Trace number 1522261

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
iPAWS 2009-03-22SAT 2.89856 2.89865

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S1536609007-088.cnf
MD5SUM95e50be0ec36bd6dfa5233022c3ad7ac
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.00285
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 

2.79/2.89	s SATISFIABLE
2.79/2.89	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
2.79/2.89	c input file instance-1522261-1238572127.cnf, flips 2312841

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-1522261-1238572127/watcher-1522261-1238572127 -o /tmp/evaluation-result-1522261-1238572127/solver-1522261-1238572127 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/iPAWS HOME/instance-1522261-1238572127.cnf 236196941 

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: 0.85 0.97 1.01 3/71 21791
/proc/meminfo: memFree=1247752/2055920 swapFree=4170332/4192956
[pid=21791] ppid=21789 vsize=335916 CPUtime=0
/proc/21791/stat : 21791 (iPAWS) R 21789 21791 21754 0 -1 4194304 523 0 0 0 0 0 0 0 18 0 1 0 1129875804 343977984 507 1992294400 134512640 135114423 4294956224 18446744073709551615 134534175 0 0 4096 0 0 0 0 17 0 0 0
/proc/21791/statm: 83979 513 54 146 0 83831 0

[startup+0.056197 s]
/proc/loadavg: 0.85 0.97 1.01 3/71 21791
/proc/meminfo: memFree=1247752/2055920 swapFree=4170332/4192956
[pid=21791] ppid=21789 vsize=335916 CPUtime=0.05
/proc/21791/stat : 21791 (iPAWS) R 21789 21791 21754 0 -1 4194304 933 0 0 0 5 0 0 0 18 0 1 0 1129875804 343977984 917 1992294400 134512640 135114423 4294956224 18446744073709551615 134516101 0 0 4096 0 0 0 0 17 0 0 0
/proc/21791/statm: 83979 917 57 146 0 83831 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 335916

[startup+0.101205 s]
/proc/loadavg: 0.85 0.97 1.01 3/71 21791
/proc/meminfo: memFree=1247752/2055920 swapFree=4170332/4192956
[pid=21791] ppid=21789 vsize=335916 CPUtime=0.09
/proc/21791/stat : 21791 (iPAWS) R 21789 21791 21754 0 -1 4194304 933 0 0 0 9 0 0 0 18 0 1 0 1129875804 343977984 917 1992294400 134512640 135114423 4294956224 18446744073709551615 134546175 0 0 4096 0 0 0 0 17 0 0 0
/proc/21791/statm: 83979 917 57 146 0 83831 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 335916

[startup+0.301243 s]
/proc/loadavg: 0.85 0.97 1.01 3/71 21791
/proc/meminfo: memFree=1247752/2055920 swapFree=4170332/4192956
[pid=21791] ppid=21789 vsize=335916 CPUtime=0.29
/proc/21791/stat : 21791 (iPAWS) R 21789 21791 21754 0 -1 4194304 933 0 0 0 29 0 0 0 19 0 1 0 1129875804 343977984 917 1992294400 134512640 135114423 4294956224 18446744073709551615 134547171 0 0 4096 0 0 0 0 17 0 0 0
/proc/21791/statm: 83979 917 57 146 0 83831 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 335916

[startup+0.701318 s]
/proc/loadavg: 0.85 0.97 1.01 3/71 21791
/proc/meminfo: memFree=1247752/2055920 swapFree=4170332/4192956
[pid=21791] ppid=21789 vsize=335916 CPUtime=0.69
/proc/21791/stat : 21791 (iPAWS) R 21789 21791 21754 0 -1 4194304 933 0 0 0 69 0 0 0 23 0 1 0 1129875804 343977984 917 1992294400 134512640 135114423 4294956224 18446744073709551615 134547006 0 0 4096 0 0 0 0 17 0 0 0
/proc/21791/statm: 83979 917 57 146 0 83831 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 335916

[startup+1.50147 s]
/proc/loadavg: 0.85 0.97 1.01 2/72 21792
/proc/meminfo: memFree=1244160/2055920 swapFree=4170332/4192956
[pid=21791] ppid=21789 vsize=335916 CPUtime=1.49
/proc/21791/stat : 21791 (iPAWS) R 21789 21791 21754 0 -1 4194304 933 0 0 0 149 0 0 0 25 0 1 0 1129875804 343977984 917 1992294400 134512640 135114423 4294956224 18446744073709551615 134515710 0 0 4096 0 0 0 0 17 0 0 0
/proc/21791/statm: 83979 917 57 146 0 83831 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 335916

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

[startup+2.30162 s]
/proc/loadavg: 0.85 0.97 1.01 2/72 21792
/proc/meminfo: memFree=1244032/2055920 swapFree=4170332/4192956
[pid=21791] ppid=21789 vsize=335916 CPUtime=2.29
/proc/21791/stat : 21791 (iPAWS) R 21789 21791 21754 0 -1 4194304 933 0 0 0 229 0 0 0 25 0 1 0 1129875804 343977984 917 1992294400 134512640 135114423 4294956224 18446744073709551615 134514774 0 0 4096 0 0 0 0 17 0 0 0
/proc/21791/statm: 83979 917 57 146 0 83831 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 335916

[startup+2.7017 s]
/proc/loadavg: 0.85 0.97 1.01 2/72 21792
/proc/meminfo: memFree=1244032/2055920 swapFree=4170332/4192956
[pid=21791] ppid=21789 vsize=335916 CPUtime=2.69
/proc/21791/stat : 21791 (iPAWS) R 21789 21791 21754 0 -1 4194304 933 0 0 0 269 0 0 0 25 0 1 0 1129875804 343977984 917 1992294400 134512640 135114423 4294956224 18446744073709551615 134546168 0 0 4096 0 0 0 0 17 0 0 0
/proc/21791/statm: 83979 917 57 146 0 83831 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 335916

[startup+2.80172 s]
/proc/loadavg: 0.85 0.97 1.01 2/72 21792
/proc/meminfo: memFree=1244032/2055920 swapFree=4170332/4192956
[pid=21791] ppid=21789 vsize=335916 CPUtime=2.79
/proc/21791/stat : 21791 (iPAWS) R 21789 21791 21754 0 -1 4194304 933 0 0 0 279 0 0 0 25 0 1 0 1129875804 343977984 917 1992294400 134512640 135114423 4294956224 18446744073709551615 134546234 0 0 4096 0 0 0 0 17 0 0 0
/proc/21791/statm: 83979 917 57 146 0 83831 0
Current children cumulated CPU time (s) 2.79
Current children cumulated vsize (KiB) 335916

Child status: 0
Real time (s): 2.89865
CPU time (s): 2.89856
CPU user time (s): 2.89156
CPU system time (s): 0.006998
CPU usage (%): 99.9968
Max. virtual memory (cumulated for all children) (KiB): 335916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.89156
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 941
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= 9

runsolver used 0.007998 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node38 at 2009-04-01 09:48:47
IDJOB=1522261
IDBENCH=70656
IDSOLVER=516
FILE ID=node38/1522261-1238572127
PBS_JOBID= 9062193
Free space on /tmp= 65528 MiB

SOLVER NAME= iPAWS 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S1536609007-088.cnf
COMMAND LINE= HOME/iPAWS BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1522261-1238572127/watcher-1522261-1238572127 -o /tmp/evaluation-result-1522261-1238572127/solver-1522261-1238572127 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/iPAWS HOME/instance-1522261-1238572127.cnf 236196941

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

MD5SUM BENCH= 95e50be0ec36bd6dfa5233022c3ad7ac
RANDOM SEED=236196941

node38.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		: 3000.259
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	: 5931.00
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		: 3000.259
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:       1248232 kB
Buffers:         94080 kB
Cached:         611128 kB
SwapCached:      11172 kB
Active:         200520 kB
Inactive:       517264 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1248232 kB
SwapTotal:     4192956 kB
SwapFree:      4170332 kB
Dirty:             956 kB
Writeback:           0 kB
Mapped:          18256 kB
Slab:            75172 kB
Committed_AS:  3226708 kB
PageTables:       1988 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= 65528 MiB
End job on node38 at 2009-04-01 09:48:50