Trace number 1523992

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 1.86072 1.86204

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/460/
unif-k3-r4.25-v460-c1955-S1367181683-025.cnf
MD5SUM0c6dae1feec9774fac72f3ea3b150662
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.019996
Satisfiable
(Un)Satisfiability was proved
Number of variables460
Number of clauses1955
Sum of the clauses size5865
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31955
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.79/1.86	c try 1 flip j 1187704
1.79/1.86	c A solution is found
1.79/1.86	s SATISFIABLE
1.79/1.86	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 
1.79/1.86	v 0 
1.79/1.86	c Done (mycputime is 1.860 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-1523992-1238594143/watcher-1523992-1238594143 -o /tmp/evaluation-result-1523992-1238594143/solver-1523992-1238594143 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/NCVWr HOME/instance-1523992-1238594143.cnf 497323435 

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: 0.93 0.98 0.99 3/64 11405
/proc/meminfo: memFree=1288128/2055920 swapFree=4175692/4192956
[pid=11405] ppid=11403 vsize=412012 CPUtime=0
/proc/11405/stat : 11405 (NCVWr) R 11403 11405 10579 0 -1 4194304 144 0 0 0 0 0 0 0 18 0 1 0 1132079529 421900288 128 1992294400 134512640 135113558 4294956208 18446744073709551615 134526387 0 0 4096 0 0 0 0 17 1 0 0
/proc/11405/statm: 103003 128 55 146 0 101878 0

[startup+0.040849 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 11405
/proc/meminfo: memFree=1288128/2055920 swapFree=4175692/4192956
[pid=11405] ppid=11403 vsize=416048 CPUtime=0.03
/proc/11405/stat : 11405 (NCVWr) R 11403 11405 10579 0 -1 4194304 209 0 0 0 3 0 0 0 18 0 1 0 1132079529 426033152 193 1992294400 134512640 135113558 4294956208 18446744073709551615 134532010 0 0 4096 0 0 0 0 17 1 0 0
/proc/11405/statm: 104012 193 58 146 0 102887 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 416048

[startup+0.101856 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 11405
/proc/meminfo: memFree=1288128/2055920 swapFree=4175692/4192956
[pid=11405] ppid=11403 vsize=416048 CPUtime=0.1
/proc/11405/stat : 11405 (NCVWr) R 11403 11405 10579 0 -1 4194304 209 0 0 0 10 0 0 0 18 0 1 0 1132079529 426033152 193 1992294400 134512640 135113558 4294956208 18446744073709551615 134520650 0 0 4096 0 0 0 0 17 1 0 0
/proc/11405/statm: 104012 193 58 146 0 102887 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 416048

[startup+0.301884 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 11405
/proc/meminfo: memFree=1288128/2055920 swapFree=4175692/4192956
[pid=11405] ppid=11403 vsize=416048 CPUtime=0.3
/proc/11405/stat : 11405 (NCVWr) R 11403 11405 10579 0 -1 4194304 209 0 0 0 30 0 0 0 19 0 1 0 1132079529 426033152 193 1992294400 134512640 135113558 4294956208 18446744073709551615 134531766 0 0 4096 0 0 0 0 17 1 0 0
/proc/11405/statm: 104012 193 58 146 0 102887 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 416048

[startup+0.701943 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 11405
/proc/meminfo: memFree=1288128/2055920 swapFree=4175692/4192956
[pid=11405] ppid=11403 vsize=416048 CPUtime=0.7
/proc/11405/stat : 11405 (NCVWr) R 11403 11405 10579 0 -1 4194304 209 0 0 0 70 0 0 0 22 0 1 0 1132079529 426033152 193 1992294400 134512640 135113558 4294956208 18446744073709551615 134533962 0 0 4096 0 0 0 0 17 1 0 0
/proc/11405/statm: 104012 193 58 146 0 102887 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 416048

[startup+1.50106 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 11406
/proc/meminfo: memFree=1287352/2055920 swapFree=4175692/4192956
[pid=11405] ppid=11403 vsize=416048 CPUtime=1.49
/proc/11405/stat : 11405 (NCVWr) R 11403 11405 10579 0 -1 4194304 210 0 0 0 149 0 0 0 25 0 1 0 1132079529 426033152 194 1992294400 134512640 135113558 4294956208 18446744073709551615 134534202 0 0 4096 0 0 0 0 17 1 0 0
/proc/11405/statm: 104012 194 58 146 0 102887 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 416048

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

[startup+1.70109 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 11406
/proc/meminfo: memFree=1287352/2055920 swapFree=4175692/4192956
[pid=11405] ppid=11403 vsize=416048 CPUtime=1.69
/proc/11405/stat : 11405 (NCVWr) R 11403 11405 10579 0 -1 4194304 210 0 0 0 169 0 0 0 25 0 1 0 1132079529 426033152 194 1992294400 134512640 135113558 4294956208 18446744073709551615 134531968 0 0 4096 0 0 0 0 17 1 0 0
/proc/11405/statm: 104012 194 58 146 0 102887 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 416048

[startup+1.8011 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 11406
/proc/meminfo: memFree=1287352/2055920 swapFree=4175692/4192956
[pid=11405] ppid=11403 vsize=416048 CPUtime=1.79
/proc/11405/stat : 11405 (NCVWr) R 11403 11405 10579 0 -1 4194304 210 0 0 0 179 0 0 0 25 0 1 0 1132079529 426033152 194 1992294400 134512640 135113558 4294956208 18446744073709551615 134531786 0 0 4096 0 0 0 0 17 1 0 0
/proc/11405/statm: 104012 194 58 146 0 102887 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 416048

Child status: 10
Real time (s): 1.86204
CPU time (s): 1.86072
CPU user time (s): 1.86072
CPU system time (s): 0
CPU usage (%): 99.9289
Max. virtual memory (cumulated for all children) (KiB): 416048

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.86072
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= 223
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 0.001999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node30 at 2009-04-01 15:55:43
IDJOB=1523992
IDBENCH=70728
IDSOLVER=531
FILE ID=node30/1523992-1238594143
PBS_JOBID= 9062235
Free space on /tmp= 66360 MiB

SOLVER NAME= NCVWr 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/460/unif-k3-r4.25-v460-c1955-S1367181683-025.cnf
COMMAND LINE= HOME/NCVWr BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523992-1238594143/watcher-1523992-1238594143 -o /tmp/evaluation-result-1523992-1238594143/solver-1523992-1238594143 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/NCVWr HOME/instance-1523992-1238594143.cnf 497323435

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

MD5SUM BENCH= 0c6dae1feec9774fac72f3ea3b150662
RANDOM SEED=497323435

node30.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		: 3000.260
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		: 3000.260
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:       1288544 kB
Buffers:         95960 kB
Cached:         571860 kB
SwapCached:      11092 kB
Active:         230252 kB
Inactive:       450672 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1288544 kB
SwapTotal:     4192956 kB
SwapFree:      4175692 kB
Dirty:            4796 kB
Writeback:           0 kB
Mapped:          18732 kB
Slab:            72484 kB
Committed_AS:  3279608 kB
PageTables:       1368 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= 66352 MiB
End job on node30 at 2009-04-01 15:55:45