Trace number 299970

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
DEWSATZ 2007-02-08SAT 0.618905 0.620823

General information on the benchmark

Namerandom/OnTreshold/3SAT/v400/
unif-k3-r4.26-v400-c1704-S2048803580-17.SAT.shuffled.cnf
MD5SUMfd7d232d07ea82b35604ae65ebcd0d41
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005998
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)

0.61/0.61	c   
0.61/0.61	c =====================================================================================================
0.61/0.61	c Copyright (c) 2004 National ICT Australia Limited (NICTA) and applicable third parties.
0.61/0.61	c For details, see the Australian Public Licence B (OZPLB) V1-1, under which this software is licensed.
0.61/0.61	c The OZPLB text is embedded in the source code for this software.
0.61/0.61	c =====================================================================================================
0.61/0.61	c   
0.61/0.61	c solution of Dew_Satz_1e.c 
0.61/0.61	s SATISFIABLE
0.61/0.61	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 
0.61/0.61	c Dew_Satz_1e /tmp/evaluation/299970-1171880561/instance-299970-1171880561.cnf 1  0.600  0.030 176 176 0 176 211 380838 13265 57808 8704 1820 1820 400 0 400

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/node4/watcher-299970-1171880561 -o ROOT/results/node4/solver-299970-1171880561 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/299970-1171880561/dewSatz /tmp/evaluation/299970-1171880561/instance-299970-1171880561.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: 0.92 0.98 0.99 3/77 29399
/proc/meminfo: memFree=991840/2055920 swapFree=4192812/4192956
[pid=29399] ppid=29397 vsize=690012 CPUtime=0
/proc/29399/stat : 29399 (dewSatz) R 29397 29399 28112 0 -1 4194304 591 0 0 0 0 0 0 0 18 0 1 0 208011053 706572288 85 18446744073709551615 134512640 134923568 4294956624 18446744073709551615 134520528 0 0 4096 0 0 0 0 17 1 0 0
/proc/29399/statm: 172503 85 40 100 0 172400 0

[startup+0.107417 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 29399
/proc/meminfo: memFree=991840/2055920 swapFree=4192812/4192956
[pid=29399] ppid=29397 vsize=690144 CPUtime=0.1
/proc/29399/stat : 29399 (dewSatz) R 29397 29399 28112 0 -1 4194304 9932 0 0 0 9 1 0 0 18 0 1 0 208011053 706707456 145 18446744073709551615 134512640 134923568 4294956624 18446744073709551615 134532167 0 0 4096 0 0 0 0 17 1 0 0
/proc/29399/statm: 172536 145 43 100 0 172433 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 690144

[startup+0.515455 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 29399
/proc/meminfo: memFree=991840/2055920 swapFree=4192812/4192956
[pid=29399] ppid=29397 vsize=690144 CPUtime=0.51
/proc/29399/stat : 29399 (dewSatz) R 29397 29399 28112 0 -1 4194304 9932 0 0 0 50 1 0 0 21 0 1 0 208011053 706707456 145 18446744073709551615 134512640 134923568 4294956624 18446744073709551615 134531650 0 0 4096 0 0 0 0 17 1 0 0
/proc/29399/statm: 172536 145 43 100 0 172433 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 690144

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

[startup+0.617465 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 29399
/proc/meminfo: memFree=991840/2055920 swapFree=4192812/4192956
[pid=29399] ppid=29397 vsize=690144 CPUtime=0.61
/proc/29399/stat : 29399 (dewSatz) R 29397 29399 28112 0 -1 4194304 9932 0 0 0 60 1 0 0 22 0 1 0 208011053 706707456 145 18446744073709551615 134512640 134923568 4294956624 18446744073709551615 134526288 0 0 4096 0 0 0 0 17 1 0 0
/proc/29399/statm: 172536 145 43 100 0 172433 0
Current children cumulated CPU time (s) 0.61
Current children cumulated vsize (KiB) 690144

Child status: 10
Real time (s): 0.620823
CPU time (s): 0.618905
CPU user time (s): 0.605907
CPU system time (s): 0.012998
CPU usage (%): 99.691
Max. virtual memory (cumulated for all children) (KiB): 690144

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.605907
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9947
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= 8
involuntary context switches= 0

runsolver used 0.001999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node4 on Mon Feb 19 10:22:41 UTC 2007

IDJOB= 299970
IDBENCH= 20023
IDSOLVER= 119
FILE ID= node4/299970-1171880561

PBS_JOBID= 3839429

Free space on /tmp= 66552 MiB

SOLVER NAME= DEWSATZ 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v400/unif-k3-r4.26-v400-c1704-S2048803580-17.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/299970-1171880561/dewSatz /tmp/evaluation/299970-1171880561/instance-299970-1171880561.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-299970-1171880561 -o ROOT/results/node4/solver-299970-1171880561 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/299970-1171880561/dewSatz /tmp/evaluation/299970-1171880561/instance-299970-1171880561.cnf            

META MD5SUM SOLVER= 96edd87e369231aed4bad098c50e0080
MD5SUM BENCH=  fd7d232d07ea82b35604ae65ebcd0d41

RANDOM SEED= 458566417

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node4.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		: 3000.231
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		: 3000.231
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:        992248 kB
Buffers:         59076 kB
Cached:         867492 kB
SwapCached:          0 kB
Active:         351920 kB
Inactive:       634408 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        992248 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             968 kB
Writeback:           0 kB
Mapped:          78632 kB
Slab:            62868 kB
Committed_AS:   913108 kB
PageTables:       1768 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= 66552 MiB

End job on node4 on Mon Feb 19 10:22:43 UTC 2007