Trace number 309548

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, and are wall clock time (not CPU 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
saps 2007-02-08SAT 0.348946 0.348937

General information on the benchmark

Namerandom/2+p/p0.9/v810/
unif2p-p0.9-v810-c2932-S1557868591-12-SAT.cnf
MD5SUMf3dd554f0235253f67a0d81f3fcd0e26
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.021995
Satisfiable
(Un)Satisfiability was proved
Number of variables810
Number of clauses2931
Sum of the clauses size8500
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2293
Number of clauses of size 32638
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.30/0.34	c 
0.30/0.34	c UBCSAT version 1.1.0rr
0.30/0.34	c 
0.30/0.34	c http://www.satlib.org/ubcsat
0.30/0.34	c 
0.30/0.34	c ubcsat -h for help
0.30/0.34	c 
0.30/0.34	c  -runs 1 
0.30/0.34	c  -cutoff 4294967295 
0.30/0.34	c  -timeout 0.000000 
0.30/0.34	c  -gtimeout 0.000000 
0.30/0.34	c  -noimprove 0 
0.30/0.34	c  -target 0 
0.30/0.34	c  -wtarget 0.000000 
0.30/0.34	c  -seed 47607861 
0.30/0.34	c  -solve 0 
0.30/0.34	c  -find,-numsol 0 
0.30/0.34	c  -findunique 0 
0.30/0.34	c  -srestart 0 
0.30/0.34	c  -prestart 0.000000 
0.30/0.34	c  -drestart 0 
0.30/0.34	c 
0.30/0.34	c  -alpha 1.300000 
0.30/0.34	c  -rho 0.800000 
0.30/0.34	c  -ps 0.050000 
0.30/0.34	c  -wp 0.010000 
0.30/0.34	c  -sapsthresh -0.100000 
0.30/0.34	c 
0.30/0.34	s SATISFIABLE
0.30/0.34	v  1 2 3 -4 5 -6 7 8 9 10
0.30/0.34	v  11 -12 13 14 15 -16 -17 -18 19 20
0.30/0.34	v  -21 22 -23 24 25 26 27 -28 -29 -30
0.30/0.34	v  31 -32 -33 34 -35 36 37 38 39 -40
0.30/0.34	v  41 42 -43 44 -45 46 47 48 -49 50
0.30/0.34	v  -51 52 53 -54 -55 56 57 -58 -59 -60
0.30/0.34	v  61 62 63 64 -65 66 -67 -68 69 -70
0.30/0.34	v  71 -72 -73 -74 75 76 -77 -78 -79 80
0.30/0.34	v  81 -82 -83 84 -85 -86 87 -88 -89 90
0.30/0.34	v  -91 92 -93 -94 95 96 -97 -98 -99 100
0.30/0.34	v  101 -102 -103 104 105 -106 107 108 109 -110
0.30/0.34	v  111 112 -113 -114 115 116 117 -118 119 120
0.30/0.34	v  121 -122 123 -124 125 126 127 -128 129 130
0.30/0.34	v  131 132 -133 134 135 -136 137 -138 139 -140
0.30/0.34	v  -141 -142 143 144 -145 -146 147 -148 -149 -150
0.30/0.34	v  -151 -152 -153 154 155 -156 157 158 159 160
0.30/0.34	v  -161 -162 -163 -164 -165 166 -167 -168 -169 -170
0.30/0.34	v  171 172 173 -174 -175 -176 -177 178 179 -180
0.30/0.34	v  -181 -182 -183 -184 185 186 187 -188 -189 190
0.30/0.34	v  -191 -192 193 -194 -195 196 197 -198 199 -200
0.30/0.34	v  -201 -202 -203 204 -205 206 -207 -208 -209 -210
0.30/0.34	v  211 212 213 -214 -215 216 -217 218 219 -220
0.30/0.34	v  221 -222 -223 224 -225 -226 -227 -228 -229 -230
0.30/0.34	v  -231 232 -233 234 -235 236 -237 238 -239 240
0.30/0.34	v  241 242 -243 244 245 -246 -247 -248 249 -250
0.30/0.34	v  251 -252 -253 -254 -255 256 257 -258 -259 260
0.30/0.34	v  261 -262 -263 -264 -265 266 267 -268 269 270
0.30/0.34	v  -271 -272 273 -274 275 -276 -277 -278 279 -280
0.30/0.34	v  -281 -282 -283 -284 285 -286 -287 -288 289 290
0.30/0.34	v  -291 -292 -293 -294 295 296 297 -298 299 -300
0.30/0.34	v  -301 302 -303 -304 -305 306 -307 -308 309 310
0.30/0.34	v  311 -312 313 314 -315 -316 317 318 319 320
0.30/0.34	v  321 322 323 324 325 326 327 328 -329 -330
0.30/0.34	v  331 332 -333 -334 335 336 -337 -338 339 340
0.30/0.34	v  -341 -342 -343 344 -345 346 347 348 349 350
0.30/0.34	v  351 352 -353 354 -355 -356 357 -358 359 -360
0.30/0.34	v  361 -362 363 364 -365 -366 367 368 -369 -370
0.30/0.34	v  371 -372 -373 374 375 -376 377 378 379 380
0.30/0.34	v  -381 382 383 384 -385 -386 -387 -388 389 390
0.30/0.34	v  391 -392 -393 394 395 396 -397 -398 -399 -400
0.30/0.34	v  401 -402 -403 -404 405 -406 407 408 -409 410
0.30/0.34	v  -411 412 -413 414 415 -416 417 418 419 -420
0.30/0.34	v  -421 422 423 424 425 426 -427 -428 429 430
0.30/0.34	v  431 -432 433 -434 435 436 437 -438 -439 440
0.30/0.34	v  -441 442 -443 444 -445 446 -447 -448 449 -450
0.30/0.34	v  451 -452 -453 -454 455 456 457 -458 -459 460
0.30/0.34	v  -461 462 -463 -464 465 466 -467 468 469 470
0.30/0.34	v  471 -472 473 474 475 -476 477 -478 479 -480
0.30/0.34	v  481 -482 483 -484 -485 -486 -487 488 489 490
0.30/0.34	v  491 492 493 494 -495 496 497 498 -499 -500
0.30/0.34	v  501 -502 -503 -504 505 506 -507 -508 509 510
0.30/0.34	v  -511 -512 513 514 515 516 517 -518 519 -520
0.30/0.34	v  521 -522 -523 -524 -525 -526 -527 -528 -529 -530
0.30/0.34	v  531 -532 533 534 -535 536 -537 -538 539 -540
0.30/0.34	v  541 542 -543 544 545 -546 547 -548 -549 550
0.30/0.34	v  551 552 -553 -554 555 556 557 558 -559 560
0.30/0.34	v  -561 562 -563 564 -565 566 567 -568 569 -570
0.30/0.34	v  571 572 -573 574 575 576 577 -578 -579 -580
0.30/0.34	v  -581 -582 -583 584 -585 586 587 -588 589 590
0.30/0.34	v  591 -592 593 -594 -595 596 597 -598 -599 600
0.30/0.34	v  601 -602 -603 604 605 606 607 608 609 -610
0.30/0.34	v  611 -612 613 -614 -615 -616 617 618 -619 -620
0.30/0.34	v  621 -622 -623 -624 625 626 -627 -628 629 -630
0.30/0.34	v  631 -632 -633 -634 -635 -636 637 -638 639 -640
0.30/0.34	v  641 642 643 644 -645 -646 647 648 -649 650
0.30/0.34	v  651 -652 653 -654 655 656 657 658 659 -660
0.30/0.34	v  -661 -662 663 664 665 -666 -667 -668 669 -670
0.30/0.34	v  -671 672 673 674 675 676 677 678 679 680
0.30/0.34	v  681 682 -683 684 685 686 -687 688 689 -690
0.30/0.34	v  -691 -692 693 -694 695 696 697 698 699 700
0.30/0.34	v  -701 -702 703 -704 -705 -706 707 708 709 -710
0.30/0.34	v  -711 712 -713 714 -715 716 717 718 -719 720
0.30/0.34	v  721 -722 -723 -724 -725 726 727 -728 729 730
0.30/0.34	v  -731 -732 -733 734 -735 -736 737 738 739 -740
0.30/0.34	v  741 -742 743 744 745 -746 747 748 749 -750
0.30/0.34	v  -751 -752 753 -754 755 756 -757 -758 759 760
0.30/0.34	v  -761 762 763 764 -765 -766 -767 768 769 -770
0.30/0.34	v  -771 772 -773 -774 -775 -776 -777 778 779 780
0.30/0.34	v  -781 -782 -783 784 785 -786 787 -788 -789 -790
0.30/0.34	v  791 792 793 794 -795 796 797 798 799 800
0.30/0.34	v  801 -802 -803 -804 805 806 807 -808 809 810
0.30/0.34	v  0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node39/watcher-309548-1172543340 -o ROOT/results/node39/solver-309548-1172543340 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/309548-1172543340/saps /tmp/evaluation/309548-1172543340/instance-309548-1172543340.cnf 47607861 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 25645
/proc/meminfo: memFree=1911680/2055920 swapFree=4161536/4192956
[pid=25645] ppid=25643 vsize=5160 CPUtime=0
/proc/25645/stat : 25645 (saps) R 25643 25645 23985 0 -1 4194304 150 0 0 0 0 0 0 0 18 0 1 0 274289895 5283840 135 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134862079 0 0 4096 0 0 0 0 17 1 0 0
/proc/25645/statm: 1290 135 72 159 0 1129 0

[startup+0.107277 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 25645
/proc/meminfo: memFree=1911680/2055920 swapFree=4161536/4192956
[pid=25645] ppid=25643 vsize=5156 CPUtime=0.1
/proc/25645/stat : 25645 (saps) R 25643 25645 23985 0 -1 4194304 193 0 0 0 10 0 0 0 18 0 1 0 274289895 5279744 177 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134549520 0 0 4096 0 0 0 0 17 1 0 0
/proc/25645/statm: 1289 177 77 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

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

[startup+0.209293 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 25645
/proc/meminfo: memFree=1911680/2055920 swapFree=4161536/4192956
[pid=25645] ppid=25643 vsize=5156 CPUtime=0.2
/proc/25645/stat : 25645 (saps) R 25643 25645 23985 0 -1 4194304 193 0 0 0 20 0 0 0 19 0 1 0 274289895 5279744 177 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134549540 0 0 4096 0 0 0 0 17 1 0 0
/proc/25645/statm: 1289 177 77 159 0 1128 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 5156

[startup+0.311311 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 25645
/proc/meminfo: memFree=1911680/2055920 swapFree=4161536/4192956
[pid=25645] ppid=25643 vsize=5156 CPUtime=0.3
/proc/25645/stat : 25645 (saps) R 25643 25645 23985 0 -1 4194304 193 0 0 0 30 0 0 0 19 0 1 0 274289895 5279744 177 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134714996 0 0 4096 0 0 0 0 17 1 0 0
/proc/25645/statm: 1289 177 77 159 0 1128 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 5156

Child status: 10
Real time (s): 0.348937
CPU time (s): 0.348946
CPU user time (s): 0.344947
CPU system time (s): 0.003999
CPU usage (%): 100.003
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.344947
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 211
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= 8
involuntary context switches= 0

runsolver used 0.003999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node39 on Tue Feb 27 02:29:00 UTC 2007

IDJOB= 309548
IDBENCH= 20263
IDSOLVER= 103
FILE ID= node39/309548-1172543340

PBS_JOBID= 3971822

Free space on /tmp= 66556 MiB

SOLVER NAME= saps 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v810/unif2p-p0.9-v810-c2932-S1557868591-12-SAT.cnf
COMMAND LINE= /tmp/evaluation/309548-1172543340/saps /tmp/evaluation/309548-1172543340/instance-309548-1172543340.cnf  47607861   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node39/watcher-309548-1172543340 -o ROOT/results/node39/solver-309548-1172543340 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/309548-1172543340/saps /tmp/evaluation/309548-1172543340/instance-309548-1172543340.cnf  47607861   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  f3dd554f0235253f67a0d81f3fcd0e26

RANDOM SEED= 47607861

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node39.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.285
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.285
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1912088 kB
Buffers:         12448 kB
Cached:          72104 kB
SwapCached:      25676 kB
Active:          46612 kB
Inactive:        70392 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1912088 kB
SwapTotal:     4192956 kB
SwapFree:      4161536 kB
Dirty:            2200 kB
Writeback:           0 kB
Mapped:          15364 kB
Slab:            12868 kB
Committed_AS:   645112 kB
PageTables:       1412 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66556 MiB

End job on node39 on Tue Feb 27 02:29:01 UTC 2007