Trace number 1522268

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 0.640902 0.64121

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/520/
unif-k3-r4.25-v520-c2210-S1800466054-025.cnf
MD5SUMbee6b22c61c85c79429fd4c1adab5451
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.064989
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 

0.59/0.64	s SATISFIABLE
0.59/0.64	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
0.59/0.64	c input file instance-1522268-1238573899.cnf, flips 479692

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-1522268-1238573899/watcher-1522268-1238573899 -o /tmp/evaluation-result-1522268-1238573899/solver-1522268-1238573899 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/iPAWS HOME/instance-1522268-1238573899.cnf 445602598 

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: 1.99 1.85 1.45 3/64 32435
/proc/meminfo: memFree=1079288/2055920 swapFree=4174136/4192956
[pid=32435] ppid=32433 vsize=335916 CPUtime=0
/proc/32435/stat : 32435 (iPAWS) R 32433 32435 31917 0 -1 4194304 485 0 0 0 0 0 0 0 18 0 1 0 1130056733 343977984 469 1992294400 134512640 135114423 4294956224 18446744073709551615 134736517 0 0 4096 0 0 0 0 17 1 0 0
/proc/32435/statm: 83979 470 54 146 0 83831 0

[startup+0.0796709 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 32435
/proc/meminfo: memFree=1079288/2055920 swapFree=4174136/4192956
[pid=32435] ppid=32433 vsize=335916 CPUtime=0.07
/proc/32435/stat : 32435 (iPAWS) R 32433 32435 31917 0 -1 4194304 933 0 0 0 7 0 0 0 18 0 1 0 1130056733 343977984 917 1992294400 134512640 135114423 4294956224 18446744073709551615 134546245 0 0 4096 0 0 0 0 17 1 0 0
/proc/32435/statm: 83979 917 57 146 0 83831 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 335916

[startup+0.101675 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 32435
/proc/meminfo: memFree=1079288/2055920 swapFree=4174136/4192956
[pid=32435] ppid=32433 vsize=335916 CPUtime=0.09
/proc/32435/stat : 32435 (iPAWS) R 32433 32435 31917 0 -1 4194304 933 0 0 0 9 0 0 0 18 0 1 0 1130056733 343977984 917 1992294400 134512640 135114423 4294956224 18446744073709551615 134516985 0 0 4096 0 0 0 0 17 1 0 0
/proc/32435/statm: 83979 917 57 146 0 83831 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 335916

[startup+0.301709 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 32435
/proc/meminfo: memFree=1079288/2055920 swapFree=4174136/4192956
[pid=32435] ppid=32433 vsize=335916 CPUtime=0.29
/proc/32435/stat : 32435 (iPAWS) R 32433 32435 31917 0 -1 4194304 933 0 0 0 29 0 0 0 19 0 1 0 1130056733 343977984 917 1992294400 134512640 135114423 4294956224 18446744073709551615 134546081 0 0 4096 0 0 0 0 17 1 0 0
/proc/32435/statm: 83979 917 57 146 0 83831 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 335916

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

[startup+0.501744 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 32435
/proc/meminfo: memFree=1079288/2055920 swapFree=4174136/4192956
[pid=32435] ppid=32433 vsize=335916 CPUtime=0.49
/proc/32435/stat : 32435 (iPAWS) R 32433 32435 31917 0 -1 4194304 933 0 0 0 49 0 0 0 21 0 1 0 1130056733 343977984 917 1992294400 134512640 135114423 4294956224 18446744073709551615 134546175 0 0 4096 0 0 0 0 17 1 0 0
/proc/32435/statm: 83979 917 57 146 0 83831 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 335916

[startup+0.601762 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 32435
/proc/meminfo: memFree=1079288/2055920 swapFree=4174136/4192956
[pid=32435] ppid=32433 vsize=335916 CPUtime=0.59
/proc/32435/stat : 32435 (iPAWS) R 32433 32435 31917 0 -1 4194304 933 0 0 0 59 0 0 0 21 0 1 0 1130056733 343977984 917 1992294400 134512640 135114423 4294956224 18446744073709551615 134514899 0 0 4096 0 0 0 0 17 1 0 0
/proc/32435/statm: 83979 917 57 146 0 83831 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 335916

Child status: 0
Real time (s): 0.64121
CPU time (s): 0.640902
CPU user time (s): 0.635903
CPU system time (s): 0.004999
CPU usage (%): 99.952
Max. virtual memory (cumulated for all children) (KiB): 335916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.635903
system time used= 0.004999
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= 4

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node4 at 2009-04-01 10:18:19
IDJOB=1522268
IDBENCH=70663
IDSOLVER=516
FILE ID=node4/1522268-1238573899
PBS_JOBID= 9070522
Free space on /tmp= 65244 MiB

SOLVER NAME= iPAWS 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/520/unif-k3-r4.25-v520-c2210-S1800466054-025.cnf
COMMAND LINE= HOME/iPAWS BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1522268-1238573899/watcher-1522268-1238573899 -o /tmp/evaluation-result-1522268-1238573899/solver-1522268-1238573899 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/iPAWS HOME/instance-1522268-1238573899.cnf 445602598

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

MD5SUM BENCH= bee6b22c61c85c79429fd4c1adab5451
RANDOM SEED=445602598

node4.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		: 3000.277
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		: 3000.277
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:       1079768 kB
Buffers:        103732 kB
Cached:         758364 kB
SwapCached:      12656 kB
Active:         208924 kB
Inactive:       670124 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1079768 kB
SwapTotal:     4192956 kB
SwapFree:      4174136 kB
Dirty:             736 kB
Writeback:           0 kB
Mapped:          19700 kB
Slab:            83104 kB
Committed_AS:  2896780 kB
PageTables:       1480 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= 65244 MiB
End job on node4 at 2009-04-01 10:18:20