Trace number 1738179

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
slstc 1.0SAT 0.251961 0.252383

General information on the benchmark

NameCRAFTED/sgi/
new-difficult-21-168-19-90.cnf
MD5SUM3286758d58a4fc3caa90b96d61beac86
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.101983
Satisfiable
(Un)Satisfiability was proved
Number of variables399
Number of clauses18184
Sum of the clauses size36729
Maximum clause length21
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 218165
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 519

Solver Data 

0.19/0.25	c SLSTC version 1.0 (based on UBCSAT 1.1.0)
0.19/0.25	c  -runs 1 
0.19/0.25	c  -cutoff 4294967295 
0.19/0.25	c  -timeout 0 
0.19/0.25	c  -gtimeout 0 
0.19/0.25	c  -noimprove 0 
0.19/0.25	c  -target 0 
0.19/0.25	c  -wtarget 0 
0.19/0.25	c  -seed 1141184332 
0.19/0.25	c  -solve 0 
0.19/0.25	c  -find,-numsol 0 
0.19/0.25	c  -findunique 0 
0.19/0.25	c  -srestart 0 
0.19/0.25	c  -prestart 0 
0.19/0.25	c  -drestart 100000 
0.19/0.25	c  -wp 0.01 
0.19/0.25	c 
0.19/0.25	s SATISFIABLE
0.19/0.25	v  1 -2 -3 -4 -5 -6 -7 -8 -9 -10
0.19/0.25	v  -11 -12 -13 -14 -15 -16 -17 -18 -19 -20
0.19/0.25	v  -21 -22 23 -24 -25 -26 -27 -28 -29 -30
0.19/0.25	v  -31 -32 -33 -34 -35 -36 -37 -38 -39 -40
0.19/0.25	v  -41 -42 -43 -44 45 -46 -47 -48 -49 -50
0.19/0.25	v  -51 -52 -53 -54 -55 -56 -57 -58 -59 -60
0.19/0.25	v  -61 -62 -63 -64 -65 -66 67 -68 -69 -70
0.19/0.25	v  -71 -72 -73 -74 -75 -76 -77 -78 -79 -80
0.19/0.25	v  -81 -82 -83 -84 -85 -86 -87 -88 89 -90
0.19/0.25	v  -91 -92 -93 -94 -95 -96 -97 -98 -99 -100
0.19/0.25	v  -101 -102 -103 -104 -105 -106 -107 -108 -109 -110
0.19/0.25	v  111 -112 -113 -114 -115 -116 -117 -118 -119 -120
0.19/0.25	v  -121 -122 -123 -124 -125 -126 -127 -128 -129 -130
0.19/0.25	v  -131 -132 -133 -134 -135 -136 -137 -138 -139 -140
0.19/0.25	v  -141 -142 -143 -144 -145 -146 147 -148 -149 -150
0.19/0.25	v  -151 -152 -153 -154 155 -156 -157 -158 -159 -160
0.19/0.25	v  -161 -162 -163 -164 -165 -166 -167 -168 -169 -170
0.19/0.25	v  -171 -172 -173 -174 -175 -176 177 -178 -179 -180
0.19/0.25	v  -181 -182 -183 -184 -185 -186 -187 -188 -189 -190
0.19/0.25	v  -191 -192 -193 -194 -195 -196 -197 -198 199 -200
0.19/0.25	v  -201 -202 -203 -204 -205 -206 -207 -208 -209 -210
0.19/0.25	v  -211 -212 -213 -214 -215 -216 -217 -218 -219 -220
0.19/0.25	v  221 -222 -223 -224 -225 -226 -227 -228 -229 -230
0.19/0.25	v  -231 -232 -233 -234 -235 -236 -237 -238 -239 -240
0.19/0.25	v  -241 -242 243 -244 -245 -246 -247 -248 -249 -250
0.19/0.25	v  -251 -252 -253 -254 -255 -256 -257 -258 -259 -260
0.19/0.25	v  -261 -262 -263 -264 265 -266 -267 -268 -269 -270
0.19/0.25	v  -271 -272 -273 -274 -275 -276 -277 -278 -279 -280
0.19/0.25	v  -281 -282 -283 -284 -285 -286 287 -288 -289 -290
0.19/0.25	v  -291 -292 -293 -294 -295 -296 -297 -298 -299 -300
0.19/0.25	v  -301 -302 -303 -304 -305 -306 -307 -308 309 -310
0.19/0.25	v  -311 -312 -313 -314 -315 -316 -317 -318 -319 -320
0.19/0.25	v  -321 -322 -323 -324 -325 -326 -327 -328 -329 -330
0.19/0.25	v  331 -332 -333 -334 -335 -336 -337 -338 -339 -340
0.19/0.25	v  -341 -342 -343 -344 -345 -346 -347 -348 -349 -350
0.19/0.25	v  -351 -352 353 -354 -355 -356 -357 -358 -359 -360
0.19/0.25	v  -361 -362 -363 -364 -365 -366 -367 -368 -369 -370
0.19/0.25	v  -371 -372 -373 -374 375 -376 -377 -378 -379 -380
0.19/0.25	v  -381 -382 -383 -384 385 -386 -387 -388 -389 -390
0.19/0.25	v  -391 -392 -393 -394 -395 -396 -397 -398 -399 -400
0.19/0.25	v  0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1738179-1240835909/watcher-1738179-1240835909 -o /tmp/evaluation-result-1738179-1240835909/solver-1738179-1240835909 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/slstc -alg adaptnovelty+-tc -runs 1 -cutoff max -r out null -r stats null -r sat2009comp -drestart 100000 -seed 1141184332 -inst HOME/instance-1738179-1240835909.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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: 1.00 1.00 1.00 3/65 32499
/proc/meminfo: memFree=1326008/2055920 swapFree=4181448/4192956
[pid=32499] ppid=32497 vsize=6080 CPUtime=0
/proc/32499/stat : 32499 (slstc) R 32497 32499 32295 0 -1 4194304 231 0 0 0 0 0 0 0 20 0 1 0 111621271 6225920 215 1992294400 134512640 135949792 4294956032 18446744073709551615 135332566 0 0 4096 0 0 0 0 17 1 0 0
/proc/32499/statm: 1520 216 136 350 0 1167 0

[startup+0.0244199 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 32499
/proc/meminfo: memFree=1326008/2055920 swapFree=4181448/4192956
[pid=32499] ppid=32497 vsize=6740 CPUtime=0.02
/proc/32499/stat : 32499 (slstc) R 32497 32499 32295 0 -1 4194304 402 0 0 0 2 0 0 0 20 0 1 0 111621271 6901760 386 1992294400 134512640 135949792 4294956032 18446744073709551615 135332566 0 0 4096 0 0 0 0 17 1 0 0
/proc/32499/statm: 1685 386 136 350 0 1332 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 6740

[startup+0.101435 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 32499
/proc/meminfo: memFree=1326008/2055920 swapFree=4181448/4192956
[pid=32499] ppid=32497 vsize=6768 CPUtime=0.09
/proc/32499/stat : 32499 (slstc) R 32497 32499 32295 0 -1 4194304 754 0 0 0 9 0 0 0 20 0 1 0 111621271 6930432 574 1992294400 134512640 135949792 4294956032 18446744073709551615 135330151 0 0 4096 0 0 0 0 17 1 0 0
/proc/32499/statm: 1692 574 145 350 0 1339 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6768

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

[startup+0.201454 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 32499
/proc/meminfo: memFree=1326008/2055920 swapFree=4181448/4192956
[pid=32499] ppid=32497 vsize=6768 CPUtime=0.19
/proc/32499/stat : 32499 (slstc) R 32497 32499 32295 0 -1 4194304 754 0 0 0 19 0 0 0 21 0 1 0 111621271 6930432 574 1992294400 134512640 135949792 4294956032 18446744073709551615 135349189 0 0 4096 0 0 0 0 17 1 0 0
/proc/32499/statm: 1692 574 145 350 0 1339 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 6768

Child status: 10
Real time (s): 0.252383
CPU time (s): 0.251961
CPU user time (s): 0.249962
CPU system time (s): 0.001999
CPU usage (%): 99.8328
Max. virtual memory (cumulated for all children) (KiB): 6768

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.249962
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= 773
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= 2
involuntary context switches= 0

runsolver used 0.004999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node77 at 2009-04-27 14:38:29
IDJOB=1738179
IDBENCH=71802
IDSOLVER=541
FILE ID=node77/1738179-1240835909
PBS_JOBID= 9187503
Free space on /tmp= 66256 MiB

SOLVER NAME= slstc 1.0
BENCH NAME= SAT09/CRAFTED/sgi/new-difficult-21-168-19-90.cnf
COMMAND LINE= HOME/slstc -alg adaptnovelty+-tc -runs 1 -cutoff max -r out null -r stats null -r sat2009comp -drestart 100000 -seed RANDOMSEED -inst BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1738179-1240835909/watcher-1738179-1240835909 -o /tmp/evaluation-result-1738179-1240835909/solver-1738179-1240835909 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/slstc -alg adaptnovelty+-tc -runs 1 -cutoff max -r out null -r stats null -r sat2009comp -drestart 100000 -seed 1141184332 -inst HOME/instance-1738179-1240835909.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 3286758d58a4fc3caa90b96d61beac86
RANDOM SEED=1141184332

node77.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.270
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		: 3000.270
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1326488 kB
Buffers:         78872 kB
Cached:         562064 kB
SwapCached:       5472 kB
Active:         290316 kB
Inactive:       358576 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1326488 kB
SwapTotal:     4192956 kB
SwapFree:      4181448 kB
Dirty:            1912 kB
Writeback:           0 kB
Mapped:          13556 kB
Slab:            66544 kB
Committed_AS:   517268 kB
PageTables:       1372 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= 66256 MiB
End job on node77 at 2009-04-27 14:38:29