Trace number 1734163

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_nn nnSAT 0.367943 0.368495

General information on the benchmark

NameCRAFTED/sgi/
satsgi-n22himBHm24-p0-q209.cnf
MD5SUM819d325f2cd8bd4828e82817a7e2248d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.006998
Satisfiable
(Un)Satisfiability was proved
Number of variables528
Number of clauses11638
Sum of the clauses size23760
Maximum clause length24
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 211616
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 522

Solver Data 

0.01/0.05	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.01/0.05	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.01/0.05	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.01/0.05	c main()::
0.01/0.05	c initFormula():: searching for DIMACS p-line....
0.01/0.05	c full lookahead due to high density!
0.01/0.05	c initFormula():: the DIMACS p-line indicates a CNF of 528 variables and 11638 clauses.
0.01/0.05	c parseCNF():: parsing....
0.01/0.05	c parseCNF():: the CNF contains 0 unary clauses.
0.01/0.05	c runParser():: parsing was successful, warming up engines...
0.01/0.05	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.01/0.05	c preprocessing fase I completed:: there are now 528 free variables and 11638 clauses.
0.01/0.05	c stat :: sign balance is biased by 41.943
0.01/0.05	c using k-SAT heuristics (size based diff)
0.01/0.05	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.01/0.05	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.01/0.05	c main():: clause / variable ratio: ( 11638 / 528 ) = 22.04
0.01/0.05	c longest clause has size 24
0.01/0.05	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.01/0.05	c number of free variables = 528
0.01/0.05	c dynamic_preselect_setsize :: off
0.01/0.05	c main():: all systems go!
0.01/0.05	c |----------------------------------------------------------------|
0.29/0.36	c |000000000000000000000000000000000000000000000000000000000000000|
0.29/0.36	
c |
0.29/0.36	c
0.29/0.36	c main():: nodeCount: 335
0.29/0.36	c main():: dead ends in main: 0
0.29/0.36	c main():: lookAheadCount: 18934
0.29/0.36	c main():: unitResolveCount: 528
0.29/0.36	c main():: time=0.360000
0.29/0.36	c main():: necessary_assignments: 0
0.29/0.36	c main():: bin_sat: 0, bin_unsat 0
0.29/0.36	c main():: doublelook: #: 4048, succes #: 0
0.29/0.36	c main():: doublelook: overall 21.380 of all possible doublelooks executed
0.29/0.36	c main():: doublelook: succesrate: 0.000, average DL_trigger: 1.297
0.29/0.36	c main():: SOLUTION VERIFIED :-)
0.29/0.36	s SATISFIABLE
0.29/0.36	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 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-1734163-1240795668/watcher-1734163-1240795668 -o /tmp/evaluation-result-1734163-1240795668/solver-1734163-1240795668 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1734163-1240795668.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: 0.93 0.98 0.99 3/64 25391
/proc/meminfo: memFree=1747016/2055920 swapFree=4181732/4192956
[pid=25391] ppid=25389 vsize=968 CPUtime=0
/proc/25391/stat : 25391 (march_nn) R 25389 25391 24546 0 -1 4194304 123 0 0 0 0 0 0 0 18 0 1 0 107594312 991232 108 1992294400 134512640 135197250 4294956224 18446744073709551615 134718462 0 0 4096 0 0 0 0 17 1 0 0
/proc/25391/statm: 242 109 58 167 0 73 0

[startup+0.0178979 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 25391
/proc/meminfo: memFree=1747016/2055920 swapFree=4181732/4192956
[pid=25391] ppid=25389 vsize=1632 CPUtime=0.01
/proc/25391/stat : 25391 (march_nn) R 25389 25391 24546 0 -1 4194304 231 0 0 0 1 0 0 0 18 0 1 0 107594312 1671168 214 1992294400 134512640 135197250 4294956224 18446744073709551615 134713095 0 0 4096 0 0 0 0 17 1 0 0
/proc/25391/statm: 408 214 65 167 0 239 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1632

[startup+0.101901 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 25391
/proc/meminfo: memFree=1747016/2055920 swapFree=4181732/4192956
[pid=25391] ppid=25389 vsize=2688 CPUtime=0.09
/proc/25391/stat : 25391 (march_nn) R 25389 25391 24546 0 -1 4194304 668 0 0 0 9 0 0 0 18 0 1 0 107594312 2752512 334 1992294400 134512640 135197250 4294956224 18446744073709551615 134539272 0 0 4096 0 0 0 0 17 1 0 0
/proc/25391/statm: 672 334 90 167 0 503 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2688

[startup+0.301916 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 25391
/proc/meminfo: memFree=1747016/2055920 swapFree=4181732/4192956
[pid=25391] ppid=25389 vsize=2832 CPUtime=0.29
/proc/25391/stat : 25391 (march_nn) R 25389 25391 24546 0 -1 4194304 675 0 0 0 29 0 0 0 20 0 1 0 107594312 2899968 341 1992294400 134512640 135197250 4294956224 18446744073709551615 134697286 0 0 4096 0 0 0 0 17 1 0 0
/proc/25391/statm: 708 341 90 167 0 539 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2832

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

Child status: 10
Real time (s): 0.368495
CPU time (s): 0.367943
CPU user time (s): 0.364944
CPU system time (s): 0.002999
CPU usage (%): 99.8502
Max. virtual memory (cumulated for all children) (KiB): 2832

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.364944
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= 689
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 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node52 at 2009-04-27 03:27:48
IDJOB=1734163
IDBENCH=71181
IDSOLVER=522
FILE ID=node52/1734163-1240795668
PBS_JOBID= 9187330
Free space on /tmp= 66232 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/CRAFTED/sgi/satsgi-n22himBHm24-p0-q209.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1734163-1240795668/watcher-1734163-1240795668 -o /tmp/evaluation-result-1734163-1240795668/solver-1734163-1240795668 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1734163-1240795668.cnf

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

MD5SUM BENCH= 819d325f2cd8bd4828e82817a7e2248d
RANDOM SEED=1954961586

node52.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		: 3000.214
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		: 3000.214
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:       1747496 kB
Buffers:         30296 kB
Cached:         199592 kB
SwapCached:       5120 kB
Active:          47104 kB
Inactive:       190708 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1747496 kB
SwapTotal:     4192956 kB
SwapFree:      4181732 kB
Dirty:            1112 kB
Writeback:           0 kB
Mapped:          13976 kB
Slab:            56556 kB
Committed_AS:   451196 kB
PageTables:       1476 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= 66232 MiB
End job on node52 at 2009-04-27 03:27:49