Trace number 1542952

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
gNovelty+-V.2-T 2009-03-22SAT 0.06099 0.0335119

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/400/
unif-k3-r4.25-v400-c1700-S2032726331-082.cnf
MD5SUM978a693c176682b07f74cd4acf1b2ac2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012997
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1700
Sum of the clauses size5100
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31700
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c +------------------------------+
0.00/0.00	c | gNovelty+, version 2.0       |
0.00/0.00	c +------------------------------+
0.00/0.00	c gnovelty+ -h for help
0.00/0.00	c 
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 0

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-1542952-1238581094/watcher-1542952-1238581094 -o /tmp/evaluation-result-1542952-1238581094/solver-1542952-1238581094 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1542952-1238581094.cnf 346187040 2 

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: 0.99 0.98 0.99 3/69 30304
/proc/meminfo: memFree=1220624/2055920 swapFree=4171840/4192956
[pid=30304] ppid=30302 vsize=71132 CPUtime=0
/proc/30304/stat : 30304 (gnovelty+) R 30302 30304 30089 0 -1 4194304 183 0 0 0 0 0 0 0 18 0 2 0 1130771100 72839168 167 1992294400 134512640 135728688 4294956192 18446744073709551615 134526082 0 0 4096 0 18446744073709551615 0 0 17 0 0 0
/proc/30304/statm: 17783 167 104 296 0 17484 0
[pid=30304/tid=30305] ppid=30302 vsize=71132 CPUtime=0
/proc/30304/task/30305/stat : 30305 (gnovelty+) R 30302 30304 30089 0 -1 4194368 0 0 0 0 0 0 0 0 19 0 2 0 1130771100 72839168 167 1992294400 134512640 135728688 4294956192 18446744073709551615 135205972 0 0 4096 0 0 0 0 -1 0 0 0

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

Child status: 10
Real time (s): 0.0335119
CPU time (s): 0.06099
CPU user time (s): 0.050992
CPU system time (s): 0.009998
CPU usage (%): 181.995
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.050992
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 195
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= 13
involuntary context switches= 0

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node58 at 2009-04-01 12:18:14
IDJOB=1542952
IDBENCH=70688
IDSOLVER=552
FILE ID=node58/1542952-1238581094
PBS_JOBID= 9062219
Free space on /tmp= 66400 MiB

SOLVER NAME= gNovelty+-V.2-T 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S2032726331-082.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1542952-1238581094/watcher-1542952-1238581094 -o /tmp/evaluation-result-1542952-1238581094/solver-1542952-1238581094 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1542952-1238581094.cnf 346187040 2

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 2

MD5SUM BENCH= 978a693c176682b07f74cd4acf1b2ac2
RANDOM SEED=346187040

node58.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		: 3000.222
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		: 3000.222
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:       1221040 kB
Buffers:         97068 kB
Cached:         646552 kB
SwapCached:      11044 kB
Active:         210200 kB
Inactive:       545960 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1221040 kB
SwapTotal:     4192956 kB
SwapFree:      4171840 kB
Dirty:            1480 kB
Writeback:           0 kB
Mapped:          17376 kB
Slab:            64116 kB
Committed_AS:  2745260 kB
PageTables:       1764 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= 66400 MiB
End job on node58 at 2009-04-01 12:18:14