Trace number 297873

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
KCNFS 2006SAT 2.29965 2.302

General information on the benchmark

Namerandom/OnTreshold/3SAT/v450/
unif-k3-r4.25-v450-c1912-S1113882813-11.SAT.shuffled.cnf
MD5SUM77226f3880fdc77b8d075583e32b35e0
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.009997
Satisfiable
(Un)Satisfiability was proved
Number of variables450
Number of clauses1912
Sum of the clauses size5736
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31912
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	
0.00/0.00	c Computed by /tmp/evaluation/297873-1171846594/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
0.00/0.00	c Input file : '/tmp/evaluation/297873-1171846594/instance-297873-1171846594.cnf'
0.00/0.00	c [#vars: 450, #clauses: 1912 -> 2022 clauses (pre-processing), 3-CNF]
0.00/0.01	c unit clauses propagate before processing (#clause: 2022)
2.25/2.30	c BSH-propagate until depth 1 (fix point: 6 updates) 
2.25/2.30	s SATISFIABLE
2.25/2.30	v        1        2        3        4       -5        6        7
2.25/2.30	v       -8        9       10      -11       12      -13       14
2.25/2.30	v      -15       16       17      -18      -19      -20      -21
2.25/2.30	v       22      -23      -24      -25       26      -27      -28
2.25/2.30	v      -29      -30      -31       32      -33       34      -35
2.25/2.30	v       36       37       38       39       40       41       42
2.25/2.30	v      -43       44       46      -47      -48      -49       50
2.25/2.30	v       51      -52      -53       54      -55       56       57
2.25/2.30	v      -58      -59       60       61       62      -63       64
2.25/2.30	v      -65       66       67      -68       69       70       71
2.25/2.30	v       72       73       74       75      -76       77      -78
2.25/2.30	v      -79      -80       81       82       83       84      -85
2.25/2.30	v      -86      -87      -88      -89       90       91       92
2.25/2.30	v       93       94       95       96       97      -98      -99
2.25/2.30	v      100      101     -102     -103      104      105     -106
2.25/2.30	v     -107      108      109     -110     -111      112     -113
2.25/2.30	v     -114      115      116     -117     -118     -119     -120
2.25/2.30	v      121      122      123     -124      125      126     -127
2.25/2.30	v     -128      129      130      131      132      133     -134
2.25/2.30	v      135     -136     -137     -138      139     -140     -141
2.25/2.30	v      142      143     -144      145      146      147     -148
2.25/2.30	v     -149      150     -151      152     -153     -155     -156
2.25/2.30	v      157     -158     -159      160      161      162      163
2.25/2.30	v     -164      165     -166     -167      168      169     -170
2.25/2.30	v     -171      172     -173      174      175     -176      177
2.25/2.30	v     -178      179      180      181     -182      183      184
2.25/2.30	v     -185     -186      187     -188      189     -190     -191
2.25/2.30	v      192     -193     -194      195      196     -197      198
2.25/2.30	v     -199      200     -201     -202      203     -204      205
2.25/2.30	v      206     -207     -208      209      210      211     -212
2.25/2.30	v      213     -214      215      216     -217      218     -219
2.25/2.30	v      220      221      222     -223     -224      225      226
2.25/2.30	v      227      228      229     -230     -231      232      233
2.25/2.30	v     -234      235     -236     -237     -238     -239      240
2.25/2.30	v     -241      242     -243      244      245      246     -247
2.25/2.30	v      248      249      250     -251      252     -253      254
2.25/2.30	v      255      256     -257      258     -259     -260      261
2.25/2.30	v      262      263      264     -265      266      267      268
2.25/2.30	v      269      270     -271      272     -273      274     -275
2.25/2.30	v     -276     -277      278      279      280      281      282
2.25/2.30	v      283      284     -285      286      287      288      289
2.25/2.30	v     -290     -291     -292      293      294      295     -296
2.25/2.30	v      297      298      299     -300      301      302     -303
2.25/2.30	v      304      305      306      307      308      309     -310
2.25/2.30	v      311     -312     -313     -314      315     -316     -317
2.25/2.30	v     -318     -319     -320     -321      322      323      324
2.25/2.30	v      325      326     -327      328      329      330      331
2.25/2.30	v      332      333      334      335      336     -337     -338
2.25/2.30	v      339      340      341      342     -343     -344     -345
2.25/2.30	v      346      347     -348      349      350      351      352
2.25/2.30	v      353      354     -355      356     -357      358      359
2.25/2.30	v      360      361      362     -363      364     -365      366
2.25/2.30	v     -367     -368      369     -370     -371     -372     -373
2.25/2.30	v     -374     -375      376      377     -378     -379     -380
2.25/2.30	v      381      382     -383      384      385     -386      387
2.25/2.30	v     -388     -389     -390     -391      392      393      394
2.25/2.30	v      395     -396      397     -398      399      400     -401
2.25/2.30	v     -402      403      404      405     -406     -407     -408
2.25/2.30	v     -409      410      411      412     -413     -414     -415
2.25/2.30	v      416      417     -418     -419     -420      421     -422
2.25/2.30	v      423     -424     -425      426      427     -428     -429
2.25/2.30	v     -430      431     -432      433      434     -435      436
2.25/2.30	v      437      438     -439      440     -441      442      443
2.25/2.30	v     -444      445      446     -447      448      449      450
2.25/2.30	v        0
2.25/2.30	c Computation time     : 2.290 seconds
2.25/2.30	c Execution time       : 2.290 seconds
2.25/2.30	c Size of search tree  : 3824 nodes
2.25/2.30	c average speed        : 1669.869 nodes/sec.
2.25/2.30

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/node44/watcher-297873-1171846594 -o ROOT/results/node44/solver-297873-1171846594 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/297873-1171846594/kcnfs-2006 /tmp/evaluation/297873-1171846594/instance-297873-1171846594.cnf 

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: 1.00 1.00 1.00 3/64 11345
/proc/meminfo: memFree=764744/2055920 swapFree=4183224/4192956
[pid=11345] ppid=11343 vsize=181972 CPUtime=0
/proc/11345/stat : 11345 (kcnfs-2006) R 11343 11345 10852 0 -1 4194304 145 0 0 0 0 0 0 0 18 0 1 0 204615546 186339328 129 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134718178 0 0 4096 0 0 0 0 17 1 0 0
/proc/11345/statm: 45493 129 49 158 0 45333 0

[startup+0.107678 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 11345
/proc/meminfo: memFree=764744/2055920 swapFree=4183224/4192956
[pid=11345] ppid=11343 vsize=182440 CPUtime=0.1
/proc/11345/stat : 11345 (kcnfs-2006) R 11343 11345 10852 0 -1 4194304 325 0 0 0 10 0 0 0 18 0 1 0 204615546 186818560 309 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134588564 0 0 4096 0 0 0 0 17 1 0 0
/proc/11345/statm: 45610 309 77 158 0 45450 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 182440

[startup+0.518753 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 11345
/proc/meminfo: memFree=764744/2055920 swapFree=4183224/4192956
[pid=11345] ppid=11343 vsize=182440 CPUtime=0.51
/proc/11345/stat : 11345 (kcnfs-2006) R 11343 11345 10852 0 -1 4194304 325 0 0 0 51 0 0 0 21 0 1 0 204615546 186818560 309 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134675244 0 0 4096 0 0 0 0 17 1 0 0
/proc/11345/statm: 45610 309 77 158 0 45450 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 182440

[startup+1.3389 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11346
/proc/meminfo: memFree=763776/2055920 swapFree=4183224/4192956
[pid=11345] ppid=11343 vsize=182440 CPUtime=1.33
/proc/11345/stat : 11345 (kcnfs-2006) R 11343 11345 10852 0 -1 4194304 325 0 0 0 133 0 0 0 25 0 1 0 204615546 186818560 309 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134625551 0 0 4096 0 0 0 0 17 1 0 0
/proc/11345/statm: 45610 309 77 158 0 45450 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 182440

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

[startup+1.64496 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11346
/proc/meminfo: memFree=763776/2055920 swapFree=4183224/4192956
[pid=11345] ppid=11343 vsize=182440 CPUtime=1.64
/proc/11345/stat : 11345 (kcnfs-2006) R 11343 11345 10852 0 -1 4194304 325 0 0 0 164 0 0 0 25 0 1 0 204615546 186818560 309 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134675198 0 0 4096 0 0 0 0 17 1 0 0
/proc/11345/statm: 45610 309 77 158 0 45450 0
Current children cumulated CPU time (s) 1.64
Current children cumulated vsize (KiB) 182440

[startup+2.05303 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11346
/proc/meminfo: memFree=763776/2055920 swapFree=4183224/4192956
[pid=11345] ppid=11343 vsize=182440 CPUtime=2.05
/proc/11345/stat : 11345 (kcnfs-2006) R 11343 11345 10852 0 -1 4194304 325 0 0 0 205 0 0 0 25 0 1 0 204615546 186818560 309 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134675571 0 0 4096 0 0 0 0 17 1 0 0
/proc/11345/statm: 45610 309 77 158 0 45450 0
Current children cumulated CPU time (s) 2.05
Current children cumulated vsize (KiB) 182440

[startup+2.25707 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11346
/proc/meminfo: memFree=763584/2055920 swapFree=4183224/4192956
[pid=11345] ppid=11343 vsize=182440 CPUtime=2.25
/proc/11345/stat : 11345 (kcnfs-2006) R 11343 11345 10852 0 -1 4194304 325 0 0 0 225 0 0 0 25 0 1 0 204615546 186818560 309 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134675127 0 0 4096 0 0 0 0 17 1 0 0
/proc/11345/statm: 45610 309 77 158 0 45450 0
Current children cumulated CPU time (s) 2.25
Current children cumulated vsize (KiB) 182440

Child status: 10
Real time (s): 2.302
CPU time (s): 2.29965
CPU user time (s): 2.29865
CPU system time (s): 0.000999
CPU usage (%): 99.8979
Max. virtual memory (cumulated for all children) (KiB): 182440

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.29865
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= 336
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= 5

runsolver used 0.002999 second user time and 0.013997 second system time

The end

Launcher Data (download as text)

Begin job on node44 on Mon Feb 19 00:56:34 UTC 2007

IDJOB= 297873
IDBENCH= 19972
IDSOLVER= 113
FILE ID= node44/297873-1171846594

PBS_JOBID= 3839732

Free space on /tmp= 66561 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v450/unif-k3-r4.25-v450-c1912-S1113882813-11.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/297873-1171846594/kcnfs-2006 /tmp/evaluation/297873-1171846594/instance-297873-1171846594.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node44/watcher-297873-1171846594 -o ROOT/results/node44/solver-297873-1171846594 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/297873-1171846594/kcnfs-2006 /tmp/evaluation/297873-1171846594/instance-297873-1171846594.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  77226f3880fdc77b8d075583e32b35e0

RANDOM SEED= 817669165

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node44.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		: 3000.261
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		: 3000.261
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:        765216 kB
Buffers:         52520 kB
Cached:        1115200 kB
SwapCached:       4532 kB
Active:         839108 kB
Inactive:       339084 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        765216 kB
SwapTotal:     4192956 kB
SwapFree:      4183224 kB
Dirty:            3168 kB
Writeback:           0 kB
Mapped:          15468 kB
Slab:            98552 kB
Committed_AS:   464628 kB
PageTables:       1396 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= 66561 MiB

End job on node44 on Mon Feb 19 00:56:37 UTC 2007