Trace number 1534407

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 0.050992 0.0518449

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S956671877-054.cnf
MD5SUMfa9334576b7ead7d32e2b64d3b23241f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.032994
Satisfiable
(Un)Satisfiability was proved
Number of variables520
Number of clauses2210
Sum of the clauses size6630
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32210
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.03/0.05	c 0 clauses are redundant and removed
0.03/0.05	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.03/0.05	c 0 vars are fixed and 0 clauses are removed after lookahead
0.03/0.05	c initial seed is 1925256044
0.03/0.05	c try 1 flip j 37552 walk 32118 seed 446631288
0.03/0.05	c A solution is found
0.03/0.05	s SATISFIABLE
0.03/0.05	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 -501 502 -503 504 505 506 -507 508 509 -510 -511 512 -513 -514 515 516 517 -518 -519 520 
0.03/0.05	v 0 
0.03/0.05	c Done (mycputime is 0.050 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-1534407-1238571993/watcher-1534407-1238571993 -o /tmp/evaluation-result-1534407-1238571993/solver-1534407-1238571993 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009 HOME/instance-1534407-1238571993.cnf 1925256044 

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: 1.00 0.99 0.91 3/64 14570
/proc/meminfo: memFree=1268136/2055920 swapFree=4178420/4192956
[pid=14570] ppid=14568 vsize=415928 CPUtime=0
/proc/14570/stat : 14570 (adaptg2wsat2009) R 14568 14570 14183 0 -1 4194304 146 0 0 0 0 0 0 0 18 0 1 0 1129865408 425910272 129 1992294400 134512640 135106963 4294956224 18446744073709551615 134523072 0 0 4096 0 0 0 0 17 1 0 0
/proc/14570/statm: 103982 129 50 145 0 102858 0

[startup+0.039964 s]
/proc/loadavg: 1.00 0.99 0.91 3/64 14570
/proc/meminfo: memFree=1268136/2055920 swapFree=4178420/4192956
[pid=14570] ppid=14568 vsize=416064 CPUtime=0.03
/proc/14570/stat : 14570 (adaptg2wsat2009) R 14568 14570 14183 0 -1 4194304 211 0 0 0 3 0 0 0 18 0 1 0 1129865408 426049536 194 1992294400 134512640 135106963 4294956224 18446744073709551615 134531468 0 0 4096 0 0 0 0 17 1 0 0
/proc/14570/statm: 104016 194 60 145 0 102892 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 416064

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

[startup+0.039964 s]
/proc/loadavg: 1.00 0.99 0.91 3/64 14570
/proc/meminfo: memFree=1268136/2055920 swapFree=4178420/4192956
[pid=14570] ppid=14568 vsize=416064 CPUtime=0.03
/proc/14570/stat : 14570 (adaptg2wsat2009) R 14568 14570 14183 0 -1 4194304 211 0 0 0 3 0 0 0 18 0 1 0 1129865408 426049536 194 1992294400 134512640 135106963 4294956224 18446744073709551615 134531468 0 0 4096 0 0 0 0 17 1 0 0
/proc/14570/statm: 104016 194 60 145 0 102892 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 416064

Child status: 10
Real time (s): 0.0518449
CPU time (s): 0.050992
CPU user time (s): 0.050992
CPU system time (s): 0
CPU usage (%): 98.3548
Max. virtual memory (cumulated for all children) (KiB): 416064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.050992
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= 222
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 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node15 at 2009-04-01 09:46:33
IDJOB=1534407
IDBENCH=70655
IDSOLVER=542
FILE ID=node15/1534407-1238571993
PBS_JOBID= 9070511
Free space on /tmp= 65428 MiB

SOLVER NAME= adaptg2wsat2009 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S956671877-054.cnf
COMMAND LINE= HOME/adaptg2wsat2009 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534407-1238571993/watcher-1534407-1238571993 -o /tmp/evaluation-result-1534407-1238571993/solver-1534407-1238571993 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009 HOME/instance-1534407-1238571993.cnf 1925256044

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

MD5SUM BENCH= fa9334576b7ead7d32e2b64d3b23241f
RANDOM SEED=1925256044

node15.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		: 3000.286
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		: 3000.286
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:       1268552 kB
Buffers:         91716 kB
Cached:         595548 kB
SwapCached:       8376 kB
Active:         215176 kB
Inactive:       482008 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1268552 kB
SwapTotal:     4192956 kB
SwapFree:      4178420 kB
Dirty:            4804 kB
Writeback:           0 kB
Mapped:          15628 kB
Slab:            76152 kB
Committed_AS:  3042744 kB
PageTables:       1464 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= 65424 MiB
End job on node15 at 2009-04-01 09:46:34