Trace number 1778551

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 0.12 0.113657

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/440/
unif-k3-r4.25-v440-c1870-S1666821205-020.cnf
MD5SUMf4b3f375641fd9718c333ac8bdda10dc
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.12
Satisfiable
(Un)Satisfiability was proved
Number of variables440
Number of clauses1870
Sum of the clauses size5610
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31870
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 
0.04/0.09	s SATISFIABLE
0.04/0.09	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 0
0.04/0.10	c Done in 0.010000 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-1778551-1243480809/watcher-1778551-1243480809 -o /tmp/evaluation-result-1778551-1243480809/solver-1778551-1243480809 -C 5000 -W 1000 -M 2047 HOME/gnovelty+ HOME/instance-1778551-1243480809.cnf 2043424206 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: 1.98 3.32 3.79 3/109 6947
/proc/meminfo: memFree=707044/3368532 swapFree=1959840/1959888
[pid=6947] ppid=6945 vsize=509232 CPUtime=0
/proc/6947/stat : 6947 (gnovelty+) R 6945 6947 7955 0 -1 4202496 1387 0 0 0 0 0 0 0 18 0 1 0 1112743694 521453568 1343 4294967295 134512640 135680988 3218843920 3218843184 134537167 0 0 0 0 0 0 0 17 2 0 0 0
/proc/6947/statm: 127308 1352 99 286 0 127020 0

[startup+0.038642 s]
/proc/loadavg: 1.98 3.32 3.79 3/109 6947
/proc/meminfo: memFree=707044/3368532 swapFree=1959840/1959888
[pid=6947] ppid=6945 vsize=517044 CPUtime=0.04
/proc/6947/stat : 6947 (gnovelty+) R 6945 6947 7955 0 -1 4202496 10954 0 0 0 0 4 0 0 18 0 1 0 1112743694 529453056 10910 4294967295 134512640 135680988 3218843920 3218843184 134537842 0 0 0 0 0 0 0 17 2 0 0 0
/proc/6947/statm: 129261 10920 99 286 0 128973 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 517044

[startup+0.108635 s]
/proc/loadavg: 1.98 3.32 3.79 3/109 6947
/proc/meminfo: memFree=707044/3368532 swapFree=1959840/1959888
[pid=6947] ppid=6945 vsize=0 CPUtime=0.12
/proc/6947/stat : 6947 (gnovelty+) Z 6945 6947 7955 0 -1 4202500 19825 0 0 0 5 7 0 0 19 0 2 0 1112743694 0 0 4294967295 0 0 0 0 0 0 0 0 0 4294967295 0 0 17 0 0 0 0
/proc/6947/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.12
Current children cumulated vsize (KiB) 0

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

Child status: 10

# WARNING:
# CPU time reported by wait4() is probably wrong !
# wait4(...,&childrusage) returns 6947 and gives
#  childrusage.ru_utime.tv_sec=0
#  childrusage.ru_utime.tv_usec=50000
#  childrusage.ru_stime.tv_sec=0
#  childrusage.ru_stime.tv_usec=70000
# CPU time returned by wait4() is 0.12
# while last known CPU time is 0.12
#
# Solver probably didn't/couldn't wait for its children
# Using CPU time of the last sample as value...

Real time (s): 0.113657
CPU time (s): 0.12
CPU user time (s): 0.05
CPU system time (s): 0.07
CPU usage (%): 105.581
Max. virtual memory (cumulated for all children) (KiB): 517044

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.05
system time used= 0.07
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19825
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= 5
involuntary context switches= 6

runsolver used 0 second user time and 0 second system time

The end

Launcher Data 

Begin job on  at 2009-05-28 05:20:09
IDJOB=1778551
IDBENCH=70699
IDSOLVER=617
FILE ID=/1778551-1243480809
PBS_JOBID=
Free space on /tmp= 7987 MiB

SOLVER NAME= gNovelty+-T 2009-03-22 (4 threads)
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/440/unif-k3-r4.25-v440-c1870-S1666821205-020.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= runsolver --timestamp  -w /tmp/evaluation-result-1778551-1243480809/watcher-1778551-1243480809 -o /tmp/evaluation-result-1778551-1243480809/solver-1778551-1243480809 -C 5000 -W 1000 -M 2047  HOME/gnovelty+ HOME/instance-1778551-1243480809.cnf 2043424206 4

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

MD5SUM BENCH= f4b3f375641fd9718c333ac8bdda10dc
RANDOM SEED= 2043424206

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:        707488 kB
Buffers:         41908 kB
Cached:        2436964 kB
SwapCached:          0 kB
Active:        1299736 kB
Inactive:      1198296 kB
HighTotal:     2489216 kB
HighFree:       447864 kB
LowTotal:       879316 kB
LowFree:        259624 kB
SwapTotal:     1959888 kB
SwapFree:      1959840 kB
Dirty:            1620 kB
Writeback:           0 kB
AnonPages:       18968 kB
Mapped:           7772 kB
Slab:           153352 kB
SReclaimable:   138952 kB
SUnreclaim:      14400 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 05:20:09