Trace number 3426966

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
sattime2011 2011-03-02SAT 0.038993 0.038747

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v600-c2556-S727005963-093.SATISFIABLE.cnf
MD5SUM91e4bda9499071fffccca1352d82691f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.028995
Satisfiable
(Un)Satisfiability was proved
Number of variables600
Number of clauses2556
Sum of the clauses size7668
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32556
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.03/0.03	c 0 clauses are redundant and removed
0.03/0.03	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.03/0.03	c 0 vars are fixed and 0 clauses are removed after lookahead
0.03/0.03	c initial seed is 615360029
0.03/0.03	c try=1 flip j=69405 walk=59640 seed 615360046
0.03/0.03	c A solution is found
0.03/0.03	s SATISFIABLE
0.03/0.03	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 
0.03/0.03	v 0 
0.03/0.03	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: 961)

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-3426966-1306781790/watcher-3426966-1306781790 -o /tmp/evaluation-result-3426966-1306781790/solver-3426966-1306781790 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426966-1306781790.cnf 615356572 

running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.01 2.00 1/500 9905
/proc/meminfo: memFree=5562396/32951124 swapFree=51851948/67111528
[pid=9905] ppid=9903 vsize=1185848 CPUtime=0 cores=1,3,5,7
/proc/9905/stat : 9905 (sattime2011) R 9903 9905 8920 0 -1 4202496 391 0 0 0 0 0 0 0 25 0 1 0 789781587 1214308352 334 33554432000 4194304 4230460 140737456183440 18446744073709551615 4221584 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/9905/statm: 296462 334 117 9 0 293619 0

[startup+0.034357 s]
/proc/loadavg: 2.00 2.01 2.00 1/500 9905
/proc/meminfo: memFree=5562396/32951124 swapFree=51851948/67111528
[pid=9905] ppid=9903 vsize=1185848 CPUtime=0.03 cores=1,3,5,7
/proc/9905/stat : 9905 (sattime2011) R 9903 9905 8920 0 -1 4202496 391 0 0 0 3 0 0 0 25 0 1 0 789781587 1214308352 334 33554432000 4194304 4230460 140737456183440 18446744073709551615 4224196 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/9905/statm: 296462 334 117 9 0 293619 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1185848

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

[startup+0.034357 s]
/proc/loadavg: 2.00 2.01 2.00 1/500 9905
/proc/meminfo: memFree=5562396/32951124 swapFree=51851948/67111528
[pid=9905] ppid=9903 vsize=1185848 CPUtime=0.03 cores=1,3,5,7
/proc/9905/stat : 9905 (sattime2011) R 9903 9905 8920 0 -1 4202496 391 0 0 0 3 0 0 0 25 0 1 0 789781587 1214308352 334 33554432000 4194304 4230460 140737456183440 18446744073709551615 4224196 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/9905/statm: 296462 334 117 9 0 293619 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1185848

Child status: 10
Real time (s): 0.038747
CPU time (s): 0.038993
CPU user time (s): 0.036994
CPU system time (s): 0.001999
CPU usage (%): 100.635
Max. virtual memory (cumulated for all children) (KiB): 1185848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.036994
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= 395
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= 1

runsolver used 0.000999 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node103 at 2011-05-30 20:56:30
IDJOB=3426966
IDBENCH=82938
IDSOLVER=1924
FILE ID=node103/3426966-1306781790
RUNJOBID= node103-1306781789-9842
PBS_JOBID= 13475021
Free space on /tmp= 57956 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v600-c2556-S727005963-093.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426966-1306781790/watcher-3426966-1306781790 -o /tmp/evaluation-result-3426966-1306781790/solver-3426966-1306781790 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426966-1306781790.cnf 615356572

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 91e4bda9499071fffccca1352d82691f
RANDOM SEED=615356572

node103.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		: 2666.858
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	: 5333.71
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		: 2666.858
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		: 2666.858
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	: 5332.75
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		: 2666.858
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	: 5332.77
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		: 2666.858
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		: 2666.858
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	: 5332.75
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		: 2666.858
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	: 5332.83
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		: 2666.858
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:       5562544 kB
Buffers:        400968 kB
Cached:       24413864 kB
SwapCached:     191244 kB
Active:       18431660 kB
Inactive:      8219908 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       5562544 kB
SwapTotal:    67111528 kB
SwapFree:     51851948 kB
Dirty:            7800 kB
Writeback:           0 kB
AnonPages:     1655528 kB
Mapped:          22208 kB
Slab:           593832 kB
PageTables:      73240 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 162035772 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= 57956 MiB
End job on node103 at 2011-05-30 20:56:30