Trace number 1523766

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 2.99554 2.99693

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/500/
unif-k3-r4.25-v500-c2125-S353643296-086.cnf
MD5SUM737f90cc4667953389f21d8a50271567
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.021996
Satisfiable
(Un)Satisfiability was proved
Number of variables500
Number of clauses2125
Sum of the clauses size6375
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32125
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

2.89/2.99	c try 1 flip j 2821318
2.89/2.99	c A solution is found
2.89/2.99	s SATISFIABLE
2.89/2.99	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 
2.89/2.99	v 0 
2.89/2.99	c Done (mycputime is 2.990 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-1523766-1238571506/watcher-1523766-1238571506 -o /tmp/evaluation-result-1523766-1238571506/solver-1523766-1238571506 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/Hybrid2 HOME/instance-1523766-1238571506.cnf 163144682 

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 1.09 3/73 15583
/proc/meminfo: memFree=1372128/2055920 swapFree=4175408/4192956
[pid=15583] ppid=15581 vsize=451072 CPUtime=0
/proc/15583/stat : 15583 (Hybrid2) R 15581 15583 15492 0 -1 4194304 142 0 0 0 0 0 0 0 20 0 1 0 1009569161 461897728 126 1992294400 134512640 135106774 4294956224 18446744073709551615 134524005 0 0 4096 0 0 0 0 17 1 0 0
/proc/15583/statm: 112768 126 53 145 0 111644 0

[startup+0.0431299 s]
/proc/loadavg: 1.00 1.00 1.09 3/73 15583
/proc/meminfo: memFree=1372128/2055920 swapFree=4175408/4192956
[pid=15583] ppid=15581 vsize=454972 CPUtime=0.04
/proc/15583/stat : 15583 (Hybrid2) R 15581 15583 15492 0 -1 4194304 196 0 0 0 4 0 0 0 20 0 1 0 1009569161 465891328 180 1992294400 134512640 135106774 4294956224 18446744073709551615 134526596 0 0 4096 0 0 0 0 17 1 0 0
/proc/15583/statm: 113743 180 56 145 0 112619 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 454972

[startup+0.102136 s]
/proc/loadavg: 1.00 1.00 1.09 3/73 15583
/proc/meminfo: memFree=1372128/2055920 swapFree=4175408/4192956
[pid=15583] ppid=15581 vsize=454972 CPUtime=0.1
/proc/15583/stat : 15583 (Hybrid2) R 15581 15583 15492 0 -1 4194304 196 0 0 0 10 0 0 0 21 0 1 0 1009569161 465891328 180 1992294400 134512640 135106774 4294956224 18446744073709551615 134518107 0 0 4096 0 0 0 0 17 1 0 0
/proc/15583/statm: 113743 180 56 145 0 112619 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 454972

[startup+0.302155 s]
/proc/loadavg: 1.00 1.00 1.09 3/73 15583
/proc/meminfo: memFree=1372128/2055920 swapFree=4175408/4192956
[pid=15583] ppid=15581 vsize=454972 CPUtime=0.3
/proc/15583/stat : 15583 (Hybrid2) R 15581 15583 15492 0 -1 4194304 196 0 0 0 30 0 0 0 23 0 1 0 1009569161 465891328 180 1992294400 134512640 135106774 4294956224 18446744073709551615 134527205 0 0 4096 0 0 0 0 17 1 0 0
/proc/15583/statm: 113743 180 56 145 0 112619 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 454972

[startup+0.702197 s]
/proc/loadavg: 1.00 1.00 1.09 3/73 15583
/proc/meminfo: memFree=1372128/2055920 swapFree=4175408/4192956
[pid=15583] ppid=15581 vsize=454972 CPUtime=0.7
/proc/15583/stat : 15583 (Hybrid2) R 15581 15583 15492 0 -1 4194304 196 0 0 0 70 0 0 0 25 0 1 0 1009569161 465891328 180 1992294400 134512640 135106774 4294956224 18446744073709551615 134526433 0 0 4096 0 0 0 0 17 1 0 0
/proc/15583/statm: 113743 180 56 145 0 112619 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 454972

[startup+1.50128 s]
/proc/loadavg: 1.00 1.00 1.09 2/74 15584
/proc/meminfo: memFree=1371416/2055920 swapFree=4175408/4192956
[pid=15583] ppid=15581 vsize=454972 CPUtime=1.49
/proc/15583/stat : 15583 (Hybrid2) R 15581 15583 15492 0 -1 4194304 196 0 0 0 149 0 0 0 25 0 1 0 1009569161 465891328 180 1992294400 134512640 135106774 4294956224 18446744073709551615 134527279 0 0 4096 0 0 0 0 17 1 0 0
/proc/15583/statm: 113743 180 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+2.30136 s]
/proc/loadavg: 1.00 1.00 1.09 2/74 15584
/proc/meminfo: memFree=1371288/2055920 swapFree=4175408/4192956
[pid=15583] ppid=15581 vsize=454972 CPUtime=2.29
/proc/15583/stat : 15583 (Hybrid2) R 15581 15583 15492 0 -1 4194304 196 0 0 0 229 0 0 0 25 0 1 0 1009569161 465891328 180 1992294400 134512640 135106774 4294956224 18446744073709551615 134518112 0 0 4096 0 0 0 0 17 1 0 0
/proc/15583/statm: 113743 180 56 145 0 112619 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 454972

[startup+2.70141 s]
/proc/loadavg: 1.00 1.00 1.09 2/74 15584
/proc/meminfo: memFree=1371288/2055920 swapFree=4175408/4192956
[pid=15583] ppid=15581 vsize=454972 CPUtime=2.69
/proc/15583/stat : 15583 (Hybrid2) R 15581 15583 15492 0 -1 4194304 196 0 0 0 269 0 0 0 25 0 1 0 1009569161 465891328 180 1992294400 134512640 135106774 4294956224 18446744073709551615 134518079 0 0 4096 0 0 0 0 17 1 0 0
/proc/15583/statm: 113743 180 56 145 0 112619 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 454972

[startup+2.90143 s]
/proc/loadavg: 1.00 1.00 1.09 2/74 15584
/proc/meminfo: memFree=1371288/2055920 swapFree=4175408/4192956
[pid=15583] ppid=15581 vsize=454972 CPUtime=2.89
/proc/15583/stat : 15583 (Hybrid2) R 15581 15583 15492 0 -1 4194304 196 0 0 0 289 0 0 0 25 0 1 0 1009569161 465891328 180 1992294400 134512640 135106774 4294956224 18446744073709551615 134527357 0 0 4096 0 0 0 0 17 1 0 0
/proc/15583/statm: 113743 180 56 145 0 112619 0
Current children cumulated CPU time (s) 2.89
Current children cumulated vsize (KiB) 454972

Child status: 10
Real time (s): 2.99693
CPU time (s): 2.99554
CPU user time (s): 2.99554
CPU system time (s): 0
CPU usage (%): 99.9539
Max. virtual memory (cumulated for all children) (KiB): 454972

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.99554
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= 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= 8

runsolver used 0.005999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node79 at 2009-04-01 09:38:26
IDJOB=1523766
IDBENCH=70653
IDSOLVER=530
FILE ID=node79/1523766-1238571506
PBS_JOBID= 9062188
Free space on /tmp= 65556 MiB

SOLVER NAME= Hybrid2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/500/unif-k3-r4.25-v500-c2125-S353643296-086.cnf
COMMAND LINE= HOME/Hybrid2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523766-1238571506/watcher-1523766-1238571506 -o /tmp/evaluation-result-1523766-1238571506/solver-1523766-1238571506 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/Hybrid2 HOME/instance-1523766-1238571506.cnf 163144682

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

MD5SUM BENCH= 737f90cc4667953389f21d8a50271567
RANDOM SEED=163144682

node79.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		: 3000.232
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		: 3000.232
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:       1372608 kB
Buffers:         93532 kB
Cached:         484032 kB
SwapCached:      11792 kB
Active:         337188 kB
Inactive:       256540 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1372608 kB
SwapTotal:     4192956 kB
SwapFree:      4175408 kB
Dirty:            4608 kB
Writeback:           0 kB
Mapped:          22636 kB
Slab:            74700 kB
Committed_AS:  2765764 kB
PageTables:       2004 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= 65552 MiB
End job on node79 at 2009-04-01 09:38:29