Trace number 1524031

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
NCVWr 2009-03-22SAT 0.301953 0.302728

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S1912687159-077.cnf
MD5SUMf099d7c4c7a591bc2b090785989ddd19
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011997
Satisfiable
(Un)Satisfiability was proved
Number of variables380
Number of clauses1615
Sum of the clauses size4845
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31615
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.29/0.30	c try 1 flip j 214283
0.29/0.30	c A solution is found
0.29/0.30	s SATISFIABLE
0.29/0.30	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 
0.29/0.30	v 0 
0.29/0.30	c Done (mycputime is 0.300 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-1524031-1238598272/watcher-1524031-1238598272 -o /tmp/evaluation-result-1524031-1238598272/solver-1524031-1238598272 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/NCVWr HOME/instance-1524031-1238598272.cnf 360775074 

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: 0.92 0.97 0.97 2/65 4987
/proc/meminfo: memFree=1581848/2055920 swapFree=4178736/4192956
[pid=4987] ppid=4985 vsize=415932 CPUtime=0
/proc/4987/stat : 4987 (NCVWr) R 4985 4987 4196 0 -1 4194304 193 0 0 0 0 0 0 0 18 0 1 0 486161041 425914368 177 1992294400 134512640 135113558 4294956224 18446744073709551615 134530236 0 0 4096 0 0 0 0 17 1 0 0
/proc/4987/statm: 103983 177 57 146 0 102858 0

[startup+0.090079 s]
/proc/loadavg: 0.92 0.97 0.97 2/65 4987
/proc/meminfo: memFree=1581848/2055920 swapFree=4178736/4192956
[pid=4987] ppid=4985 vsize=415932 CPUtime=0.08
/proc/4987/stat : 4987 (NCVWr) R 4985 4987 4196 0 -1 4194304 194 0 0 0 8 0 0 0 18 0 1 0 486161041 425914368 178 1992294400 134512640 135113558 4294956224 18446744073709551615 134531768 0 0 4096 0 0 0 0 17 1 0 0
/proc/4987/statm: 103983 178 58 146 0 102858 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 415932

[startup+0.101079 s]
/proc/loadavg: 0.92 0.97 0.97 2/65 4987
/proc/meminfo: memFree=1581848/2055920 swapFree=4178736/4192956
[pid=4987] ppid=4985 vsize=415932 CPUtime=0.09
/proc/4987/stat : 4987 (NCVWr) R 4985 4987 4196 0 -1 4194304 194 0 0 0 9 0 0 0 18 0 1 0 486161041 425914368 178 1992294400 134512640 135113558 4294956224 18446744073709551615 134533630 0 0 4096 0 0 0 0 17 1 0 0
/proc/4987/statm: 103983 178 58 146 0 102858 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 415932

[startup+0.3011 s]
/proc/loadavg: 0.92 0.97 0.97 2/65 4987
/proc/meminfo: memFree=1581848/2055920 swapFree=4178736/4192956
[pid=4987] ppid=4985 vsize=415932 CPUtime=0.29
/proc/4987/stat : 4987 (NCVWr) R 4985 4987 4196 0 -1 4194304 194 0 0 0 29 0 0 0 19 0 1 0 486161041 425914368 178 1992294400 134512640 135113558 4294956224 18446744073709551615 134520849 0 0 4096 0 0 0 0 17 1 0 0
/proc/4987/statm: 103983 178 58 146 0 102858 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 415932

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

Child status: 10
Real time (s): 0.302728
CPU time (s): 0.301953
CPU user time (s): 0.300954
CPU system time (s): 0.000999
CPU usage (%): 99.744
Max. virtual memory (cumulated for all children) (KiB): 415932

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.300954
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= 209
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= 1

runsolver used 0.001999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node32 at 2009-04-01 17:04:32
IDJOB=1524031
IDBENCH=70741
IDSOLVER=531
FILE ID=node32/1524031-1238598272
PBS_JOBID= 9068310
Free space on /tmp= 66456 MiB

SOLVER NAME= NCVWr 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S1912687159-077.cnf
COMMAND LINE= HOME/NCVWr BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1524031-1238598272/watcher-1524031-1238598272 -o /tmp/evaluation-result-1524031-1238598272/solver-1524031-1238598272 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/NCVWr HOME/instance-1524031-1238598272.cnf 360775074

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

MD5SUM BENCH= f099d7c4c7a591bc2b090785989ddd19
RANDOM SEED=360775074

node32.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		: 3000.234
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		: 3000.234
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:       1582456 kB
Buffers:         96148 kB
Cached:         287916 kB
SwapCached:       7344 kB
Active:         217240 kB
Inactive:       175580 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1582456 kB
SwapTotal:     4192956 kB
SwapFree:      4178736 kB
Dirty:            4608 kB
Writeback:           0 kB
Mapped:          14484 kB
Slab:            66388 kB
Committed_AS:  1703168 kB
PageTables:       1488 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= 66452 MiB
End job on node32 at 2009-04-01 17:04:32