Trace number 299739

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, and are wall clock time (not CPU 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
SATzilla RANDOMSAT 0.720889 0.722845

General information on the benchmark

Namerandom/OnTreshold/3SAT/v400/
unif-k3-r4.26-v400-c1704-S1752604460-10.SAT.shuffled.cnf
MD5SUM26af42426194a43df413cae8f2aea334
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05599
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1704
Sum of the clauses size5112
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31704
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.71/0.72	c run March_dl for 5 seconds ... 
0.71/0.72	c Bin: Executing march_dl
0.71/0.72	c child exited successfully
0.71/0.72	c march_dl returned code 10.
0.71/0.72	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.71/0.72	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.71/0.72	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.71/0.72	c main()::
0.71/0.72	c initFormula():: searching for DIMACS p-line....
0.71/0.72	c initFormula():: the DIMACS p-line indicates a CNF of 400 variables and 1704 clauses.
0.71/0.72	c parseCNF():: parsing....
0.71/0.72	c parseCNF():: the CNF contains 0 unary clauses.
0.71/0.72	c runParser():: parsing was successful, warming up engines...
0.71/0.72	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.71/0.72	c preprocessing fase I completed:: there are now 400 free variables and 1704 clauses.
0.71/0.72	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.71/0.72	c doublelook_init():: 90% succes rate goal.
0.71/0.72	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
0.71/0.72	c lessRedundantTransformation():: nothing to be done.
0.71/0.72	c transformTo3SAT():: you gave me 400 variables and 1704 clauses.
0.71/0.72	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.71/0.72	c transformTo3SAT():: CHAINPLUS defined.
0.71/0.72	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.71/0.72	c transformTo3SAT():: the transformation yielded 400 variabels and 1704 clauses.
0.71/0.72	c main():: clause / variable ratio: ( 1704 / 400 ) = 4.26
0.71/0.72	c doublelook_init():: 90% succes rate goal.
0.71/0.72	c AddTernaryResolvents(): ternary clauses increased from 1704 to 1798
0.71/0.72	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
0.71/0.72	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.71/0.72	c check_ternary_clause_density :: high
0.71/0.72	c root full lookahead
0.71/0.72	c freevars: 400, independend: 400, ternary clauses: 1798 
0.71/0.72	c main():: all systems go!
0.71/0.72	c |----------------------------------------------------------------|
c |
0.71/0.72	c
0.71/0.72	c main():: nodeCount: 2571
0.71/0.72	c main():: dead ends in main: 56
0.71/0.72	c main():: lookAheadCount: 178570
0.71/0.72	c main():: unitResolveCount: 37355
0.71/0.72	c main():: time=0.710000
0.71/0.72	c main():: necessary_assignments: 1373
0.71/0.72	c main():: bin_sat: 0, bin_unsat 0
0.71/0.72	c main():: doublelook: #: 3393, succes #: 3034
0.71/0.72	c main():: doublelook: succesrate: 89.419, threshold: 0.234 * nrofvars
0.71/0.72	c main():: SOLUTION VERIFIED :-)
0.71/0.72	s SATISFIABLE
0.71/0.72	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 0
0.71/0.72	c SATZILLA_TIME=0.710000

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node29/watcher-299739-1171876878 -o ROOT/results/node29/solver-299739-1171876878 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/299739-1171876878/SATzilla2007_R /tmp/evaluation/299739-1171876878/instance-299739-1171876878.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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 3/77 973
/proc/meminfo: memFree=740648/2055920 swapFree=4147432/4192956
[pid=973] ppid=971 vsize=1440 CPUtime=0
/proc/973/stat : 973 (SATzilla2007_R) R 971 973 26081 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 181452103 1474560 110 18446744073709551615 134512640 135579813 4294956624 18446744073709551615 135216547 0 0 4096 0 0 0 0 17 1 0 0
/proc/973/statm: 360 110 95 260 0 84 0
[pid=974] ppid=973 vsize=772 CPUtime=0
/proc/974/stat : 974 (march_dl) R 973 973 26081 0 -1 4194304 111 0 0 0 0 0 0 0 18 0 1 0 181452103 790528 103 18446744073709551615 134512640 134996440 4294956656 18446744073709551615 134617565 0 0 8392704 0 0 0 0 17 1 0 0
/proc/974/statm: 193 103 53 118 0 72 0

[startup+0.107378 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 973
/proc/meminfo: memFree=740648/2055920 swapFree=4147432/4192956
[pid=973] ppid=971 vsize=1440 CPUtime=0
/proc/973/stat : 973 (SATzilla2007_R) S 971 973 26081 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 181452103 1474560 110 18446744073709551615 134512640 135579813 4294956624 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/973/statm: 360 110 95 260 0 84 0
[pid=974] ppid=973 vsize=1144 CPUtime=0.1
/proc/974/stat : 974 (march_dl) R 973 973 26081 0 -1 4194304 229 0 0 0 10 0 0 0 20 0 1 0 181452103 1171456 221 18446744073709551615 134512640 134996440 4294956656 18446744073709551615 134528172 0 0 8392704 0 0 0 0 17 1 0 0
/proc/974/statm: 286 221 74 118 0 165 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2584

[startup+0.515402 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 973
/proc/meminfo: memFree=740648/2055920 swapFree=4147432/4192956
[pid=973] ppid=971 vsize=1440 CPUtime=0
/proc/973/stat : 973 (SATzilla2007_R) S 971 973 26081 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 181452103 1474560 110 18446744073709551615 134512640 135579813 4294956624 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/973/statm: 360 110 95 260 0 84 0
[pid=974] ppid=973 vsize=1144 CPUtime=0.51
/proc/974/stat : 974 (march_dl) R 973 973 26081 0 -1 4194304 240 0 0 0 51 0 0 0 24 0 1 0 181452103 1171456 232 18446744073709551615 134512640 134996440 4294956656 18446744073709551615 134526914 0 0 8392704 0 0 0 0 17 1 0 0
/proc/974/statm: 286 232 74 118 0 165 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2584

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

[startup+0.617408 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 973
/proc/meminfo: memFree=740648/2055920 swapFree=4147432/4192956
[pid=973] ppid=971 vsize=1440 CPUtime=0
/proc/973/stat : 973 (SATzilla2007_R) S 971 973 26081 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 181452103 1474560 110 18446744073709551615 134512640 135579813 4294956624 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/973/statm: 360 110 95 260 0 84 0
[pid=974] ppid=973 vsize=1144 CPUtime=0.61
/proc/974/stat : 974 (march_dl) R 973 973 26081 0 -1 4194304 242 0 0 0 61 0 0 0 25 0 1 0 181452103 1171456 234 18446744073709551615 134512640 134996440 4294956656 18446744073709551615 134528085 0 0 8392704 0 0 0 0 17 1 0 0
/proc/974/statm: 286 234 74 118 0 165 0
Current children cumulated CPU time (s) 0.61
Current children cumulated vsize (KiB) 2584

[startup+0.719415 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 973
/proc/meminfo: memFree=740648/2055920 swapFree=4147432/4192956
[pid=973] ppid=971 vsize=1440 CPUtime=0
/proc/973/stat : 973 (SATzilla2007_R) S 971 973 26081 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 181452103 1474560 110 18446744073709551615 134512640 135579813 4294956624 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/973/statm: 360 110 95 260 0 84 0
[pid=974] ppid=973 vsize=1144 CPUtime=0.71
/proc/974/stat : 974 (march_dl) R 973 973 26081 0 -1 4194304 243 0 0 0 71 0 0 0 25 0 1 0 181452103 1171456 235 18446744073709551615 134512640 134996440 4294956656 18446744073709551615 134526962 0 0 8392704 0 0 0 0 17 1 0 0
/proc/974/statm: 286 235 74 118 0 165 0
Current children cumulated CPU time (s) 0.71
Current children cumulated vsize (KiB) 2584

Child status: 10
Real time (s): 0.722845
CPU time (s): 0.720889
CPU user time (s): 0.71889
CPU system time (s): 0.001999
CPU usage (%): 99.7294
Max. virtual memory (cumulated for all children) (KiB): 2584

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.71889
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 403
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= 13
involuntary context switches= 17

runsolver used 0.000999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node29 on Mon Feb 19 09:21:18 UTC 2007

IDJOB= 299739
IDBENCH= 20017
IDSOLVER= 134
FILE ID= node29/299739-1171876878

PBS_JOBID= 3839662

Free space on /tmp= 66556 MiB

SOLVER NAME= SATzilla RANDOM
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v400/unif-k3-r4.26-v400-c1704-S1752604460-10.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/299739-1171876878/SATzilla2007_R /tmp/evaluation/299739-1171876878/instance-299739-1171876878.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node29/watcher-299739-1171876878 -o ROOT/results/node29/solver-299739-1171876878 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/299739-1171876878/SATzilla2007_R /tmp/evaluation/299739-1171876878/instance-299739-1171876878.cnf            

META MD5SUM SOLVER= 44dcaa7dbf032757655ae5e30ee65a10
MD5SUM BENCH=  26af42426194a43df413cae8f2aea334

RANDOM SEED= 5185309

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node29.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.209
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	: 5931.00
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		: 3000.209
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:        741056 kB
Buffers:         51236 kB
Cached:        1137024 kB
SwapCached:      12280 kB
Active:         846880 kB
Inactive:       364620 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        741056 kB
SwapTotal:     4192956 kB
SwapFree:      4147432 kB
Dirty:            8404 kB
Writeback:           0 kB
Mapped:          30240 kB
Slab:            88744 kB
Committed_AS:   672940 kB
PageTables:       1864 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= 66556 MiB

End job on node29 on Mon Feb 19 09:21:19 UTC 2007