Trace number 1736163

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 0.681896 0.682872

General information on the benchmark

NameCRAFTED/sgi/
sgi-difficult4.cnf
MD5SUM7c37bfaa2d3bc1d2ca8c28e73d9bfb79
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007998
Satisfiable
(Un)Satisfiability was proved
Number of variables483
Number of clauses15156
Sum of the clauses size30753
Maximum clause length23
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 215135
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 521

Solver Data 

0.00/0.06	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.06	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.06	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.06	c main()::
0.00/0.06	c initFormula():: searching for DIMACS p-line....
0.00/0.06	c full lookahead due to high density!
0.00/0.06	c initFormula():: the DIMACS p-line indicates a CNF of 483 variables and 15156 clauses.
0.00/0.06	c parseCNF():: parsing....
0.00/0.06	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.06	c runParser():: parsing was successful, warming up engines...
0.00/0.06	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.06	c preprocessing fase I completed:: there are now 483 free variables and 15156 clauses.
0.00/0.06	c stat :: sign balance is biased by 60.562
0.00/0.06	c using k-SAT heuristics (size based diff)
0.00/0.06	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.06	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.06	c main():: clause / variable ratio: ( 15156 / 483 ) = 31.38
0.00/0.06	c longest clause has size 23
0.00/0.06	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.06	c number of free variables = 483
0.00/0.06	c dynamic_preselect_setsize :: off
0.00/0.06	c main():: all systems go!
0.00/0.06	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/999) NodeCount: 159
0.29/0.35	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
0.59/0.68	c |001000000000000000000000000000000000000000000000000000000000000|
0.59/0.68	
c |************************************************
0.59/0.68	c
0.59/0.68	c main():: nodeCount: 632
0.59/0.68	c main():: dead ends in main: 2
0.59/0.68	c main():: lookAheadCount: 39864
0.59/0.68	c main():: unitResolveCount: 1250
0.59/0.68	c main():: time=0.670000
0.59/0.68	c main():: necessary_assignments: 27
0.59/0.68	c main():: bin_sat: 0, bin_unsat 0
0.59/0.68	c main():: doublelook: #: 6645, succes #: 2
0.59/0.68	c main():: doublelook: overall 16.675 of all possible doublelooks executed
0.59/0.68	c main():: doublelook: succesrate: 0.030, average DL_trigger: 1.275
0.59/0.68	c main():: SOLUTION VERIFIED :-)
0.59/0.68	s SATISFIABLE
0.59/0.68	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 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-1736163-1240810586/watcher-1736163-1240810586 -o /tmp/evaluation-result-1736163-1240810586/solver-1736163-1240810586 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1736163-1240810586.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 3/64 30176
/proc/meminfo: memFree=1608136/2055920 swapFree=4180724/4192956
[pid=30176] ppid=30174 vsize=968 CPUtime=0
/proc/30176/stat : 30176 (march_nn) R 30174 30176 29930 0 -1 4194304 126 0 0 0 0 0 0 0 18 0 1 0 109092108 991232 111 1992294400 134512640 135197250 4294956224 18446744073709551615 134697286 0 0 4096 0 0 0 0 17 1 0 0
/proc/30176/statm: 242 111 58 167 0 73 0

[startup+0.080513 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30176
/proc/meminfo: memFree=1608136/2055920 swapFree=4180724/4192956
[pid=30176] ppid=30174 vsize=3060 CPUtime=0.07
/proc/30176/stat : 30176 (march_nn) R 30174 30176 29930 0 -1 4194304 903 0 0 0 7 0 0 0 18 0 1 0 109092108 3133440 378 1992294400 134512640 135197250 4294956224 18446744073709551615 134524864 0 0 4096 0 0 0 0 17 1 0 0
/proc/30176/statm: 765 378 90 167 0 596 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 3060

[startup+0.102515 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30176
/proc/meminfo: memFree=1608136/2055920 swapFree=4180724/4192956
[pid=30176] ppid=30174 vsize=3060 CPUtime=0.09
/proc/30176/stat : 30176 (march_nn) R 30174 30176 29930 0 -1 4194304 903 0 0 0 9 0 0 0 18 0 1 0 109092108 3133440 378 1992294400 134512640 135197250 4294956224 18446744073709551615 134539309 0 0 4096 0 0 0 0 17 1 0 0
/proc/30176/statm: 765 378 90 167 0 596 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3060

[startup+0.302538 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30176
/proc/meminfo: memFree=1608136/2055920 swapFree=4180724/4192956
[pid=30176] ppid=30174 vsize=3060 CPUtime=0.29
/proc/30176/stat : 30176 (march_nn) R 30174 30176 29930 0 -1 4194304 903 0 0 0 29 0 0 0 19 0 1 0 109092108 3133440 378 1992294400 134512640 135197250 4294956224 18446744073709551615 134550651 0 0 4096 0 0 0 0 17 1 0 0
/proc/30176/statm: 765 378 90 167 0 596 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3060

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

[startup+0.501562 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30176
/proc/meminfo: memFree=1608136/2055920 swapFree=4180724/4192956
[pid=30176] ppid=30174 vsize=3072 CPUtime=0.49
/proc/30176/stat : 30176 (march_nn) R 30174 30176 29930 0 -1 4194304 920 0 0 0 49 0 0 0 21 0 1 0 109092108 3145728 395 1992294400 134512640 135197250 4294956224 18446744073709551615 134524862 0 0 4096 0 0 0 0 17 1 0 0
/proc/30176/statm: 768 395 93 167 0 599 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 3072

[startup+0.601573 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30176
/proc/meminfo: memFree=1608136/2055920 swapFree=4180724/4192956
[pid=30176] ppid=30174 vsize=3208 CPUtime=0.59
/proc/30176/stat : 30176 (march_nn) R 30174 30176 29930 0 -1 4194304 923 0 0 0 59 0 0 0 21 0 1 0 109092108 3284992 398 1992294400 134512640 135197250 4294956224 18446744073709551615 134524938 0 0 4096 0 0 0 0 17 1 0 0
/proc/30176/statm: 802 398 93 167 0 633 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 3208

Child status: 10
Real time (s): 0.682872
CPU time (s): 0.681896
CPU user time (s): 0.675897
CPU system time (s): 0.005999
CPU usage (%): 99.8571
Max. virtual memory (cumulated for all children) (KiB): 3208

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.675897
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 930
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= 3

runsolver used 0.003999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node23 at 2009-04-27 07:36:26
IDJOB=1736163
IDBENCH=71616
IDSOLVER=522
FILE ID=node23/1736163-1240810586
PBS_JOBID= 9187440
Free space on /tmp= 66320 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/CRAFTED/sgi/sgi-difficult4.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1736163-1240810586/watcher-1736163-1240810586 -o /tmp/evaluation-result-1736163-1240810586/solver-1736163-1240810586 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1736163-1240810586.cnf

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

MD5SUM BENCH= 7c37bfaa2d3bc1d2ca8c28e73d9bfb79
RANDOM SEED=376123938

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:       1608552 kB
Buffers:         59500 kB
Cached:         330276 kB
SwapCached:       6256 kB
Active:         159188 kB
Inactive:       239204 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1608552 kB
SwapTotal:     4192956 kB
SwapFree:      4180724 kB
Dirty:             944 kB
Writeback:           0 kB
Mapped:          14064 kB
Slab:            34996 kB
Committed_AS:   481728 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 07:36:27