Trace number 1523947

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
NCVWr 2009-03-22SAT 2.39464 2.3943

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/540/
unif-k3-r4.25-v540-c2295-S817309453-059.cnf
MD5SUM534584fc51d8f0ef0254b8dbc8353cc1
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.099983
Satisfiable
(Un)Satisfiability was proved
Number of variables540
Number of clauses2295
Sum of the clauses size6885
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32295
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

2.29/2.39	c try 1 flip j 1496428
2.29/2.39	c A solution is found
2.29/2.39	s SATISFIABLE
2.29/2.39	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 -521 -522 -523 524 -525 526 527 -528 529 530 -531 532 -533 -534 535 -536 537 538 -539 -540 
2.29/2.39	v 0 
2.29/2.39	c Done (mycputime is 2.390 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-1523947-1238588621/watcher-1523947-1238588621 -o /tmp/evaluation-result-1523947-1238588621/solver-1523947-1238588621 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/NCVWr HOME/instance-1523947-1238588621.cnf 1378895582 

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 0.95 0.98 3/65 4316
/proc/meminfo: memFree=1583464/2055920 swapFree=4178736/4192956
[pid=4316] ppid=4314 vsize=412012 CPUtime=0
/proc/4316/stat : 4316 (NCVWr) R 4314 4316 4196 0 -1 4194304 150 0 0 0 0 0 0 0 18 0 1 0 485195981 421900288 134 1992294400 134512640 135113558 4294956224 18446744073709551615 134526301 0 0 4096 0 0 0 0 17 1 0 0
/proc/4316/statm: 103003 134 55 146 0 101878 0

[startup+0.0882489 s]
/proc/loadavg: 0.92 0.95 0.98 3/65 4316
/proc/meminfo: memFree=1583464/2055920 swapFree=4178736/4192956
[pid=4316] ppid=4314 vsize=416056 CPUtime=0.08
/proc/4316/stat : 4316 (NCVWr) R 4314 4316 4196 0 -1 4194304 219 0 0 0 8 0 0 0 18 0 1 0 485195981 426041344 203 1992294400 134512640 135113558 4294956224 18446744073709551615 134520688 0 0 4096 0 0 0 0 17 1 0 0
/proc/4316/statm: 104014 203 58 146 0 102889 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 416056

[startup+0.101249 s]
/proc/loadavg: 0.92 0.95 0.98 3/65 4316
/proc/meminfo: memFree=1583464/2055920 swapFree=4178736/4192956
[pid=4316] ppid=4314 vsize=416056 CPUtime=0.09
/proc/4316/stat : 4316 (NCVWr) R 4314 4316 4196 0 -1 4194304 219 0 0 0 9 0 0 0 18 0 1 0 485195981 426041344 203 1992294400 134512640 135113558 4294956224 18446744073709551615 134531883 0 0 4096 0 0 0 0 17 1 0 0
/proc/4316/statm: 104014 203 58 146 0 102889 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 416056

[startup+0.301271 s]
/proc/loadavg: 0.92 0.95 0.98 3/65 4316
/proc/meminfo: memFree=1583464/2055920 swapFree=4178736/4192956
[pid=4316] ppid=4314 vsize=416056 CPUtime=0.29
/proc/4316/stat : 4316 (NCVWr) R 4314 4316 4196 0 -1 4194304 219 0 0 0 29 0 0 0 19 0 1 0 485195981 426041344 203 1992294400 134512640 135113558 4294956224 18446744073709551615 134534200 0 0 4096 0 0 0 0 17 1 0 0
/proc/4316/statm: 104014 203 58 146 0 102889 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 416056

[startup+0.701317 s]
/proc/loadavg: 0.92 0.95 0.98 3/65 4316
/proc/meminfo: memFree=1583464/2055920 swapFree=4178736/4192956
[pid=4316] ppid=4314 vsize=416056 CPUtime=0.69
/proc/4316/stat : 4316 (NCVWr) R 4314 4316 4196 0 -1 4194304 219 0 0 0 69 0 0 0 22 0 1 0 485195981 426041344 203 1992294400 134512640 135113558 4294956224 18446744073709551615 134531987 0 0 4096 0 0 0 0 17 1 0 0
/proc/4316/statm: 104014 203 58 146 0 102889 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 416056

[startup+1.50141 s]
/proc/loadavg: 0.92 0.95 0.98 2/66 4317
/proc/meminfo: memFree=1582752/2055920 swapFree=4178736/4192956
[pid=4316] ppid=4314 vsize=416056 CPUtime=1.49
/proc/4316/stat : 4316 (NCVWr) R 4314 4316 4196 0 -1 4194304 219 0 0 0 149 0 0 0 25 0 1 0 485195981 426041344 203 1992294400 134512640 135113558 4294956224 18446744073709551615 134520678 0 0 4096 0 0 0 0 17 1 0 0
/proc/4316/statm: 104014 203 58 146 0 102889 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 416056

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

[startup+1.90145 s]
/proc/loadavg: 0.92 0.95 0.98 2/66 4317
/proc/meminfo: memFree=1582752/2055920 swapFree=4178736/4192956
[pid=4316] ppid=4314 vsize=416056 CPUtime=1.89
/proc/4316/stat : 4316 (NCVWr) R 4314 4316 4196 0 -1 4194304 219 0 0 0 189 0 0 0 25 0 1 0 485195981 426041344 203 1992294400 134512640 135113558 4294956224 18446744073709551615 134531443 0 0 4096 0 0 0 0 17 1 0 0
/proc/4316/statm: 104014 203 58 146 0 102889 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 416056

[startup+2.3015 s]
/proc/loadavg: 0.93 0.95 0.98 2/66 4317
/proc/meminfo: memFree=1582624/2055920 swapFree=4178736/4192956
[pid=4316] ppid=4314 vsize=416056 CPUtime=2.29
/proc/4316/stat : 4316 (NCVWr) R 4314 4316 4196 0 -1 4194304 219 0 0 0 229 0 0 0 25 0 1 0 485195981 426041344 203 1992294400 134512640 135113558 4294956224 18446744073709551615 134533179 0 0 4096 0 0 0 0 17 1 0 0
/proc/4316/statm: 104014 203 58 146 0 102889 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 416056

Child status: 10
Real time (s): 2.3943
CPU time (s): 2.39464
CPU user time (s): 2.39264
CPU system time (s): 0.001999
CPU usage (%): 100.014
Max. virtual memory (cumulated for all children) (KiB): 416056

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.39264
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 232
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 0.004999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node32 at 2009-04-01 14:23:41
IDJOB=1523947
IDBENCH=70713
IDSOLVER=531
FILE ID=node32/1523947-1238588621
PBS_JOBID= 9068310
Free space on /tmp= 66456 MiB

SOLVER NAME= NCVWr 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/540/unif-k3-r4.25-v540-c2295-S817309453-059.cnf
COMMAND LINE= HOME/NCVWr BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523947-1238588621/watcher-1523947-1238588621 -o /tmp/evaluation-result-1523947-1238588621/solver-1523947-1238588621 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/NCVWr HOME/instance-1523947-1238588621.cnf 1378895582

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

MD5SUM BENCH= 534584fc51d8f0ef0254b8dbc8353cc1
RANDOM SEED=1378895582

node32.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		: 3000.234
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		: 3000.234
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:       1583944 kB
Buffers:         95324 kB
Cached:         287448 kB
SwapCached:       7344 kB
Active:         215112 kB
Inactive:       176396 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1583944 kB
SwapTotal:     4192956 kB
SwapFree:      4178736 kB
Dirty:            5064 kB
Writeback:           0 kB
Mapped:          14440 kB
Slab:            66276 kB
Committed_AS:  1682652 kB
PageTables:       1488 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66452 MiB
End job on node32 at 2009-04-01 14:23:44