Trace number 310582

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 SMPSAT 0.183971 0.335129

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1788789488-19-SAT.cnf
MD5SUM8dd20c2b2815f1615e92da9f7d25dd5d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012997
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
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/310582-1172560334/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
0.00/0.00	c Input file : '/tmp/evaluation/310582-1172560334/instance-310582-1172560334.cnf'
0.00/0.00	c [#vars: 630, #clauses: 2280 , (2-3)-CNF]
0.00/0.00	c unit clauses propagate before processing (#clause: 2280)
0.00/0.00	c estimated distribution: 8 tasks
0.00/0.05	c <28511> [PID]: 28513 28514 28515 28516 28517 28518 28519
0.00/0.33	c <28511> [PID]: 28520
0.00/0.33	c real distribution: 8 tasks
0.00/0.33	c <28511> [28513: SAT]
0.00/0.33	c <28511> [END]: 28514 28515 28516 28517 28518 28519 28520
0.00/0.33	s SATISFIABLE
0.00/0.33	v        1       -2       -3        4        5        6        7
0.00/0.33	v       -8       -9      -10       11       12       13       14
0.00/0.33	v       15       16       17       18      -19       20       21
0.00/0.33	v       22       23       24       25      -26       27       28
0.00/0.33	v       29      -30       31       32      -33       34       35
0.00/0.33	v       36       37       38       39       40       41       42
0.00/0.33	v      -43       44      -45       46       47      -48       49
0.00/0.33	v       50       51      -52       53      -54      -55       56
0.00/0.33	v      -57       58      -59       60      -61       62       63
0.00/0.33	v       64       65       66      -67      -68      -69       70
0.00/0.33	v      -71       72      -73      -74       75      -76       77
0.00/0.33	v      -78       79       80      -81      -82      -83      -84
0.00/0.33	v      -85      -86       87       88      -89      -90      -91
0.00/0.33	v      -92       93      -94       95       96      -97       98
0.00/0.33	v      -99      100     -101      102      103      104      105
0.00/0.33	v      106      107      108      109      110      111     -112
0.00/0.33	v      113     -114      115     -116      117     -118      119
0.00/0.33	v      120      121     -122     -123     -124      125     -126
0.00/0.33	v     -127      128      129     -130      131      132      133
0.00/0.33	v     -134      135      136     -137      138      139      140
0.00/0.33	v      141      142      143      144      145      146      147
0.00/0.33	v      148      149     -150      151     -152      153      154
0.00/0.33	v      155      156     -157     -158     -159      160      161
0.00/0.33	v      162      163      164     -165     -166      167      169
0.00/0.33	v      170     -171      172      173      174     -175      176
0.00/0.33	v      177     -178     -179     -180     -181      182     -183
0.00/0.33	v      184      185      186      187     -188     -189      190
0.00/0.33	v      191     -192     -193      194      195     -196      197
0.00/0.33	v     -198      199      200     -201     -202     -203     -204
0.00/0.33	v      205      206     -207     -208     -209     -210      211
0.00/0.33	v      212     -213     -214     -215      216      217      218
0.00/0.33	v      219      220      221     -222     -223      224     -225
0.00/0.33	v      226      227     -228     -229      230     -231     -232
0.00/0.33	v     -233      234     -235      236     -237     -238     -239
0.00/0.33	v      240      241      242      243      244      245     -246
0.00/0.33	v     -247      248      249      250      251      252     -253
0.00/0.33	v      254      255     -256     -257     -258      259      260
0.00/0.33	v      261      262     -263     -264      265     -266     -267
0.00/0.33	v     -268     -269      270     -271      272      273      274
0.00/0.33	v     -275      276      277      278      279     -280     -281
0.00/0.33	v     -282     -283     -284      285     -286      287     -288
0.00/0.33	v     -289      290     -291     -292      293      294      295
0.00/0.33	v      296      297      298      299      300      301      302
0.00/0.33	v      303     -304      305      306     -307      308      309
0.00/0.33	v     -310     -311      312     -313      314      315      316
0.00/0.33	v      317     -318      319      320     -321      322     -323
0.00/0.33	v      324     -325      326      327     -328      329      330
0.00/0.33	v     -331      332      333      334     -335      336      337
0.00/0.33	v      338      339      340      341     -342      343     -344
0.00/0.33	v     -345      346      347      348      349      350      351
0.00/0.33	v     -352     -353     -354      355      356     -357      358
0.00/0.33	v      359     -360     -361      362      363     -364     -365
0.00/0.33	v     -366     -367     -368      369      370     -371     -372
0.00/0.33	v      373      374      375      376     -377      378     -379
0.00/0.33	v     -380     -381      382      383      384     -385     -386
0.00/0.33	v      387      388      389     -390     -391     -392      393
0.00/0.33	v     -394      395     -396     -397     -398     -399      400
0.00/0.33	v     -401     -402      403      404      405     -406      407
0.00/0.33	v      408      409      410      411     -412      413     -414
0.00/0.33	v     -415     -416      417      418      419      420     -421
0.00/0.33	v      422     -423      424      425     -426     -427      428
0.00/0.33	v      429     -430     -431      432      433     -434     -435
0.00/0.33	v      436     -437     -438     -439      440      441     -442
0.00/0.33	v      443     -444     -445      446     -447     -448     -449
0.00/0.33	v     -450      451      452     -453      454      455     -456
0.00/0.33	v      457     -458      459      460     -461      462      463
0.00/0.33	v     -464     -465     -466     -467     -468     -469     -470
0.00/0.33	v      471     -472     -473     -474     -475     -476     -477
0.00/0.33	v     -478     -479      480      481     -482      483      484
0.00/0.33	v      485      486      487     -488      489      490      491
0.00/0.33	v      492     -493     -494     -495     -496      497     -498
0.00/0.33	v      499      500     -501      502      503      504     -505
0.00/0.33	v     -506     -507     -508     -509      510      511     -512
0.00/0.33	v     -513     -514      515      516      517     -518     -519
0.00/0.33	v     -520     -521      522     -523      524     -525     -526
0.00/0.33	v     -527      528      529     -530      531     -532     -533
0.00/0.33	v      534     -535     -536     -537      538      539     -540
0.00/0.33	v      541      542      543      544     -545      546      547
0.00/0.33	v     -548      549      550      551     -552      553      554
0.00/0.33	v      555     -556     -557     -558     -559      560     -561
0.00/0.33	v      562      563      564     -565     -566      567     -568
0.00/0.33	v     -569     -570      571      572      573      574      575
0.00/0.33	v     -576     -577     -578      579     -580      581     -582
0.00/0.33	v     -583     -584      585      586     -587      588      589
0.00/0.33	v      590     -591     -592     -593     -594      595      596
0.00/0.33	v      597     -598      599     -600     -601      602      603
0.00/0.33	v     -604      605     -606     -607      608     -609      610
0.00/0.33	v      611      612     -613      614     -615     -616      617
0.00/0.33	v     -618      619     -620     -621      622      623     -624
0.00/0.33	v     -625      626     -627     -628      629      630        0
0.00/0.33	c CPU time            : 0.170 seconds
0.00/0.33	c Elapsed Time        : 0.328 seconds
0.00/0.33	c Size of search tree : 260 nodes
0.00/0.33	c average speed       : 1529.412 nodes/sec.
0.00/0.33

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/node2/watcher-310582-1172560334 -o ROOT/results/node2/solver-310582-1172560334 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310582-1172560334/kcnfs-smp /tmp/evaluation/310582-1172560334/instance-310582-1172560334.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: 0.86 0.97 0.99 3/77 28511
/proc/meminfo: memFree=1669920/2055920 swapFree=4192812/4192956
[pid=28511] ppid=28509 vsize=181044 CPUtime=0
/proc/28511/stat : 28511 (kcnfs-smp) R 28509 28511 27407 0 -1 4194304 157 0 0 0 0 0 0 0 18 0 1 0 275988364 185389056 142 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134541683 0 0 4096 0 0 0 0 17 1 0 0
/proc/28511/statm: 45261 143 51 160 0 45099 0

[startup+0.107491 s]
/proc/loadavg: 0.86 0.97 0.99 3/77 28511
/proc/meminfo: memFree=1669920/2055920 swapFree=4192812/4192956
[pid=28511] ppid=28509 vsize=181512 CPUtime=0
/proc/28511/stat : 28511 (kcnfs-smp) R 28509 28511 27407 0 -1 4194304 422 0 0 0 0 0 0 0 24 0 1 0 275988364 185868288 251 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836899 0 0 4096 0 0 0 0 17 0 0 0
/proc/28511/statm: 45378 251 65 160 0 45216 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 181512

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

[startup+0.209501 s]
/proc/loadavg: 0.86 0.97 0.99 3/77 28511
/proc/meminfo: memFree=1669920/2055920 swapFree=4192812/4192956
[pid=28511] ppid=28509 vsize=181512 CPUtime=0
/proc/28511/stat : 28511 (kcnfs-smp) R 28509 28511 27407 0 -1 4194304 422 0 0 0 0 0 0 0 24 0 1 0 275988364 185868288 251 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836899 0 0 4096 0 0 0 0 17 0 0 0
/proc/28511/statm: 45378 251 65 160 0 45216 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 181512

[startup+0.31151 s]
/proc/loadavg: 0.86 0.97 0.99 3/77 28511
/proc/meminfo: memFree=1669920/2055920 swapFree=4192812/4192956
[pid=28511] ppid=28509 vsize=181512 CPUtime=0
/proc/28511/stat : 28511 (kcnfs-smp) R 28509 28511 27407 0 -1 4194304 441 0 0 0 0 0 0 0 24 0 1 0 275988364 185868288 251 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836899 0 0 4096 0 0 0 0 17 1 0 0
/proc/28511/statm: 45378 251 65 160 0 45216 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 181512

Child status: 10
Real time (s): 0.335129
CPU time (s): 0.183971
CPU user time (s): 0.180972
CPU system time (s): 0.002999
CPU usage (%): 54.8956
Max. virtual memory (cumulated for all children) (KiB): 181512

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.180972
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 548
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= 12
involuntary context switches= 28

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node2 on Tue Feb 27 07:12:14 UTC 2007

IDJOB= 310582
IDBENCH= 20291
IDSOLVER= 112
FILE ID= node2/310582-1172560334

PBS_JOBID= 3971655

Free space on /tmp= 66555 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1788789488-19-SAT.cnf
COMMAND LINE= /tmp/evaluation/310582-1172560334/kcnfs-smp /tmp/evaluation/310582-1172560334/instance-310582-1172560334.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-310582-1172560334 -o ROOT/results/node2/solver-310582-1172560334 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310582-1172560334/kcnfs-smp /tmp/evaluation/310582-1172560334/instance-310582-1172560334.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  8dd20c2b2815f1615e92da9f7d25dd5d

RANDOM SEED= 607095430

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node2.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		: 3000.247
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		: 3000.247
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:       1670328 kB
Buffers:         47728 kB
Cached:         207816 kB
SwapCached:          0 kB
Active:         252204 kB
Inactive:        63256 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1670328 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3384 kB
Writeback:           0 kB
Mapped:          78784 kB
Slab:            55612 kB
Committed_AS:  1300240 kB
PageTables:       1812 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= 66555 MiB

End job on node2 on Tue Feb 27 07:12:15 UTC 2007