Trace number 1546080

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
SAT07 reference solver: adaptg2wsat+ 2007-02-08SAT 0.048991 0.0490181

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/440/
unif-k3-r4.25-v440-c1870-S1112524719-021.cnf
MD5SUM91e05b0ecb05a962d8527635e6de2e78
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.021995
Satisfiable
(Un)Satisfiability was proved
Number of variables440
Number of clauses1870
Sum of the clauses size5610
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31870
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.04/0.04	c try 1 flip j 42602
0.04/0.04	c A solution is found
0.04/0.04	s SATISFIABLE
0.04/0.04	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 
0.04/0.04	v 0 
0.04/0.04	c Done (mycputime is 0.000 seconds)

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1546080-1238675726/watcher-1546080-1238675726 -o /tmp/evaluation-result-1546080-1238675726/solver-1546080-1238675726 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat+ HOME/instance-1546080-1238675726.cnf 

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: 1.05 1.02 1.00 3/64 15271
/proc/meminfo: memFree=1493960/2055920 swapFree=4177712/4192956
[pid=15271] ppid=15269 vsize=215152 CPUtime=0
/proc/15271/stat : 15271 (adaptg2wsat+) R 15269 15271 13888 0 -1 4194304 120 0 0 0 0 0 0 0 18 0 1 0 1140238821 220315648 104 1992294400 134512640 134930140 4294956240 18446744073709551615 134523327 0 0 4096 0 0 0 0 17 0 0 0
/proc/15271/statm: 53788 104 38 101 0 53294 0

[startup+0.0423169 s]
/proc/loadavg: 1.05 1.02 1.00 3/64 15271
/proc/meminfo: memFree=1493960/2055920 swapFree=4177712/4192956
[pid=15271] ppid=15269 vsize=216704 CPUtime=0.04
/proc/15271/stat : 15271 (adaptg2wsat+) R 15269 15271 13888 0 -1 4194304 169 0 0 0 4 0 0 0 18 0 1 0 1140238821 221904896 150 1992294400 134512640 134930140 4294956240 18446744073709551615 134547707 0 0 4096 0 0 0 0 17 0 0 0
/proc/15271/statm: 54176 150 41 101 0 53682 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 216704

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

[startup+0.0423169 s]
/proc/loadavg: 1.05 1.02 1.00 3/64 15271
/proc/meminfo: memFree=1493960/2055920 swapFree=4177712/4192956
[pid=15271] ppid=15269 vsize=216704 CPUtime=0.04
/proc/15271/stat : 15271 (adaptg2wsat+) R 15269 15271 13888 0 -1 4194304 169 0 0 0 4 0 0 0 18 0 1 0 1140238821 221904896 150 1992294400 134512640 134930140 4294956240 18446744073709551615 134547707 0 0 4096 0 0 0 0 17 0 0 0
/proc/15271/statm: 54176 150 41 101 0 53682 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 216704

Child status: 10
Real time (s): 0.0490181
CPU time (s): 0.048991
CPU user time (s): 0.046992
CPU system time (s): 0.001999
CPU usage (%): 99.9448
Max. virtual memory (cumulated for all children) (KiB): 216704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.046992
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= 181
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 0.003999 second system time

The end

Launcher Data 

Begin job on node13 at 2009-04-02 14:35:26
IDJOB=1546080
IDBENCH=70697
IDSOLVER=562
FILE ID=node13/1546080-1238675726
PBS_JOBID= 9075401
Free space on /tmp= 66396 MiB

SOLVER NAME= SAT07 reference solver: adaptg2wsat+ 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/440/unif-k3-r4.25-v440-c1870-S1112524719-021.cnf
COMMAND LINE= HOME/adaptg2wsat+ BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1546080-1238675726/watcher-1546080-1238675726 -o /tmp/evaluation-result-1546080-1238675726/solver-1546080-1238675726 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat+ HOME/instance-1546080-1238675726.cnf            

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

MD5SUM BENCH= 91e05b0ecb05a962d8527635e6de2e78
RANDOM SEED=1276383780

node13.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		: 3000.240
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		: 3000.240
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:       1494440 kB
Buffers:         89288 kB
Cached:         379648 kB
SwapCached:       9036 kB
Active:         322128 kB
Inactive:       157244 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1494440 kB
SwapTotal:     4192956 kB
SwapFree:      4177712 kB
Dirty:            6136 kB
Writeback:           0 kB
Mapped:          16096 kB
Slab:            68116 kB
Committed_AS:  3223880 kB
PageTables:       1464 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= 66392 MiB
End job on node13 at 2009-04-02 14:35:26