Trace number 1523941

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 1.9557 1.95688

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/540/
unif-k3-r4.25-v540-c2295-S84716411-095.cnf
MD5SUMee6ebc8afc6634471ab0e2f554ddcb49
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.025996
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 

1.89/1.95	c try 1 flip j 1253952
1.89/1.95	c A solution is found
1.89/1.95	s SATISFIABLE
1.89/1.95	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 
1.89/1.95	v 0 
1.89/1.95	c Done (mycputime is 1.950 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-1523941-1238587867/watcher-1523941-1238587867 -o /tmp/evaluation-result-1523941-1238587867/solver-1523941-1238587867 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/NCVWr HOME/instance-1523941-1238587867.cnf 762720925 

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 1.00 1.16 3/64 28765
/proc/meminfo: memFree=1296528/2055920 swapFree=4178260/4192956
[pid=28765] ppid=28763 vsize=412012 CPUtime=0
/proc/28765/stat : 28765 (NCVWr) R 28763 28765 28070 0 -1 4194304 150 0 0 0 0 0 0 0 18 0 1 0 897378144 421900288 134 1992294400 134512640 135113558 4294956208 18446744073709551615 134526470 0 0 4096 0 0 0 0 17 1 0 0
/proc/28765/statm: 103003 134 55 146 0 101878 0

[startup+0.078557 s]
/proc/loadavg: 1.00 1.00 1.16 3/64 28765
/proc/meminfo: memFree=1296528/2055920 swapFree=4178260/4192956
[pid=28765] ppid=28763 vsize=416056 CPUtime=0.07
/proc/28765/stat : 28765 (NCVWr) R 28763 28765 28070 0 -1 4194304 219 0 0 0 7 0 0 0 18 0 1 0 897378144 426041344 203 1992294400 134512640 135113558 4294956208 18446744073709551615 134532353 0 0 4096 0 0 0 0 17 1 0 0
/proc/28765/statm: 104014 203 58 146 0 102889 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 416056

[startup+0.101558 s]
/proc/loadavg: 1.00 1.00 1.16 3/64 28765
/proc/meminfo: memFree=1296528/2055920 swapFree=4178260/4192956
[pid=28765] ppid=28763 vsize=416056 CPUtime=0.09
/proc/28765/stat : 28765 (NCVWr) R 28763 28765 28070 0 -1 4194304 219 0 0 0 9 0 0 0 18 0 1 0 897378144 426041344 203 1992294400 134512640 135113558 4294956208 18446744073709551615 134531768 0 0 4096 0 0 0 0 17 1 0 0
/proc/28765/statm: 104014 203 58 146 0 102889 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 416056

[startup+0.301587 s]
/proc/loadavg: 1.00 1.00 1.16 3/64 28765
/proc/meminfo: memFree=1296528/2055920 swapFree=4178260/4192956
[pid=28765] ppid=28763 vsize=416056 CPUtime=0.29
/proc/28765/stat : 28765 (NCVWr) R 28763 28765 28070 0 -1 4194304 219 0 0 0 29 0 0 0 19 0 1 0 897378144 426041344 203 1992294400 134512640 135113558 4294956208 18446744073709551615 134532664 0 0 4096 0 0 0 0 17 1 0 0
/proc/28765/statm: 104014 203 58 146 0 102889 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 416056

[startup+0.701646 s]
/proc/loadavg: 1.00 1.00 1.16 3/64 28765
/proc/meminfo: memFree=1296528/2055920 swapFree=4178260/4192956
[pid=28765] ppid=28763 vsize=416056 CPUtime=0.69
/proc/28765/stat : 28765 (NCVWr) R 28763 28765 28070 0 -1 4194304 219 0 0 0 69 0 0 0 22 0 1 0 897378144 426041344 203 1992294400 134512640 135113558 4294956208 18446744073709551615 134531483 0 0 4096 0 0 0 0 17 1 0 0
/proc/28765/statm: 104014 203 58 146 0 102889 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 416056

[startup+1.50176 s]
/proc/loadavg: 1.00 1.00 1.16 2/65 28766
/proc/meminfo: memFree=1295752/2055920 swapFree=4178260/4192956
[pid=28765] ppid=28763 vsize=416056 CPUtime=1.49
/proc/28765/stat : 28765 (NCVWr) R 28763 28765 28070 0 -1 4194304 219 0 0 0 149 0 0 0 25 0 1 0 897378144 426041344 203 1992294400 134512640 135113558 4294956208 18446744073709551615 134534097 0 0 4096 0 0 0 0 17 1 0 0
/proc/28765/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+1.90182 s]
/proc/loadavg: 1.00 1.00 1.16 2/65 28766
/proc/meminfo: memFree=1295752/2055920 swapFree=4178260/4192956
[pid=28765] ppid=28763 vsize=416056 CPUtime=1.89
/proc/28765/stat : 28765 (NCVWr) R 28763 28765 28070 0 -1 4194304 219 0 0 0 189 0 0 0 25 0 1 0 897378144 426041344 203 1992294400 134512640 135113558 4294956208 18446744073709551615 134534097 0 0 4096 0 0 0 0 17 1 0 0
/proc/28765/statm: 104014 203 58 146 0 102889 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 416056

Child status: 10
Real time (s): 1.95688
CPU time (s): 1.9557
CPU user time (s): 1.9547
CPU system time (s): 0.000999
CPU usage (%): 99.9397
Max. virtual memory (cumulated for all children) (KiB): 416056

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.9547
system time used= 0.000999
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= 1

runsolver used 0.003999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node39 at 2009-04-01 14:11:07
IDJOB=1523941
IDBENCH=70711
IDSOLVER=531
FILE ID=node39/1523941-1238587867
PBS_JOBID= 9062216
Free space on /tmp= 66252 MiB

SOLVER NAME= NCVWr 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/540/unif-k3-r4.25-v540-c2295-S84716411-095.cnf
COMMAND LINE= HOME/NCVWr BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523941-1238587867/watcher-1523941-1238587867 -o /tmp/evaluation-result-1523941-1238587867/solver-1523941-1238587867 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/NCVWr HOME/instance-1523941-1238587867.cnf 762720925

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

MD5SUM BENCH= ee6ebc8afc6634471ab0e2f554ddcb49
RANDOM SEED=762720925

node39.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		: 3000.285
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		: 3000.285
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:       1296944 kB
Buffers:         97772 kB
Cached:         562296 kB
SwapCached:       8168 kB
Active:         232720 kB
Inactive:       437372 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1296944 kB
SwapTotal:     4192956 kB
SwapFree:      4178260 kB
Dirty:            4620 kB
Writeback:           0 kB
Mapped:          16744 kB
Slab:            75200 kB
Committed_AS:  2471440 kB
PageTables:       1188 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= 66248 MiB
End job on node39 at 2009-04-01 14:11:09