Trace number 298600

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 0.049991 0.0517699

General information on the benchmark

Namerandom/OnTreshold/3SAT/v360/
unif-k3-r4.26-v360-c1533-S2109173872-19.SAT.shuffled.cnf
MD5SUMb65fe61c0cbfeaf475aa58cd1690d41f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.019996
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1533
Sum of the clauses size4599
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31533
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.05	c 
0.00/0.05	c UBCSAT version 1.1.0rr
0.00/0.05	c 
0.00/0.05	c http://www.satlib.org/ubcsat
0.00/0.05	c 
0.00/0.05	c ubcsat -h for help
0.00/0.05	c 
0.00/0.05	c  -runs 1 
0.00/0.05	c  -cutoff 4294967295 
0.00/0.05	c  -timeout 0.000000 
0.00/0.05	c  -gtimeout 0.000000 
0.00/0.05	c  -noimprove 0 
0.00/0.05	c  -target 0 
0.00/0.05	c  -wtarget 0.000000 
0.00/0.05	c  -seed 404551080 
0.00/0.05	c  -solve 0 
0.00/0.05	c  -find,-numsol 0 
0.00/0.05	c  -findunique 0 
0.00/0.05	c  -srestart 0 
0.00/0.05	c  -prestart 0.000000 
0.00/0.05	c  -drestart 0 
0.00/0.05	c 
0.00/0.05	c  -alpha 1.126000 
0.00/0.05	c  -rho 0.666000 
0.00/0.05	c  -ps 0.033000 
0.00/0.05	c  -wp 0.060000 
0.00/0.05	c  -sapsthresh -0.100000 
0.00/0.05	c 
0.00/0.05	s SATISFIABLE
0.00/0.05	v  -1 2 3 -4 5 6 -7 -8 -9 -10
0.00/0.05	v  -11 -12 13 -14 -15 -16 -17 -18 19 -20
0.00/0.05	v  21 22 23 24 25 -26 -27 -28 -29 30
0.00/0.05	v  31 -32 -33 -34 -35 36 -37 -38 -39 -40
0.00/0.05	v  41 -42 43 -44 45 46 -47 -48 49 -50
0.00/0.05	v  51 -52 53 -54 55 -56 -57 -58 -59 -60
0.00/0.05	v  -61 -62 63 64 65 66 -67 -68 69 70
0.00/0.05	v  71 72 -73 -74 -75 76 -77 -78 79 80
0.00/0.05	v  81 82 -83 84 -85 -86 -87 88 89 90
0.00/0.05	v  91 92 93 -94 -95 96 -97 98 -99 100
0.00/0.05	v  -101 -102 -103 104 105 -106 -107 108 -109 110
0.00/0.05	v  -111 -112 113 -114 -115 116 -117 118 -119 -120
0.00/0.05	v  121 122 123 -124 125 126 -127 128 -129 130
0.00/0.05	v  131 -132 -133 134 -135 136 137 -138 139 140
0.00/0.05	v  141 -142 143 144 145 -146 -147 148 -149 -150
0.00/0.05	v  151 152 -153 -154 -155 -156 -157 158 159 -160
0.00/0.05	v  161 162 -163 164 165 -166 167 -168 169 -170
0.00/0.05	v  171 -172 -173 174 -175 176 -177 -178 -179 -180
0.00/0.05	v  181 182 -183 184 -185 -186 187 -188 -189 190
0.00/0.05	v  191 192 -193 -194 -195 -196 197 -198 199 200
0.00/0.05	v  -201 -202 203 204 205 206 -207 -208 -209 210
0.00/0.05	v  -211 212 213 -214 -215 216 217 -218 219 -220
0.00/0.05	v  221 222 -223 -224 225 226 227 -228 229 -230
0.00/0.05	v  -231 232 -233 -234 -235 236 -237 -238 -239 240
0.00/0.05	v  -241 242 -243 244 -245 -246 247 248 249 250
0.00/0.05	v  -251 -252 253 -254 255 -256 -257 -258 259 260
0.00/0.05	v  -261 -262 263 264 265 -266 267 -268 -269 270
0.00/0.05	v  271 272 273 274 -275 276 277 278 -279 -280
0.00/0.05	v  281 -282 -283 284 285 286 287 288 289 290
0.00/0.05	v  291 292 -293 -294 -295 296 -297 -298 -299 -300
0.00/0.05	v  -301 302 303 -304 -305 306 -307 -308 309 310
0.00/0.05	v  -311 -312 313 314 -315 -316 -317 -318 -319 -320
0.00/0.05	v  321 -322 -323 324 325 326 327 328 329 330
0.00/0.05	v  331 -332 333 -334 335 336 337 338 339 340
0.00/0.05	v  -341 342 343 344 345 -346 -347 -348 -349 -350
0.00/0.05	v  351 352 -353 -354 355 356 357 -358 359 -360
0.00/0.05	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/node5/watcher-298600-1171858753 -o ROOT/results/node5/solver-298600-1171858753 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/298600-1171858753/sapsrt /tmp/evaluation/298600-1171858753/instance-298600-1171858753.cnf 404551080 

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: 0.99 0.98 0.99 3/77 23149
/proc/meminfo: memFree=1065504/2055920 swapFree=4192812/4192956
[pid=23149] ppid=23147 vsize=5156 CPUtime=0
/proc/23149/stat : 23149 (sapsrt) R 23147 23149 22053 0 -1 4194304 177 0 0 0 0 0 0 0 18 0 1 0 205830143 5279744 161 18446744073709551615 134512640 135167692 4294956608 18446744073709551615 134714545 0 0 4096 0 0 0 0 17 1 0 0
/proc/23149/statm: 1289 161 83 159 0 1128 0

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

Child status: 10
Real time (s): 0.0517699
CPU time (s): 0.049991
CPU user time (s): 0.048992
CPU system time (s): 0.000999
CPU usage (%): 96.5639
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.048992
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= 192
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 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node5 on Mon Feb 19 04:19:13 UTC 2007

IDJOB= 298600
IDBENCH= 19990
IDSOLVER= 102
FILE ID= node5/298600-1171858753

PBS_JOBID= 3839401

Free space on /tmp= 66551 MiB

SOLVER NAME= sapsrt 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v360/unif-k3-r4.26-v360-c1533-S2109173872-19.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/298600-1171858753/sapsrt /tmp/evaluation/298600-1171858753/instance-298600-1171858753.cnf  404551080       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-298600-1171858753 -o ROOT/results/node5/solver-298600-1171858753 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/298600-1171858753/sapsrt /tmp/evaluation/298600-1171858753/instance-298600-1171858753.cnf  404551080       

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  b65fe61c0cbfeaf475aa58cd1690d41f

RANDOM SEED= 404551080

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node5.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		: 3000.224
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		: 3000.224
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:       1065912 kB
Buffers:         59188 kB
Cached:         810192 kB
SwapCached:          0 kB
Active:         528400 kB
Inactive:       384948 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1065912 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2208 kB
Writeback:           0 kB
Mapped:          62880 kB
Slab:            62336 kB
Committed_AS:   724124 kB
PageTables:       1692 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= 66551 MiB

End job on node5 on Mon Feb 19 04:19:13 UTC 2007