Trace number 369653

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
adaptg2wsat0 2007-02-08SAT 0.050991 0.052637

General information on the benchmark

Namerandom/OnTreshold/3SAT/v400/
unif-k3-r4.26-v400-c1704-S1561551265-12.SAT.shuffled.cnf
MD5SUMc6a09cb4dcbc2624dfe4aaec1f040fa6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.031994
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)

0.04/0.05	c try 1 flip j 43187
0.04/0.05	c A solution is found
0.04/0.05	s SATISFIABLE
0.04/0.05	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 
0.04/0.05	v 0 
0.04/0.05	c Done (mycputime is 0.050 seconds)

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node22/watcher-369653-1177545841 -o ROOT/results/node22/solver-369653-1177545841 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/369653-1177545841/adaptg2wsat0 /tmp/evaluation/369653-1177545841/instance-369653-1177545841.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.00 0.05 0.15 3/77 6859
/proc/meminfo: memFree=1771576/2055920 swapFree=4163588/4192956
[pid=6859] ppid=6857 vsize=215020 CPUtime=0
/proc/6859/stat : 6859 (adaptg2wsat0) R 6857 6859 6355 0 -1 4194304 118 0 0 0 0 0 0 0 18 0 1 0 202501832 220180480 102 18446744073709551615 134512640 134930208 4294956656 18446744073709551615 134523456 0 0 4096 0 0 0 0 17 1 0 0
/proc/6859/statm: 53755 102 40 101 0 53261 0

[startup+0.0487829 s]
/proc/loadavg: 0.00 0.05 0.15 3/77 6859
/proc/meminfo: memFree=1771576/2055920 swapFree=4163588/4192956
[pid=6859] ppid=6857 vsize=215180 CPUtime=0.04
/proc/6859/stat : 6859 (adaptg2wsat0) R 6857 6859 6355 0 -1 4194304 165 0 0 0 4 0 0 0 18 0 1 0 202501832 220344320 146 18446744073709551615 134512640 134930208 4294956656 18446744073709551615 134540614 0 0 4096 0 0 0 0 17 1 0 0
/proc/6859/statm: 53795 146 43 101 0 53301 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 215180

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

[startup+0.0487829 s]
/proc/loadavg: 0.00 0.05 0.15 3/77 6859
/proc/meminfo: memFree=1771576/2055920 swapFree=4163588/4192956
[pid=6859] ppid=6857 vsize=215180 CPUtime=0.04
/proc/6859/stat : 6859 (adaptg2wsat0) R 6857 6859 6355 0 -1 4194304 165 0 0 0 4 0 0 0 18 0 1 0 202501832 220344320 146 18446744073709551615 134512640 134930208 4294956656 18446744073709551615 134540614 0 0 4096 0 0 0 0 17 1 0 0
/proc/6859/statm: 53795 146 43 101 0 53301 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 215180

Child status: 10
Real time (s): 0.052637
CPU time (s): 0.050991
CPU user time (s): 0.049992
CPU system time (s): 0.000999
CPU usage (%): 96.8729
Max. virtual memory (cumulated for all children) (KiB): 215180

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.049992
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 180
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= 1

runsolver used 0.001999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node22 on Thu Apr 26 00:04:01 UTC 2007

IDJOB= 369653
IDBENCH= 20024
IDSOLVER= 175
FILE ID= node22/369653-1177545841

PBS_JOBID= 4696430

Free space on /tmp= 66493 MiB

SOLVER NAME= adaptg2wsat0 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v400/unif-k3-r4.26-v400-c1704-S1561551265-12.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/369653-1177545841/adaptg2wsat0 /tmp/evaluation/369653-1177545841/instance-369653-1177545841.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node22/watcher-369653-1177545841 -o ROOT/results/node22/solver-369653-1177545841 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/369653-1177545841/adaptg2wsat0 /tmp/evaluation/369653-1177545841/instance-369653-1177545841.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  c6a09cb4dcbc2624dfe4aaec1f040fa6

RANDOM SEED= 982140170

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node22.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		: 3000.265
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		: 3000.265
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:       1772112 kB
Buffers:         38580 kB
Cached:         168340 kB
SwapCached:       7892 kB
Active:         125720 kB
Inactive:       104376 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1772112 kB
SwapTotal:     4192956 kB
SwapFree:      4163588 kB
Dirty:            6144 kB
Writeback:           0 kB
Mapped:          29524 kB
Slab:            39384 kB
Committed_AS:  1966556 kB
PageTables:       1676 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= 66493 MiB

End job on node22 on Thu Apr 26 00:04:02 UTC 2007