Trace number 3426807

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 0.757884 0.758268

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v750-c3195-S1378008329-078.SATISFIABLE.cnf
MD5SUMd50cd6e15bea1958cfdf9785772f4ad7
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.032994
Satisfiable
(Un)Satisfiability was proved
Number of variables750
Number of clauses3195
Sum of the clauses size9585
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 33195
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.70/0.75	c 0 clauses are redundant and removed
0.70/0.75	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.70/0.75	c 0 vars are fixed and 0 clauses are removed after lookahead
0.70/0.75	c initial seed is 1813848702
0.70/0.75	c try=1 flip j=1596066 walk=1396892 seed 1813848719
0.70/0.75	c A solution is found
0.70/0.75	s SATISFIABLE
0.70/0.75	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 -651 -652 653 654 655 656 -657 -658 -659 660 661 -662 663 -664 665 -666 667 -668 -669 670 671 -672 673 -674 -675 -676 -677 -678 -679 -680 -681 682 683 -684 -685 -686 687 -688 -689 690 -691 -692 -693 -694 -695 696 -697 698 699 700 -701 702 703 -704 705 -706 -707 -708 709 710 -711 -712 713 714 715 716 -717 718 -719 720 721 -722 -723 -724 -725 -726 -727 -728 729 730 731 732 -733 734 735 736 737 -738 -739 740 741 -742 -743 -744 745 746 747 748 749 750 
0.70/0.75	v 0 
0.70/0.75	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-3426807-1306772682/watcher-3426807-1306772682 -o /tmp/evaluation-result-3426807-1306772682/solver-3426807-1306772682 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426807-1306772682.cnf 1813845245 

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: 2.10 2.04 2.01 2/464 10452
/proc/meminfo: memFree=4895532/32950928 swapFree=52646428/67111528
[pid=10452] ppid=10450 vsize=1185980 CPUtime=0 cores=1,3,5,7
/proc/10452/stat : 10452 (sattime2011) R 10450 10452 9836 0 -1 4202496 436 0 0 0 0 0 0 0 25 0 1 0 788867957 1214443520 379 33554432000 4194304 4230460 140735756791424 18446744073709551615 4219829 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/10452/statm: 296495 379 117 9 0 293652 0

[startup+0.0420889 s]
/proc/loadavg: 2.10 2.04 2.01 2/464 10452
/proc/meminfo: memFree=4895532/32950928 swapFree=52646428/67111528
[pid=10452] ppid=10450 vsize=1185980 CPUtime=0.04 cores=1,3,5,7
/proc/10452/stat : 10452 (sattime2011) R 10450 10452 9836 0 -1 4202496 436 0 0 0 4 0 0 0 25 0 1 0 788867957 1214443520 379 33554432000 4194304 4230460 140735756791424 18446744073709551615 4200317 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/10452/statm: 296495 379 117 9 0 293652 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1185980

[startup+0.101078 s]
/proc/loadavg: 2.10 2.04 2.01 2/464 10452
/proc/meminfo: memFree=4895532/32950928 swapFree=52646428/67111528
[pid=10452] ppid=10450 vsize=1185980 CPUtime=0.1 cores=1,3,5,7
/proc/10452/stat : 10452 (sattime2011) R 10450 10452 9836 0 -1 4202496 436 0 0 0 10 0 0 0 25 0 1 0 788867957 1214443520 379 33554432000 4194304 4230460 140735756791424 18446744073709551615 4221456 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/10452/statm: 296495 379 117 9 0 293652 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1185980

[startup+0.301044 s]
/proc/loadavg: 2.10 2.04 2.01 2/464 10452
/proc/meminfo: memFree=4895532/32950928 swapFree=52646428/67111528
[pid=10452] ppid=10450 vsize=1185980 CPUtime=0.3 cores=1,3,5,7
/proc/10452/stat : 10452 (sattime2011) R 10450 10452 9836 0 -1 4202496 436 0 0 0 30 0 0 0 25 0 1 0 788867957 1214443520 379 33554432000 4194304 4230460 140735756791424 18446744073709551615 4199682 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/10452/statm: 296495 379 117 9 0 293652 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1185980

[startup+0.700972 s]
/proc/loadavg: 2.10 2.04 2.01 2/464 10452
/proc/meminfo: memFree=4895532/32950928 swapFree=52646428/67111528
[pid=10452] ppid=10450 vsize=1185980 CPUtime=0.7 cores=1,3,5,7
/proc/10452/stat : 10452 (sattime2011) R 10450 10452 9836 0 -1 4202496 436 0 0 0 70 0 0 0 25 0 1 0 788867957 1214443520 379 33554432000 4194304 4230460 140735756791424 18446744073709551615 4219533 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/10452/statm: 296495 379 117 9 0 293652 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1185980

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

Child status: 10
Real time (s): 0.758268
CPU time (s): 0.757884
CPU user time (s): 0.757884
CPU system time (s): 0
CPU usage (%): 99.9494
Max. virtual memory (cumulated for all children) (KiB): 1185980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.757884
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= 440
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 0.002999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node123 at 2011-05-30 18:24:42
IDJOB=3426807
IDBENCH=82779
IDSOLVER=1924
FILE ID=node123/3426807-1306772682
RUNJOBID= node123-1306761771-9855
PBS_JOBID= 13475001
Free space on /tmp= 56928 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v750-c3195-S1378008329-078.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426807-1306772682/watcher-3426807-1306772682 -o /tmp/evaluation-result-3426807-1306772682/solver-3426807-1306772682 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426807-1306772682.cnf 1813845245

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

MD5SUM BENCH= d50cd6e15bea1958cfdf9785772f4ad7
RANDOM SEED=1813845245

node123.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		: 2666.838
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		: 2666.838
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	: 5226.15
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		: 2666.838
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		: 2666.838
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	: 5332.82
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		: 2666.838
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	: 5332.74
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		: 2666.838
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	: 5332.80
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		: 2666.838
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	: 5332.74
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		: 2666.838
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:       4895688 kB
Buffers:        297512 kB
Cached:       18066800 kB
SwapCached:      15844 kB
Active:       11839612 kB
Inactive:     15508364 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       4895688 kB
SwapTotal:    67111528 kB
SwapFree:     52646428 kB
Dirty:            7772 kB
Writeback:           0 kB
AnonPages:     8975296 kB
Mapped:          29700 kB
Slab:           560940 kB
PageTables:      78028 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 134553728 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= 56920 MiB
End job on node123 at 2011-05-30 18:24:42