Trace number 298633

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 CRAFTEDSAT 3.40748 3.41079

General information on the benchmark

Namerandom/OnTreshold/3SAT/v360/
unif-k3-r4.26-v360-c1533-S2109173872-19.SAT.shuffled.cnf
MD5SUMb65fe61c0cbfeaf475aa58cd1690d41f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.019996
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1533
Sum of the clauses size4599
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31533
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

3.38/3.40	c run March_dl for 5 seconds ... 
3.38/3.40	c Bin: Executing march_dl
3.38/3.40	c child exited successfully
3.38/3.40	c march_dl returned code 10.
3.38/3.40	c main():: ***                                   [ march satisfiability solver ]                                   ***
3.38/3.40	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
3.38/3.40	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
3.38/3.40	c main()::
3.38/3.40	c initFormula():: searching for DIMACS p-line....
3.38/3.40	c initFormula():: the DIMACS p-line indicates a CNF of 360 variables and 1533 clauses.
3.38/3.40	c parseCNF():: parsing....
3.38/3.40	c parseCNF():: the CNF contains 0 unary clauses.
3.38/3.40	c runParser():: parsing was successful, warming up engines...
3.38/3.40	c simplify_formula():: removed 0 tautological, 12 satisfied and 0 duplicate clauses
3.38/3.40	c preprocessing fase I completed:: there are now 358 free variables and 1521 clauses.
3.38/3.40	c shorten_equivalence(): average equivalence length reduced from nan to nan
3.38/3.40	c doublelook_init():: 90% succes rate goal.
3.38/3.41	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
3.38/3.41	c lessRedundantTransformation():: nothing to be done.
3.38/3.41	c transformTo3SAT():: you gave me 360 variables and 1521 clauses.
3.38/3.41	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
3.38/3.41	c transformTo3SAT():: CHAINPLUS defined.
3.38/3.41	c transformTo3SAT():: I will add 0 variables and 0 clauses!
3.38/3.41	c transformTo3SAT():: the transformation yielded 360 variabels and 1521 clauses.
3.38/3.41	c main():: clause / variable ratio: ( 1521 / 360 ) = 4.22
3.38/3.41	c doublelook_init():: 90% succes rate goal.
3.38/3.41	c AddTernaryResolvents(): ternary clauses increased from 1521 to 1607
3.38/3.41	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
3.38/3.41	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
3.38/3.41	c check_ternary_clause_density :: high
3.38/3.41	c root full lookahead
3.38/3.41	c freevars: 358, independend: 358, ternary clauses: 1607 
3.38/3.41	c main():: all systems go!
3.38/3.41	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |****
3.38/3.41	c
3.38/3.41	c main():: nodeCount: 14477
3.38/3.41	c main():: dead ends in main: 395
3.38/3.41	c main():: lookAheadCount: 865988
3.38/3.41	c main():: unitResolveCount: 185459
3.38/3.41	c main():: time=3.400000
3.38/3.41	c main():: necessary_assignments: 5629
3.38/3.41	c main():: bin_sat: 0, bin_unsat 0
3.38/3.41	c main():: doublelook: #: 19333, succes #: 17378
3.38/3.41	c main():: doublelook: succesrate: 89.888, threshold: 0.236 * nrofvars
3.38/3.41	c main():: SOLUTION VERIFIED :-)
3.38/3.41	s SATISFIABLE
3.38/3.41	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 0
3.38/3.41	c SATZILLA_TIME=3.400000

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/node70/watcher-298633-1171858839 -o ROOT/results/node70/solver-298633-1171858839 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/298633-1171858839/SATzilla2007_C /tmp/evaluation/298633-1171858839/instance-298633-1171858839.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: 0.99 0.98 0.99 3/64 17887
/proc/meminfo: memFree=417048/2055920 swapFree=4183276/4192956
[pid=17887] ppid=17885 vsize=1440 CPUtime=0
/proc/17887/stat : 17887 (SATzilla2007_C) R 17885 17887 16712 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 168684596 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216547 0 0 4096 0 0 0 0 17 1 0 0
/proc/17887/statm: 360 110 95 260 0 84 0
[pid=17888] ppid=17887 vsize=772 CPUtime=0
/proc/17888/stat : 17888 (march_dl) R 17887 17887 16712 0 -1 4194304 108 0 0 0 0 0 0 0 18 0 1 0 168684596 790528 100 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134544567 0 0 8392704 0 0 0 0 17 1 0 0
/proc/17888/statm: 193 100 53 118 0 72 0

[startup+0.106733 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 17887
/proc/meminfo: memFree=417048/2055920 swapFree=4183276/4192956
[pid=17887] ppid=17885 vsize=1440 CPUtime=0
/proc/17887/stat : 17887 (SATzilla2007_C) S 17885 17887 16712 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 168684596 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/17887/statm: 360 110 95 260 0 84 0
[pid=17888] ppid=17887 vsize=1108 CPUtime=0.1
/proc/17888/stat : 17888 (march_dl) R 17887 17887 16712 0 -1 4194304 215 0 0 0 10 0 0 0 19 0 1 0 168684596 1134592 207 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134527803 0 0 8392704 0 0 0 0 17 1 0 0
/proc/17888/statm: 277 207 74 118 0 156 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2548

[startup+0.514805 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 17887
/proc/meminfo: memFree=417048/2055920 swapFree=4183276/4192956
[pid=17887] ppid=17885 vsize=1440 CPUtime=0
/proc/17887/stat : 17887 (SATzilla2007_C) S 17885 17887 16712 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 168684596 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/17887/statm: 360 110 95 260 0 84 0
[pid=17888] ppid=17887 vsize=1108 CPUtime=0.51
/proc/17888/stat : 17888 (march_dl) R 17887 17887 16712 0 -1 4194304 225 0 0 0 51 0 0 0 23 0 1 0 168684596 1134592 217 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134526942 0 0 8392704 0 0 0 0 17 1 0 0
/proc/17888/statm: 277 217 74 118 0 156 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2548

[startup+1.33495 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 17889
/proc/meminfo: memFree=416264/2055920 swapFree=4183276/4192956
[pid=17887] ppid=17885 vsize=1440 CPUtime=0
/proc/17887/stat : 17887 (SATzilla2007_C) S 17885 17887 16712 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 168684596 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/17887/statm: 360 110 95 260 0 84 0
[pid=17888] ppid=17887 vsize=1108 CPUtime=1.33
/proc/17888/stat : 17888 (march_dl) R 17887 17887 16712 0 -1 4194304 233 0 0 0 133 0 0 0 25 0 1 0 168684596 1134592 225 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134565173 0 0 8392704 0 0 0 0 17 1 0 0
/proc/17888/statm: 277 225 74 118 0 156 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2548

[startup+2.97125 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 17889
/proc/meminfo: memFree=416136/2055920 swapFree=4183276/4192956
[pid=17887] ppid=17885 vsize=1440 CPUtime=0
/proc/17887/stat : 17887 (SATzilla2007_C) S 17885 17887 16712 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 168684596 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/17887/statm: 360 110 95 260 0 84 0
[pid=17888] ppid=17887 vsize=1240 CPUtime=2.96
/proc/17888/stat : 17888 (march_dl) R 17887 17887 16712 0 -1 4194304 239 0 0 0 296 0 0 0 25 0 1 0 168684596 1269760 231 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134514049 0 0 8392704 0 0 0 0 17 1 0 0
/proc/17888/statm: 310 231 74 118 0 189 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 2680

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

[startup+3.2803 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 17889
/proc/meminfo: memFree=416136/2055920 swapFree=4183276/4192956
[pid=17887] ppid=17885 vsize=1440 CPUtime=0
/proc/17887/stat : 17887 (SATzilla2007_C) S 17885 17887 16712 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 168684596 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/17887/statm: 360 110 95 260 0 84 0
[pid=17888] ppid=17887 vsize=1240 CPUtime=3.27
/proc/17888/stat : 17888 (march_dl) R 17887 17887 16712 0 -1 4194304 239 0 0 0 327 0 0 0 25 0 1 0 168684596 1269760 231 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134564364 0 0 8392704 0 0 0 0 17 1 0 0
/proc/17888/statm: 310 231 74 118 0 189 0
Current children cumulated CPU time (s) 3.27
Current children cumulated vsize (KiB) 2680

[startup+3.38332 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 17889
/proc/meminfo: memFree=416008/2055920 swapFree=4183276/4192956
[pid=17887] ppid=17885 vsize=1440 CPUtime=0
/proc/17887/stat : 17887 (SATzilla2007_C) S 17885 17887 16712 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 168684596 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/17887/statm: 360 110 95 260 0 84 0
[pid=17888] ppid=17887 vsize=1240 CPUtime=3.38
/proc/17888/stat : 17888 (march_dl) R 17887 17887 16712 0 -1 4194304 240 0 0 0 338 0 0 0 25 0 1 0 168684596 1269760 232 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134532120 0 0 8392704 0 0 0 0 17 1 0 0
/proc/17888/statm: 310 232 74 118 0 189 0
Current children cumulated CPU time (s) 3.38
Current children cumulated vsize (KiB) 2680

Child status: 10
Real time (s): 3.41079
CPU time (s): 3.40748
CPU user time (s): 3.40548
CPU system time (s): 0.001999
CPU usage (%): 99.903
Max. virtual memory (cumulated for all children) (KiB): 2680

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.40548
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= 399
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= 12
involuntary context switches= 9

runsolver used 0.003999 second user time and 0.013997 second system time

The end

Launcher Data (download as text)

Begin job on node70 on Mon Feb 19 04:20:39 UTC 2007

IDJOB= 298633
IDBENCH= 19990
IDSOLVER= 135
FILE ID= node70/298633-1171858839

PBS_JOBID= 3839741

Free space on /tmp= 66556 MiB

SOLVER NAME= SATzilla CRAFTED
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v360/unif-k3-r4.26-v360-c1533-S2109173872-19.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/298633-1171858839/SATzilla2007_C /tmp/evaluation/298633-1171858839/instance-298633-1171858839.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node70/watcher-298633-1171858839 -o ROOT/results/node70/solver-298633-1171858839 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/298633-1171858839/SATzilla2007_C /tmp/evaluation/298633-1171858839/instance-298633-1171858839.cnf            

META MD5SUM SOLVER= a1f00d13cbb558b34a83b365ff80fcc3
MD5SUM BENCH=  b65fe61c0cbfeaf475aa58cd1690d41f

RANDOM SEED= 789720916

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node70.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		: 3000.261
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		: 3000.261
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:        417392 kB
Buffers:         49960 kB
Cached:        1463536 kB
SwapCached:       4060 kB
Active:         836368 kB
Inactive:       687548 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        417392 kB
SwapTotal:     4192956 kB
SwapFree:      4183276 kB
Dirty:            8536 kB
Writeback:           0 kB
Mapped:          15844 kB
Slab:           100644 kB
Committed_AS:   230784 kB
PageTables:       1396 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 node70 on Mon Feb 19 04:20:43 UTC 2007