Trace number 1734248

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
precosat 236SAT 0.238963 0.239291

General information on the benchmark

NameCRAFTED/sgi/
satsgi-n25himBHm27-p0-q251.cnf
MD5SUM741e1de0c22ee8d0ee067ccd7623ed63
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008997
Satisfiable
(Un)Satisfiability was proved
Number of variables675
Number of clauses16900
Sum of the clauses size34425
Maximum clause length27
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 216875
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 525

Solver Data 

0.00/0.00	c PicoSATLight Version 236 3e7a3f8825c0b9e241f38a63fee5517540b2feca
0.00/0.00	c Copyright (C) 2009, Armin Biere, JKU, Linz, Austria.  All rights reserved.
0.00/0.00	c Released on Sun Mar 22 10:16:26 CET 2009
0.00/0.00	c Compiled on Tue Mar 24 21:24:39 CET 2009
0.00/0.00	c g++ (GCC) 4.3.2 20081105 (Red Hat 4.3.2-7)
0.00/0.00	c -O3 -m32 -static -Wall -Wextra -DNDEBUG -DNLOGPRECO -DNSTATSPRECO
0.00/0.00	c -finline-limit=10000000 -fomit-frame-pointer -fno-exceptions
0.00/0.00	c Linux baghera 2.6.27.19-170.2.35.fc10.i686.PAE i686
0.00/0.00	c
0.00/0.00	c reading HOME/instance-1734248-1240795681.cnf
0.00/0.00	c found header 'p cnf 675 16900'
0.00/0.01	c finished parsing
0.00/0.01	c
0.00/0.01	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.00/0.01	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.00/0.01	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.00/0.01	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.00/0.01	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.00/0.01	c --random=1 --spread=2000 --seed=0 --skip=25
0.00/0.01	c
0.00/0.01	c sizeof     vars[0] = 16   alignment = 0       0 MB
0.00/0.01	c sizeof     orgs[0] =  8   alignment = 0       0 MB
0.00/0.01	c sizeof     occs[0] =  8   alignment = 0       0 MB
0.00/0.01	c sizeof iirfs[0..1] =  8   alignment = 0       0 MB
0.00/0.01	c
0.00/0.01	c starting search after 0.0 seconds
0.00/0.01	c no decision limit
0.00/0.01	c
0.00/0.01	c       original/binary      fixed     eliminated      learned       agility
0.00/0.01	c   seconds        variables     equivalent    conflicts       height       MB
0.00/0.01	c
0.00/0.01	c *    0.0    16900     675      0     0      0       0      0    0.0   0    1
0.19/0.23	c s    0.2    16225     650      0     0     25       0      0    0.0   0    1
0.19/0.23	c l    0.2    16225     650      0     0     25       0   1000    0.0   0    1
0.19/0.23	c 1    0.2    16225     650      0     0     25       0      0  175.0   0    1
0.19/0.23	c
0.19/0.23	s SATISFIABLE
0.19/0.23	v 1 -2 -3 -4 -5 -6 -7
0.19/0.23	v -8 -9 -10 -11 -12 -13 -14 -15
0.19/0.23	v -16 -17 -18 -19 -20 -21 -22 -23
0.19/0.23	v -24 -25 -26 -27 -28 -29 -30 -31
0.19/0.23	v -32 -33 -34 -35 -36 -37 -38 -39
0.19/0.23	v -40 -41 -42 -43 -44 -45 -46 -47
0.19/0.23	v -48 -49 -50 -51 -52 -53 54 -55
0.19/0.23	v -56 -57 -58 -59 -60 -61 -62 -63
0.19/0.23	v -64 -65 -66 -67 -68 -69 -70 -71
0.19/0.23	v -72 -73 -74 -75 -76 -77 -78 -79
0.19/0.23	v 80 -81 -82 -83 -84 -85 -86 -87
0.19/0.23	v -88 -89 -90 -91 -92 -93 -94 -95
0.19/0.23	v -96 -97 -98 -99 -100 -101 -102 -103
0.19/0.23	v -104 -105 106 -107 -108 -109 -110 -111
0.19/0.23	v -112 -113 -114 -115 -116 -117 -118 -119
0.19/0.23	v -120 -121 -122 -123 -124 -125 -126 -127
0.19/0.23	v -128 -129 -130 -131 132 -133 -134 -135
0.19/0.23	v -136 -137 -138 -139 -140 -141 -142 -143
0.19/0.23	v -144 -145 -146 -147 -148 -149 -150 -151
0.19/0.23	v -152 -153 -154 -155 -156 -157 158 -159
0.19/0.23	v -160 -161 -162 -163 -164 -165 -166 -167
0.19/0.23	v -168 -169 -170 -171 -172 -173 -174 -175
0.19/0.23	v -176 -177 -178 -179 -180 -181 -182 -183
0.19/0.23	v 184 -185 -186 -187 -188 -189 -190 -191
0.19/0.23	v -192 -193 -194 -195 -196 -197 -198 -199
0.19/0.23	v -200 -201 -202 -203 -204 -205 -206 -207
0.19/0.23	v -208 -209 210 -211 -212 -213 -214 -215
0.19/0.23	v -216 -217 -218 -219 -220 -221 -222 -223
0.19/0.23	v -224 -225 -226 -227 -228 -229 -230 -231
0.19/0.23	v -232 -233 -234 -235 236 -237 -238 -239
0.19/0.23	v -240 -241 -242 -243 -244 -245 -246 -247
0.19/0.23	v -248 -249 -250 -251 -252 -253 -254 -255
0.19/0.23	v -256 -257 -258 -259 -260 -261 262 -263
0.19/0.23	v -264 -265 -266 -267 -268 -269 -270 -271
0.19/0.23	v -272 -273 -274 -275 -276 -277 -278 -279
0.19/0.23	v -280 -281 -282 -283 -284 -285 -286 -287
0.19/0.23	v 288 -289 -290 -291 -292 -293 -294 -295
0.19/0.23	v -296 -297 -298 -299 -300 -301 -302 -303
0.19/0.23	v -304 -305 -306 -307 -308 -309 -310 -311
0.19/0.23	v -312 -313 314 -315 -316 -317 -318 -319
0.19/0.23	v -320 -321 -322 -323 -324 -325 -326 -327
0.19/0.23	v -328 -329 -330 -331 -332 -333 -334 -335
0.19/0.23	v -336 -337 -338 -339 340 -341 -342 -343
0.19/0.23	v -344 -345 -346 -347 -348 -349 -350 -351
0.19/0.23	v -352 -353 -354 -355 -356 -357 -358 -359
0.19/0.23	v -360 -361 -362 -363 -364 -365 366 -367
0.19/0.23	v -368 -369 -370 -371 -372 -373 -374 -375
0.19/0.23	v -376 -377 -378 -379 -380 -381 -382 -383
0.19/0.23	v -384 -385 -386 -387 -388 -389 -390 -391
0.19/0.23	v 392 -393 -394 -395 -396 -397 -398 -399
0.19/0.23	v -400 -401 -402 -403 -404 -405 -406 -407
0.19/0.23	v -408 -409 -410 -411 -412 -413 -414 -415
0.19/0.23	v -416 -417 418 -419 -420 -421 -422 -423
0.19/0.23	v -424 -425 -426 -427 -428 -429 -430 -431
0.19/0.23	v -432 -433 -434 -435 -436 -437 -438 -439
0.19/0.23	v -440 -441 -442 -443 444 -445 -446 -447
0.19/0.23	v -448 -449 -450 -451 -452 -453 -454 -455
0.19/0.23	v -456 -457 -458 -459 -460 -461 -462 -463
0.19/0.23	v -464 -465 -466 -467 -468 -469 470 -471
0.19/0.23	v -472 -473 -474 -475 -476 -477 -478 -479
0.19/0.23	v -480 -481 -482 -483 -484 -485 -486 -487
0.19/0.23	v -488 -489 -490 -491 -492 -493 -494 -495
0.19/0.23	v 496 -497 -498 -499 -500 -501 -502 -503
0.19/0.23	v -504 -505 -506 -507 -508 -509 -510 -511
0.19/0.23	v -512 -513 -514 -515 -516 -517 -518 -519
0.19/0.23	v -520 -521 522 -523 -524 -525 -526 -527
0.19/0.23	v -528 -529 -530 -531 -532 -533 -534 -535
0.19/0.23	v -536 -537 -538 -539 -540 -541 -542 -543
0.19/0.23	v -544 -545 -546 -547 548 -549 -550 -551
0.19/0.23	v -552 -553 -554 -555 -556 -557 -558 -559
0.19/0.23	v -560 -561 -562 -563 -564 -565 -566 -567
0.19/0.23	v -568 -569 -570 -571 -572 -573 574 -575
0.19/0.23	v -576 -577 -578 -579 -580 -581 -582 -583
0.19/0.23	v -584 -585 -586 -587 -588 -589 -590 -591
0.19/0.23	v -592 -593 -594 -595 -596 -597 -598 -599
0.19/0.23	v 600 -601 -602 -603 -604 -605 -606 -607
0.19/0.23	v -608 -609 -610 -611 -612 -613 -614 -615
0.19/0.23	v -616 -617 -618 -619 -620 -621 -622 -623
0.19/0.23	v -624 -625 626 -627 -628 -629 -630 -631
0.19/0.23	v -632 -633 -634 -635 -636 -637 -638 -639
0.19/0.23	v -640 -641 -642 -643 -644 -645 -646 -647
0.19/0.23	v -648 -649 -650 -651 652 -653 -654 -655
0.19/0.23	v -656 -657 -658 -659 -660 -661 -662 -663
0.19/0.23	v -664 -665 -666 -667 -668 -669 -670 -671
0.19/0.23	v -672 -673 -674 -675
0.19/0.23	v 0
0.19/0.23	c
0.19/0.23	c 0 conflicts, 351 decisions, 1 random
0.19/0.23	c 0 iterations, 0 restarts, 0 skipped
0.19/0.23	c 0 enlarged, 0 shrunken, 0 rescored, 0 rebiased
0.19/0.23	c 1 simplifications, 0 reductions
0.19/0.23	c
0.19/0.23	c vars: 0 fixed, 0 equiv, 25 elim, 0 merged
0.19/0.23	c elim: 116900 resolutions, 1 phases, 1 rounds
0.19/0.23	c sbst: 100% substituted, 0.0% nots, 100.0% ands, 0.0% xors, 0.0% ites
0.19/0.23	c arty: 26.00 and 0.00 xor average arity
0.19/0.23	c prbe: 1350 probed, 1 phases, 1 rounds
0.19/0.23	c prbe: 0 failed, 0 lifted, 0 merged
0.19/0.23	c sccs: 0 non trivial, 0 fixed, 0 merged
0.19/0.23	c hash: 0 units, 0 merged
0.19/0.23	c mins: 0 learned, 0% deleted, 0 strong, 0 depth
0.19/0.23	c subs: 0 forward, 0 backward, 0 doms
0.19/0.23	c strs: 0 forward, 0 backward
0.19/0.23	c doms: 0 dominators, 0 high, 0 low
0.19/0.23	c prps: 35750 propagations, 0.15 megaprops
0.19/0.23	c
0.19/0.23	c 0.2 seconds, 2 MB max, 0 MB recycled

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-1734248-1240795681/watcher-1734248-1240795681 -o /tmp/evaluation-result-1734248-1240795681/solver-1734248-1240795681 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/precosat HOME/instance-1734248-1240795681.cnf 

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
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: 1.27 1.69 1.47 3/65 28057
/proc/meminfo: memFree=1462440/2055920 swapFree=4192192/4192956
[pid=28057] ppid=28055 vsize=1196 CPUtime=0
/proc/28057/stat : 28057 (precosat) R 28055 28057 25936 0 -1 4194304 189 0 0 0 0 0 0 0 20 0 1 0 107598233 1224704 174 1992294400 134512640 135151029 4294956224 18446744073709551615 134703758 0 0 4096 17442 0 0 0 17 1 0 0
/proc/28057/statm: 299 174 63 155 0 142 0

[startup+0.0774371 s]
/proc/loadavg: 1.27 1.69 1.47 3/65 28057
/proc/meminfo: memFree=1462440/2055920 swapFree=4192192/4192956
[pid=28057] ppid=28055 vsize=2580 CPUtime=0.07
/proc/28057/stat : 28057 (precosat) R 28055 28057 25936 0 -1 4194304 746 0 0 0 7 0 0 0 20 0 1 0 107598233 2641920 540 1992294400 134512640 135151029 4294956224 18446744073709551615 134548056 0 0 4096 17442 0 0 0 17 1 0 0
/proc/28057/statm: 645 540 79 155 0 488 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 2580

[startup+0.101439 s]
/proc/loadavg: 1.27 1.69 1.47 3/65 28057
/proc/meminfo: memFree=1462440/2055920 swapFree=4192192/4192956
[pid=28057] ppid=28055 vsize=2580 CPUtime=0.09
/proc/28057/stat : 28057 (precosat) R 28055 28057 25936 0 -1 4194304 746 0 0 0 9 0 0 0 20 0 1 0 107598233 2641920 540 1992294400 134512640 135151029 4294956224 18446744073709551615 134548086 0 0 4096 17442 0 0 0 17 1 0 0
/proc/28057/statm: 645 540 79 155 0 488 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2580

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

[startup+0.201449 s]
/proc/loadavg: 1.27 1.69 1.47 3/65 28057
/proc/meminfo: memFree=1462440/2055920 swapFree=4192192/4192956
[pid=28057] ppid=28055 vsize=2580 CPUtime=0.19
/proc/28057/stat : 28057 (precosat) R 28055 28057 25936 0 -1 4194304 746 0 0 0 19 0 0 0 21 0 1 0 107598233 2641920 540 1992294400 134512640 135151029 4294956224 18446744073709551615 134548061 0 0 4096 17442 0 0 0 17 1 0 0
/proc/28057/statm: 645 540 79 155 0 488 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 2580

Child status: 10
Real time (s): 0.239291
CPU time (s): 0.238963
CPU user time (s): 0.235964
CPU system time (s): 0.002999
CPU usage (%): 99.8629
Max. virtual memory (cumulated for all children) (KiB): 2580

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.235964
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 747
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= 0

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node76 at 2009-04-27 03:28:01
IDJOB=1734248
IDBENCH=71203
IDSOLVER=507
FILE ID=node76/1734248-1240795681
PBS_JOBID= 9187344
Free space on /tmp= 66204 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT09/CRAFTED/sgi/satsgi-n25himBHm27-p0-q251.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1734248-1240795681/watcher-1734248-1240795681 -o /tmp/evaluation-result-1734248-1240795681/solver-1734248-1240795681 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/precosat HOME/instance-1734248-1240795681.cnf

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

MD5SUM BENCH= 741e1de0c22ee8d0ee067ccd7623ed63
RANDOM SEED=2062302220

node76.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		: 3000.220
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		: 3000.220
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1462856 kB
Buffers:         70316 kB
Cached:         448380 kB
SwapCached:        620 kB
Active:         237752 kB
Inactive:       294772 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1462856 kB
SwapTotal:     4192956 kB
SwapFree:      4192192 kB
Dirty:            2576 kB
Writeback:           0 kB
Mapped:          22340 kB
Slab:            46472 kB
Committed_AS:   426376 kB
PageTables:       1432 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= 66204 MiB
End job on node76 at 2009-04-27 03:28:01