0 0 0 0 17 1 0 0
/proc/28420/statm: 129241 15529 102 285 0 128953 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 516964

[startup+0.101048 s]
/proc/loadavg: 1.00 1.07 1.19 3/73 28420
/proc/meminfo: memFree=1449920/2055920 swapFree=4164824/4192956
[pid=28420] ppid=28418 vsize=516964 CPUtime=0.09
/proc/28420/stat : 28420 (gnovelty+) R 28418 28420 28101 0 -1 4194304 16562 0 0 0 3 6 0 0 20 0 1 0 1131983038 529371136 16546 1992294400 134512640 135680988 4294956192 18446744073709551615 134537968 0 0 4096 0 0 0 0 17 1 0 0
/proc/28420/statm: 129241 16551 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): 0.155032
CPU time (s): 0.166973
CPU user time (s): 0.067989
CPU system time (s): 0.098984
CPU usage (%): 107.702
Max. virtual memory (cumulated for all children) (KiB): 516964

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.067989
system time used= 0.098984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19754
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= 3
involuntary context switches= 1

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node81 at 2009-04-01 15:39:42
IDJOB=1543172
IDBENCH=70725
IDSOLVER=550
FILE ID=node81/1543172-1238593182
PBS_JOBID= 9062246
Free space on /tmp= 126316 MiB

SOLVER NAME= gNovelty+-T 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/460/unif-k3-r4.25-v460-c1955-S321371087-018.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1543172-1238593182/watcher-1543172-1238593182 -o /tmp/evaluation-result-1543172-1238593182/solver-1543172-1238593182 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1543172-1238593182.cnf 575889414 2

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

MD5SUM BENCH= b036614b8a0cd434fa1df7a69038371b
RANDOM SEED=575889414

node81.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		: 3000.220
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		: 3000.220
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:       1450336 kB
Buffers:         89832 kB
Cached:         414044 kB
SwapCached:      19112 kB
Active:         325916 kB
Inactive:       198812 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1450336 kB
SwapTotal:     4192956 kB
SwapFree:      4164824 kB
Dirty:            1456 kB
Writeback:           0 kB
Mapped:          26536 kB
Slab:            65660 kB
Committed_AS:  3026972 kB
PageTables:       2084 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= 126316 MiB
End job on node81 at 2009-04-01 15:39:42