Trace number 3427291

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
sattime 2011-03-02SAT 0.170973 0.17076

General information on the benchmark

NameSAT04/handmade/anton/l4k4/
lksat-n900-m6174-k4-l4-s819398222.used-as.sat04-929.cnf
MD5SUM82170fa4021e7a6c932a31c197f0f64c
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.107983
Satisfiable
(Un)Satisfiability was proved
Number of variables880
Number of clauses6174
Sum of the clauses size24696
Maximum clause length4
Minimum clause length4
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 46174
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.09/0.17	c 86 clauses are redundant and removed
0.09/0.17	c 0 vars are fixed and 86 clauses are removed after unit propagation
0.09/0.17	c 0 vars are fixed and 86 clauses are removed after lookahead
0.09/0.17	c initial seed is 639022668
0.09/0.17	c try=1 flip j=246661 walk=217860 seed 639022685
0.09/0.17	c A solution is found
0.09/0.17	s SATISFIABLE
0.09/0.17	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 -801 802 -803 -804 -805 806 -807 -808 -809 810 811 -812 -813 814 -815 816 -817 818 819 -820 -821 -822 -823 -824 -825 -826 827 -828 829 830 -831 832 -833 834 835 836 -837 838 839 840 -841 -842 -843 -844 -845 846 847 -848 849 850 -851 852 -853 -854 -855 -856 857 858 -859 860 861 -862 863 864 865 -866 867 -868 -869 870 871 872 873 -874 -875 876 -877 878 879 880 
0.09/0.17	v 0 
0.09/0.17	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-3427291-1306775963/watcher-3427291-1306775963 -o /tmp/evaluation-result-3427291-1306775963/solver-3427291-1306775963 -C 5000 -W 5100 -M 15500 sattime HOME/instance-3427291-1306775963.cnf 639022668 

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: 1.08 1.55 1.82 2/322 32688
/proc/meminfo: memFree=4810192/32951124 swapFree=67079492/67111528
[pid=32688] ppid=32686 vsize=990796 CPUtime=0.01 cores=1,3,5,7
/proc/32688/stat : 32688 (sattime) R 32686 32688 31898 0 -1 4202496 410 0 0 0 1 0 0 0 25 0 1 0 867826849 1014575104 355 33554432000 4194304 4228548 140734944075248 18446744073709551615 4207180 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/32688/statm: 247699 355 104 9 0 244856 0

[startup+0.0306371 s]
/proc/loadavg: 1.08 1.55 1.82 2/322 32688
/proc/meminfo: memFree=4810192/32951124 swapFree=67079492/67111528
[pid=32688] ppid=32686 vsize=991064 CPUtime=0.02 cores=1,3,5,7
/proc/32688/stat : 32688 (sattime) R 32686 32688 31898 0 -1 4202496 560 0 0 0 2 0 0 0 25 0 1 0 867826849 1014849536 504 33554432000 4194304 4228548 140734944075248 18446744073709551615 4217511 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/32688/statm: 247766 504 116 9 0 244923 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 991064

[startup+0.100615 s]
/proc/loadavg: 1.08 1.55 1.82 2/322 32688
/proc/meminfo: memFree=4810192/32951124 swapFree=67079492/67111528
[pid=32688] ppid=32686 vsize=991064 CPUtime=0.09 cores=1,3,5,7
/proc/32688/stat : 32688 (sattime) R 32686 32688 31898 0 -1 4202496 560 0 0 0 9 0 0 0 25 0 1 0 867826849 1014849536 504 33554432000 4194304 4228548 140734944075248 18446744073709551615 4218260 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/32688/statm: 247766 504 116 9 0 244923 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 991064

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

Child status: 10
Real time (s): 0.17076
CPU time (s): 0.170973
CPU user time (s): 0.168974
CPU system time (s): 0.001999
CPU usage (%): 100.125
Max. virtual memory (cumulated for all children) (KiB): 991064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.168974
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= 565
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 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node110 at 2011-05-30 19:19:23
IDJOB=3427291
IDBENCH=84580
IDSOLVER=1923
FILE ID=node110/3427291-1306775963
RUNJOBID= node110-1306775962-32620
PBS_JOBID= 13475014
Free space on /tmp= 58580 MiB

SOLVER NAME= sattime 2011-03-02
BENCH NAME= SAT04/handmade/anton/l4k4/lksat-n900-m6174-k4-l4-s819398222.used-as.sat04-929.cnf
COMMAND LINE= sattime BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3427291-1306775963/watcher-3427291-1306775963 -o /tmp/evaluation-result-3427291-1306775963/solver-3427291-1306775963 -C 5000 -W 5100 -M 15500  sattime HOME/instance-3427291-1306775963.cnf 639022668

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

MD5SUM BENCH= 82170fa4021e7a6c932a31c197f0f64c
RANDOM SEED=639022668

node110.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		: 2666.830
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		: 2666.830
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	: 5332.83
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		: 2666.830
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		: 2666.830
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	: 5332.83
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		: 2666.830
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	: 5332.76
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		: 2666.830
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	: 5332.83
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		: 2666.830
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		: 2666.830
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:     32951124 kB
MemFree:       4810472 kB
Buffers:        327052 kB
Cached:       23519332 kB
SwapCached:       3064 kB
Active:       19889276 kB
Inactive:      7579432 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       4810472 kB
SwapTotal:    67111528 kB
SwapFree:     67079492 kB
Dirty:           15752 kB
Writeback:          40 kB
AnonPages:     3620080 kB
Mapped:          27424 kB
Slab:           582180 kB
PageTables:      27200 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 75583564 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= 58564 MiB
End job on node110 at 2011-05-30 19:19:23