Trace number 3169439

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
shortsattime+ 2011-03-02SAT 0.205968 0.206903

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v550-c2343-S1940049314-069.SATISFIABLE.cnf
MD5SUMc3d1d9237da00564d672945308bcff7c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010998
Satisfiable
(Un)Satisfiability was proved
Number of variables550
Number of clauses2343
Sum of the clauses size7029
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32343
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.20/0.20	c 0 clauses are redundant and removed
0.20/0.20	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.20/0.20	c 0 vars are fixed and 0 clauses are removed after lookahead
0.20/0.20	c initial seed is 113993866
0.20/0.20	c try=1 flip j=490021 walk=436603 seed 113993883
0.20/0.20	c A solution is found
0.20/0.20	s SATISFIABLE
0.20/0.20	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 -501 -502 503 504 505 506 -507 -508 509 -510 -511 -512 -513 -514 515 -516 517 -518 519 -520 521 -522 523 -524 -525 526 -527 528 -529 530 531 -532 -533 -534 535 536 -537 538 -539 540 541 -542 -543 -544 545 546 -547 548 -549 550 
0.20/0.20	v 0 
0.20/0.20	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3169439-1301709324/watcher-3169439-1301709324 -o /tmp/evaluation-result-3169439-1301709324/solver-3169439-1301709324 -C 2400 -W 1300 -M 7680 shortsattime+ HOME/instance-3169439-1301709324.cnf 113993639 

running on 2 cores: 1,3

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 7.55 7.96 7.66 3/174 27829
/proc/meminfo: memFree=19703132/32950940 swapFree=67111528/67111528
[pid=27829] ppid=27827 vsize=881028 CPUtime=0 cores=1,3
/proc/27829/stat : 27829 (shortsattime+) R 27827 27829 27789 0 -1 4202496 342 0 0 0 0 0 0 0 25 0 1 0 361163188 902172672 282 33554432000 4194304 4228340 140737194880960 18446744073709551615 4217339 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27829/statm: 220257 282 116 9 0 217414 0

[startup+0.0769441 s]
/proc/loadavg: 7.55 7.96 7.66 3/174 27829
/proc/meminfo: memFree=19703132/32950940 swapFree=67111528/67111528
[pid=27829] ppid=27827 vsize=881028 CPUtime=0.07 cores=1,3
/proc/27829/stat : 27829 (shortsattime+) R 27827 27829 27789 0 -1 4202496 342 0 0 0 7 0 0 0 25 0 1 0 361163188 902172672 282 33554432000 4194304 4228340 140737194880960 18446744073709551615 4218515 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27829/statm: 220257 282 116 9 0 217414 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 881028

[startup+0.100937 s]
/proc/loadavg: 7.55 7.96 7.66 3/174 27829
/proc/meminfo: memFree=19703132/32950940 swapFree=67111528/67111528
[pid=27829] ppid=27827 vsize=881028 CPUtime=0.1 cores=1,3
/proc/27829/stat : 27829 (shortsattime+) R 27827 27829 27789 0 -1 4202496 342 0 0 0 10 0 0 0 25 0 1 0 361163188 902172672 282 33554432000 4194304 4228340 140737194880960 18446744073709551615 4218940 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27829/statm: 220257 282 116 9 0 217414 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 881028

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

[startup+0.200919 s]
/proc/loadavg: 7.55 7.96 7.66 3/174 27829
/proc/meminfo: memFree=19703132/32950940 swapFree=67111528/67111528
[pid=27829] ppid=27827 vsize=881028 CPUtime=0.2 cores=1,3
/proc/27829/stat : 27829 (shortsattime+) R 27827 27829 27789 0 -1 4202496 342 0 0 0 20 0 0 0 25 0 1 0 361163188 902172672 282 33554432000 4194304 4228340 140737194880960 18446744073709551615 4217336 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27829/statm: 220257 282 116 9 0 217414 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 881028

Child status: 10
Real time (s): 0.206903
CPU time (s): 0.205968
CPU user time (s): 0.205968
CPU system time (s): 0
CPU usage (%): 99.5481
Max. virtual memory (cumulated for all children) (KiB): 881028

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.205968
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= 346
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= 3
involuntary context switches= 1

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node117 at 2011-04-02 03:55:24
IDJOB=3169439
IDBENCH=83057
IDSOLVER=1578
FILE ID=node117/3169439-1301709324
RUNJOBID= node117-1301709324-27809
PBS_JOBID= 12840870
Free space on /tmp= 70960 MiB

SOLVER NAME= shortsattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S1940049314-069.SATISFIABLE.cnf
COMMAND LINE= shortsattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3169439-1301709324/watcher-3169439-1301709324 -o /tmp/evaluation-result-3169439-1301709324/solver-3169439-1301709324 -C 2400 -W 1300 -M 7680  shortsattime+ HOME/instance-3169439-1301709324.cnf 113993639

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= c3d1d9237da00564d672945308bcff7c
RANDOM SEED=113993639

node117.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.849
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.69
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.849
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.849
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.849
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.849
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.849
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.849
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.849
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5267.44
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950940 kB
MemFree:      19703288 kB
Buffers:        381264 kB
Cached:       12497600 kB
SwapCached:          0 kB
Active:        8205216 kB
Inactive:      4737016 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950940 kB
LowFree:      19703288 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           23408 kB
Writeback:           0 kB
AnonPages:       63000 kB
Mapped:          14524 kB
Slab:           239800 kB
PageTables:       4928 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586996 kB
Committed_AS:   188400 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 70928 MiB
End job on node117 at 2011-04-02 03:55:24