Trace number 300076

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, and are wall clock time (not CPU 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
sapsrt 2007-02-08SAT 0.072988 0.0738759

General information on the benchmark

Namerandom/OnTreshold/3SAT/v400/
unif-k3-r4.26-v400-c1704-S141590207-13.SAT.shuffled.cnf
MD5SUM7c6ec57a1bd3ce147e9f90a32f77311f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.039993
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1704
Sum of the clauses size5112
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31704
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.07	c 
0.00/0.07	c UBCSAT version 1.1.0rr
0.00/0.07	c 
0.00/0.07	c http://www.satlib.org/ubcsat
0.00/0.07	c 
0.00/0.07	c ubcsat -h for help
0.00/0.07	c 
0.00/0.07	c  -runs 1 
0.00/0.07	c  -cutoff 4294967295 
0.00/0.07	c  -timeout 0.000000 
0.00/0.07	c  -gtimeout 0.000000 
0.00/0.07	c  -noimprove 0 
0.00/0.07	c  -target 0 
0.00/0.07	c  -wtarget 0.000000 
0.00/0.07	c  -seed 474015661 
0.00/0.07	c  -solve 0 
0.00/0.07	c  -find,-numsol 0 
0.00/0.07	c  -findunique 0 
0.00/0.07	c  -srestart 0 
0.00/0.07	c  -prestart 0.000000 
0.00/0.07	c  -drestart 0 
0.00/0.07	c 
0.00/0.07	c  -alpha 1.126000 
0.00/0.07	c  -rho 0.666000 
0.00/0.07	c  -ps 0.033000 
0.00/0.07	c  -wp 0.060000 
0.00/0.07	c  -sapsthresh -0.100000 
0.00/0.07	c 
0.00/0.07	s SATISFIABLE
0.00/0.07	v  -1 -2 -3 4 -5 -6 -7 8 9 10
0.00/0.07	v  11 12 13 14 -15 16 -17 -18 19 -20
0.00/0.07	v  21 -22 -23 24 -25 -26 27 -28 -29 30
0.00/0.07	v  -31 -32 33 -34 35 -36 37 38 -39 40
0.00/0.07	v  41 -42 -43 -44 45 46 -47 48 49 -50
0.00/0.07	v  51 52 53 -54 55 56 57 -58 -59 -60
0.00/0.07	v  -61 62 63 -64 65 66 67 68 69 70
0.00/0.07	v  71 72 -73 -74 75 -76 -77 78 79 -80
0.00/0.07	v  81 82 -83 84 85 86 -87 -88 -89 90
0.00/0.07	v  -91 -92 -93 -94 -95 96 -97 -98 -99 100
0.00/0.07	v  -101 -102 103 -104 -105 -106 107 108 -109 110
0.00/0.07	v  -111 112 -113 114 -115 116 -117 -118 119 -120
0.00/0.07	v  121 122 123 -124 -125 -126 -127 128 129 130
0.00/0.07	v  -131 132 -133 134 135 136 -137 138 139 -140
0.00/0.07	v  141 -142 143 -144 145 -146 147 148 149 -150
0.00/0.07	v  151 152 153 154 155 -156 157 -158 -159 -160
0.00/0.07	v  161 -162 -163 164 165 -166 -167 -168 169 170
0.00/0.07	v  171 -172 -173 -174 -175 176 -177 178 -179 180
0.00/0.07	v  181 182 183 -184 -185 -186 187 -188 -189 -190
0.00/0.07	v  191 -192 193 194 -195 196 -197 -198 199 -200
0.00/0.07	v  201 202 203 -204 -205 206 -207 -208 -209 210
0.00/0.07	v  211 212 213 -214 -215 -216 217 218 219 -220
0.00/0.07	v  221 -222 -223 -224 225 226 227 -228 -229 -230
0.00/0.07	v  231 -232 233 234 235 -236 -237 238 239 240
0.00/0.07	v  -241 242 243 244 245 -246 -247 248 -249 250
0.00/0.07	v  251 -252 253 254 255 256 -257 -258 259 260
0.00/0.07	v  261 -262 263 264 -265 -266 -267 -268 269 -270
0.00/0.07	v  271 -272 -273 274 -275 -276 -277 -278 -279 -280
0.00/0.07	v  -281 -282 283 284 285 286 287 288 -289 290
0.00/0.07	v  291 292 -293 -294 295 -296 -297 -298 -299 -300
0.00/0.07	v  301 302 -303 -304 -305 306 307 -308 -309 310
0.00/0.07	v  311 -312 313 314 315 -316 -317 318 319 -320
0.00/0.07	v  -321 322 -323 324 -325 -326 327 328 329 -330
0.00/0.07	v  -331 -332 333 334 -335 -336 337 -338 -339 340
0.00/0.07	v  -341 342 343 -344 345 346 -347 -348 349 -350
0.00/0.07	v  351 352 353 354 355 356 357 358 -359 -360
0.00/0.07	v  -361 362 363 -364 365 366 367 368 369 370
0.00/0.07	v  -371 -372 373 374 375 -376 377 -378 -379 -380
0.00/0.07	v  -381 -382 -383 -384 385 -386 -387 -388 -389 -390
0.00/0.07	v  391 -392 -393 -394 395 396 -397 398 399 400
0.00/0.07	v  0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node10/watcher-300076-1171881802 -o ROOT/results/node10/solver-300076-1171881802 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/300076-1171881802/sapsrt /tmp/evaluation/300076-1171881802/instance-300076-1171881802.cnf 474015661 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.92 0.98 0.99 3/77 30831
/proc/meminfo: memFree=1513520/2055920 swapFree=4192812/4192956
[pid=30831] ppid=30829 vsize=5156 CPUtime=0
/proc/30831/stat : 30831 (sapsrt) R 30829 30831 30575 0 -1 4194304 178 0 0 0 0 0 0 0 18 0 1 0 208135212 5279744 162 18446744073709551615 134512640 135167692 4294956608 18446744073709551615 134714869 0 0 4096 0 0 0 0 17 1 0 0
/proc/30831/statm: 1289 162 83 159 0 1128 0

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

Child status: 10
Real time (s): 0.0738759
CPU time (s): 0.072988
CPU user time (s): 0.070989
CPU system time (s): 0.001999
CPU usage (%): 98.7981
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.070989
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= 193
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= 8
involuntary context switches= 0

runsolver used 0.000999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node10 on Mon Feb 19 10:43:22 UTC 2007

IDJOB= 300076
IDBENCH= 20026
IDSOLVER= 102
FILE ID= node10/300076-1171881802

PBS_JOBID= 3839434

Free space on /tmp= 66548 MiB

SOLVER NAME= sapsrt 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v400/unif-k3-r4.26-v400-c1704-S141590207-13.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/300076-1171881802/sapsrt /tmp/evaluation/300076-1171881802/instance-300076-1171881802.cnf  474015661       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-300076-1171881802 -o ROOT/results/node10/solver-300076-1171881802 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/300076-1171881802/sapsrt /tmp/evaluation/300076-1171881802/instance-300076-1171881802.cnf  474015661       

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  7c6ec57a1bd3ce147e9f90a32f77311f

RANDOM SEED= 474015661

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node10.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.232
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		: 3000.232
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:       1513992 kB
Buffers:         50768 kB
Cached:         375728 kB
SwapCached:          0 kB
Active:         257444 kB
Inactive:       213352 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1513992 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2212 kB
Writeback:           0 kB
Mapped:          63168 kB
Slab:            56656 kB
Committed_AS:  1205196 kB
PageTables:       1832 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= 66548 MiB

End job on node10 on Mon Feb 19 10:43:22 UTC 2007