Trace number 3264344

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 0.486925 0.489279

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 

0.39/0.48	c 86 clauses are redundant and removed
0.39/0.48	c 0 vars are fixed and 86 clauses are removed after unit propagation
0.39/0.48	c 0 vars are fixed and 86 clauses are removed after lookahead
0.39/0.48	c initial seed is 915005100
0.39/0.48	c try=1 flip j=706559 walk=628897 seed 915005117
0.39/0.48	c A solution is found
0.39/0.48	s SATISFIABLE
0.39/0.48	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 
0.39/0.48	v 0 
0.39/0.48	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-3264344-1303569321/watcher-3264344-1303569321 -o /tmp/evaluation-result-3264344-1303569321/solver-3264344-1303569321 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3264344-1303569321.cnf 914998313 

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: 3.88 3.95 3.91 4/187 6241
/proc/meminfo: memFree=14489148/32950928 swapFree=67087032/67111528
[pid=6241] ppid=6239 vsize=1185584 CPUtime=0 cores=0,2
/proc/6241/stat : 6241 (shortsattime201) R 6239 6241 5983 0 -1 4194304 245 0 0 0 0 0 0 0 25 0 1 0 468529172 1214038016 189 33554432000 4194304 4230460 140737084383904 18446744073709551615 239476355781 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/6241/statm: 296396 190 100 9 0 293553 0

[startup+0.00869801 s]
/proc/loadavg: 3.88 3.95 3.91 4/187 6241
/proc/meminfo: memFree=14489148/32950928 swapFree=67087032/67111528
[pid=6241] ppid=6239 vsize=1186108 CPUtime=0 cores=0,2
/proc/6241/stat : 6241 (shortsattime201) R 6239 6241 5983 0 -1 4202496 411 0 0 0 0 0 0 0 25 0 1 0 468529172 1214574592 354 33554432000 4194304 4230460 140737084383904 18446744073709551615 4207769 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/6241/statm: 296527 354 103 9 0 293684 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1186108

[startup+0.100732 s]
/proc/loadavg: 3.88 3.95 3.91 4/187 6241
/proc/meminfo: memFree=14489148/32950928 swapFree=67087032/67111528
[pid=6241] ppid=6239 vsize=1186376 CPUtime=0.09 cores=0,2
/proc/6241/stat : 6241 (shortsattime201) R 6239 6241 5983 0 -1 4202496 585 0 0 0 9 0 0 0 25 0 1 0 468529172 1214849024 527 33554432000 4194304 4230460 140737084383904 18446744073709551615 4219960 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/6241/statm: 296594 527 117 9 0 293751 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1186376

[startup+0.300693 s]
/proc/loadavg: 3.88 3.95 3.91 4/187 6241
/proc/meminfo: memFree=14489148/32950928 swapFree=67087032/67111528
[pid=6241] ppid=6239 vsize=1186376 CPUtime=0.29 cores=0,2
/proc/6241/stat : 6241 (shortsattime201) R 6239 6241 5983 0 -1 4202496 585 0 0 0 29 0 0 0 25 0 1 0 468529172 1214849024 527 33554432000 4194304 4230460 140737084383904 18446744073709551615 4223171 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/6241/statm: 296594 527 117 9 0 293751 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1186376

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

[startup+0.400668 s]
/proc/loadavg: 3.88 3.95 3.91 4/187 6241
/proc/meminfo: memFree=14489148/32950928 swapFree=67087032/67111528
[pid=6241] ppid=6239 vsize=1186376 CPUtime=0.39 cores=0,2
/proc/6241/stat : 6241 (shortsattime201) R 6239 6241 5983 0 -1 4202496 585 0 0 0 39 0 0 0 25 0 1 0 468529172 1214849024 527 33554432000 4194304 4230460 140737084383904 18446744073709551615 4220539 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/6241/statm: 296594 527 117 9 0 293751 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 1186376

Child status: 10
Real time (s): 0.489279
CPU time (s): 0.486925
CPU user time (s): 0.486925
CPU system time (s): 0
CPU usage (%): 99.5189
Max. virtual memory (cumulated for all children) (KiB): 1186376

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.486925
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= 589
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= 13

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node148 at 2011-04-23 16:35:21
IDJOB=3264344
IDBENCH=84580
IDSOLVER=1566
FILE ID=node148/3264344-1303569321
RUNJOBID= node148-1303568019-6001
PBS_JOBID= 13150285
Free space on /tmp= 70572 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT04/handmade/anton/l4k4/lksat-n900-m6174-k4-l4-s819398222.used-as.sat04-929.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3264344-1303569321/watcher-3264344-1303569321 -o /tmp/evaluation-result-3264344-1303569321/solver-3264344-1303569321 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3264344-1303569321.cnf 914998313

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

MD5SUM BENCH= 82170fa4021e7a6c932a31c197f0f64c
RANDOM SEED=914998313

node148.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		: 2666.854
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		: 2666.854
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		: 2666.854
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	: 5332.83
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		: 2666.854
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		: 2666.854
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		: 2666.854
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		: 2666.854
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		: 2666.854
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      14489428 kB
Buffers:       2043984 kB
Cached:       15761936 kB
SwapCached:       5264 kB
Active:        8949112 kB
Inactive:      8953664 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      14489428 kB
SwapTotal:    67111528 kB
SwapFree:     67087032 kB
Dirty:           15564 kB
Writeback:           0 kB
AnonPages:       92844 kB
Mapped:          14160 kB
Slab:           494080 kB
PageTables:       5596 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  2646120 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= 70564 MiB
End job on node148 at 2011-04-23 16:35:22