Trace number 1778410

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 2009-03-22 (4 threads)SAT 2.35 0.715213

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/500/
unif-k3-r4.25-v500-c2125-S2056912842-027.cnf
MD5SUM14b591d0eb90ad9845c9a4137eb8ce97
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.35
Satisfiable
(Un)Satisfiability was proved
Number of variables500
Number of clauses2125
Sum of the clauses size6375
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32125
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.04/0.08	c +------------------------------+
0.04/0.08	c | gNovelty+, version 1.0       |
0.04/0.08	c +------------------------------+
0.04/0.08	c gnovelty+ -h for help
0.04/0.08	c 
2.01/0.70	s SATISFIABLE
2.01/0.70	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 -480 481 482 483 484 485 -486 487 -488 -489 490 491 492 493 494 -495 -496 -497 498 499 500 0
2.01/0.70	c Done in 1.170000 seconds

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:503) (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w /tmp/evaluation-result-1778410-1243480731/watcher-1778410-1243480731 -o /tmp/evaluation-result-1778410-1243480731/solver-1778410-1243480731 -C 5000 -W 1000 -M 2047 HOME/gnovelty+ HOME/instance-1778410-1243480731.cnf 474400594 4 

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): 1000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 2096128 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 2147328 KiB
Current StackSize limit: 8192 KiB


[startup+0 s]
/proc/loadavg: 3.55 3.92 4.01 3/109 4692
/proc/meminfo: memFree=709752/3368532 swapFree=1959840/1959888
[pid=4692] ppid=4690 vsize=509228 CPUtime=0
/proc/4692/stat : 4692 (gnovelty+) R 4690 4692 7955 0 -1 4202496 1315 0 0 0 0 0 0 0 18 0 1 0 1112735873 521449472 1271 4294967295 134512640 135680988 3215867440 3215866704 134537167 0 0 0 0 0 0 0 17 1 0 0 0
/proc/4692/statm: 127307 1278 99 286 0 127019 0

[startup+0.039635 s]
/proc/loadavg: 3.55 3.92 4.01 3/109 4692
/proc/meminfo: memFree=709752/3368532 swapFree=1959840/1959888
[pid=4692] ppid=4690 vsize=517040 CPUtime=0.04
/proc/4692/stat : 4692 (gnovelty+) R 4690 4692 7955 0 -1 4202496 11084 0 0 0 0 4 0 0 18 0 1 0 1112735873 529448960 11039 4294967295 134512640 135680988 3215867440 3215866704 134537905 0 0 0 0 0 0 0 17 1 0 0 0
/proc/4692/statm: 129260 11045 99 286 0 128972 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 517040

[startup+0.109643 s]
/proc/loadavg: 3.55 3.92 4.01 3/109 4692
/proc/meminfo: memFree=709752/3368532 swapFree=1959840/1959888
[pid=4692] ppid=4690 vsize=545800 CPUtime=0.13
/proc/4692/stat : 4692 (gnovelty+) R 4690 4692 7955 0 -1 4202496 19818 0 0 0 6 7 0 0 19 0 4 0 1112735873 558899200 19773 4294967295 134512640 135680988 3215867440 3215866636 134957681 0 0 0 0 4294967295 0 0 17 1 0 0 0
/proc/4692/statm: 136450 19773 103 286 0 136162 0
Current children cumulated CPU time (s) 0.13
Current children cumulated vsize (KiB) 545800

[startup+0.319638 s]
/proc/loadavg: 3.55 3.92 4.01 3/109 4692
/proc/meminfo: memFree=709752/3368532 swapFree=1959840/1959888
[pid=4692] ppid=4690 vsize=545800 CPUtime=0.89
/proc/4692/stat : 4692 (gnovelty+) R 4690 4692 7955 0 -1 4202496 19818 0 0 0 51 38 0 0 17 0 4 0 1112735873 558899200 19773 4294967295 134512640 135680988 3215867440 3215866684 134957422 0 0 0 0 4294967295 0 0 17 1 0 0 0
/proc/4692/statm: 136450 19773 103 286 0 136162 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 545800

[startup+0.709665 s]
/proc/loadavg: 3.55 3.92 4.01 3/109 4692
/proc/meminfo: memFree=709752/3368532 swapFree=1959840/1959888
[pid=4692] ppid=4690 vsize=0 CPUtime=2.35
/proc/4692/stat : 4692 (gnovelty+) Z 4690 4692 7955 0 -1 4202500 19833 0 0 0 120 115 0 0 15 0 2 0 1112735873 0 0 4294967295 0 0 0 0 0 0 0 0 0 4294967295 0 0 17 1 0 0 0
/proc/4692/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 2.35
Current children cumulated vsize (KiB) 0

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

Child status: 10
Real time (s): 0.715213
CPU time (s): 2.35
CPU user time (s): 1.2
CPU system time (s): 1.15
CPU usage (%): 328.573
Max. virtual memory (cumulated for all children) (KiB): 545800

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.2
system time used= 1.15
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19833
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= 61397
involuntary context switches= 91

runsolver used 0 second user time and 0.01 second system time

The end

Launcher Data 

Begin job on  at 2009-05-28 05:18:51
IDJOB=1778410
IDBENCH=70652
IDSOLVER=617
FILE ID=/1778410-1243480731
PBS_JOBID=
Free space on /tmp= 7987 MiB

SOLVER NAME= gNovelty+-T 2009-03-22 (4 threads)
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/500/unif-k3-r4.25-v500-c2125-S2056912842-027.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= runsolver --timestamp  -w /tmp/evaluation-result-1778410-1243480731/watcher-1778410-1243480731 -o /tmp/evaluation-result-1778410-1243480731/solver-1778410-1243480731 -C 5000 -W 1000 -M 2047  HOME/gnovelty+ HOME/instance-1778410-1243480731.cnf 474400594 4

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 2047 MiB
MAX NB THREAD= 4

MD5SUM BENCH= 14b591d0eb90ad9845c9a4137eb8ce97
RANDOM SEED= 474400594

Linux (none) 2.6.21.5 #6 SMP Wed Jul 4 17:16:38 CEST 2007 i686 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 15
model name	: Intel(R) Xeon(R) CPU            5130  @ 2.00GHz
stepping	: 6
cpu MHz		: 1995.073
cache size	: 4096 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 2
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 10
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 pbe lm constant_tsc pni monitor ds_cpl vmx tm2 ssse3 cx16 xtpr dca lahf_lm
bogomips	: 3992.42
clflush size	: 64

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 15
model name	: Intel(R) Xeon(R) CPU            5130  @ 2.00GHz
stepping	: 6
cpu MHz		: 1995.073
cache size	: 4096 KB
physical id	: 0
siblings	: 2
core id		: 1
cpu cores	: 2
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 10
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 pbe lm constant_tsc pni monitor ds_cpl vmx tm2 ssse3 cx16 xtpr dca lahf_lm
bogomips	: 3990.12
clflush size	: 64

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 15
model name	: Intel(R) Xeon(R) CPU            5130  @ 2.00GHz
stepping	: 6
cpu MHz		: 1995.073
cache size	: 4096 KB
physical id	: 3
siblings	: 2
core id		: 0
cpu cores	: 2
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 10
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 pbe lm constant_tsc pni monitor ds_cpl vmx tm2 ssse3 cx16 xtpr dca lahf_lm
bogomips	: 3990.14
clflush size	: 64

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 15
model name	: Intel(R) Xeon(R) CPU            5130  @ 2.00GHz
stepping	: 6
cpu MHz		: 1995.073
cache size	: 4096 KB
physical id	: 3
siblings	: 2
core id		: 1
cpu cores	: 2
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 10
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 pbe lm constant_tsc pni monitor ds_cpl vmx tm2 ssse3 cx16 xtpr dca lahf_lm
bogomips	: 3990.14
clflush size	: 64


/proc/meminfo:
MemTotal:      3368532 kB
MemFree:        710196 kB
Buffers:         41820 kB
Cached:        2435484 kB
SwapCached:          0 kB
Active:        1299636 kB
Inactive:      1196832 kB
HighTotal:     2489216 kB
HighFree:       449800 kB
LowTotal:       879316 kB
LowFree:        260396 kB
SwapTotal:     1959888 kB
SwapFree:      1959840 kB
Dirty:            1536 kB
Writeback:           0 kB
AnonPages:       18968 kB
Mapped:           7772 kB
Slab:           152676 kB
SReclaimable:   138724 kB
SUnreclaim:      13952 kB
PageTables:        656 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   3644152 kB
Committed_AS:   110896 kB
VmallocTotal:   114680 kB
VmallocUsed:      1444 kB
VmallocChunk:   113072 kB

Free space on /tmp at the end= 7987 MiB
End job on  at 2009-05-28 05:18:52