Trace number 3426881

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 0.6519 0.652423

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v650-c2769-S1920526651-049.SATISFIABLE.cnf
MD5SUM5df52ad002b8e310753df40806d6b835
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.006998
Satisfiable
(Un)Satisfiability was proved
Number of variables650
Number of clauses2769
Sum of the clauses size8307
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32769
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.59/0.65	c 0 clauses are redundant and removed
0.59/0.65	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.59/0.65	c 0 vars are fixed and 0 clauses are removed after lookahead
0.59/0.65	c initial seed is 1641824238
0.59/0.65	c try=1 flip j=1395422 walk=1215803 seed 1641824255
0.59/0.65	c A solution is found
0.59/0.65	s SATISFIABLE
0.59/0.65	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 -598 599 600 601 -602 603 -604 -605 -606 607 -608 -609 610 -611 612 -613 -614 615 616 -617 -618 -619 620 -621 -622 -623 -624 -625 -626 627 -628 -629 -630 -631 -632 -633 634 -635 636 637 -638 -639 640 -641 642 -643 -644 645 -646 647 -648 -649 -650 
0.59/0.65	v 0 
0.59/0.65	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-3426881-1306777131/watcher-3426881-1306777131 -o /tmp/evaluation-result-3426881-1306777131/solver-3426881-1306777131 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426881-1306777131.cnf 1641820781 

running on 4 cores: 0,2,4,6

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: 0.94 1.30 1.67 3/559 5577
/proc/meminfo: memFree=7082580/32950928 swapFree=41934332/67111528
[pid=5575] ppid=5572 vsize=1185848 CPUtime=0.06 cores=0,2,4,6
/proc/5575/stat : 5575 (sattime2011) R 5572 5575 4777 0 -1 4202496 408 0 0 0 6 0 0 0 18 0 1 0 789311774 1214308352 351 33554432000 4194304 4230460 140735931406768 18446744073709551615 4219843 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/5575/statm: 296462 351 117 9 0 293619 0

[startup+0.162937 s]
/proc/loadavg: 0.94 1.30 1.67 3/559 5577
/proc/meminfo: memFree=7082580/32950928 swapFree=41934332/67111528
[pid=5575] ppid=5572 vsize=1185848 CPUtime=0.16 cores=0,2,4,6
/proc/5575/stat : 5575 (sattime2011) R 5572 5575 4777 0 -1 4202496 408 0 0 0 16 0 0 0 18 0 1 0 789311774 1214308352 351 33554432000 4194304 4230460 140735931406768 18446744073709551615 4221380 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/5575/statm: 296462 351 117 9 0 293619 0
Current children cumulated CPU time (s) 0.16
Current children cumulated vsize (KiB) 1185848

[startup+0.200931 s]
/proc/loadavg: 0.94 1.30 1.67 3/559 5577
/proc/meminfo: memFree=7082580/32950928 swapFree=41934332/67111528
[pid=5575] ppid=5572 vsize=1185848 CPUtime=0.19 cores=0,2,4,6
/proc/5575/stat : 5575 (sattime2011) R 5572 5575 4777 0 -1 4202496 408 0 0 0 19 0 0 0 18 0 1 0 789311774 1214308352 351 33554432000 4194304 4230460 140735931406768 18446744073709551615 4200482 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/5575/statm: 296462 351 117 9 0 293619 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 1185848

[startup+0.300912 s]
/proc/loadavg: 0.94 1.30 1.67 3/559 5577
/proc/meminfo: memFree=7082580/32950928 swapFree=41934332/67111528
[pid=5575] ppid=5572 vsize=1185848 CPUtime=0.29 cores=0,2,4,6
/proc/5575/stat : 5575 (sattime2011) R 5572 5575 4777 0 -1 4202496 408 0 0 0 29 0 0 0 18 0 1 0 789311774 1214308352 351 33554432000 4194304 4230460 140735931406768 18446744073709551615 4200471 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/5575/statm: 296462 351 117 9 0 293619 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1185848

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

[startup+0.40085 s]
/proc/loadavg: 0.94 1.30 1.67 3/559 5577
/proc/meminfo: memFree=7082580/32950928 swapFree=41934332/67111528
[pid=5575] ppid=5572 vsize=1185848 CPUtime=0.39 cores=0,2,4,6
/proc/5575/stat : 5575 (sattime2011) R 5572 5575 4777 0 -1 4202496 408 0 0 0 39 0 0 0 18 0 1 0 789311774 1214308352 351 33554432000 4194304 4230460 140735931406768 18446744073709551615 4200570 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/5575/statm: 296462 351 117 9 0 293619 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 1185848

[startup+0.600751 s]
/proc/loadavg: 0.94 1.30 1.67 3/559 5577
/proc/meminfo: memFree=7082580/32950928 swapFree=41934332/67111528
[pid=5575] ppid=5572 vsize=1185848 CPUtime=0.59 cores=0,2,4,6
/proc/5575/stat : 5575 (sattime2011) R 5572 5575 4777 0 -1 4202496 408 0 0 0 59 0 0 0 18 0 1 0 789311774 1214308352 351 33554432000 4194304 4230460 140735931406768 18446744073709551615 4217151 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/5575/statm: 296462 351 117 9 0 293619 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 1185848

Child status: 10
Real time (s): 0.652423
CPU time (s): 0.6519
CPU user time (s): 0.650901
CPU system time (s): 0.000999
CPU usage (%): 99.9198
Max. virtual memory (cumulated for all children) (KiB): 1185848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.650901
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 412
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= 24
involuntary context switches= 1

runsolver used 0.006998 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node126 at 2011-05-30 19:38:51
IDJOB=3426881
IDBENCH=82853
IDSOLVER=1924
FILE ID=node126/3426881-1306777131
RUNJOBID= node126-1306777131-5558
PBS_JOBID= 13474998
Free space on /tmp= 58348 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v650-c2769-S1920526651-049.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426881-1306777131/watcher-3426881-1306777131 -o /tmp/evaluation-result-3426881-1306777131/solver-3426881-1306777131 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426881-1306777131.cnf 1641820781

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

MD5SUM BENCH= 5df52ad002b8e310753df40806d6b835
RANDOM SEED=1641820781

node126.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		: 2666.783
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	: 5333.56
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		: 2666.783
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		: 2666.783
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		: 2666.783
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	: 5332.74
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		: 2666.783
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	: 5332.80
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		: 2666.783
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		: 2666.783
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		: 2666.783
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	: 5332.76
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:       7083140 kB
Buffers:        352604 kB
Cached:       22575964 kB
SwapCached:      49920 kB
Active:       19831640 kB
Inactive:      5292620 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       7083140 kB
SwapTotal:    67111528 kB
SwapFree:     41934332 kB
Dirty:           15524 kB
Writeback:           0 kB
AnonPages:     2158400 kB
Mapped:          24588 kB
Slab:           573384 kB
PageTables:      99704 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 176377508 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= 58332 MiB
End job on node126 at 2011-05-30 19:38:51