Trace number 1543246

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 0.020996 0.015093

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S1516934767-080.cnf
MD5SUMe81ed5c11d3bffdd04a2753974045769
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008998
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 
0.00/0.01	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 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-1543246-1238597039/watcher-1543246-1238597039 -o /tmp/evaluation-result-1543246-1238597039/solver-1543246-1238597039 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1543246-1238597039.cnf 2024365049 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: 1.84 1.98 1.91 3/64 21048
/proc/meminfo: memFree=1535864/2055920 swapFree=4176720/4192956
[pid=21048] ppid=21046 vsize=71132 CPUtime=0
/proc/21048/stat : 21048 (gnovelty+) R 21046 21048 20220 0 -1 4194304 184 0 0 0 0 0 0 0 18 0 2 0 1132368947 72839168 168 1992294400 134512640 135728688 4294956192 18446744073709551615 134526635 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/21048/statm: 17783 168 104 296 0 17484 0
[pid=21048/tid=21049] ppid=21046 vsize=71132 CPUtime=0
/proc/21048/task/21049/stat : 21049 (gnovelty+) R 21046 21048 20220 0 -1 4194368 0 0 0 0 0 0 0 0 19 0 2 0 1132368948 72839168 168 1992294400 134512640 135728688 4294956192 18446744073709551615 135205972 0 0 4096 0 0 0 0 -1 1 0 0

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

Child status: 10
Real time (s): 0.015093
CPU time (s): 0.020996
CPU user time (s): 0.018997
CPU system time (s): 0.001999
CPU usage (%): 139.111
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.018997
system time used= 0.001999
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= 4
involuntary context switches= 0

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node34 at 2009-04-01 16:43:59
IDJOB=1543246
IDBENCH=70737
IDSOLVER=552
FILE ID=node34/1543246-1238597039
PBS_JOBID= 9068309
Free space on /tmp= 66380 MiB

SOLVER NAME= gNovelty+-V.2-T 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S1516934767-080.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1543246-1238597039/watcher-1543246-1238597039 -o /tmp/evaluation-result-1543246-1238597039/solver-1543246-1238597039 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1543246-1238597039.cnf 2024365049 2

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

MD5SUM BENCH= e81ed5c11d3bffdd04a2753974045769
RANDOM SEED=2024365049

node34.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		: 3000.259
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		: 3000.259
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:       1536280 kB
Buffers:         90860 kB
Cached:         329504 kB
SwapCached:      10076 kB
Active:         204100 kB
Inactive:       227728 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1536280 kB
SwapTotal:     4192956 kB
SwapFree:      4176720 kB
Dirty:            1476 kB
Writeback:           0 kB
Mapped:          17220 kB
Slab:            73788 kB
Committed_AS:  2818488 kB
PageTables:       1388 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= 66380 MiB
End job on node34 at 2009-04-01 16:44:00