Trace number 299964

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 0.046992 0.047749

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	
0.00/0.00	c Computed by /tmp/evaluation/299964-1171880556/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
0.00/0.00	c Input file : '/tmp/evaluation/299964-1171880556/instance-299964-1171880556.cnf'
0.00/0.00	c [#vars: 400, #clauses: 1704 -> 1820 clauses (pre-processing), 3-CNF]
0.00/0.01	c unit clauses propagate before processing (#clause: 1820)
0.00/0.04	c BSH-propagate until depth 1 (fix point: 6 updates) 
0.00/0.04	s SATISFIABLE
0.00/0.04	v        1       -2       -3        4       -5        6        7
0.00/0.04	v       -8       -9      -10       11       12       13       14
0.00/0.04	v       15      -16       17       18       19       20       21
0.00/0.04	v       22      -23       24       25      -26       27       28
0.00/0.04	v       29       30       31       32       33      -34      -35
0.00/0.04	v      -36      -37      -38       39      -40       41       42
0.00/0.04	v       43       44      -45       46       47       48       49
0.00/0.04	v      -50       51      -52      -53       54       55      -56
0.00/0.04	v      -57      -58       59      -60       61      -62       63
0.00/0.04	v      -64      -65      -66       67      -68       69      -70
0.00/0.04	v       71       72      -73       74       75       76      -77
0.00/0.04	v       78      -79       80      -81       82       83       84
0.00/0.04	v       85       86       87      -88       89       90       91
0.00/0.04	v       92      -93      -94       95       96      -97       98
0.00/0.04	v       99      100     -101      102      103     -104      105
0.00/0.04	v     -106     -107      108      109      110     -111      112
0.00/0.04	v     -113      114      115      116     -117      118      119
0.00/0.04	v     -120      121      122      123      124     -125     -126
0.00/0.04	v      127     -128     -129     -130      131      132     -133
0.00/0.04	v      134     -135     -136     -137      138      139      140
0.00/0.04	v      141      142      143     -144     -145     -146     -147
0.00/0.04	v      148      149      150      151      152     -153     -154
0.00/0.04	v      155     -156     -157     -158     -159      160      161
0.00/0.04	v      162     -163      164      165      166      167     -168
0.00/0.04	v      169     -170     -171      172     -173      174      175
0.00/0.04	v      176     -177     -178     -179      180     -181     -182
0.00/0.04	v      183     -184     -185     -186     -187      188      189
0.00/0.04	v     -190     -191     -192      193     -194      195     -196
0.00/0.04	v      197      198     -199     -200     -201     -202      203
0.00/0.04	v     -204     -205     -206     -207     -208      209     -210
0.00/0.04	v     -211      212      213      214     -215      216     -217
0.00/0.04	v     -218     -219      220      221      222     -223      224
0.00/0.04	v      225      226      227      228     -229      230      231
0.00/0.04	v      232     -233     -234     -235      236      237      238
0.00/0.04	v     -239      240      241      242      243      244      245
0.00/0.04	v     -246      247      248      249     -250      251      252
0.00/0.04	v      253      254      255      256      257      258      259
0.00/0.04	v     -260      261      262      263      264     -265     -266
0.00/0.04	v     -267     -268     -269      270     -271      272      273
0.00/0.04	v     -274      275      276      277     -278      279      280
0.00/0.04	v      281      282      283     -284      285      286      287
0.00/0.04	v     -288     -289      290     -291     -292     -293      294
0.00/0.04	v     -295      296     -297      298      299      300     -301
0.00/0.04	v      302      303     -304     -305     -306      307      308
0.00/0.04	v      309      310     -311     -312     -313      314     -315
0.00/0.04	v      316     -317      318     -319      320     -321     -322
0.00/0.04	v     -323     -324     -325      326      327     -328     -329
0.00/0.04	v      330     -331     -332     -333      334      335      336
0.00/0.04	v     -337      338      339      340      341      342      343
0.00/0.04	v      344      345     -346     -347     -348     -349      350
0.00/0.04	v     -351     -352      353     -354      355      356      357
0.00/0.04	v     -358      359     -360      361     -362     -363     -364
0.00/0.04	v     -365      366      367     -368     -369      370     -371
0.00/0.04	v     -372      373      374      375     -376     -377     -378
0.00/0.04	v      379     -380     -381      382      383     -384      385
0.00/0.04	v      386      387     -388     -389      390      391     -392
0.00/0.04	v      393     -394      395     -396     -397      398      399
0.00/0.04	v      400        0
0.00/0.04	c Computation time     : 0.040 seconds
0.00/0.04	c Execution time       : 0.040 seconds
0.00/0.04	c Size of search tree  : 38 nodes
0.00/0.04	c average speed        : 950.000 nodes/sec.
0.00/0.04

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/node71/watcher-299964-1171880556 -o ROOT/results/node71/solver-299964-1171880556 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/299964-1171880556/kcnfs-2006 /tmp/evaluation/299964-1171880556/instance-299964-1171880556.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: 0.96 0.98 0.99 3/64 30305
/proc/meminfo: memFree=943808/2055920 swapFree=4174780/4192956
[pid=30305] ppid=30303 vsize=181840 CPUtime=0
/proc/30305/stat : 30305 (kcnfs-2006) R 30303 30305 30105 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 208013400 186204160 122 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/30305/statm: 45460 122 49 158 0 45300 0

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

Child status: 10
Real time (s): 0.047749
CPU time (s): 0.046992
CPU user time (s): 0.045993
CPU system time (s): 0.000999
CPU usage (%): 98.4146
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.045993
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= 315
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 0.001999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node71 on Mon Feb 19 10:22:36 UTC 2007

IDJOB= 299964
IDBENCH= 20023
IDSOLVER= 113
FILE ID= node71/299964-1171880556

PBS_JOBID= 3839787

Free space on /tmp= 66561 MiB

SOLVER NAME= KCNFS 2006
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/299964-1171880556/kcnfs-2006 /tmp/evaluation/299964-1171880556/instance-299964-1171880556.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node71/watcher-299964-1171880556 -o ROOT/results/node71/solver-299964-1171880556 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/299964-1171880556/kcnfs-2006 /tmp/evaluation/299964-1171880556/instance-299964-1171880556.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  fd7d232d07ea82b35604ae65ebcd0d41

RANDOM SEED= 108111016

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node71.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		: 3000.266
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		: 3000.266
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:        944216 kB
Buffers:         51352 kB
Cached:         919740 kB
SwapCached:      12392 kB
Active:         758868 kB
Inactive:       230456 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        944216 kB
SwapTotal:     4192956 kB
SwapFree:      4174780 kB
Dirty:            3284 kB
Writeback:           0 kB
Mapped:          15492 kB
Slab:           108344 kB
Committed_AS:   679760 kB
PageTables:       1448 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 node71 on Mon Feb 19 10:22:36 UTC 2007