Trace number 1534458

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
adaptg2wsat2009++ 2009-03-23SAT 0.014997 0.015951

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/420/
unif-k3-r4.25-v420-c1785-S1362286908-061.cnf
MD5SUM647005b2285214f4136823936a28bcc9
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014997
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 

0.00/0.01	c 0 clauses are redundant and removed
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.01	c initial seed is 1316271417
0.00/0.01	c try 1 flip j 5802 walk 4549 seed 1593698747
0.00/0.01	c A solution is found
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 
0.00/0.01	v 0 
0.00/0.01	c Done (mycputime is 0.010 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-1534458-1238574429/watcher-1534458-1238574429 -o /tmp/evaluation-result-1534458-1238574429/solver-1534458-1238574429 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009++ HOME/instance-1534458-1238574429.cnf 1316271417 

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: 0.99 0.98 0.99 3/64 21828
/proc/meminfo: memFree=1477696/2055920 swapFree=4177768/4192956
[pid=21828] ppid=21826 vsize=415928 CPUtime=0
/proc/21828/stat : 21828 (adaptg2wsat2009) R 21826 21828 21176 0 -1 4194304 136 0 0 0 0 0 0 0 18 0 1 0 1130109769 425910272 119 1992294400 134512640 135107411 4294956192 18446744073709551615 134523432 0 0 4096 0 0 0 0 17 1 0 0
/proc/21828/statm: 103982 119 49 145 0 102858 0

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

Child status: 10
Real time (s): 0.015951
CPU time (s): 0.014997
CPU user time (s): 0.014997
CPU system time (s): 0
CPU usage (%): 94.019
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.014997
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= 209
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= 0

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node2 at 2009-04-01 10:27:09
IDJOB=1534458
IDBENCH=70665
IDSOLVER=543
FILE ID=node2/1534458-1238574429
PBS_JOBID= 9070524
Free space on /tmp= 66496 MiB

SOLVER NAME= adaptg2wsat2009++ 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/420/unif-k3-r4.25-v420-c1785-S1362286908-061.cnf
COMMAND LINE= HOME/adaptg2wsat2009++ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534458-1238574429/watcher-1534458-1238574429 -o /tmp/evaluation-result-1534458-1238574429/solver-1534458-1238574429 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009++ HOME/instance-1534458-1238574429.cnf 1316271417

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

MD5SUM BENCH= 647005b2285214f4136823936a28bcc9
RANDOM SEED=1316271417

node2.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		: 3000.236
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		: 3000.236
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:       1478176 kB
Buffers:         88888 kB
Cached:         391784 kB
SwapCached:       8996 kB
Active:         207424 kB
Inactive:       284240 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1478176 kB
SwapTotal:     4192956 kB
SwapFree:      4177768 kB
Dirty:            4596 kB
Writeback:           0 kB
Mapped:          16608 kB
Slab:            72068 kB
Committed_AS:  2906008 kB
PageTables:       1476 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= 66492 MiB
End job on node2 at 2009-04-01 10:27:09