Trace number 1523961

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 1.21381 1.21378

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/480/
unif-k3-r4.25-v480-c2040-S1338462531-082.cnf
MD5SUM8cb1176508e2efdfe13581d28c3b3032
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012997
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 

1.19/1.21	c try 1 flip j 1070481
1.19/1.21	c A solution is found
1.19/1.21	s SATISFIABLE
1.19/1.21	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 
1.19/1.21	v 0 
1.19/1.21	c Done (mycputime is 1.210 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-1523961-1238590582/watcher-1523961-1238590582 -o /tmp/evaluation-result-1523961-1238590582/solver-1523961-1238590582 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/Hybrid2 HOME/instance-1523961-1238590582.cnf 941786000 

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 1.00 3/68 24447
/proc/meminfo: memFree=1508216/2055920 swapFree=4175244/4192956
[pid=24447] ppid=24445 vsize=451072 CPUtime=0
/proc/24447/stat : 24447 (Hybrid2) R 24445 24447 24321 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 1131719752 461897728 125 1992294400 134512640 135106774 4294956224 18446744073709551615 134523986 0 0 4096 0 0 0 0 17 1 0 0
/proc/24447/statm: 112768 125 53 145 0 111644 0

[startup+0.019247 s]
/proc/loadavg: 1.00 1.00 1.00 3/68 24447
/proc/meminfo: memFree=1508216/2055920 swapFree=4175244/4192956
[pid=24447] ppid=24445 vsize=454972 CPUtime=0.01
/proc/24447/stat : 24447 (Hybrid2) R 24445 24447 24321 0 -1 4194304 193 0 0 0 1 0 0 0 18 0 1 0 1131719752 465891328 177 1992294400 134512640 135106774 4294956224 18446744073709551615 134566475 0 0 4096 0 0 0 0 17 1 0 0
/proc/24447/statm: 113743 177 56 145 0 112619 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 454972

[startup+0.101254 s]
/proc/loadavg: 1.00 1.00 1.00 3/68 24447
/proc/meminfo: memFree=1508216/2055920 swapFree=4175244/4192956
[pid=24447] ppid=24445 vsize=454972 CPUtime=0.09
/proc/24447/stat : 24447 (Hybrid2) R 24445 24447 24321 0 -1 4194304 193 0 0 0 9 0 0 0 18 0 1 0 1131719752 465891328 177 1992294400 134512640 135106774 4294956224 18446744073709551615 134526846 0 0 4096 0 0 0 0 17 1 0 0
/proc/24447/statm: 113743 177 56 145 0 112619 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 454972

[startup+0.301273 s]
/proc/loadavg: 1.00 1.00 1.00 3/68 24447
/proc/meminfo: memFree=1508216/2055920 swapFree=4175244/4192956
[pid=24447] ppid=24445 vsize=454972 CPUtime=0.29
/proc/24447/stat : 24447 (Hybrid2) R 24445 24447 24321 0 -1 4194304 193 0 0 0 29 0 0 0 19 0 1 0 1131719752 465891328 177 1992294400 134512640 135106774 4294956224 18446744073709551615 134526810 0 0 4096 0 0 0 0 17 1 0 0
/proc/24447/statm: 113743 177 56 145 0 112619 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 454972

[startup+0.701314 s]
/proc/loadavg: 1.00 1.00 1.00 3/68 24447
/proc/meminfo: memFree=1508216/2055920 swapFree=4175244/4192956
[pid=24447] ppid=24445 vsize=454972 CPUtime=0.69
/proc/24447/stat : 24447 (Hybrid2) R 24445 24447 24321 0 -1 4194304 193 0 0 0 69 0 0 0 22 0 1 0 1131719752 465891328 177 1992294400 134512640 135106774 4294956224 18446744073709551615 134526862 0 0 4096 0 0 0 0 17 1 0 0
/proc/24447/statm: 113743 177 56 145 0 112619 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 454972

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

[startup+1.10636 s]
/proc/loadavg: 1.00 1.00 1.00 2/69 24448
/proc/meminfo: memFree=1507568/2055920 swapFree=4175244/4192956
[pid=24447] ppid=24445 vsize=454972 CPUtime=1.1
/proc/24447/stat : 24447 (Hybrid2) R 24445 24447 24321 0 -1 4194304 193 0 0 0 110 0 0 0 25 0 1 0 1131719752 465891328 177 1992294400 134512640 135106774 4294956224 18446744073709551615 134527909 0 0 4096 0 0 0 0 17 1 0 0
/proc/24447/statm: 113743 177 56 145 0 112619 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 454972

[startup+1.20136 s]
/proc/loadavg: 1.00 1.00 1.00 2/69 24448
/proc/meminfo: memFree=1507568/2055920 swapFree=4175244/4192956
[pid=24447] ppid=24445 vsize=454972 CPUtime=1.19
/proc/24447/stat : 24447 (Hybrid2) R 24445 24447 24321 0 -1 4194304 193 0 0 0 119 0 0 0 25 0 1 0 1131719752 465891328 177 1992294400 134512640 135106774 4294956224 18446744073709551615 134527125 0 0 4096 0 0 0 0 17 1 0 0
/proc/24447/statm: 113743 177 56 145 0 112619 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 454972

Child status: 10
Real time (s): 1.21378
CPU time (s): 1.21381
CPU user time (s): 1.20982
CPU system time (s): 0.003999
CPU usage (%): 100.003
Max. virtual memory (cumulated for all children) (KiB): 454972

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.20982
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= 210
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 0.006998 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node60 at 2009-04-01 14:56:22
IDJOB=1523961
IDBENCH=70718
IDSOLVER=530
FILE ID=node60/1523961-1238590582
PBS_JOBID= 9068308
Free space on /tmp= 66548 MiB

SOLVER NAME= Hybrid2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/480/unif-k3-r4.25-v480-c2040-S1338462531-082.cnf
COMMAND LINE= HOME/Hybrid2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523961-1238590582/watcher-1523961-1238590582 -o /tmp/evaluation-result-1523961-1238590582/solver-1523961-1238590582 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/Hybrid2 HOME/instance-1523961-1238590582.cnf 941786000

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

MD5SUM BENCH= 8cb1176508e2efdfe13581d28c3b3032
RANDOM SEED=941786000

node60.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		: 3000.202
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		: 3000.202
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:       1508632 kB
Buffers:         97300 kB
Cached:         356372 kB
SwapCached:      11040 kB
Active:         225016 kB
Inactive:       241788 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1508632 kB
SwapTotal:     4192956 kB
SwapFree:      4175244 kB
Dirty:            4612 kB
Writeback:           0 kB
Mapped:          18476 kB
Slab:            65980 kB
Committed_AS:  3453380 kB
PageTables:       1712 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= 66544 MiB
End job on node60 at 2009-04-01 14:56:23