Trace number 3266371

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 0.137978 0.139542

General information on the benchmark

NameSAT02/handmade/simon/
satex-challenges/f600.shuffled.cnf
MD5SUMd42133fd7674f41611be43d1b8ca7db6
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011997
Satisfiable
(Un)Satisfiability was proved
Number of variables600
Number of clauses2550
Sum of the clauses size7650
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32550
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.09/0.13	c 0 clauses are redundant and removed
0.09/0.13	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.09/0.13	c 0 vars are fixed and 0 clauses are removed after lookahead
0.09/0.13	c initial seed is 893583128
0.09/0.13	c try=1 flip j=326622 walk=290988 seed 893583145
0.09/0.13	c A solution is found
0.09/0.13	s SATISFIABLE
0.09/0.13	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 -551 552 553 554 -555 -556 -557 558 -559 560 561 562 -563 -564 -565 566 -567 -568 -569 570 -571 572 -573 -574 -575 -576 577 -578 579 -580 581 -582 -583 -584 -585 586 -587 588 589 -590 591 592 593 594 -595 596 -597 -598 599 600 
0.09/0.13	v 0 
0.09/0.13	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

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-3266371-1303581938/watcher-3266371-1303581938 -o /tmp/evaluation-result-3266371-1303581938/solver-3266371-1303581938 -C 2400 -W 1300 -M 7680 shortsattime+ HOME/instance-3266371-1303581938.cnf 893582901 

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: 3.71 3.94 3.91 4/180 21051
/proc/meminfo: memFree=17437784/32951124 swapFree=67111528/67111528
[pid=21051] ppid=21048 vsize=881028 CPUtime=0 cores=1,3
/proc/21051/stat : 21051 (shortsattime+) R 21048 21051 20669 0 -1 4202496 351 0 0 0 0 0 0 0 22 0 1 0 450609671 902172672 293 33554432000 4194304 4228340 140735284782288 18446744073709551615 4214565 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/21051/statm: 220257 293 116 9 0 217414 0

[startup+0.097689 s]
/proc/loadavg: 3.71 3.94 3.91 4/180 21051
/proc/meminfo: memFree=17437784/32951124 swapFree=67111528/67111528
[pid=21051] ppid=21048 vsize=881028 CPUtime=0.09 cores=1,3
/proc/21051/stat : 21051 (shortsattime+) R 21048 21051 20669 0 -1 4202496 351 0 0 0 9 0 0 0 22 0 1 0 450609671 902172672 293 33554432000 4194304 4228340 140735284782288 18446744073709551615 4218515 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/21051/statm: 220257 293 116 9 0 217414 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 881028

[startup+0.100708 s]
/proc/loadavg: 3.71 3.94 3.91 4/180 21051
/proc/meminfo: memFree=17437784/32951124 swapFree=67111528/67111528
[pid=21051] ppid=21048 vsize=881028 CPUtime=0.09 cores=1,3
/proc/21051/stat : 21051 (shortsattime+) R 21048 21051 20669 0 -1 4202496 351 0 0 0 9 0 0 0 22 0 1 0 450609671 902172672 293 33554432000 4194304 4228340 140735284782288 18446744073709551615 4216976 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/21051/statm: 220257 293 116 9 0 217414 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 881028

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

Child status: 10
Real time (s): 0.139542
CPU time (s): 0.137978
CPU user time (s): 0.135979
CPU system time (s): 0.001999
CPU usage (%): 98.8791
Max. virtual memory (cumulated for all children) (KiB): 881028

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.135979
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 355
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 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node147 at 2011-04-23 20:05:38
IDJOB=3266371
IDBENCH=87732
IDSOLVER=1578
FILE ID=node147/3266371-1303581938
RUNJOBID= node147-1303581937-20999
PBS_JOBID= 13150341
Free space on /tmp= 72280 MiB

SOLVER NAME= shortsattime+ 2011-03-02
BENCH NAME= SAT02/handmade/simon/satex-challenges/f600.shuffled.cnf
COMMAND LINE= shortsattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3266371-1303581938/watcher-3266371-1303581938 -o /tmp/evaluation-result-3266371-1303581938/solver-3266371-1303581938 -C 2400 -W 1300 -M 7680  shortsattime+ HOME/instance-3266371-1303581938.cnf 893582901

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

MD5SUM BENCH= d42133fd7674f41611be43d1b8ca7db6
RANDOM SEED=893582901

node147.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		: 2666.836
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	: 5333.67
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		: 2666.836
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		: 2666.836
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	: 5332.82
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		: 2666.836
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		: 2666.836
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	: 5332.82
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		: 2666.836
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	: 5332.76
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		: 2666.836
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	: 5332.82
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		: 2666.836
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      17438072 kB
Buffers:       1729040 kB
Cached:       13174068 kB
SwapCached:          0 kB
Active:        7722620 kB
Inactive:      7246628 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      17438072 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           15688 kB
Writeback:           0 kB
AnonPages:       65464 kB
Mapped:          14788 kB
Slab:           480392 kB
PageTables:       5372 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  1088384 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= 72272 MiB
End job on node147 at 2011-04-23 20:05:38