Trace number 299954

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
saps 2007-02-08SAT 0.005998 0.0076691

General information on the benchmark

Namerandom/OnTreshold/3SAT/v400/
unif-k3-r4.26-v400-c1704-S2048803580-17.SAT.shuffled.cnf
MD5SUMfd7d232d07ea82b35604ae65ebcd0d41
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005998
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)

0.00/0.00	c 
0.00/0.00	c UBCSAT version 1.1.0rr
0.00/0.00	c 
0.00/0.00	c http://www.satlib.org/ubcsat
0.00/0.00	c 
0.00/0.00	c ubcsat -h for help
0.00/0.00	c 
0.00/0.00	c  -runs 1 
0.00/0.00	c  -cutoff 4294967295 
0.00/0.00	c  -timeout 0.000000 
0.00/0.00	c  -gtimeout 0.000000 
0.00/0.00	c  -noimprove 0 
0.00/0.00	c  -target 0 
0.00/0.00	c  -wtarget 0.000000 
0.00/0.00	c  -seed 532722067 
0.00/0.00	c  -solve 0 
0.00/0.00	c  -find,-numsol 0 
0.00/0.00	c  -findunique 0 
0.00/0.00	c  -srestart 0 
0.00/0.00	c  -prestart 0.000000 
0.00/0.00	c  -drestart 0 
0.00/0.00	c 
0.00/0.00	c  -alpha 1.300000 
0.00/0.00	c  -rho 0.800000 
0.00/0.00	c  -ps 0.050000 
0.00/0.00	c  -wp 0.010000 
0.00/0.00	c  -sapsthresh -0.100000 
0.00/0.00	c 
0.00/0.00	s SATISFIABLE
0.00/0.00	v  1 -2 -3 4 5 6 7 -8 -9 10
0.00/0.00	v  11 12 -13 14 15 -16 17 -18 -19 20
0.00/0.00	v  21 -22 23 -24 25 -26 27 28 29 30
0.00/0.00	v  31 -32 33 -34 35 36 -37 38 39 -40
0.00/0.00	v  -41 -42 43 44 45 -46 -47 -48 49 -50
0.00/0.00	v  51 52 53 54 -55 -56 57 -58 59 60
0.00/0.00	v  61 -62 63 -64 -65 66 -67 -68 69 70
0.00/0.00	v  71 -72 73 74 75 76 77 78 -79 80
0.00/0.00	v  -81 82 -83 -84 85 -86 87 -88 -89 90
0.00/0.00	v  91 92 93 -94 95 96 -97 98 -99 100
0.00/0.00	v  -101 102 -103 -104 -105 -106 107 108 109 -110
0.00/0.00	v  111 -112 -113 -114 115 -116 -117 118 119 -120
0.00/0.00	v  121 122 -123 124 -125 -126 127 -128 -129 130
0.00/0.00	v  131 132 133 134 135 -136 137 -138 139 140
0.00/0.00	v  141 142 -143 -144 -145 146 147 -148 149 150
0.00/0.00	v  -151 -152 153 -154 -155 -156 -157 158 -159 -160
0.00/0.00	v  -161 162 -163 164 165 166 167 -168 -169 -170
0.00/0.00	v  -171 172 173 -174 175 176 -177 -178 179 180
0.00/0.00	v  181 -182 183 -184 -185 186 -187 188 189 190
0.00/0.00	v  191 192 193 194 195 196 197 -198 -199 -200
0.00/0.00	v  -201 -202 203 -204 -205 -206 -207 -208 209 -210
0.00/0.00	v  -211 212 -213 -214 -215 216 -217 -218 -219 -220
0.00/0.00	v  -221 -222 -223 224 -225 -226 227 228 -229 230
0.00/0.00	v  -231 232 -233 234 -235 -236 -237 238 -239 -240
0.00/0.00	v  241 242 243 -244 -245 -246 247 -248 -249 -250
0.00/0.00	v  251 -252 253 254 255 -256 -257 -258 259 -260
0.00/0.00	v  -261 262 -263 264 -265 266 -267 -268 -269 -270
0.00/0.00	v  -271 272 273 -274 275 -276 277 -278 -279 280
0.00/0.00	v  281 -282 283 -284 285 -286 287 -288 -289 290
0.00/0.00	v  -291 -292 -293 -294 -295 296 -297 -298 299 300
0.00/0.00	v  -301 302 -303 -304 305 -306 307 -308 -309 310
0.00/0.00	v  311 -312 -313 -314 -315 -316 -317 -318 -319 320
0.00/0.00	v  -321 322 323 -324 325 326 -327 -328 -329 -330
0.00/0.00	v  -331 332 -333 334 -335 336 -337 -338 339 340
0.00/0.00	v  341 -342 343 344 -345 -346 -347 -348 349 350
0.00/0.00	v  351 352 -353 -354 355 356 357 -358 359 -360
0.00/0.00	v  361 -362 -363 -364 -365 366 -367 368 -369 370
0.00/0.00	v  371 -372 373 374 375 -376 -377 378 -379 380
0.00/0.00	v  -381 382 383 -384 -385 386 -387 388 389 390
0.00/0.00	v  391 -392 393 394 395 -396 -397 -398 -399 400
0.00/0.00	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/node66/watcher-299954-1171880534 -o ROOT/results/node66/solver-299954-1171880534 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/299954-1171880534/saps /tmp/evaluation/299954-1171880534/instance-299954-1171880534.cnf 532722067 

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 0.97 0.99 3/64 30423
/proc/meminfo: memFree=411728/2055920 swapFree=4183396/4192956
[pid=30423] ppid=30421 vsize=5156 CPUtime=0
/proc/30423/stat : 30423 (saps) R 30421 30423 30151 0 -1 4194304 173 0 0 0 0 0 0 0 18 0 1 0 208010973 5279744 157 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134550734 0 0 4096 0 0 0 0 17 1 0 0
/proc/30423/statm: 1289 157 78 159 0 1128 0

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

Child status: 10
Real time (s): 0.0076691
CPU time (s): 0.005998
CPU user time (s): 0.004999
CPU system time (s): 0.000999
CPU usage (%): 78.21
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.004999
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= 191
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 0.002999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node66 on Mon Feb 19 10:22:14 UTC 2007

IDJOB= 299954
IDBENCH= 20023
IDSOLVER= 103
FILE ID= node66/299954-1171880534

PBS_JOBID= 3839778

Free space on /tmp= 66562 MiB

SOLVER NAME= saps 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v400/unif-k3-r4.26-v400-c1704-S2048803580-17.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/299954-1171880534/saps /tmp/evaluation/299954-1171880534/instance-299954-1171880534.cnf  532722067   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node66/watcher-299954-1171880534 -o ROOT/results/node66/solver-299954-1171880534 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/299954-1171880534/saps /tmp/evaluation/299954-1171880534/instance-299954-1171880534.cnf  532722067   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  fd7d232d07ea82b35604ae65ebcd0d41

RANDOM SEED= 532722067

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node66.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		: 3000.259
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	: 5931.00
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:        412136 kB
Buffers:         51920 kB
Cached:        1437132 kB
SwapCached:       3616 kB
Active:         841240 kB
Inactive:       657372 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        412136 kB
SwapTotal:     4192956 kB
SwapFree:      4183396 kB
Dirty:            2220 kB
Writeback:           0 kB
Mapped:          15504 kB
Slab:           131200 kB
Committed_AS:   579884 kB
PageTables:       1376 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 node66 on Mon Feb 19 10:22:15 UTC 2007