Trace number 1629992

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 0.074987 0.075765

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S1985172968-100.cnf
MD5SUMd341022d95ddbcad449a00c47578e9f1
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.026995
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 

0.00/0.00	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 = 380, numClauses = 1615
0.00/0.00	c General parameters: seed = 492682487, 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 
0.00/0.07	c      0    58220         0     58220     17912      0.07
0.00/0.07	s SATISFIABLE
0.00/0.07	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
0.00/0.07	c Done in 0.070000 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-1629992-1240142340/watcher-1629992-1240142340 -o /tmp/evaluation-result-1629992-1240142340/solver-1629992-1240142340 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/gnovelty+2 HOME/instance-1629992-1240142340.cnf 492682487 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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: 0.95 0.96 0.98 2/65 24091
/proc/meminfo: memFree=1103728/2055920 swapFree=4192956/4192956
[pid=24091] ppid=24089 vsize=1017720 CPUtime=0
/proc/24091/stat : 24091 (gnovelty+2) R 24089 24091 24000 0 -1 4194304 182 0 0 0 0 0 0 0 20 0 1 0 42263881 1042145280 165 1992294400 134512640 135663704 4294956224 18446744073709551615 134524874 0 0 4096 0 0 0 0 17 1 0 0
/proc/24091/statm: 254430 165 112 281 0 254146 0

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

Child status: 10
Real time (s): 0.075765
CPU time (s): 0.074987
CPU user time (s): 0.073988
CPU system time (s): 0.000999
CPU usage (%): 98.9732
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.073988
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= 186
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 0.001999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node81 at 2009-04-19 13:59:00
IDJOB=1629992
IDBENCH=70735
IDSOLVER=585
FILE ID=node81/1629992-1240142340
PBS_JOBID= 9157901
Free space on /tmp= 126584 MiB

SOLVER NAME= gnovelty+2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S1985172968-100.cnf
COMMAND LINE= HOME/gnovelty+2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1629992-1240142340/watcher-1629992-1240142340 -o /tmp/evaluation-result-1629992-1240142340/solver-1629992-1240142340 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/gnovelty+2 HOME/instance-1629992-1240142340.cnf 492682487

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= d341022d95ddbcad449a00c47578e9f1
RANDOM SEED=492682487

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		: 3000.234
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1104208 kB
Buffers:         88688 kB
Cached:         764236 kB
SwapCached:          0 kB
Active:         385744 kB
Inactive:       481940 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1104208 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1408 kB
Writeback:           0 kB
Mapped:          24488 kB
Slab:            69804 kB
Committed_AS:   197796 kB
PageTables:       1452 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= 126584 MiB
End job on node81 at 2009-04-19 13:59:01