Trace number 1834280

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
MiniSAT 09z 2009-03-22SAT 0.18597 0.186276

General information on the benchmark

NameCRAFTED/sgi/
new-difficult-28-302-26-75.cnf
MD5SUMc8a761b6d0b0b208363324b0ab04d363
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.18597
Satisfiable
(Un)Satisfiability was proved
Number of variables728
Number of clauses48442
Sum of the clauses size97560
Maximum clause length28
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 248416
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 526

Solver Data 

0.00/0.00	c Parsing...
0.00/0.02	c ==============================================================================
0.00/0.02	c |           |     ORIGINAL     |              LEARNT              |          |
0.00/0.02	c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
0.00/0.02	c ==============================================================================
0.00/0.02	c |         0 |   48442    97560 |   14532       0        0     nan |  0.000 % |
0.00/0.11	c |         0 |   47714   131916 |      --       0       --      -- |     --   | -728/34356
0.00/0.11	c ==============================================================================
0.00/0.11	c Result  :   #vars: 702   #clauses: 47714   #literals: 131916
0.00/0.11	c CPU time:   0.108983 s
0.00/0.11	c ==============================================================================
0.00/0.15	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.15	c Number of variables   : 702          
0.00/0.15	c Number of clauses     : 47714        
0.00/0.17	c Parsing time: 0.02         s
0.00/0.17	c restarts              : 1
0.00/0.17	c conflicts             : 0              (0 /sec)
0.00/0.18	c decisions             : 18             (0.00 % random) (857 /sec)
0.00/0.18	c propagations          : 702            (33435 /sec)
0.00/0.18	c conflict literals     : 0              ( nan % deleted)
0.00/0.18	c Memory used           : 3.75 MB
0.00/0.18	c CPU time              : 0.020996 s
0.00/0.18	SATISFIABLE
0.00/0.18	
0.00/0.18	s SATISFIABLE
0.00/0.18	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 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1834280-1242829350/watcher-1834280-1242829350 -o /tmp/evaluation-result-1834280-1242829350/solver-1834280-1242829350 -C 1200 -W 1800 -M 1800 SatELiteGTI HOME/instance-1834280-1242829350.cnf -random-seed=2090700527 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 14080
/proc/meminfo: memFree=1921376/2055920 swapFree=4179780/4192956
[pid=14080] ppid=14078 vsize=5356 CPUtime=0
/proc/14080/stat : 14080 (SatELiteGTI) R 14078 14080 13693 0 -1 4194304 290 250 0 0 0 0 0 0 18 0 1 0 310962848 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 258938933981 0 0 4100 65536 0 0 0 17 0 0 0
/proc/14080/statm: 1339 237 197 169 0 50 0

[startup+0.0276929 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 14080
/proc/meminfo: memFree=1921376/2055920 swapFree=4179780/4192956
[pid=14080] ppid=14078 vsize=5356 CPUtime=0
/proc/14080/stat : 14080 (SatELiteGTI) S 14078 14080 13693 0 -1 4194304 310 250 0 0 0 0 0 0 19 0 1 0 310962848 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 258939085636 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/14080/statm: 1339 237 197 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.102699 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 14080
/proc/meminfo: memFree=1921376/2055920 swapFree=4179780/4192956
[pid=14080] ppid=14078 vsize=5356 CPUtime=0
/proc/14080/stat : 14080 (SatELiteGTI) S 14078 14080 13693 0 -1 4194304 310 250 0 0 0 0 0 0 19 0 1 0 310962848 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 258939085636 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/14080/statm: 1339 237 197 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

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

Child status: 10
Real time (s): 0.186276
CPU time (s): 0.18597
CPU user time (s): 0.165974
CPU system time (s): 0.019996
CPU usage (%): 99.8357
Max. virtual memory (cumulated for all children) (KiB): 5356

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.165974
system time used= 0.019996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2728
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= 20
involuntary context switches= 22

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node45 at 2009-05-20 16:22:30
IDJOB=1834280
IDBENCH=71806
IDSOLVER=672
FILE ID=node45/1834280-1242829350
PBS_JOBID= 9322515
Free space on /tmp= 66188 MiB

SOLVER NAME= MiniSAT 09z 2009-03-22
BENCH NAME= SAT09/CRAFTED/sgi/new-difficult-28-302-26-75.cnf
COMMAND LINE= SatELiteGTI BENCHNAME -random-seed=RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1834280-1242829350/watcher-1834280-1242829350 -o /tmp/evaluation-result-1834280-1242829350/solver-1834280-1242829350 -C 1200 -W 1800 -M 1800  SatELiteGTI HOME/instance-1834280-1242829350.cnf -random-seed=2090700527

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= c8a761b6d0b0b208363324b0ab04d363
RANDOM SEED=2090700527

node45.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.231
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		: 3000.231
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:       1921856 kB
Buffers:         22220 kB
Cached:          75304 kB
SwapCached:       7332 kB
Active:          49756 kB
Inactive:        56628 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1921856 kB
SwapTotal:     4192956 kB
SwapFree:      4179780 kB
Dirty:            2136 kB
Writeback:           0 kB
Mapped:          13908 kB
Slab:            13764 kB
Committed_AS:  1025392 kB
PageTables:       1388 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= 66184 MiB
End job on node45 at 2009-05-20 16:22:30