Trace number 1523988

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 2.65559 2.65627

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/460/
unif-k3-r4.25-v460-c1955-S617358728-082.cnf
MD5SUMf77bf155457eaab086ae39f525f81379
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.06099
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 

2.59/2.65	c try 1 flip j 2551895
2.59/2.65	c A solution is found
2.59/2.65	s SATISFIABLE
2.59/2.65	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 
2.59/2.65	v 0 
2.59/2.65	c Done (mycputime is 2.650 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-1523988-1238593786/watcher-1523988-1238593786 -o /tmp/evaluation-result-1523988-1238593786/solver-1523988-1238593786 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/Hybrid2 HOME/instance-1523988-1238593786.cnf 1310093775 

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: 1.88 1.90 1.55 3/73 450
/proc/meminfo: memFree=1604736/2055920 swapFree=4177652/4192956
[pid=450] ppid=448 vsize=451072 CPUtime=0
/proc/450/stat : 450 (Hybrid2) R 448 450 32202 0 -1 4194304 139 0 0 0 0 0 0 0 18 0 1 0 1132042535 461897728 123 1992294400 134512640 135106774 4294956208 18446744073709551615 134524098 0 0 4096 0 0 0 0 17 0 0 0
/proc/450/statm: 112768 123 53 145 0 111644 0

[startup+0.028113 s]
/proc/loadavg: 1.88 1.90 1.55 3/73 450
/proc/meminfo: memFree=1604736/2055920 swapFree=4177652/4192956
[pid=450] ppid=448 vsize=454972 CPUtime=0.02
/proc/450/stat : 450 (Hybrid2) R 448 450 32202 0 -1 4194304 190 0 0 0 2 0 0 0 18 0 1 0 1132042535 465891328 174 1992294400 134512640 135106774 4294956208 18446744073709551615 134526833 0 0 4096 0 0 0 0 17 0 0 0
/proc/450/statm: 113743 174 56 145 0 112619 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 454972

[startup+0.101119 s]
/proc/loadavg: 1.88 1.90 1.55 3/73 450
/proc/meminfo: memFree=1604736/2055920 swapFree=4177652/4192956
[pid=450] ppid=448 vsize=454972 CPUtime=0.09
/proc/450/stat : 450 (Hybrid2) R 448 450 32202 0 -1 4194304 190 0 0 0 9 0 0 0 18 0 1 0 1132042535 465891328 174 1992294400 134512640 135106774 4294956208 18446744073709551615 134566399 0 0 4096 0 0 0 0 17 0 0 0
/proc/450/statm: 113743 174 56 145 0 112619 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 454972

[startup+0.301139 s]
/proc/loadavg: 1.88 1.90 1.55 3/73 450
/proc/meminfo: memFree=1604736/2055920 swapFree=4177652/4192956
[pid=450] ppid=448 vsize=454972 CPUtime=0.29
/proc/450/stat : 450 (Hybrid2) R 448 450 32202 0 -1 4194304 190 0 0 0 29 0 0 0 19 0 1 0 1132042535 465891328 174 1992294400 134512640 135106774 4294956208 18446744073709551615 134518187 0 0 4096 0 0 0 0 17 0 0 0
/proc/450/statm: 113743 174 56 145 0 112619 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 454972

[startup+0.70118 s]
/proc/loadavg: 1.88 1.90 1.55 3/73 450
/proc/meminfo: memFree=1604736/2055920 swapFree=4177652/4192956
[pid=450] ppid=448 vsize=454972 CPUtime=0.69
/proc/450/stat : 450 (Hybrid2) R 448 450 32202 0 -1 4194304 190 0 0 0 69 0 0 0 23 0 1 0 1132042535 465891328 174 1992294400 134512640 135106774 4294956208 18446744073709551615 134526862 0 0 4096 0 0 0 0 17 0 0 0
/proc/450/statm: 113743 174 56 145 0 112619 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 454972

[startup+1.50126 s]
/proc/loadavg: 1.88 1.90 1.55 2/74 451
/proc/meminfo: memFree=1604088/2055920 swapFree=4177652/4192956
[pid=450] ppid=448 vsize=454972 CPUtime=1.49
/proc/450/stat : 450 (Hybrid2) R 448 450 32202 0 -1 4194304 190 0 0 0 149 0 0 0 25 0 1 0 1132042535 465891328 174 1992294400 134512640 135106774 4294956208 18446744073709551615 134528683 0 0 4096 0 0 0 0 17 0 0 0
/proc/450/statm: 113743 174 56 145 0 112619 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 454972

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

[startup+2.30134 s]
/proc/loadavg: 1.88 1.90 1.55 2/74 451
/proc/meminfo: memFree=1603896/2055920 swapFree=4177652/4192956
[pid=450] ppid=448 vsize=454972 CPUtime=2.29
/proc/450/stat : 450 (Hybrid2) R 448 450 32202 0 -1 4194304 190 0 0 0 229 0 0 0 25 0 1 0 1132042535 465891328 174 1992294400 134512640 135106774 4294956208 18446744073709551615 134526580 0 0 4096 0 0 0 0 17 0 0 0
/proc/450/statm: 113743 174 56 145 0 112619 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 454972

[startup+2.50136 s]
/proc/loadavg: 1.88 1.90 1.55 2/74 451
/proc/meminfo: memFree=1603896/2055920 swapFree=4177652/4192956
[pid=450] ppid=448 vsize=454972 CPUtime=2.49
/proc/450/stat : 450 (Hybrid2) R 448 450 32202 0 -1 4194304 190 0 0 0 249 0 0 0 25 0 1 0 1132042535 465891328 174 1992294400 134512640 135106774 4294956208 18446744073709551615 134528303 0 0 4096 0 0 0 0 17 0 0 0
/proc/450/statm: 113743 174 56 145 0 112619 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 454972

[startup+2.60137 s]
/proc/loadavg: 1.88 1.90 1.55 2/74 451
/proc/meminfo: memFree=1603896/2055920 swapFree=4177652/4192956
[pid=450] ppid=448 vsize=454972 CPUtime=2.59
/proc/450/stat : 450 (Hybrid2) R 448 450 32202 0 -1 4194304 190 0 0 0 259 0 0 0 25 0 1 0 1132042535 465891328 174 1992294400 134512640 135106774 4294956208 18446744073709551615 134527279 0 0 4096 0 0 0 0 17 0 0 0
/proc/450/statm: 113743 174 56 145 0 112619 0
Current children cumulated CPU time (s) 2.59
Current children cumulated vsize (KiB) 454972

Child status: 10
Real time (s): 2.65627
CPU time (s): 2.65559
CPU user time (s): 2.6516
CPU system time (s): 0.003999
CPU usage (%): 99.9747
Max. virtual memory (cumulated for all children) (KiB): 454972

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.6516
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 207
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= 9

runsolver used 0.001999 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node84 at 2009-04-01 15:49:46
IDJOB=1523988
IDBENCH=70727
IDSOLVER=530
FILE ID=node84/1523988-1238593786
PBS_JOBID= 9062236
Free space on /tmp= 66312 MiB

SOLVER NAME= Hybrid2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/460/unif-k3-r4.25-v460-c1955-S617358728-082.cnf
COMMAND LINE= HOME/Hybrid2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523988-1238593786/watcher-1523988-1238593786 -o /tmp/evaluation-result-1523988-1238593786/solver-1523988-1238593786 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/Hybrid2 HOME/instance-1523988-1238593786.cnf 1310093775

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

MD5SUM BENCH= f77bf155457eaab086ae39f525f81379
RANDOM SEED=1310093775

node84.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		: 3000.231
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		: 3000.231
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:       1605152 kB
Buffers:         85384 kB
Cached:         275280 kB
SwapCached:       6944 kB
Active:         206896 kB
Inactive:       162960 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1605152 kB
SwapTotal:     4192956 kB
SwapFree:      4177652 kB
Dirty:            4604 kB
Writeback:           0 kB
Mapped:          14860 kB
Slab:            65940 kB
Committed_AS:  3040712 kB
PageTables:       1980 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= 66308 MiB
End job on node84 at 2009-04-01 15:49:49