Trace number 3221395

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
sparrow2011 sparrow2011_ubcsat1.2_2011-03-02SAT 0.095984 0.0958791

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v600-c2556-S252359291-002.SATISFIABLE.cnf
MD5SUMe7d056c40976f07c31ebd30dc9590b89
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.022995
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 

0.07/0.09	c 
0.07/0.09	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
0.07/0.09	c 
0.07/0.09	c http://www.satlib.org/ubcsat
0.07/0.09	c 
0.07/0.09	c ubcsat -h for help
0.07/0.09	c 
0.07/0.09	s SATISFIABLE
0.07/0.09	v  1 -2 3 4 -5 6 -7 -8 9 -10
0.07/0.09	v  -11 12 -13 14 15 -16 -17 18 19 20
0.07/0.09	v  21 22 -23 24 25 -26 -27 28 -29 -30
0.07/0.09	v  -31 -32 33 34 -35 36 -37 38 -39 40
0.07/0.09	v  -41 42 43 44 -45 -46 -47 -48 49 50
0.07/0.09	v  51 -52 53 -54 55 56 57 58 -59 -60
0.07/0.09	v  -61 -62 63 64 -65 66 -67 68 69 70
0.07/0.09	v  -71 72 73 74 75 -76 77 78 -79 -80
0.07/0.09	v  -81 82 83 -84 85 86 87 -88 89 -90
0.07/0.09	v  91 -92 -93 94 -95 -96 97 98 99 100
0.07/0.09	v  -101 -102 103 104 105 -106 -107 -108 109 -110
0.07/0.09	v  111 112 113 114 -115 -116 -117 118 -119 120
0.07/0.09	v  121 -122 -123 -124 -125 -126 127 128 -129 -130
0.07/0.09	v  131 132 -133 134 -135 136 137 138 139 140
0.07/0.09	v  141 -142 143 144 -145 146 -147 148 -149 150
0.07/0.09	v  -151 -152 153 154 -155 -156 157 158 159 160
0.07/0.09	v  -161 162 163 -164 -165 -166 -167 -168 -169 -170
0.07/0.09	v  171 -172 -173 -174 175 176 177 178 179 -180
0.07/0.09	v  181 -182 -183 -184 185 -186 187 188 -189 190
0.07/0.09	v  191 -192 -193 194 -195 196 -197 198 199 -200
0.07/0.09	v  201 202 -203 -204 205 -206 -207 208 209 -210
0.07/0.09	v  211 -212 213 214 215 -216 217 218 219 220
0.07/0.09	v  -221 222 223 224 225 226 -227 -228 -229 -230
0.07/0.09	v  -231 -232 233 234 -235 -236 237 238 -239 -240
0.07/0.09	v  -241 242 -243 -244 245 -246 247 -248 249 -250
0.07/0.09	v  -251 252 253 254 -255 256 257 258 -259 -260
0.07/0.09	v  -261 262 263 -264 -265 266 267 268 269 -270
0.07/0.09	v  -271 272 -273 -274 275 -276 -277 278 279 280
0.07/0.09	v  281 282 283 284 285 -286 -287 -288 289 290
0.07/0.09	v  -291 -292 -293 -294 295 296 -297 298 -299 -300
0.07/0.09	v  -301 302 -303 304 -305 -306 -307 308 -309 310
0.07/0.09	v  -311 312 -313 314 315 -316 317 -318 -319 320
0.07/0.09	v  321 -322 -323 324 -325 326 -327 328 329 -330
0.07/0.09	v  331 -332 333 334 -335 -336 337 338 -339 340
0.07/0.09	v  341 342 343 344 345 -346 347 -348 -349 -350
0.07/0.09	v  351 -352 353 -354 355 -356 357 358 359 -360
0.07/0.09	v  -361 -362 363 -364 -365 366 -367 368 369 370
0.07/0.09	v  371 -372 373 374 375 -376 377 378 379 380
0.07/0.09	v  381 382 383 384 385 -386 387 -388 -389 390
0.07/0.09	v  -391 392 -393 394 -395 396 397 398 399 -400
0.07/0.09	v  -401 -402 -403 -404 -405 406 407 408 -409 -410
0.07/0.09	v  411 412 -413 -414 415 416 417 418 -419 420
0.07/0.09	v  421 422 423 -424 425 -426 427 -428 429 430
0.07/0.09	v  431 -432 -433 434 435 -436 437 -438 -439 -440
0.07/0.09	v  441 442 -443 444 -445 -446 447 448 -449 450
0.07/0.09	v  451 452 453 -454 455 456 -457 458 459 -460
0.07/0.09	v  461 462 -463 464 465 466 467 -468 -469 -470
0.07/0.09	v  -471 -472 -473 474 -475 -476 477 478 479 -480
0.07/0.09	v  481 482 -483 -484 485 -486 -487 488 -489 490
0.07/0.09	v  491 -492 -493 494 -495 -496 -497 498 -499 -500
0.07/0.09	v  -501 -502 -503 504 505 -506 507 508 -509 -510
0.07/0.09	v  -511 -512 513 514 515 -516 -517 -518 -519 520
0.07/0.09	v  -521 522 -523 524 525 -526 527 -528 -529 -530
0.07/0.09	v  -531 532 533 -534 -535 536 -537 538 -539 -540
0.07/0.09	v  -541 542 543 544 545 546 -547 548 -549 550
0.07/0.09	v  551 552 553 554 -555 -556 557 558 559 -560
0.07/0.09	v  561 562 -563 564 565 -566 567 -568 569 570
0.07/0.09	v  -571 572 -573 574 -575 576 577 578 -579 -580
0.07/0.09	v  -581 582 583 -584 585 586 587 588 -589 590
0.07/0.09	v  591 592 -593 594 -595 -596 597 -598 599 600
0.07/0.09	v  0
0.07/0.09	c SearchSteps = 183642
0.07/0.09	c SolveTime = 0.09

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-3221395-1303291848/watcher-3221395-1303291848 -o /tmp/evaluation-result-3221395-1303291848/solver-3221395-1303291848 -C 5000 -W 5000 -M 15500 sparrow2011 HOME/instance-3221395-1303291848.cnf 105695127 

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): 5000 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: 6.78 7.79 7.93 2/177 28493
/proc/meminfo: memFree=16882728/32951124 swapFree=67111528/67111528
[pid=28493] ppid=28491 vsize=12228 CPUtime=0 cores=1,3,5,7
/proc/28493/stat : 28493 (sparrow2011) R 28491 28493 28455 0 -1 4202496 431 0 0 0 0 0 0 0 21 0 1 0 421600147 12521472 371 33554432000 4194304 4568220 140733794721616 18446744073709551615 4239720 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28493/statm: 3057 371 173 92 0 1441 0

[startup+0.0795761 s]
/proc/loadavg: 6.78 7.79 7.93 2/177 28493
/proc/meminfo: memFree=16882728/32951124 swapFree=67111528/67111528
[pid=28493] ppid=28491 vsize=12228 CPUtime=0.07 cores=1,3,5,7
/proc/28493/stat : 28493 (sparrow2011) R 28491 28493 28455 0 -1 4202496 431 0 0 0 7 0 0 0 21 0 1 0 421600147 12521472 371 33554432000 4194304 4568220 140733794721616 18446744073709551615 4239286 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28493/statm: 3057 371 173 92 0 1441 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 12228

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

[startup+0.0795761 s]
/proc/loadavg: 6.78 7.79 7.93 2/177 28493
/proc/meminfo: memFree=16882728/32951124 swapFree=67111528/67111528
[pid=28493] ppid=28491 vsize=12228 CPUtime=0.07 cores=1,3,5,7
/proc/28493/stat : 28493 (sparrow2011) R 28491 28493 28455 0 -1 4202496 431 0 0 0 7 0 0 0 21 0 1 0 421600147 12521472 371 33554432000 4194304 4568220 140733794721616 18446744073709551615 4239286 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28493/statm: 3057 371 173 92 0 1441 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 12228

Child status: 10
Real time (s): 0.0958791
CPU time (s): 0.095984
CPU user time (s): 0.093985
CPU system time (s): 0.001999
CPU usage (%): 100.109
Max. virtual memory (cumulated for all children) (KiB): 12228

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.093985
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= 449
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 0.004999 second system time

The end

Launcher Data 

Begin job on node140 at 2011-04-20 11:30:48
IDJOB=3221395
IDBENCH=82916
IDSOLVER=1636
FILE ID=node140/3221395-1303291848
RUNJOBID= node140-1303291848-28474
PBS_JOBID= 13049626
Free space on /tmp= 72132 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v600-c2556-S252359291-002.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3221395-1303291848/watcher-3221395-1303291848 -o /tmp/evaluation-result-3221395-1303291848/solver-3221395-1303291848 -C 5000 -W 5000 -M 15500  sparrow2011 HOME/instance-3221395-1303291848.cnf 105695127

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

MD5SUM BENCH= e7d056c40976f07c31ebd30dc9590b89
RANDOM SEED=105695127

node140.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		: 2666.833
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	: 5333.66
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		: 2666.833
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	: 5226.14
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		: 2666.833
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		: 2666.833
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		: 2666.833
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		: 2666.833
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		: 2666.833
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		: 2666.833
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:      16882992 kB
Buffers:        782880 kB
Cached:       14856724 kB
SwapCached:          0 kB
Active:        8439316 kB
Inactive:      7264720 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      16882992 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             832 kB
Writeback:           0 kB
AnonPages:       64780 kB
Mapped:          14708 kB
Slab:           298732 kB
PageTables:       5016 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   210884 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= 72132 MiB
End job on node140 at 2011-04-20 11:30:48