Trace number 1543173

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+-V.2-T-H 2009-03-22SAT 0.020996 0.0148189

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 

0.00/0.00	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 
0.00/0.01	s SATISFIABLE
0.00/0.01	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

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-1543173-1238593182/watcher-1543173-1238593182 -o /tmp/evaluation-result-1543173-1238593182/solver-1543173-1238593182 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1543173-1238593182.cnf 1081375842 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 28448
/proc/meminfo: memFree=1449792/2055920 swapFree=4164824/4192956
[pid=28448] ppid=28446 vsize=71332 CPUtime=0
/proc/28448/stat : 28448 (gnovelty+) R 28446 28448 28101 0 -1 4194304 242 0 0 0 0 0 0 0 20 0 2 0 1131983070 73043968 178 1992294400 134512640 135730148 4294956192 18446744073709551615 134527921 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/28448/statm: 17833 178 106 297 0 17533 0
[pid=28448/tid=28449] ppid=28446 vsize=71332 CPUtime=0
/proc/28448/task/28449/stat : 28449 (gnovelty+) R 28446 28448 28101 0 -1 4194368 30 0 0 0 0 0 0 0 21 0 2 0 1131983070 73043968 178 1992294400 134512640 135730148 4294956192 18446744073709551615 134529592 0 0 4096 0 0 0 0 -1 1 0 0

[startup+0.0100349 s]
/proc/loadavg: 1.00 1.07 1.19 3/73 28448
/proc/meminfo: memFree=1449792/2055920 swapFree=4164824/4192956
[pid=28448] ppid=0 vsize=0 CPUtime=0
/proc/28448/stat : 28448 (gnovelty+) X 0 -1 -1 0 -1 4194316 0 0 0 0 0 0 0 0 16 0 0 0 1131983070 0 0 1992294400 0 0 0 0 0 0 0 0 0 18446744071563351923 0 0 17 1 0 0
/proc/28448/statm: -- couldn't open statm file --Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0

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

[startup+0.0100349 s]
/proc/loadavg: 1.00 1.07 1.19 3/73 28448
/proc/meminfo: memFree=1449792/2055920 swapFree=4164824/4192956
[pid=28448] ppid=0 vsize=0 CPUtime=0
/proc/28448/stat : 28448 (gnovelty+) X 0 -1 -1 0 -1 4194316 0 0 0 0 0 0 0 0 16 0 0 0 1131983070 0 0 1992294400 0 0 0 0 0 0 0 0 0 18446744071563351923 0 0 17 1 0 0
/proc/28448/statm: -- couldn't open statm file --Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0

Child status: 10
Real time (s): 0.0148189
CPU time (s): 0.020996
CPU user time (s): 0.020996
CPU system time (s): 0
CPU usage (%): 141.684
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.020996
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= 304
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= 4
involuntary context switches= 2

runsolver used 0.005999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node81 at 2009-04-01 15:39:42
IDJOB=1543173
IDBENCH=70725
IDSOLVER=551
FILE ID=node81/1543173-1238593182
PBS_JOBID= 9062246
Free space on /tmp= 126316 MiB

SOLVER NAME= gNovelty+-V.2-T-H 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-1543173-1238593182/watcher-1543173-1238593182 -o /tmp/evaluation-result-1543173-1238593182/solver-1543173-1238593182 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1543173-1238593182.cnf 1081375842 2

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

MD5SUM BENCH= b036614b8a0cd434fa1df7a69038371b
RANDOM SEED=1081375842

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:       1450208 kB
Buffers:         89844 kB
Cached:         414100 kB
SwapCached:      19112 kB
Active:         325984 kB
Inactive:       198816 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1450208 kB
SwapTotal:     4192956 kB
SwapFree:      4164824 kB
Dirty:            1500 kB
Writeback:           0 kB
Mapped:          26536 kB
Slab:            65672 kB
Committed_AS:  3026988 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