Trace number 1734262

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
march_hi hiSAT 0.499923 0.500481

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 

0.06/0.07	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.06/0.07	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.06/0.07	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.06/0.07	c main()::
0.06/0.07	c initFormula():: searching for DIMACS p-line....
0.06/0.07	c full lookahead due to high density!
0.06/0.07	c initFormula():: the DIMACS p-line indicates a CNF of 675 variables and 16900 clauses.
0.06/0.07	c parseCNF():: parsing....
0.06/0.07	c parseCNF():: the CNF contains 0 unary clauses.
0.06/0.07	c runParser():: parsing was successful, warming up engines...
0.06/0.07	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.06/0.07	c preprocessing fase I completed:: there are now 675 free variables and 16900 clauses.
0.06/0.07	c stat :: sign balance is biased by 47.949
0.06/0.07	c using k-SAT heuristics (size based diff)
0.06/0.07	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.06/0.07	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.06/0.07	c main():: clause / variable ratio: ( 16900 / 675 ) = 25.04
0.06/0.07	c longest clause has size 27
0.06/0.07	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.06/0.07	c number of free variables = 675
0.06/0.07	c dynamic_preselect_setsize :: off
0.06/0.07	c main():: all systems go!
0.06/0.07	c |----------------------------------------------------------------|
0.39/0.49	c |.000000000000000000000000000000000000000000000000000000000000000|
0.39/0.49	
c |
0.39/0.50	c
0.39/0.50	c main():: nodeCount: 431
0.39/0.50	c main():: dead ends in main: 0
0.39/0.50	c main():: lookAheadCount: 24544
0.39/0.50	c main():: unitResolveCount: 675
0.39/0.50	c main():: time=0.490000
0.39/0.50	c main():: necessary_assignments: 0
0.39/0.50	c main():: bin_sat: 0, bin_unsat 0
0.39/0.50	c main():: doublelook: #: 5058, succes #: 0
0.39/0.50	c main():: doublelook: overall 20.608 of all possible doublelooks executed
0.39/0.50	c main():: doublelook: succesrate: 0.000, average DL_trigger: 1.317
0.39/0.50	c main():: SOLUTION VERIFIED :-)
0.39/0.50	s SATISFIABLE
0.39/0.50	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 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-1734262-1240795682/watcher-1734262-1240795682 -o /tmp/evaluation-result-1734262-1240795682/solver-1734262-1240795682 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1734262-1240795682.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: 1.99 1.85 1.45 3/64 26130
/proc/meminfo: memFree=1743592/2055920 swapFree=4180820/4192956
[pid=26130] ppid=26128 vsize=968 CPUtime=0
/proc/26130/stat : 26130 (march_hi) R 26128 26130 25854 0 -1 4194304 131 0 0 0 0 0 0 0 18 0 1 0 107602356 991232 116 1992294400 134512640 135197378 4294956224 18446744073709551615 134718590 0 0 4096 0 0 0 0 17 1 0 0
/proc/26130/statm: 242 117 57 167 0 73 0

[startup+0.0725731 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 26130
/proc/meminfo: memFree=1743592/2055920 swapFree=4180820/4192956
[pid=26130] ppid=26128 vsize=3488 CPUtime=0.06
/proc/26130/stat : 26130 (march_hi) R 26128 26130 25854 0 -1 4194304 1001 0 0 0 6 0 0 0 18 0 1 0 107602356 3571712 408 1992294400 134512640 135197378 4294956224 18446744073709551615 134697414 0 0 4096 0 0 0 0 17 1 0 0
/proc/26130/statm: 872 408 87 167 0 703 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3488

[startup+0.101578 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 26130
/proc/meminfo: memFree=1743592/2055920 swapFree=4180820/4192956
[pid=26130] ppid=26128 vsize=3488 CPUtime=0.09
/proc/26130/stat : 26130 (march_hi) R 26128 26130 25854 0 -1 4194304 1093 0 0 0 9 0 0 0 18 0 1 0 107602356 3571712 408 1992294400 134512640 135197378 4294956224 18446744073709551615 134524866 0 0 4096 0 0 0 0 17 1 0 0
/proc/26130/statm: 872 408 89 167 0 703 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3488

[startup+0.301613 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 26130
/proc/meminfo: memFree=1743592/2055920 swapFree=4180820/4192956
[pid=26130] ppid=26128 vsize=3492 CPUtime=0.29
/proc/26130/stat : 26130 (march_hi) R 26128 26130 25854 0 -1 4194304 1096 0 0 0 29 0 0 0 19 0 1 0 107602356 3575808 411 1992294400 134512640 135197378 4294956224 18446744073709551615 134550680 0 0 4096 0 0 0 0 17 1 0 0
/proc/26130/statm: 873 411 89 167 0 704 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3492

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

[startup+0.401632 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 26130
/proc/meminfo: memFree=1743592/2055920 swapFree=4180820/4192956
[pid=26130] ppid=26128 vsize=3508 CPUtime=0.39
/proc/26130/stat : 26130 (march_hi) R 26128 26130 25854 0 -1 4194304 1102 0 0 0 39 0 0 0 19 0 1 0 107602356 3592192 417 1992294400 134512640 135197378 4294956224 18446744073709551615 134649013 0 0 4096 0 0 0 0 17 1 0 0
/proc/26130/statm: 877 417 89 167 0 708 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 3508

Child status: 10
Real time (s): 0.500481
CPU time (s): 0.499923
CPU user time (s): 0.494924
CPU system time (s): 0.004999
CPU usage (%): 99.8885
Max. virtual memory (cumulated for all children) (KiB): 3508

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.494924
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1121
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= 2

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node2 at 2009-04-27 03:28:02
IDJOB=1734262
IDBENCH=71203
IDSOLVER=521
FILE ID=node2/1734262-1240795682
PBS_JOBID= 9187319
Free space on /tmp= 66316 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/CRAFTED/sgi/satsgi-n25himBHm27-p0-q251.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1734262-1240795682/watcher-1734262-1240795682 -o /tmp/evaluation-result-1734262-1240795682/solver-1734262-1240795682 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1734262-1240795682.cnf

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

MD5SUM BENCH= 741e1de0c22ee8d0ee067ccd7623ed63
RANDOM SEED=886039080

node2.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		: 3000.265
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		: 3000.265
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:       1744072 kB
Buffers:         47932 kB
Cached:         186876 kB
SwapCached:       5980 kB
Active:          67676 kB
Inactive:       175520 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1744072 kB
SwapTotal:     4192956 kB
SwapFree:      4180820 kB
Dirty:            1028 kB
Writeback:           0 kB
Mapped:          14052 kB
Slab:            54640 kB
Committed_AS:   418736 kB
PageTables:       1468 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= 66316 MiB
End job on node2 at 2009-04-27 03:28:03