Trace number 371807

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 0.191969 0.227898

General information on the benchmark

Namerandom/OnTreshold/3SAT/v400/
unif-k3-r4.26-v400-c1704-S1031412672-05.SAT.shuffled.cnf
MD5SUM2e3fcbe567f2903b00fec23f53309ef8
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.022995
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)

0.09/0.19	c 
0.09/0.19	c UBCSAT version 1.1.0rr
0.09/0.19	c 
0.09/0.19	c http://www.satlib.org/ubcsat
0.09/0.19	c 
0.09/0.19	c ubcsat -h for help
0.09/0.19	c 
0.09/0.19	c  -runs 1 
0.09/0.19	c  -cutoff 4294967295 
0.09/0.19	c  -timeout 0.000000 
0.09/0.19	c  -gtimeout 0.000000 
0.09/0.19	c  -noimprove 0 
0.09/0.19	c  -target 0 
0.09/0.19	c  -wtarget 0.000000 
0.09/0.19	c  -seed 64256143 
0.09/0.19	c  -solve 0 
0.09/0.19	c  -find,-numsol 0 
0.09/0.19	c  -findunique 0 
0.09/0.19	c  -srestart 0 
0.09/0.19	c  -prestart 0.000000 
0.09/0.19	c  -drestart 0 
0.09/0.19	c 
0.09/0.19	c  -alpha 1.126000 
0.09/0.19	c  -rho 0.666000 
0.09/0.19	c  -ps 0.033000 
0.09/0.19	c  -wp 0.060000 
0.09/0.19	c  -sapsthresh -0.100000 
0.09/0.19	c 
0.09/0.19	s SATISFIABLE
0.09/0.19	v  1 2 3 4 -5 6 7 8 -9 -10
0.09/0.19	v  -11 12 13 14 15 16 17 18 -19 20
0.09/0.19	v  -21 22 23 -24 25 26 27 -28 29 30
0.09/0.19	v  -31 -32 -33 34 35 36 37 38 -39 40
0.09/0.19	v  41 42 43 44 -45 -46 -47 -48 49 50
0.09/0.19	v  51 52 -53 54 -55 -56 57 58 -59 60
0.09/0.19	v  -61 62 -63 64 -65 -66 -67 -68 69 -70
0.09/0.19	v  -71 72 73 -74 75 -76 -77 -78 -79 80
0.09/0.19	v  81 -82 -83 84 -85 86 87 88 89 -90
0.09/0.19	v  -91 92 93 94 95 -96 -97 98 -99 100
0.09/0.19	v  -101 -102 103 104 -105 -106 107 -108 109 110
0.09/0.19	v  -111 -112 113 114 115 116 117 -118 -119 120
0.09/0.19	v  -121 -122 123 -124 -125 -126 127 -128 -129 130
0.09/0.19	v  -131 132 -133 -134 135 -136 -137 -138 139 140
0.09/0.19	v  -141 142 143 144 145 146 -147 -148 -149 150
0.09/0.19	v  -151 -152 -153 154 -155 -156 157 158 -159 160
0.09/0.19	v  -161 162 163 -164 165 166 -167 -168 -169 -170
0.09/0.19	v  -171 -172 173 174 -175 -176 -177 178 179 -180
0.09/0.19	v  -181 182 -183 184 -185 -186 187 188 -189 -190
0.09/0.19	v  191 192 193 -194 195 196 197 -198 199 200
0.09/0.19	v  -201 202 -203 204 -205 206 207 208 209 210
0.09/0.19	v  -211 212 -213 214 215 -216 -217 218 -219 220
0.09/0.19	v  -221 -222 -223 -224 -225 -226 227 228 229 -230
0.09/0.19	v  -231 232 233 234 -235 -236 237 238 -239 240
0.09/0.19	v  -241 -242 243 244 -245 -246 -247 248 249 -250
0.09/0.19	v  251 -252 -253 -254 -255 256 -257 258 -259 260
0.09/0.19	v  261 262 263 -264 265 -266 267 -268 269 270
0.09/0.19	v  -271 -272 -273 -274 -275 276 277 278 279 -280
0.09/0.19	v  281 -282 -283 -284 285 -286 287 288 -289 -290
0.09/0.19	v  291 292 293 -294 295 296 297 298 -299 -300
0.09/0.19	v  301 302 303 304 305 -306 -307 -308 -309 -310
0.09/0.19	v  -311 312 -313 -314 -315 316 317 -318 -319 320
0.09/0.19	v  321 -322 323 -324 325 -326 327 328 329 330
0.09/0.19	v  331 332 -333 -334 -335 336 -337 -338 339 -340
0.09/0.19	v  341 342 343 344 345 346 -347 348 -349 -350
0.09/0.19	v  -351 352 -353 354 -355 -356 -357 358 -359 -360
0.09/0.19	v  361 -362 363 -364 -365 -366 -367 -368 -369 370
0.09/0.19	v  -371 372 -373 374 375 -376 -377 -378 379 -380
0.09/0.19	v  381 -382 383 384 385 386 -387 -388 389 -390
0.09/0.19	v  391 -392 -393 394 395 396 -397 -398 -399 -400
0.09/0.19	v  0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node45/watcher-371807-1177545797 -o ROOT/results/node45/solver-371807-1177545797 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371807-1177545797/sapsrt /tmp/evaluation/371807-1177545797/instance-371807-1177545797.cnf 64256143 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.00 0.00 0.13 3/77 26548
/proc/meminfo: memFree=1811224/2055920 swapFree=4157664/4192956
[pid=26548] ppid=26546 vsize=5156 CPUtime=0
/proc/26548/stat : 26548 (sapsrt) R 26546 26548 26494 0 -1 4194304 177 0 0 0 0 0 0 0 18 0 1 0 109425334 5279744 162 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134549515 0 0 4096 0 0 0 0 17 1 0 0
/proc/26548/statm: 1289 162 83 159 0 1128 0

[startup+0.0394149 s]
/proc/loadavg: 0.00 0.00 0.13 3/77 26548
/proc/meminfo: memFree=1811224/2055920 swapFree=4157664/4192956
[pid=26548] ppid=26546 vsize=5156 CPUtime=0.03
/proc/26548/stat : 26548 (sapsrt) R 26546 26548 26494 0 -1 4194304 177 0 0 0 3 0 0 0 18 0 1 0 109425334 5279744 162 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134715099 0 0 4096 0 0 0 0 17 1 0 0
/proc/26548/statm: 1289 162 83 159 0 1128 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5156

[startup+0.101416 s]
/proc/loadavg: 0.00 0.00 0.13 3/77 26548
/proc/meminfo: memFree=1811224/2055920 swapFree=4157664/4192956
[pid=26548] ppid=26546 vsize=5156 CPUtime=0.09
/proc/26548/stat : 26548 (sapsrt) R 26546 26548 26494 0 -1 4194304 177 0 0 0 9 0 0 0 18 0 1 0 109425334 5279744 162 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134550745 0 0 4096 0 0 0 0 17 1 0 0
/proc/26548/statm: 1289 162 83 159 0 1128 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5156

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

[startup+0.201426 s]
/proc/loadavg: 0.00 0.00 0.13 3/77 26548
/proc/meminfo: memFree=1811224/2055920 swapFree=4157664/4192956
[pid=26548] ppid=26546 vsize=0 CPUtime=0.19
/proc/26548/stat : 26548 (sapsrt) D 26546 26548 26494 0 -1 4194308 192 0 0 0 19 0 0 0 18 0 1 0 109425334 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 18446744072100051646 0 0 17 1 0 0
/proc/26548/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 0

Child status: 10
Real time (s): 0.227898
CPU time (s): 0.191969
CPU user time (s): 0.19097
CPU system time (s): 0.000999
CPU usage (%): 84.2346
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.19097
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= 3

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node45 on Thu Apr 26 00:03:17 UTC 2007

IDJOB= 371807
IDBENCH= 20018
IDSOLVER= 187
FILE ID= node45/371807-1177545797

PBS_JOBID= 4696537

Free space on /tmp= 66445 MiB

SOLVER NAME= sapsrt 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v400/unif-k3-r4.26-v400-c1704-S1031412672-05.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/371807-1177545797/sapsrt /tmp/evaluation/371807-1177545797/instance-371807-1177545797.cnf  64256143       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node45/watcher-371807-1177545797 -o ROOT/results/node45/solver-371807-1177545797 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371807-1177545797/sapsrt /tmp/evaluation/371807-1177545797/instance-371807-1177545797.cnf  64256143       

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  2e3fcbe567f2903b00fec23f53309ef8

RANDOM SEED= 64256143

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node45.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		: 3000.218
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		: 3000.218
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:       1811760 kB
Buffers:         37200 kB
Cached:         129364 kB
SwapCached:      14792 kB
Active:          98328 kB
Inactive:        91356 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1811760 kB
SwapTotal:     4192956 kB
SwapFree:      4157664 kB
Dirty:            2212 kB
Writeback:           0 kB
Mapped:          29592 kB
Slab:            40100 kB
Committed_AS:  1352540 kB
PageTables:       1732 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= 66445 MiB

End job on node45 on Thu Apr 26 00:03:18 UTC 2007