Trace number 298007

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
adaptg2wsat+ 2007-02-08SAT 0.038993 0.039356

General information on the benchmark

Namerandom/OnTreshold/3SAT/v450/
unif-k3-r4.25-v450-c1912-S1950672055-10.SAT.shuffled.cnf
MD5SUM147d23e113da0ae41cf7bb7585265fd5
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.029995
Satisfiable
(Un)Satisfiability was proved
Number of variables450
Number of clauses1912
Sum of the clauses size5736
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31912
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.03	c try 1 flip j 29505
0.00/0.03	c A solution is found
0.00/0.03	s SATISFIABLE
0.00/0.03	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 -421 -422 423 -424 -425 -426 -427 428 429 -430 431 -432 433 -434 -435 -436 -437 -438 439 -440 -441 442 -443 -444 -445 -446 -447 -448 449 -450 
0.00/0.03	v 0 
0.00/0.03	c Done (mycputime is 0.000 seconds)

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/node16/watcher-298007-1171848935 -o ROOT/results/node16/solver-298007-1171848935 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/298007-1171848935/adaptg2wsat+ /tmp/evaluation/298007-1171848935/instance-298007-1171848935.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 23182
/proc/meminfo: memFree=949648/2055920 swapFree=4192812/4192956
[pid=23182] ppid=23180 vsize=215152 CPUtime=0
/proc/23182/stat : 23182 (adaptg2wsat+) R 23180 23182 22032 0 -1 4194304 122 0 0 0 0 0 0 0 18 0 1 0 204847876 220315648 105 18446744073709551615 134512640 134930140 4294956608 18446744073709551615 134523476 0 0 4096 0 0 0 0 17 1 0 0
/proc/23182/statm: 53788 105 38 101 0 53294 0

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

Child status: 10
Real time (s): 0.039356
CPU time (s): 0.038993
CPU user time (s): 0.037994
CPU system time (s): 0.000999
CPU usage (%): 99.0777
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.037994
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= 184
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 0.002999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node16 on Mon Feb 19 01:35:35 UTC 2007

IDJOB= 298007
IDBENCH= 19975
IDSOLVER= 124
FILE ID= node16/298007-1171848935

PBS_JOBID= 3839380

Free space on /tmp= 66542 MiB

SOLVER NAME= adaptg2wsat+ 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v450/unif-k3-r4.25-v450-c1912-S1950672055-10.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/298007-1171848935/adaptg2wsat+ /tmp/evaluation/298007-1171848935/instance-298007-1171848935.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node16/watcher-298007-1171848935 -o ROOT/results/node16/solver-298007-1171848935 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/298007-1171848935/adaptg2wsat+ /tmp/evaluation/298007-1171848935/instance-298007-1171848935.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  147d23e113da0ae41cf7bb7585265fd5

RANDOM SEED= 486739468

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node16.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		: 3000.281
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		: 3000.281
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:        950120 kB
Buffers:         68560 kB
Cached:         904248 kB
SwapCached:          0 kB
Active:         347324 kB
Inactive:       679188 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        950120 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            6136 kB
Writeback:           0 kB
Mapped:          72560 kB
Slab:            64992 kB
Committed_AS:   925040 kB
PageTables:       1720 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= 66542 MiB

End job on node16 on Mon Feb 19 01:35:36 UTC 2007