Trace number 1734281

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
CircUs 2009-03-23SAT 0.029994 0.0303391

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 

0.00/0.02	c CirCUs release 2.0 (compiled 25-Mar-09 at 4:46 PM)
0.00/0.02	c Eliminate time :       0.01 
0.00/0.03	c CNF read time  :       0.01 
0.00/0.03	c CNF solve time :       0.02 
0.00/0.03	c Memory usage :    2.31641 MB
0.00/0.03	c Restart : 1
0.00/0.03	c Decisions : random(3), heuristic(353), history(0/0)
0.00/0.03	c Implications : 675
0.00/0.03	c Forced Restart : 0
0.00/0.03	c Polarity Change : 0
0.00/0.03	c Learned clasues  : 0 out of 0
0.00/0.03	c Learned literals : 0 out of 0
0.00/0.03	c Number of first UIP : 0 out of 0
0.00/0.03	c Number of simplify : 0
0.00/0.03	c Number of continuous distill : 0
0.00/0.03	c Saved conflict clasues : 0
0.00/0.03	c Saved conflict literals : 0
0.00/0.03	c Additional conflict clauses : 0
0.00/0.03	c Additional conflict literals : 0
0.00/0.03	c Additional conflict analysis : 0
0.00/0.03	s SATISFIABLE
0.00/0.03	v -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 
0.00/0.03	v -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 
0.00/0.03	v -21 -22 -23 -24  25 -26 -27 -28 -29 -30 
0.00/0.03	v -31 -32 -33 -34 -35 -36 -37 -38 -39 -40 
0.00/0.03	v -41 -42 -43 -44 -45 -46 -47 -48 -49 -50 
0.00/0.03	v  51 -52 -53 -54 -55 -56 -57 -58 -59 -60 
0.00/0.03	v -61 -62 -63 -64 -65 -66 -67 -68 -69 -70 
0.00/0.03	v -71 -72 -73 -74 -75 -76  77 -78 -79 -80 
0.00/0.03	v -81 -82 -83 -84 -85 -86 -87 -88 -89 -90 
0.00/0.03	v -91 -92 -93 -94 -95 -96 -97 -98 -99 -100 
0.00/0.03	v -101 -102  103 -104 -105 -106 -107 -108 -109 -110 
0.00/0.03	v -111 -112 -113 -114 -115 -116 -117 -118 -119 -120 
0.00/0.03	v -121 -122 -123 -124 -125 -126 -127 -128  129 -130 
0.00/0.03	v -131 -132 -133 -134 -135 -136 -137 -138 -139 -140 
0.00/0.03	v -141 -142 -143 -144 -145 -146 -147 -148 -149 -150 
0.00/0.03	v -151 -152 -153 -154  155 -156 -157 -158 -159 -160 
0.00/0.03	v -161 -162 -163 -164 -165 -166 -167 -168 -169 -170 
0.00/0.03	v -171 -172 -173 -174 -175 -176 -177 -178 -179 -180 
0.00/0.03	v  181 -182 -183 -184 -185 -186 -187 -188 -189 -190 
0.00/0.03	v -191 -192 -193 -194 -195 -196 -197 -198 -199 -200 
0.00/0.03	v -201 -202 -203 -204 -205 -206  207 -208 -209 -210 
0.00/0.03	v -211 -212 -213 -214 -215 -216 -217 -218 -219 -220 
0.00/0.03	v -221 -222 -223 -224 -225 -226 -227 -228 -229 -230 
0.00/0.03	v -231 -232  233 -234 -235 -236 -237 -238 -239 -240 
0.00/0.03	v -241 -242 -243 -244 -245 -246 -247 -248 -249 -250 
0.00/0.03	v -251 -252 -253 -254 -255 -256 -257 -258  259 -260 
0.00/0.03	v -261 -262 -263 -264 -265 -266 -267 -268 -269 -270 
0.00/0.03	v -271 -272 -273 -274 -275 -276 -277 -278 -279 -280 
0.00/0.03	v -281 -282 -283 -284  285 -286 -287 -288 -289 -290 
0.00/0.03	v -291 -292 -293 -294 -295 -296 -297 -298 -299 -300 
0.00/0.03	v -301 -302 -303 -304 -305 -306 -307 -308 -309 -310 
0.00/0.03	v  311 -312 -313 -314 -315 -316 -317 -318 -319 -320 
0.00/0.03	v -321 -322 -323 -324 -325 -326 -327 -328 -329 -330 
0.00/0.03	v -331 -332 -333 -334 -335 -336  337 -338 -339 -340 
0.00/0.03	v -341 -342 -343 -344 -345 -346 -347 -348 -349 -350 
0.00/0.03	v -351 -352 -353 -354 -355 -356 -357 -358 -359 -360 
0.00/0.03	v -361 -362  363 -364 -365 -366 -367 -368 -369 -370 
0.00/0.03	v -371 -372 -373 -374 -375 -376 -377 -378 -379 -380 
0.00/0.03	v -381 -382 -383 -384 -385 -386 -387 -388  389 -390 
0.00/0.03	v -391 -392 -393 -394 -395 -396 -397 -398 -399 -400 
0.00/0.03	v -401 -402 -403 -404 -405 -406 -407 -408 -409 -410 
0.00/0.03	v -411 -412 -413 -414  415 -416 -417 -418 -419 -420 
0.00/0.03	v -421 -422 -423 -424 -425 -426 -427 -428 -429 -430 
0.00/0.03	v -431 -432 -433 -434 -435 -436 -437 -438 -439 -440 
0.00/0.03	v  441 -442 -443 -444 -445 -446 -447 -448 -449 -450 
0.00/0.03	v -451 -452 -453 -454 -455 -456 -457 -458 -459 -460 
0.00/0.03	v -461 -462 -463 -464 -465 -466  467 -468 -469 -470 
0.00/0.03	v -471 -472 -473 -474 -475 -476 -477 -478 -479 -480 
0.00/0.03	v -481 -482 -483 -484 -485 -486 -487 -488 -489 -490 
0.00/0.03	v -491 -492  493 -494 -495 -496 -497 -498 -499 -500 
0.00/0.03	v -501 -502 -503 -504 -505 -506 -507 -508 -509 -510 
0.00/0.03	v -511 -512 -513 -514 -515 -516 -517 -518  519 -520 
0.00/0.03	v -521 -522 -523 -524 -525 -526 -527 -528 -529 -530 
0.00/0.03	v -531 -532 -533 -534 -535 -536 -537 -538 -539 -540 
0.00/0.03	v -541 -542 -543 -544  545 -546 -547 -548 -549 -550 
0.00/0.03	v -551 -552 -553 -554 -555 -556 -557 -558 -559 -560 
0.00/0.03	v -561 -562 -563 -564 -565 -566 -567 -568 -569 -570 
0.00/0.03	v  571 -572 -573 -574 -575 -576 -577 -578 -579 -580 
0.00/0.03	v -581 -582 -583 -584 -585 -586 -587 -588 -589 -590 
0.00/0.03	v -591 -592 -593 -594 -595 -596  597 -598 -599 -600 
0.00/0.03	v -601 -602 -603 -604 -605 -606 -607 -608 -609 -610 
0.00/0.03	v -611 -612 -613 -614 -615 -616 -617 -618 -619 -620 
0.00/0.03	v -621 -622  623 -624 -625 -626 -627 -628 -629 -630 
0.00/0.03	v -631 -632 -633 -634 -635 -636 -637 -638 -639 -640 
0.00/0.03	v -641 -642 -643 -644 -645 -646 -647 -648  649 -650 
0.00/0.03	v -651 -652 -653 -654 -655 -656 -657 -658 -659 -660 
0.00/0.03	v -661 -662 -663 -664 -665 -666 -667 -668 -669 -670 
0.00/0.03	v -671 -672 -673 -674 -675 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-1734281-1240795684/watcher-1734281-1240795684 -o /tmp/evaluation-result-1734281-1240795684/solver-1734281-1240795684 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/CirCUs HOME/instance-1734281-1240795684.cnf -t 1200 

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: 0.93 1.00 0.99 3/64 28435
/proc/meminfo: memFree=1723296/2055920 swapFree=4181888/4192956
[pid=28435] ppid=28433 vsize=1580 CPUtime=0
/proc/28435/stat : 28435 (CirCUs) R 28433 28435 27959 0 -1 4194304 181 0 0 0 0 0 0 0 18 0 1 120000 107601698 1617920 167 1992294400 134512640 135224549 4294956208 18446744073709551615 134726486 0 0 4096 8192 0 0 0 17 1 0 0
/proc/28435/statm: 395 171 70 173 0 220 0

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

Child status: 0
Real time (s): 0.0303391
CPU time (s): 0.029994
CPU user time (s): 0.028995
CPU system time (s): 0.000999
CPU usage (%): 98.8626
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.028995
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 400
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 node18 at 2009-04-27 03:28:04
IDJOB=1734281
IDBENCH=71203
IDSOLVER=544
FILE ID=node18/1734281-1240795684
PBS_JOBID= 9187361
Free space on /tmp= 66148 MiB

SOLVER NAME= CircUs 2009-03-23
BENCH NAME= SAT09/CRAFTED/sgi/satsgi-n25himBHm27-p0-q251.cnf
COMMAND LINE= HOME/CirCUs BENCHNAME -t TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1734281-1240795684/watcher-1734281-1240795684 -o /tmp/evaluation-result-1734281-1240795684/solver-1734281-1240795684 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/CirCUs HOME/instance-1734281-1240795684.cnf -t 1200

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

MD5SUM BENCH= 741e1de0c22ee8d0ee067ccd7623ed63
RANDOM SEED=1234758580

node18.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		: 3000.280
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		: 3000.280
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:       1723712 kB
Buffers:         48820 kB
Cached:         221676 kB
SwapCached:       4972 kB
Active:          95604 kB
Inactive:       182760 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1723712 kB
SwapTotal:     4192956 kB
SwapFree:      4181888 kB
Dirty:            1540 kB
Writeback:           0 kB
Mapped:          14004 kB
Slab:            39864 kB
Committed_AS:   455312 kB
PageTables:       1372 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= 66144 MiB
End job on node18 at 2009-04-27 03:28:04