Trace number 1534462

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
adaptg2wsat2009 2009-03-23SAT 0.015996 0.0159549

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 

0.00/0.01	c 0 clauses are redundant and removed
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.01	c initial seed is 888651782
0.00/0.01	c try 1 flip j 5633 walk 4402 seed 632951711
0.00/0.01	c A solution is found
0.00/0.01	s SATISFIABLE
0.00/0.01	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 
0.00/0.01	v 0 
0.00/0.01	c Done (mycputime is 0.010 seconds)

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1534462-1238574619/watcher-1534462-1238574619 -o /tmp/evaluation-result-1534462-1238574619/solver-1534462-1238574619 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009 HOME/instance-1534462-1238574619.cnf 888651782 

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: 1.00 1.01 1.16 3/64 18440
/proc/meminfo: memFree=1498984/2055920 swapFree=4178500/4192956
[pid=18440] ppid=18438 vsize=415928 CPUtime=0
/proc/18440/stat : 18440 (adaptg2wsat2009) R 18438 18440 17842 0 -1 4194304 137 0 0 0 0 0 0 0 18 0 1 0 1130124200 425910272 120 1992294400 134512640 135106963 4294956192 18446744073709551615 134523290 0 0 4096 0 0 0 0 17 1 0 0
/proc/18440/statm: 103982 120 50 145 0 102858 0

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

Child status: 10
Real time (s): 0.0159549
CPU time (s): 0.015996
CPU user time (s): 0.014997
CPU system time (s): 0.000999
CPU usage (%): 100.257
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.014997
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= 207
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= 2
involuntary context switches= 0

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node62 at 2009-04-01 10:30:19
IDJOB=1534462
IDBENCH=70666
IDSOLVER=542
FILE ID=node62/1534462-1238574619
PBS_JOBID= 9062175
Free space on /tmp= 66352 MiB

SOLVER NAME= adaptg2wsat2009 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/420/unif-k3-r4.25-v420-c1785-S1940784272-089.cnf
COMMAND LINE= HOME/adaptg2wsat2009 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534462-1238574619/watcher-1534462-1238574619 -o /tmp/evaluation-result-1534462-1238574619/solver-1534462-1238574619 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009 HOME/instance-1534462-1238574619.cnf 888651782

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

MD5SUM BENCH= bd1e8bac20c24526524d34ea2c494a05
RANDOM SEED=888651782

node62.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		: 3000.232
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		: 3000.232
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:       1499464 kB
Buffers:        102028 kB
Cached:         354592 kB
SwapCached:       7616 kB
Active:         224696 kB
Inactive:       241212 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1499464 kB
SwapTotal:     4192956 kB
SwapFree:      4178500 kB
Dirty:            4600 kB
Writeback:           0 kB
Mapped:          15020 kB
Slab:            76352 kB
Committed_AS:  2898084 kB
PageTables:       1460 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66348 MiB
End job on node62 at 2009-04-01 10:30:19