Trace number 3157021

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
shortsattime2011 2011-03-02SAT 0.448931 0.450345

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v800-c3408-S1631205309-024.SATISFIABLE.cnf
MD5SUM2e95b09b89f7d260e53f8f199a98d276
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05799
Satisfiable
(Un)Satisfiability was proved
Number of variables800
Number of clauses3408
Sum of the clauses size10224
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 33408
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.39/0.45	c 0 clauses are redundant and removed
0.39/0.45	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.39/0.45	c 0 vars are fixed and 0 clauses are removed after lookahead
0.39/0.45	c initial seed is 506637607
0.39/0.45	c try=1 flip j=882505 walk=778903 seed 506637624
0.39/0.45	c A solution is found
0.39/0.45	s SATISFIABLE
0.39/0.45	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 -750 751 -752 753 -754 -755 -756 -757 -758 759 760 -761 -762 763 -764 765 -766 767 768 -769 770 771 772 773 774 775 -776 777 778 -779 780 781 -782 783 -784 785 786 -787 -788 789 790 -791 -792 793 -794 -795 -796 797 -798 799 -800 
0.39/0.45	v 0 
0.39/0.45	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

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-3157021-1301680916/watcher-3157021-1301680916 -o /tmp/evaluation-result-3157021-1301680916/solver-3157021-1301680916 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157021-1301680916.cnf 506630820 

running on 2 cores: 0,2

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: 4.02 4.01 3.78 5/187 7750
/proc/meminfo: memFree=21172872/32951132 swapFree=67111528/67111528
[pid=7750] ppid=7748 vsize=1185716 CPUtime=0 cores=0,2
/proc/7750/stat : 7750 (shortsattime201) R 7748 7750 7195 0 -1 4202496 334 0 0 0 0 0 0 0 25 0 1 0 279690239 1214173184 275 33554432000 4194304 4230460 140736039658304 18446744073709551615 4206189 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/7750/statm: 296429 275 115 9 0 293586 0

[startup+0.0348051 s]
/proc/loadavg: 4.02 4.01 3.78 5/187 7750
/proc/meminfo: memFree=21172872/32951132 swapFree=67111528/67111528
[pid=7750] ppid=7748 vsize=1185980 CPUtime=0.03 cores=0,2
/proc/7750/stat : 7750 (shortsattime201) R 7748 7750 7195 0 -1 4202496 450 0 0 0 3 0 0 0 25 0 1 0 279690239 1214443520 390 33554432000 4194304 4230460 140736039658304 18446744073709551615 242969950806 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/7750/statm: 296495 390 117 9 0 293652 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1185980

[startup+0.100794 s]
/proc/loadavg: 4.02 4.01 3.78 5/187 7750
/proc/meminfo: memFree=21172872/32951132 swapFree=67111528/67111528
[pid=7750] ppid=7748 vsize=1185980 CPUtime=0.09 cores=0,2
/proc/7750/stat : 7750 (shortsattime201) R 7748 7750 7195 0 -1 4202496 450 0 0 0 9 0 0 0 25 0 1 0 279690239 1214443520 390 33554432000 4194304 4230460 140736039658304 18446744073709551615 4221713 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/7750/statm: 296495 390 117 9 0 293652 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185980

[startup+0.300739 s]
/proc/loadavg: 4.02 4.01 3.78 5/187 7750
/proc/meminfo: memFree=21172872/32951132 swapFree=67111528/67111528
[pid=7750] ppid=7748 vsize=1185980 CPUtime=0.29 cores=0,2
/proc/7750/stat : 7750 (shortsattime201) R 7748 7750 7195 0 -1 4202496 450 0 0 0 29 0 0 0 25 0 1 0 279690239 1214443520 390 33554432000 4194304 4230460 140736039658304 18446744073709551615 4199918 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/7750/statm: 296495 390 117 9 0 293652 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1185980

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

[startup+0.400716 s]
/proc/loadavg: 4.02 4.01 3.78 5/187 7750
/proc/meminfo: memFree=21172872/32951132 swapFree=67111528/67111528
[pid=7750] ppid=7748 vsize=1185980 CPUtime=0.39 cores=0,2
/proc/7750/stat : 7750 (shortsattime201) R 7748 7750 7195 0 -1 4202496 450 0 0 0 39 0 0 0 25 0 1 0 279690239 1214443520 390 33554432000 4194304 4230460 140736039658304 18446744073709551615 4224344 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/7750/statm: 296495 390 117 9 0 293652 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 1185980

Child status: 10
Real time (s): 0.450345
CPU time (s): 0.448931
CPU user time (s): 0.448931
CPU system time (s): 0
CPU usage (%): 99.686
Max. virtual memory (cumulated for all children) (KiB): 1185980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.448931
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= 454
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= 3

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node128 at 2011-04-01 20:01:56
IDJOB=3157021
IDBENCH=82736
IDSOLVER=1566
FILE ID=node128/3157021-1301680916
RUNJOBID= node128-1301678137-7214
PBS_JOBID= 12840569
Free space on /tmp= 70968 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v800-c3408-S1631205309-024.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157021-1301680916/watcher-3157021-1301680916 -o /tmp/evaluation-result-3157021-1301680916/solver-3157021-1301680916 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157021-1301680916.cnf 506630820

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

MD5SUM BENCH= 2e95b09b89f7d260e53f8f199a98d276
RANDOM SEED=506630820

node128.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		: 2666.852
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	: 5333.70
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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	: 5434.49
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      21173152 kB
Buffers:        332824 kB
Cached:       11093576 kB
SwapCached:          0 kB
Active:        7930804 kB
Inactive:      3573512 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      21173152 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7968 kB
Writeback:           0 kB
AnonPages:       78032 kB
Mapped:          15648 kB
Slab:           211668 kB
PageTables:       5888 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:  3805524 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 70960 MiB
End job on node128 at 2011-04-01 20:01:56