Trace number 1543126

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 2009-03-22SAT 0.040993 0.0245761

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/480/
unif-k3-r4.25-v480-c2040-S1002348653-090.cnf
MD5SUMc369517cece9ac5de13f6444259c5dd0
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011998
Satisfiable
(Un)Satisfiability was proved
Number of variables480
Number of clauses2040
Sum of the clauses size6120
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32040
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 
0.00/0.02	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 -441 442 443 444 445 446 -447 448 -449 -450 451 -452 -453 454 455 456 -457 458 459 460 -461 462 -463 -464 -465 -466 467 -468 469 470 471 472 -473 -474 475 -476 -477 -478 479 480 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-1543126-1238590207/watcher-1543126-1238590207 -o /tmp/evaluation-result-1543126-1238590207/solver-1543126-1238590207 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1543126-1238590207.cnf 156086646 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: 0.92 0.99 1.15 3/64 733
/proc/meminfo: memFree=1030856/2055920 swapFree=4176444/4192956
[pid=733] ppid=731 vsize=71136 CPUtime=0
/proc/733/stat : 733 (gnovelty+) R 731 733 640 0 -1 4194304 191 0 0 0 0 0 0 0 20 0 2 0 1131686078 72843264 175 1992294400 134512640 135728688 4294956192 18446744073709551615 134529140 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/733/statm: 17784 175 104 296 0 17485 0
[pid=733/tid=734] ppid=731 vsize=71136 CPUtime=0
/proc/733/task/734/stat : 734 (gnovelty+) R 731 733 640 0 -1 4194368 0 0 0 0 0 0 0 0 22 0 2 0 1131686078 72843264 175 1992294400 134512640 135728688 4294956192 18446744073709551615 135205972 0 0 4096 0 0 0 0 -1 1 0 0

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

Child status: 10
Real time (s): 0.0245761
CPU time (s): 0.040993
CPU user time (s): 0.036994
CPU system time (s): 0.003999
CPU usage (%): 166.8
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.036994
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 205
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= 0

runsolver used 0.001999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node27 at 2009-04-01 14:50:07
IDJOB=1543126
IDBENCH=70717
IDSOLVER=552
FILE ID=node27/1543126-1238590207
PBS_JOBID= 9068317
Free space on /tmp= 65720 MiB

SOLVER NAME= gNovelty+-V.2-T 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/480/unif-k3-r4.25-v480-c2040-S1002348653-090.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1543126-1238590207/watcher-1543126-1238590207 -o /tmp/evaluation-result-1543126-1238590207/solver-1543126-1238590207 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1543126-1238590207.cnf 156086646 2

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

MD5SUM BENCH= c369517cece9ac5de13f6444259c5dd0
RANDOM SEED=156086646

node27.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		: 2800.196
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	: 5521.40
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		: 2800.196
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:       1031272 kB
Buffers:         95940 kB
Cached:         824468 kB
SwapCached:       9492 kB
Active:         203956 kB
Inactive:       727508 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1031272 kB
SwapTotal:     4192956 kB
SwapFree:      4176444 kB
Dirty:            1628 kB
Writeback:           0 kB
Mapped:          16740 kB
Slab:            79016 kB
Committed_AS:  2997528 kB
PageTables:       1380 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 65716 MiB
End job on node27 at 2009-04-01 14:50:07