Trace number 1528952

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+2 2009-03-22SAT 0.016997 0.0185169

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/420/
unif-k3-r4.25-v420-c1785-S1014608490-038.cnf
MD5SUMfa87bf22946652bd235c5205438c2d39
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010997
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 

0.00/0.00	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 
0.00/0.00	c Problem instance: numAtoms = 420, numClauses = 1785
0.00/0.00	c General parameters: seed = 319168648, timeout = 10 secs, targetCost = 0, print solution: no
0.00/0.00	c gNovelty+ parameters: walkprob = 0.01, smoothprob = 0.40, noise = adaptive
0.00/0.00	c tries = 1
0.00/0.00	c 
0.00/0.01	c      0     9109         0      9109      2162      0.01
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
0.00/0.01	c Done in 0.010000 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-1528952-1238575785/watcher-1528952-1238575785 -o /tmp/evaluation-result-1528952-1238575785/solver-1528952-1238575785 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+2 HOME/instance-1528952-1238575785.cnf 319168648 

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: 1.61 1.81 1.55 2/73 27665
/proc/meminfo: memFree=1451624/2055920 swapFree=4164824/4192956
[pid=27665] ppid=27663 vsize=1017724 CPUtime=0
/proc/27665/stat : 27665 (gnovelty+2) R 27663 27665 27425 0 -1 4194304 141 0 0 0 0 0 0 0 20 0 1 0 1130243285 1042149376 125 1992294400 134512640 135663704 4294956208 18446744073709551615 134549384 0 0 4096 0 0 0 0 17 1 0 0
/proc/27665/statm: 254431 125 95 281 0 254147 0

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

Child status: 10
Real time (s): 0.0185169
CPU time (s): 0.016997
CPU user time (s): 0.016997
CPU system time (s): 0
CPU usage (%): 91.7917
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.016997
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= 190
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= 1
involuntary context switches= 1

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node81 at 2009-04-01 10:49:45
IDJOB=1528952
IDBENCH=70671
IDSOLVER=548
FILE ID=node81/1528952-1238575785
PBS_JOBID= 9062206
Free space on /tmp= 126316 MiB

SOLVER NAME= gnovelty+2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/420/unif-k3-r4.25-v420-c1785-S1014608490-038.cnf
COMMAND LINE= HOME/gnovelty+2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1528952-1238575785/watcher-1528952-1238575785 -o /tmp/evaluation-result-1528952-1238575785/solver-1528952-1238575785 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+2 HOME/instance-1528952-1238575785.cnf 319168648

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

MD5SUM BENCH= fa87bf22946652bd235c5205438c2d39
RANDOM SEED=319168648

node81.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		: 3000.220
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		: 3000.220
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:      2055920 kB
MemFree:       1452104 kB
Buffers:         88884 kB
Cached:         413428 kB
SwapCached:      19112 kB
Active:         324136 kB
Inactive:       199060 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1452104 kB
SwapTotal:     4192956 kB
SwapFree:      4164824 kB
Dirty:            1472 kB
Writeback:           0 kB
Mapped:          26536 kB
Slab:            65484 kB
Committed_AS:  3012824 kB
PageTables:       2084 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= 126316 MiB
End job on node81 at 2009-04-01 10:49:45