Trace number 1523967

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
Hybrid2 2009-03-22SAT 0.110982 0.11165

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/480/
unif-k3-r4.25-v480-c2040-S554804223-012.cnf
MD5SUMfb88daaef532d2aea4a43cab65510e36
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.017996
Satisfiable
(Un)Satisfiability was proved
Number of variables480
Number of clauses2040
Sum of the clauses size6120
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32040
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.09/0.11	c try 1 flip j 100675
0.09/0.11	c A solution is found
0.09/0.11	s SATISFIABLE
0.09/0.11	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 
0.09/0.11	v 0 
0.09/0.11	c Done (mycputime is 0.110 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-1523967-1238591354/watcher-1523967-1238591354 -o /tmp/evaluation-result-1523967-1238591354/solver-1523967-1238591354 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/Hybrid2 HOME/instance-1523967-1238591354.cnf 1574724577 

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 1.01 3/73 396
/proc/meminfo: memFree=1453040/2055920 swapFree=4170060/4192956
[pid=396] ppid=394 vsize=451072 CPUtime=0
/proc/396/stat : 396 (Hybrid2) R 394 396 32272 0 -1 4194304 141 0 0 0 0 0 0 0 20 0 1 0 1131799355 461897728 125 1992294400 134512640 135106774 4294956208 18446744073709551615 134524005 0 0 4096 0 0 0 0 17 1 0 0
/proc/396/statm: 112768 125 53 145 0 111644 0

[startup+0.080516 s]
/proc/loadavg: 1.00 1.00 1.01 3/73 396
/proc/meminfo: memFree=1453040/2055920 swapFree=4170060/4192956
[pid=396] ppid=394 vsize=454972 CPUtime=0.07
/proc/396/stat : 396 (Hybrid2) R 394 396 32272 0 -1 4194304 194 0 0 0 7 0 0 0 20 0 1 0 1131799355 465891328 178 1992294400 134512640 135106774 4294956208 18446744073709551615 134527128 0 0 4096 0 0 0 0 17 1 0 0
/proc/396/statm: 113743 178 56 145 0 112619 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 454972

[startup+0.10152 s]
/proc/loadavg: 1.00 1.00 1.01 3/73 396
/proc/meminfo: memFree=1453040/2055920 swapFree=4170060/4192956
[pid=396] ppid=394 vsize=454972 CPUtime=0.09
/proc/396/stat : 396 (Hybrid2) R 394 396 32272 0 -1 4194304 194 0 0 0 9 0 0 0 20 0 1 0 1131799355 465891328 178 1992294400 134512640 135106774 4294956208 18446744073709551615 134567425 0 0 4096 0 0 0 0 17 1 0 0
/proc/396/statm: 113743 178 56 145 0 112619 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 454972

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

Child status: 10
Real time (s): 0.11165
CPU time (s): 0.110982
CPU user time (s): 0.109983
CPU system time (s): 0.000999
CPU usage (%): 99.4017
Max. virtual memory (cumulated for all children) (KiB): 454972

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.109983
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= 213
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= 0

runsolver used 0.002999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node80 at 2009-04-01 15:09:14
IDJOB=1523967
IDBENCH=70720
IDSOLVER=530
FILE ID=node80/1523967-1238591354
PBS_JOBID= 9062226
Free space on /tmp= 64800 MiB

SOLVER NAME= Hybrid2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/480/unif-k3-r4.25-v480-c2040-S554804223-012.cnf
COMMAND LINE= HOME/Hybrid2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523967-1238591354/watcher-1523967-1238591354 -o /tmp/evaluation-result-1523967-1238591354/solver-1523967-1238591354 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/Hybrid2 HOME/instance-1523967-1238591354.cnf 1574724577

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

MD5SUM BENCH= fb88daaef532d2aea4a43cab65510e36
RANDOM SEED=1574724577

node80.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		: 3000.263
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		: 3000.263
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1453456 kB
Buffers:         92948 kB
Cached:         412276 kB
SwapCached:      14568 kB
Active:         242556 kB
Inactive:       279176 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1453456 kB
SwapTotal:     4192956 kB
SwapFree:      4170060 kB
Dirty:            4616 kB
Writeback:           0 kB
Mapped:          22016 kB
Slab:            65780 kB
Committed_AS:  3018268 kB
PageTables:       2008 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= 64796 MiB
End job on node80 at 2009-04-01 15:09:14