Trace number 298846

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 0.092985 0.0948411

General information on the benchmark

Namerandom/OnTreshold/3SAT/v360/
unif-k3-r4.26-v360-c1533-S1806915801-08.SAT.shuffled.cnf
MD5SUMcf84a3dca136fb4dbd89b4b968109201
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.043993
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)

0.00/0.09	c 
0.00/0.09	c UBCSAT version 1.1.0rr
0.00/0.09	c 
0.00/0.09	c http://www.satlib.org/ubcsat
0.00/0.09	c 
0.00/0.09	c ubcsat -h for help
0.00/0.09	c 
0.00/0.09	c  -runs 1 
0.00/0.09	c  -cutoff 4294967295 
0.00/0.09	c  -timeout 0.000000 
0.00/0.09	c  -gtimeout 0.000000 
0.00/0.09	c  -noimprove 0 
0.00/0.09	c  -target 0 
0.00/0.09	c  -wtarget 0.000000 
0.00/0.09	c  -seed 987011815 
0.00/0.09	c  -solve 0 
0.00/0.09	c  -find,-numsol 0 
0.00/0.09	c  -findunique 0 
0.00/0.09	c  -srestart 0 
0.00/0.09	c  -prestart 0.000000 
0.00/0.09	c  -drestart 0 
0.00/0.09	c 
0.00/0.09	c  -alpha 1.126000 
0.00/0.09	c  -rho 0.666000 
0.00/0.09	c  -ps 0.033000 
0.00/0.09	c  -wp 0.060000 
0.00/0.09	c  -sapsthresh -0.100000 
0.00/0.09	c 
0.00/0.09	s SATISFIABLE
0.00/0.09	v  1 2 3 -4 5 -6 -7 -8 -9 -10
0.00/0.09	v  11 12 13 -14 15 16 -17 -18 -19 20
0.00/0.09	v  -21 -22 -23 -24 25 26 27 28 29 30
0.00/0.09	v  31 -32 33 34 35 -36 -37 38 -39 -40
0.00/0.09	v  41 -42 43 44 45 46 -47 -48 -49 -50
0.00/0.09	v  51 52 53 -54 -55 -56 57 58 -59 60
0.00/0.09	v  -61 62 63 64 -65 -66 -67 -68 69 -70
0.00/0.09	v  71 72 -73 74 75 -76 77 78 -79 80
0.00/0.09	v  81 82 -83 84 85 -86 87 -88 -89 90
0.00/0.09	v  91 -92 93 -94 -95 -96 -97 -98 -99 100
0.00/0.09	v  -101 102 103 104 -105 106 -107 -108 109 -110
0.00/0.09	v  -111 112 113 114 115 -116 117 -118 -119 120
0.00/0.09	v  -121 122 123 124 125 -126 -127 128 -129 -130
0.00/0.09	v  -131 132 133 134 135 -136 137 -138 -139 140
0.00/0.09	v  -141 142 -143 -144 -145 146 -147 -148 149 150
0.00/0.09	v  151 152 -153 154 -155 156 -157 158 159 160
0.00/0.09	v  161 -162 163 -164 165 166 167 168 169 170
0.00/0.09	v  -171 -172 -173 -174 175 176 -177 178 179 -180
0.00/0.09	v  -181 -182 183 184 -185 186 187 188 189 190
0.00/0.09	v  -191 -192 193 194 -195 -196 197 198 -199 200
0.00/0.09	v  -201 202 203 204 205 -206 207 -208 209 210
0.00/0.09	v  -211 212 -213 214 215 -216 217 218 -219 -220
0.00/0.09	v  221 222 223 224 225 226 227 228 229 -230
0.00/0.09	v  -231 232 -233 -234 235 -236 -237 238 -239 240
0.00/0.09	v  241 242 -243 -244 -245 246 -247 -248 -249 -250
0.00/0.09	v  251 -252 253 -254 -255 256 -257 -258 259 -260
0.00/0.09	v  -261 262 263 264 -265 -266 267 268 -269 -270
0.00/0.09	v  271 272 -273 274 -275 -276 277 -278 -279 280
0.00/0.09	v  -281 -282 283 284 -285 -286 287 -288 289 290
0.00/0.09	v  291 -292 -293 294 -295 296 297 -298 -299 300
0.00/0.09	v  -301 -302 303 -304 -305 306 307 308 309 310
0.00/0.09	v  311 -312 313 314 315 316 317 -318 319 -320
0.00/0.09	v  321 -322 -323 324 -325 -326 -327 328 329 -330
0.00/0.09	v  -331 332 333 334 -335 336 -337 -338 339 340
0.00/0.09	v  341 342 -343 344 -345 346 347 348 -349 -350
0.00/0.09	v  351 -352 -353 -354 355 -356 357 358 359 360
0.00/0.09	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/node21/watcher-298846-1171861480 -o ROOT/results/node21/solver-298846-1171861480 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/298846-1171861480/sapsrt /tmp/evaluation/298846-1171861480/instance-298846-1171861480.cnf 987011815 

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 27345
/proc/meminfo: memFree=586352/2055920 swapFree=4147448/4192956
[pid=27345] ppid=27343 vsize=5156 CPUtime=0
/proc/27345/stat : 27345 (sapsrt) R 27343 27345 20839 0 -1 4194304 177 0 0 0 0 0 0 0 18 0 1 0 206101921 5279744 161 18446744073709551615 134512640 135167692 4294956624 18446744073709551615 134549639 0 0 4096 0 0 0 0 17 1 0 0
/proc/27345/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): 0.0948411
CPU time (s): 0.092985
CPU user time (s): 0.090986
CPU system time (s): 0.001999
CPU usage (%): 98.0429
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.090986
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= 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 0.003999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node21 on Mon Feb 19 05:04:40 UTC 2007

IDJOB= 298846
IDBENCH= 19996
IDSOLVER= 102
FILE ID= node21/298846-1171861480

PBS_JOBID= 3839653

Free space on /tmp= 66562 MiB

SOLVER NAME= sapsrt 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v360/unif-k3-r4.26-v360-c1533-S1806915801-08.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/298846-1171861480/sapsrt /tmp/evaluation/298846-1171861480/instance-298846-1171861480.cnf  987011815       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-298846-1171861480 -o ROOT/results/node21/solver-298846-1171861480 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/298846-1171861480/sapsrt /tmp/evaluation/298846-1171861480/instance-298846-1171861480.cnf  987011815       

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  cf84a3dca136fb4dbd89b4b968109201

RANDOM SEED= 987011815

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node21.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		: 3000.245
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		: 3000.245
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:        586760 kB
Buffers:         54244 kB
Cached:        1277660 kB
SwapCached:      15448 kB
Active:         731016 kB
Inactive:       626312 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        586760 kB
SwapTotal:     4192956 kB
SwapFree:      4147448 kB
Dirty:            2260 kB
Writeback:           0 kB
Mapped:          30116 kB
Slab:            97492 kB
Committed_AS:   690344 kB
PageTables:       1656 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= 66562 MiB

End job on node21 on Mon Feb 19 05:04:40 UTC 2007