Trace number 1736198

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 0.348946 0.34918

General information on the benchmark

NameCRAFTED/sgi/
sgi-difficult7.cnf
MD5SUM99db6397e91b77ca5e6f5d44dc60b594
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.013997
Satisfiable
(Un)Satisfiability was proved
Number of variables728
Number of clauses28986
Sum of the clauses size58648
Maximum clause length28
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 228960
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 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-1736198-1240810599.cnf
0.00/0.00	c found header 'p cnf 728 28986'
0.01/0.03	c finished parsing
0.01/0.03	c
0.01/0.03	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.01/0.03	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.01/0.03	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.01/0.03	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.01/0.03	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.01/0.03	c --random=1 --spread=2000 --seed=0 --skip=25
0.01/0.03	c
0.01/0.03	c sizeof     vars[0] = 16   alignment = 0       0 MB
0.01/0.03	c sizeof     orgs[0] =  8   alignment = 0       0 MB
0.01/0.03	c sizeof     occs[0] =  8   alignment = 0       0 MB
0.01/0.03	c sizeof iirfs[0..1] =  8   alignment = 0       0 MB
0.01/0.03	c
0.01/0.03	c starting search after 0.0 seconds
0.01/0.03	c no decision limit
0.01/0.03	c
0.01/0.03	c       original/binary      fixed     eliminated      learned       agility
0.01/0.03	c   seconds        variables     equivalent    conflicts       height       MB
0.01/0.03	c
0.01/0.03	c *    0.0    28986     728      0     0      0       0      0    0.0   0    2
0.29/0.34	c s    0.3    28258     702      0     0     26       0      0    0.0   0    2
0.29/0.34	c l    0.3    28258     702      0     0     26       0   1381    0.0   0    2
0.29/0.34	c 1    0.3    28258     702      0     0     26       1      1  131.0   0    2
0.29/0.34	c
0.29/0.34	s SATISFIABLE
0.29/0.34	v 1 -2 -3 -4 -5 -6 -7
0.29/0.34	v -8 -9 -10 -11 -12 -13 -14 -15
0.29/0.34	v -16 -17 -18 -19 -20 -21 -22 -23
0.29/0.34	v -24 -25 -26 -27 -28 -29 -30 -31
0.29/0.34	v -32 -33 -34 -35 -36 -37 -38 -39
0.29/0.34	v -40 -41 -42 -43 -44 -45 -46 -47
0.29/0.34	v -48 -49 -50 -51 -52 -53 -54 -55
0.29/0.34	v 56 -57 -58 -59 -60 -61 -62 -63
0.29/0.34	v -64 -65 -66 -67 -68 -69 -70 -71
0.29/0.34	v -72 -73 -74 -75 -76 -77 -78 -79
0.29/0.34	v -80 -81 -82 83 -84 -85 -86 -87
0.29/0.34	v -88 -89 -90 -91 -92 -93 -94 -95
0.29/0.34	v -96 -97 -98 -99 -100 -101 -102 -103
0.29/0.34	v -104 -105 -106 -107 -108 -109 110 -111
0.29/0.34	v -112 -113 -114 -115 -116 -117 -118 -119
0.29/0.34	v -120 -121 -122 -123 -124 -125 -126 -127
0.29/0.34	v -128 -129 -130 -131 -132 -133 134 -135
0.29/0.34	v -136 -137 -138 -139 -140 -141 -142 -143
0.29/0.34	v -144 -145 -146 -147 -148 -149 -150 -151
0.29/0.34	v -152 -153 -154 -155 -156 -157 -158 -159
0.29/0.34	v -160 -161 -162 -163 -164 165 -166 -167
0.29/0.34	v -168 -169 -170 -171 -172 -173 -174 -175
0.29/0.34	v -176 -177 -178 -179 -180 -181 -182 -183
0.29/0.34	v -184 -185 -186 -187 -188 -189 -190 -191
0.29/0.34	v 192 -193 -194 -195 -196 -197 -198 -199
0.29/0.34	v -200 -201 -202 -203 -204 -205 -206 -207
0.29/0.34	v -208 -209 -210 -211 -212 -213 -214 -215
0.29/0.34	v -216 -217 -218 219 -220 -221 -222 -223
0.29/0.34	v -224 -225 -226 -227 -228 -229 -230 -231
0.29/0.34	v -232 -233 -234 -235 -236 -237 -238 -239
0.29/0.34	v -240 -241 -242 -243 -244 245 -246 -247
0.29/0.34	v -248 -249 -250 -251 -252 -253 -254 -255
0.29/0.34	v -256 -257 -258 -259 -260 -261 -262 -263
0.29/0.34	v -264 -265 -266 -267 -268 -269 -270 -271
0.29/0.34	v 272 -273 -274 -275 -276 -277 -278 -279
0.29/0.34	v -280 -281 -282 -283 -284 -285 -286 -287
0.29/0.34	v -288 -289 -290 -291 -292 -293 -294 -295
0.29/0.34	v -296 -297 -298 299 -300 -301 -302 -303
0.29/0.34	v -304 -305 -306 -307 -308 -309 -310 -311
0.29/0.34	v -312 -313 -314 -315 -316 -317 -318 -319
0.29/0.34	v -320 -321 -322 -323 -324 325 -326 -327
0.29/0.34	v -328 -329 -330 -331 -332 -333 -334 -335
0.29/0.34	v -336 -337 -338 -339 -340 -341 -342 -343
0.29/0.34	v -344 -345 -346 -347 -348 -349 -350 -351
0.29/0.34	v 352 -353 -354 -355 -356 -357 -358 -359
0.29/0.34	v -360 -361 -362 -363 -364 -365 -366 -367
0.29/0.34	v -368 -369 -370 -371 -372 -373 -374 -375
0.29/0.34	v -376 -377 -378 379 -380 -381 -382 -383
0.29/0.34	v -384 -385 -386 -387 -388 -389 -390 -391
0.29/0.34	v -392 -393 -394 -395 -396 -397 -398 -399
0.29/0.34	v -400 -401 -402 -403 -404 -405 406 -407
0.29/0.34	v -408 -409 -410 -411 -412 -413 -414 -415
0.29/0.34	v -416 -417 -418 -419 -420 -421 -422 -423
0.29/0.34	v -424 -425 -426 -427 -428 -429 -430 -431
0.29/0.34	v -432 433 -434 -435 -436 -437 -438 -439
0.29/0.34	v -440 -441 -442 -443 -444 -445 -446 -447
0.29/0.34	v -448 -449 -450 -451 -452 -453 -454 -455
0.29/0.34	v -456 -457 -458 459 -460 -461 -462 -463
0.29/0.34	v -464 -465 -466 -467 -468 -469 -470 -471
0.29/0.34	v -472 -473 -474 -475 -476 -477 -478 -479
0.29/0.34	v -480 -481 -482 -483 -484 -485 486 -487
0.29/0.34	v -488 -489 -490 -491 -492 -493 -494 -495
0.29/0.34	v -496 -497 -498 -499 -500 -501 -502 -503
0.29/0.34	v -504 -505 -506 -507 -508 -509 -510 -511
0.29/0.34	v -512 -513 -514 -515 516 -517 -518 -519
0.29/0.34	v -520 -521 -522 -523 -524 -525 -526 -527
0.29/0.34	v -528 -529 -530 -531 -532 -533 -534 -535
0.29/0.34	v -536 -537 -538 539 -540 -541 -542 -543
0.29/0.34	v -544 -545 -546 -547 -548 -549 -550 -551
0.29/0.34	v -552 -553 -554 -555 -556 -557 -558 -559
0.29/0.34	v -560 -561 -562 -563 -564 -565 -566 -567
0.29/0.34	v -568 569 -570 -571 -572 -573 -574 -575
0.29/0.34	v -576 -577 -578 -579 -580 -581 -582 -583
0.29/0.34	v -584 -585 -586 -587 -588 -589 -590 -591
0.29/0.34	v -592 -593 -594 -595 -596 -597 -598 -599
0.29/0.34	v -600 -601 -602 -603 -604 -605 606 -607
0.29/0.34	v -608 -609 -610 -611 -612 -613 -614 -615
0.29/0.34	v -616 -617 618 -619 -620 -621 -622 -623
0.29/0.34	v -624 -625 -626 -627 -628 -629 -630 -631
0.29/0.34	v -632 -633 -634 -635 -636 -637 -638 -639
0.29/0.34	v -640 -641 -642 -643 -644 -645 -646 -647
0.29/0.34	v -648 -649 -650 -651 652 -653 -654 -655
0.29/0.34	v -656 -657 -658 -659 -660 -661 -662 -663
0.29/0.34	v -664 -665 -666 -667 -668 -669 -670 -671
0.29/0.34	v -672 -673 -674 -675 -676 -677 678 -679
0.29/0.34	v -680 -681 -682 -683 -684 -685 -686 -687
0.29/0.34	v -688 -689 -690 -691 -692 -693 -694 -695
0.29/0.34	v -696 -697 -698 -699 -700 -701 -702 703
0.29/0.34	v -704 -705 -706 -707 -708 -709 -710 -711
0.29/0.34	v -712 -713 -714 -715 -716 -717 -718 -719
0.29/0.34	v -720 -721 -722 -723 -724 -725 -726 -727
0.29/0.34	v -728
0.29/0.34	v 0
0.29/0.34	c
0.29/0.34	c 1 conflicts, 263 decisions, 1 random
0.29/0.34	c 0 iterations, 0 restarts, 0 skipped
0.29/0.34	c 0 enlarged, 0 shrunken, 0 rescored, 0 rebiased
0.29/0.34	c 1 simplifications, 0 reductions
0.29/0.34	c
0.29/0.34	c vars: 0 fixed, 0 equiv, 26 elim, 0 merged
0.29/0.34	c elim: 147629 resolutions, 1 phases, 1 rounds
0.29/0.34	c sbst: 100% substituted, 0.0% nots, 100.0% ands, 0.0% xors, 0.0% ites
0.29/0.34	c arty: 27.00 and 0.00 xor average arity
0.29/0.34	c prbe: 1456 probed, 1 phases, 1 rounds
0.29/0.34	c prbe: 0 failed, 0 lifted, 0 merged
0.29/0.34	c sccs: 0 non trivial, 0 fixed, 0 merged
0.29/0.34	c hash: 0 units, 0 merged
0.29/0.34	c mins: 20 learned, 0% deleted, 0 strong, 1 depth
0.29/0.34	c subs: 0 forward, 0 backward, 0 doms
0.29/0.34	c strs: 3969 forward, 0 backward
0.29/0.34	c doms: 0 dominators, 0 high, 0 low
0.29/0.34	c prps: 60085 propagations, 0.17 megaprops
0.29/0.34	c
0.29/0.34	c 0.3 seconds, 3 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-1736198-1240810599/watcher-1736198-1240810599 -o /tmp/evaluation-result-1736198-1240810599/solver-1736198-1240810599 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/precosat HOME/instance-1736198-1240810599.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: 1.00 1.00 1.00 2/64 30670
/proc/meminfo: memFree=1602968/2055920 swapFree=4180724/4192956
[pid=30670] ppid=30668 vsize=1052 CPUtime=0
/proc/30670/stat : 30670 (precosat) R 30668 30670 29930 0 -1 4194304 170 0 0 0 0 0 0 0 18 0 1 0 109093372 1077248 155 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/30670/statm: 263 155 63 155 0 106 0

[startup+0.0218159 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 30670
/proc/meminfo: memFree=1602968/2055920 swapFree=4180724/4192956
[pid=30670] ppid=30668 vsize=2248 CPUtime=0.01
/proc/30670/stat : 30670 (precosat) R 30668 30670 29930 0 -1 4194304 494 0 0 0 1 0 0 0 18 0 1 0 109093372 2301952 446 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/30670/statm: 562 447 63 155 0 405 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2248

[startup+0.101824 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 30670
/proc/meminfo: memFree=1602968/2055920 swapFree=4180724/4192956
[pid=30670] ppid=30668 vsize=3616 CPUtime=0.09
/proc/30670/stat : 30670 (precosat) R 30668 30670 29930 0 -1 4194304 937 0 0 0 9 0 0 0 18 0 1 0 109093372 3702784 823 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/30670/statm: 904 823 79 155 0 747 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3616

[startup+0.301847 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 30670
/proc/meminfo: memFree=1602968/2055920 swapFree=4180724/4192956
[pid=30670] ppid=30668 vsize=3880 CPUtime=0.29
/proc/30670/stat : 30670 (precosat) R 30668 30670 29930 0 -1 4194304 991 0 0 0 29 0 0 0 19 0 1 0 109093372 3973120 877 1992294400 134512640 135151029 4294956224 18446744073709551615 134526177 0 0 4096 17442 0 0 0 17 1 0 0
/proc/30670/statm: 970 877 79 155 0 813 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3880

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

Child status: 10
Real time (s): 0.34918
CPU time (s): 0.348946
CPU user time (s): 0.341948
CPU system time (s): 0.006998
CPU usage (%): 99.933
Max. virtual memory (cumulated for all children) (KiB): 3880

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.341948
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 992
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 0.005999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node23 at 2009-04-27 07:36:39
IDJOB=1736198
IDBENCH=71619
IDSOLVER=507
FILE ID=node23/1736198-1240810599
PBS_JOBID= 9187440
Free space on /tmp= 66320 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT09/CRAFTED/sgi/sgi-difficult7.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1736198-1240810599/watcher-1736198-1240810599 -o /tmp/evaluation-result-1736198-1240810599/solver-1736198-1240810599 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/precosat HOME/instance-1736198-1240810599.cnf

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

MD5SUM BENCH= 99db6397e91b77ca5e6f5d44dc60b594
RANDOM SEED=1305104998

node23.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		: 3000.238
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		: 3000.238
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:       1603448 kB
Buffers:         60212 kB
Cached:         333916 kB
SwapCached:       6256 kB
Active:         164804 kB
Inactive:       237900 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1603448 kB
SwapTotal:     4192956 kB
SwapFree:      4180724 kB
Dirty:            1596 kB
Writeback:           0 kB
Mapped:          14064 kB
Slab:            35828 kB
Committed_AS:   495848 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= 66320 MiB
End job on node23 at 2009-04-27 07:36:39