Trace number 1524022

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 3.41248 3.41446

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S486002104-037.cnf
MD5SUMf4b8d839b40ecfc6d6fa55a34f75fca9
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.009997
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 

3.40/3.41	c try 1 flip j 2594322
3.40/3.41	c A solution is found
3.40/3.41	s SATISFIABLE
3.40/3.41	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 
3.40/3.41	v 0 
3.40/3.41	c Done (mycputime is 3.410 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-1524022-1238597243/watcher-1524022-1238597243 -o /tmp/evaluation-result-1524022-1238597243/solver-1524022-1238597243 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/NCVWr HOME/instance-1524022-1238597243.cnf 1409825207 

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: 2.00 2.00 2.08 4/86 1982
/proc/meminfo: memFree=1662160/2055924 swapFree=4179644/4192956
[pid=1982] ppid=1980 vsize=412032 CPUtime=0
/proc/1982/stat : 1982 (NCVWr) R 1980 1982 1664 0 -1 4194304 182 0 0 0 0 0 0 0 18 0 1 0 486054779 421920768 166 1992294400 134512640 135113558 4294956208 18446744073709551615 134530735 0 0 4096 0 0 0 0 17 0 0 0
/proc/1982/statm: 103008 171 57 146 0 101883 0

[startup+0.0841141 s]
/proc/loadavg: 2.00 2.00 2.08 4/86 1982
/proc/meminfo: memFree=1662160/2055924 swapFree=4179644/4192956
[pid=1982] ppid=1980 vsize=415932 CPUtime=0.08
/proc/1982/stat : 1982 (NCVWr) R 1980 1982 1664 0 -1 4194304 194 0 0 0 8 0 0 0 18 0 1 0 486054779 425914368 178 1992294400 134512640 135113558 4294956208 18446744073709551615 134531766 0 0 4096 0 0 0 0 17 0 0 0
/proc/1982/statm: 103983 178 58 146 0 102858 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 415932

[startup+0.101116 s]
/proc/loadavg: 2.00 2.00 2.08 4/86 1982
/proc/meminfo: memFree=1662160/2055924 swapFree=4179644/4192956
[pid=1982] ppid=1980 vsize=415932 CPUtime=0.1
/proc/1982/stat : 1982 (NCVWr) R 1980 1982 1664 0 -1 4194304 194 0 0 0 10 0 0 0 18 0 1 0 486054779 425914368 178 1992294400 134512640 135113558 4294956208 18446744073709551615 134533683 0 0 4096 0 0 0 0 17 0 0 0
/proc/1982/statm: 103983 178 58 146 0 102858 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 415932

[startup+0.301154 s]
/proc/loadavg: 2.00 2.00 2.08 4/86 1982
/proc/meminfo: memFree=1662160/2055924 swapFree=4179644/4192956
[pid=1982] ppid=1980 vsize=415932 CPUtime=0.3
/proc/1982/stat : 1982 (NCVWr) R 1980 1982 1664 0 -1 4194304 194 0 0 0 30 0 0 0 19 0 1 0 486054779 425914368 178 1992294400 134512640 135113558 4294956208 18446744073709551615 134531784 0 0 4096 0 0 0 0 17 0 0 0
/proc/1982/statm: 103983 178 58 146 0 102858 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 415932

[startup+0.701228 s]
/proc/loadavg: 2.00 2.00 2.08 4/86 1982
/proc/meminfo: memFree=1662160/2055924 swapFree=4179644/4192956
[pid=1982] ppid=1980 vsize=415932 CPUtime=0.7
/proc/1982/stat : 1982 (NCVWr) R 1980 1982 1664 0 -1 4194304 194 0 0 0 70 0 0 0 23 0 1 0 486054779 425914368 178 1992294400 134512640 135113558 4294956208 18446744073709551615 134531726 0 0 4096 0 0 0 0 17 0 0 0
/proc/1982/statm: 103983 178 58 146 0 102858 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 415932

[startup+1.50137 s]
/proc/loadavg: 2.00 2.00 2.08 3/87 1983
/proc/meminfo: memFree=1661384/2055924 swapFree=4179644/4192956
[pid=1982] ppid=1980 vsize=415932 CPUtime=1.5
/proc/1982/stat : 1982 (NCVWr) R 1980 1982 1664 0 -1 4194304 194 0 0 0 150 0 0 0 25 0 1 0 486054779 425914368 178 1992294400 134512640 135113558 4294956208 18446744073709551615 134533922 0 0 4096 0 0 0 0 17 0 0 0
/proc/1982/statm: 103983 178 58 146 0 102858 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 415932

[startup+3.10167 s]
/proc/loadavg: 2.00 2.00 2.08 3/87 1983
/proc/meminfo: memFree=1661256/2055924 swapFree=4179644/4192956
[pid=1982] ppid=1980 vsize=415932 CPUtime=3.1
/proc/1982/stat : 1982 (NCVWr) R 1980 1982 1664 0 -1 4194304 194 0 0 0 310 0 0 0 25 0 1 0 486054779 425914368 178 1992294400 134512640 135113558 4294956208 18446744073709551615 134531405 0 0 4096 0 0 0 0 17 0 0 0
/proc/1982/statm: 103983 178 58 146 0 102858 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 415932

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

[startup+3.30671 s]
/proc/loadavg: 2.00 2.00 2.08 3/87 1983
/proc/meminfo: memFree=1661256/2055924 swapFree=4179644/4192956
[pid=1982] ppid=1980 vsize=415932 CPUtime=3.3
/proc/1982/stat : 1982 (NCVWr) R 1980 1982 1664 0 -1 4194304 194 0 0 0 330 0 0 0 25 0 1 0 486054779 425914368 178 1992294400 134512640 135113558 4294956208 18446744073709551615 134531483 0 0 4096 0 0 0 0 17 0 0 0
/proc/1982/statm: 103983 178 58 146 0 102858 0
Current children cumulated CPU time (s) 3.3
Current children cumulated vsize (KiB) 415932

[startup+3.40173 s]
/proc/loadavg: 2.00 2.00 2.08 3/87 1983
/proc/meminfo: memFree=1661256/2055924 swapFree=4179644/4192956
[pid=1982] ppid=1980 vsize=415932 CPUtime=3.4
/proc/1982/stat : 1982 (NCVWr) R 1980 1982 1664 0 -1 4194304 194 0 0 0 340 0 0 0 25 0 1 0 486054779 425914368 178 1992294400 134512640 135113558 4294956208 18446744073709551615 134531703 0 0 4096 0 0 0 0 17 0 0 0
/proc/1982/statm: 103983 178 58 146 0 102858 0
Current children cumulated CPU time (s) 3.4
Current children cumulated vsize (KiB) 415932

Child status: 10
Real time (s): 3.41446
CPU time (s): 3.41248
CPU user time (s): 3.41248
CPU system time (s): 0
CPU usage (%): 99.942
Max. virtual memory (cumulated for all children) (KiB): 415932

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.41248
system time used= 0
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= 16

runsolver used 0.005999 second user time and 0.017997 second system time

The end

Launcher Data 

Begin job on node83 at 2009-04-01 16:47:23
IDJOB=1524022
IDBENCH=70738
IDSOLVER=531
FILE ID=node83/1524022-1238597243
PBS_JOBID= 9068321
Free space on /tmp= 66508 MiB

SOLVER NAME= NCVWr 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S486002104-037.cnf
COMMAND LINE= HOME/NCVWr BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1524022-1238597243/watcher-1524022-1238597243 -o /tmp/evaluation-result-1524022-1238597243/solver-1524022-1238597243 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/NCVWr HOME/instance-1524022-1238597243.cnf 1409825207

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

MD5SUM BENCH= f4b8d839b40ecfc6d6fa55a34f75fca9
RANDOM SEED=1409825207

node83.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		: 3000.268
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		: 3000.268
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055924 kB
MemFree:       1662576 kB
Buffers:         79104 kB
Cached:         219312 kB
SwapCached:       7584 kB
Active:         213456 kB
Inactive:       103564 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1662576 kB
SwapTotal:     4192956 kB
SwapFree:      4179644 kB
Dirty:            4600 kB
Writeback:           0 kB
Mapped:          26044 kB
Slab:            60320 kB
Committed_AS:  1255184 kB
PageTables:       2680 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= 66500 MiB
End job on node83 at 2009-04-01 16:47:27