Trace number 1544877

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
SAT07 reference solver: SATzilla RANDOMSAT 2.11968 2.12165

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/420/
unif-k3-r4.25-v420-c1785-S1940784272-089.cnf
MD5SUMbd1e8bac20c24526524d34ea2c494a05
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015996
Satisfiable
(Un)Satisfiability was proved
Number of variables420
Number of clauses1785
Sum of the clauses size5355
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31785
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

2.10/2.12	c run March_dl for 5 seconds ... 
2.10/2.12	c Bin: Executing march_dl
2.10/2.12	c child exited successfully
2.10/2.12	c march_dl returned code 10.
2.10/2.12	c main():: ***                                   [ march satisfiability solver ]                                   ***
2.10/2.12	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
2.10/2.12	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
2.10/2.12	c main()::
2.10/2.12	c initFormula():: searching for DIMACS p-line....
2.10/2.12	c initFormula():: the DIMACS p-line indicates a CNF of 420 variables and 1785 clauses.
2.10/2.12	c parseCNF():: parsing....
2.10/2.12	c parseCNF():: the CNF contains 0 unary clauses.
2.10/2.12	c runParser():: parsing was successful, warming up engines...
2.10/2.12	c simplify_formula():: removed 0 tautological, 7 satisfied and 0 duplicate clauses
2.10/2.12	c preprocessing fase I completed:: there are now 419 free variables and 1778 clauses.
2.10/2.12	c shorten_equivalence(): average equivalence length reduced from nan to nan
2.10/2.12	c doublelook_init():: 90% succes rate goal.
2.10/2.12	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
2.10/2.12	c lessRedundantTransformation():: nothing to be done.
2.10/2.12	c transformTo3SAT():: you gave me 420 variables and 1778 clauses.
2.10/2.12	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
2.10/2.12	c transformTo3SAT():: CHAINPLUS defined.
2.10/2.12	c transformTo3SAT():: I will add 0 variables and 0 clauses!
2.10/2.12	c transformTo3SAT():: the transformation yielded 420 variabels and 1778 clauses.
2.10/2.12	c main():: clause / variable ratio: ( 1778 / 420 ) = 4.23
2.10/2.12	c doublelook_init():: 90% succes rate goal.
2.10/2.12	c AddTernaryResolvents(): ternary clauses increased from 1778 to 1885
2.10/2.12	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
2.10/2.12	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
2.10/2.12	c check_ternary_clause_density :: high
2.10/2.12	c root full lookahead
2.10/2.12	c freevars: 419, independend: 419, ternary clauses: 1885 
2.10/2.12	c main():: all systems go!
2.10/2.12	c |----------------------------------------------------------------|
c |
2.10/2.12	c
2.10/2.12	c main():: nodeCount: 7470
2.10/2.12	c main():: dead ends in main: 127
2.10/2.12	c main():: lookAheadCount: 518385
2.10/2.12	c main():: unitResolveCount: 96125
2.10/2.12	c main():: time=2.110000
2.10/2.12	c main():: necessary_assignments: 2755
2.10/2.12	c main():: bin_sat: 0, bin_unsat 0
2.10/2.12	c main():: doublelook: #: 12022, succes #: 10805
2.10/2.12	c main():: doublelook: succesrate: 89.877, threshold: 0.209 * nrofvars
2.10/2.12	c main():: SOLUTION VERIFIED :-)
2.10/2.12	s SATISFIABLE
2.10/2.12	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 0
2.10/2.12	c SATZILLA_TIME=2.110000

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-1544877-1238614898/watcher-1544877-1238614898 -o /tmp/evaluation-result-1544877-1238614898/solver-1544877-1238614898 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2007_R HOME/instance-1544877-1238614898.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: 0.99 0.98 0.91 3/64 4477
/proc/meminfo: memFree=1179560/2055920 swapFree=4177016/4192956
[pid=4477] ppid=4475 vsize=1440 CPUtime=0
/proc/4477/stat : 4477 (SATzilla2007_R) S 4475 4477 3973 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1134151870 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/4477/statm: 360 110 95 260 0 84 0
[pid=4478] ppid=4477 vsize=772 CPUtime=0
/proc/4478/stat : 4478 (march_dl) R 4477 4477 3973 0 -1 4194304 114 0 0 0 0 0 0 0 18 0 1 0 1134151870 790528 106 1992294400 134512640 134996440 4294956256 18446744073709551615 134671537 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4478/statm: 193 106 53 118 0 72 0

[startup+0.095844 s]
/proc/loadavg: 0.99 0.98 0.91 3/64 4477
/proc/meminfo: memFree=1179560/2055920 swapFree=4177016/4192956
[pid=4477] ppid=4475 vsize=1440 CPUtime=0
/proc/4477/stat : 4477 (SATzilla2007_R) S 4475 4477 3973 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1134151870 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/4477/statm: 360 110 95 260 0 84 0
[pid=4478] ppid=4477 vsize=1140 CPUtime=0.09
/proc/4478/stat : 4478 (march_dl) R 4477 4477 3973 0 -1 4194304 231 0 0 0 9 0 0 0 18 0 1 0 1134151870 1167360 223 1992294400 134512640 134996440 4294956256 18446744073709551615 134526831 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4478/statm: 285 223 74 118 0 164 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2580

[startup+0.101842 s]
/proc/loadavg: 0.99 0.98 0.91 3/64 4477
/proc/meminfo: memFree=1179560/2055920 swapFree=4177016/4192956
[pid=4477] ppid=4475 vsize=1440 CPUtime=0
/proc/4477/stat : 4477 (SATzilla2007_R) S 4475 4477 3973 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1134151870 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/4477/statm: 360 110 95 260 0 84 0
[pid=4478] ppid=4477 vsize=1140 CPUtime=0.09
/proc/4478/stat : 4478 (march_dl) R 4477 4477 3973 0 -1 4194304 231 0 0 0 9 0 0 0 18 0 1 0 1134151870 1167360 223 1992294400 134512640 134996440 4294956256 18446744073709551615 134514084 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4478/statm: 285 223 74 118 0 164 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2580

[startup+0.301859 s]
/proc/loadavg: 0.99 0.98 0.91 3/64 4477
/proc/meminfo: memFree=1179560/2055920 swapFree=4177016/4192956
[pid=4477] ppid=4475 vsize=1440 CPUtime=0
/proc/4477/stat : 4477 (SATzilla2007_R) S 4475 4477 3973 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1134151870 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/4477/statm: 360 110 95 260 0 84 0
[pid=4478] ppid=4477 vsize=1140 CPUtime=0.29
/proc/4478/stat : 4478 (march_dl) R 4477 4477 3973 0 -1 4194304 241 0 0 0 29 0 0 0 19 0 1 0 1134151870 1167360 233 1992294400 134512640 134996440 4294956256 18446744073709551615 134527881 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4478/statm: 285 233 74 118 0 164 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2580

[startup+0.701894 s]
/proc/loadavg: 0.99 0.98 0.91 3/64 4477
/proc/meminfo: memFree=1179560/2055920 swapFree=4177016/4192956
[pid=4477] ppid=4475 vsize=1440 CPUtime=0
/proc/4477/stat : 4477 (SATzilla2007_R) S 4475 4477 3973 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1134151870 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/4477/statm: 360 110 95 260 0 84 0
[pid=4478] ppid=4477 vsize=1272 CPUtime=0.69
/proc/4478/stat : 4478 (march_dl) R 4477 4477 3973 0 -1 4194304 248 0 0 0 69 0 0 0 22 0 1 0 1134151870 1302528 240 1992294400 134512640 134996440 4294956256 18446744073709551615 134553314 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4478/statm: 318 240 74 118 0 197 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2712

[startup+1.50197 s]
/proc/loadavg: 0.99 0.98 0.91 2/66 4479
/proc/meminfo: memFree=1178712/2055920 swapFree=4177016/4192956
[pid=4477] ppid=4475 vsize=1440 CPUtime=0
/proc/4477/stat : 4477 (SATzilla2007_R) S 4475 4477 3973 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1134151870 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/4477/statm: 360 110 95 260 0 84 0
[pid=4478] ppid=4477 vsize=1272 CPUtime=1.49
/proc/4478/stat : 4478 (march_dl) R 4477 4477 3973 0 -1 4194304 254 0 0 0 149 0 0 0 25 0 1 0 1134151870 1302528 246 1992294400 134512640 134996440 4294956256 18446744073709551615 134564265 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4478/statm: 318 246 74 118 0 197 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2712

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

[startup+1.902 s]
/proc/loadavg: 0.99 0.98 0.91 2/66 4479
/proc/meminfo: memFree=1178712/2055920 swapFree=4177016/4192956
[pid=4477] ppid=4475 vsize=1440 CPUtime=0
/proc/4477/stat : 4477 (SATzilla2007_R) S 4475 4477 3973 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1134151870 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/4477/statm: 360 110 95 260 0 84 0
[pid=4478] ppid=4477 vsize=1272 CPUtime=1.89
/proc/4478/stat : 4478 (march_dl) R 4477 4477 3973 0 -1 4194304 255 0 0 0 189 0 0 0 25 0 1 0 1134151870 1302528 247 1992294400 134512640 134996440 4294956256 18446744073709551615 134526956 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4478/statm: 318 247 74 118 0 197 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 2712

[startup+2.10202 s]
/proc/loadavg: 0.99 0.98 0.91 2/66 4479
/proc/meminfo: memFree=1178584/2055920 swapFree=4177016/4192956
[pid=4477] ppid=4475 vsize=1440 CPUtime=0
/proc/4477/stat : 4477 (SATzilla2007_R) S 4475 4477 3973 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1134151870 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/4477/statm: 360 110 95 260 0 84 0
[pid=4478] ppid=4477 vsize=1272 CPUtime=2.1
/proc/4478/stat : 4478 (march_dl) R 4477 4477 3973 0 -1 4194304 256 0 0 0 210 0 0 0 25 0 1 0 1134151870 1302528 248 1992294400 134512640 134996440 4294956256 18446744073709551615 134528181 0 0 8392704 0 0 0 0 17 1 0 0
/proc/4478/statm: 318 248 74 118 0 197 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 2712

Child status: 10
Real time (s): 2.12165
CPU time (s): 2.11968
CPU user time (s): 2.11668
CPU system time (s): 0.002999
CPU usage (%): 99.9072
Max. virtual memory (cumulated for all children) (KiB): 2712

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.11668
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= 415
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= 5
involuntary context switches= 5

runsolver used 0.004999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node50 at 2009-04-01 21:41:38
IDJOB=1544877
IDBENCH=70666
IDSOLVER=557
FILE ID=node50/1544877-1238614898
PBS_JOBID= 9073594
Free space on /tmp= 64220 MiB

SOLVER NAME= SAT07 reference solver: SATzilla RANDOM
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/420/unif-k3-r4.25-v420-c1785-S1940784272-089.cnf
COMMAND LINE= HOME/SATzilla2007_R BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1544877-1238614898/watcher-1544877-1238614898 -o /tmp/evaluation-result-1544877-1238614898/solver-1544877-1238614898 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2007_R HOME/instance-1544877-1238614898.cnf            

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

MD5SUM BENCH= bd1e8bac20c24526524d34ea2c494a05
RANDOM SEED=59963917

node50.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:       1180104 kB
Buffers:        109216 kB
Cached:         657228 kB
SwapCached:      10184 kB
Active:         246428 kB
Inactive:       531908 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1180104 kB
SwapTotal:     4192956 kB
SwapFree:      4177016 kB
Dirty:            8744 kB
Writeback:           0 kB
Mapped:          17448 kB
Slab:            83508 kB
Committed_AS:  3261116 kB
PageTables:       1456 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= 64212 MiB
End job on node50 at 2009-04-01 21:41:40