Trace number 1528938

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+ 2009-03-22SAT 0.224965 0.22601

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/420/
unif-k3-r4.25-v420-c1785-S180439591-093.cnf
MD5SUM69b9fd52ab448c99d778e33811fd6518
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015997
Satisfiable
(Un)Satisfiability was proved
Number of variables420
Number of clauses1785
Sum of the clauses size5355
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31785
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.10/0.15	c +------------------------------+
0.10/0.15	c | gNovelty+, version 1.2       |
0.10/0.15	c +------------------------------+
0.10/0.15	c gnovelty+ -h for help
0.10/0.15	c 
0.10/0.15	finish initINstance()
0.10/0.15	c Problem instance: numAtoms = 420, numClauses = 1785, numLiterals = 5355
0.10/0.15	c General parameters: seed = 970850563, timeout = 10 secs, targetCost = 0, print solution: no
0.10/0.15	c gNovelty+ parameters: walkprob = 0.01, smoothprob = 0.40, noise = adaptive
0.10/0.15	c tries = 1
0.10/0.15	c 
0.19/0.21	     0    44116         0     44116     11068      0.06
0.19/0.21	s SATISFIABLE
0.19/0.21	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 0
0.19/0.21	c Done in 0.060000 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-1528938-1238574828/watcher-1528938-1238574828 -o /tmp/evaluation-result-1528938-1238574828/solver-1528938-1238574828 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1528938-1238574828.cnf 970850563 

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 1.09 1.40 3/68 23443
/proc/meminfo: memFree=1514224/2055920 swapFree=4175244/4192956
[pid=23443] ppid=23441 vsize=957772 CPUtime=0
/proc/23443/stat : 23443 (gnovelty+) R 23441 23443 23188 0 -1 4194304 798 0 0 0 0 0 0 0 18 0 1 0 1130144430 980758528 782 1992294400 134512640 135098890 4294956224 18446744073709551615 134517913 0 0 4096 0 0 0 0 17 1 0 0
/proc/23443/statm: 239443 788 47 143 0 239298 0

[startup+0.103917 s]
/proc/loadavg: 0.92 1.09 1.40 3/68 23443
/proc/meminfo: memFree=1514224/2055920 swapFree=4175244/4192956
[pid=23443] ppid=23441 vsize=958552 CPUtime=0.1
/proc/23443/stat : 23443 (gnovelty+) R 23441 23443 23188 0 -1 4194304 14009 0 0 0 4 6 0 0 18 0 1 0 1130144430 981557248 13992 1992294400 134512640 135098890 4294956224 18446744073709551615 134518515 0 0 4096 0 0 0 0 17 1 0 0
/proc/23443/statm: 239638 13997 48 143 0 239493 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 958552

[startup+0.201924 s]
/proc/loadavg: 0.92 1.09 1.40 3/68 23443
/proc/meminfo: memFree=1514224/2055920 swapFree=4175244/4192956
[pid=23443] ppid=23441 vsize=958552 CPUtime=0.19
/proc/23443/stat : 23443 (gnovelty+) R 23441 23443 23188 0 -1 4194304 19670 0 0 0 11 8 0 0 18 0 1 0 1130144430 981557248 19653 1992294400 134512640 135098890 4294956224 18446744073709551615 134514147 0 0 4096 0 0 0 0 17 1 0 0
/proc/23443/statm: 239638 19653 65 143 0 239493 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 958552

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

Child status: 10
Real time (s): 0.22601
CPU time (s): 0.224965
CPU user time (s): 0.13098
CPU system time (s): 0.093985
CPU usage (%): 99.5376
Max. virtual memory (cumulated for all children) (KiB): 958552

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.13098
system time used= 0.093985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19673
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= 2
involuntary context switches= 1

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node60 at 2009-04-01 10:33:48
IDJOB=1528938
IDBENCH=70667
IDSOLVER=536
FILE ID=node60/1528938-1238574828
PBS_JOBID= 9062201
Free space on /tmp= 66548 MiB

SOLVER NAME= gnovelty+ 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/420/unif-k3-r4.25-v420-c1785-S180439591-093.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1528938-1238574828/watcher-1528938-1238574828 -o /tmp/evaluation-result-1528938-1238574828/solver-1528938-1238574828 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1528938-1238574828.cnf 970850563

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 69b9fd52ab448c99d778e33811fd6518
RANDOM SEED=970850563

node60.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		: 3000.202
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		: 3000.202
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:       1514640 kB
Buffers:         96324 kB
Cached:         351704 kB
SwapCached:      11040 kB
Active:         218144 kB
Inactive:       243036 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1514640 kB
SwapTotal:     4192956 kB
SwapFree:      4175244 kB
Dirty:             684 kB
Writeback:           0 kB
Mapped:          18440 kB
Slab:            65636 kB
Committed_AS:  3432028 kB
PageTables:       1712 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66548 MiB
End job on node60 at 2009-04-01 10:33:49