Trace number 3264347

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
shortsattime+ 2011-03-02SAT 0.477926 0.478966

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 benchmark0.070989
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 

0.39/0.47	c 86 clauses are redundant and removed
0.39/0.47	c 0 vars are fixed and 86 clauses are removed after unit propagation
0.39/0.47	c 0 vars are fixed and 86 clauses are removed after lookahead
0.39/0.47	c initial seed is 1955714654
0.39/0.47	c try=1 flip j=852260 walk=759994 seed 1955714671
0.39/0.47	c A solution is found
0.39/0.47	s SATISFIABLE
0.39/0.47	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 
0.39/0.47	v 0 
0.39/0.47	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: 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-3264347-1303571113/watcher-3264347-1303571113 -o /tmp/evaluation-result-3264347-1303571113/solver-3264347-1303571113 -C 2400 -W 1300 -M 7680 shortsattime+ HOME/instance-3264347-1303571113.cnf 1955714427 

running on 2 cores: 5,7

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: 1.10 2.22 3.29 5/189 8919
/proc/meminfo: memFree=13620960/32951124 swapFree=67111528/67111528
[pid=8919] ppid=8917 vsize=881420 CPUtime=0 cores=5,7
/proc/8919/stat : 8919 (shortsattime+) R 8917 8919 8436 0 -1 4202496 411 0 0 0 0 0 0 0 19 0 1 0 449527601 902574080 355 33554432000 4194304 4228340 140735160978208 18446744073709551615 4206597 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8919/statm: 220355 355 104 9 0 217512 0

[startup+0.0195081 s]
/proc/loadavg: 1.10 2.22 3.29 5/189 8919
/proc/meminfo: memFree=13620960/32951124 swapFree=67111528/67111528
[pid=8919] ppid=8917 vsize=881424 CPUtime=0.01 cores=5,7
/proc/8919/stat : 8919 (shortsattime+) R 8917 8919 8436 0 -1 4202496 494 0 0 0 1 0 0 0 19 0 1 0 449527601 902578176 437 33554432000 4194304 4228340 140735160978208 18446744073709551615 4218846 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8919/statm: 220356 437 116 9 0 217513 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 881424

[startup+0.10048 s]
/proc/loadavg: 1.10 2.22 3.29 5/189 8919
/proc/meminfo: memFree=13620960/32951124 swapFree=67111528/67111528
[pid=8919] ppid=8917 vsize=881424 CPUtime=0.09 cores=5,7
/proc/8919/stat : 8919 (shortsattime+) R 8917 8919 8436 0 -1 4202496 494 0 0 0 9 0 0 0 19 0 1 0 449527601 902578176 437 33554432000 4194304 4228340 140735160978208 18446744073709551615 4217315 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8919/statm: 220356 437 116 9 0 217513 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 881424

[startup+0.300445 s]
/proc/loadavg: 1.10 2.22 3.29 5/189 8919
/proc/meminfo: memFree=13620960/32951124 swapFree=67111528/67111528
[pid=8919] ppid=8917 vsize=881424 CPUtime=0.29 cores=5,7
/proc/8919/stat : 8919 (shortsattime+) R 8917 8919 8436 0 -1 4202496 494 0 0 0 29 0 0 0 20 0 1 0 449527601 902578176 437 33554432000 4194304 4228340 140735160978208 18446744073709551615 4218663 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8919/statm: 220356 437 116 9 0 217513 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 881424

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

[startup+0.400428 s]
/proc/loadavg: 1.10 2.22 3.29 5/189 8919
/proc/meminfo: memFree=13620960/32951124 swapFree=67111528/67111528
[pid=8919] ppid=8917 vsize=881424 CPUtime=0.39 cores=5,7
/proc/8919/stat : 8919 (shortsattime+) R 8917 8919 8436 0 -1 4202496 494 0 0 0 39 0 0 0 20 0 1 0 449527601 902578176 437 33554432000 4194304 4228340 140735160978208 18446744073709551615 4218863 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8919/statm: 220356 437 116 9 0 217513 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 881424

Child status: 10
Real time (s): 0.478966
CPU time (s): 0.477926
CPU user time (s): 0.475927
CPU system time (s): 0.001999
CPU usage (%): 99.7828
Max. virtual memory (cumulated for all children) (KiB): 881424

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.475927
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= 498
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 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node146 at 2011-04-23 17:05:13
IDJOB=3264347
IDBENCH=84580
IDSOLVER=1578
FILE ID=node146/3264347-1303571113
RUNJOBID= node146-1303571113-8826
PBS_JOBID= 13150293
Free space on /tmp= 72448 MiB

SOLVER NAME= shortsattime+ 2011-03-02
BENCH NAME= SAT04/handmade/anton/l4k4/lksat-n900-m6174-k4-l4-s819398222.used-as.sat04-929.cnf
COMMAND LINE= shortsattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3264347-1303571113/watcher-3264347-1303571113 -o /tmp/evaluation-result-3264347-1303571113/solver-3264347-1303571113 -C 2400 -W 1300 -M 7680  shortsattime+ HOME/instance-3264347-1303571113.cnf 1955714427

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

MD5SUM BENCH= 82170fa4021e7a6c932a31c197f0f64c
RANDOM SEED=1955714427

node146.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	: 5332.75
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		: 2666.830
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	: 5332.86
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	: 5332.75
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		: 2666.830
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	: 5332.75
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		: 2666.830
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	: 5332.75
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		: 2666.830
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      13621116 kB
Buffers:       2067856 kB
Cached:       16627364 kB
SwapCached:          0 kB
Active:        9695100 kB
Inactive:      9105048 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      13621116 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           34936 kB
Writeback:           0 kB
AnonPages:      103908 kB
Mapped:          15268 kB
Slab:           467496 kB
PageTables:       4716 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  2907396 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= 72440 MiB
End job on node146 at 2011-04-23 17:05:14