Trace number 298857

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 0.177972 0.179685

General information on the benchmark

Namerandom/OnTreshold/3SAT/v360/
unif-k3-r4.26-v360-c1533-S1806915801-08.SAT.shuffled.cnf
MD5SUMcf84a3dca136fb4dbd89b4b968109201
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.043993
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1533
Sum of the clauses size4599
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31533
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/298857-1171861588/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
0.00/0.00	c Input file : '/tmp/evaluation/298857-1171861588/instance-298857-1171861588.cnf'
0.00/0.00	c [#vars: 360, #clauses: 1533 -> 1613 clauses (pre-processing), 3-CNF]
0.00/0.00	c unit clauses propagate before processing (#clause: 1613)
0.10/0.17	c BSH-propagate until depth 1 (fix point: 6 updates) 
0.10/0.17	s SATISFIABLE
0.10/0.17	v        1        2        3       -4        5       -6       -7
0.10/0.17	v       -8       -9      -10       11       12       13      -14
0.10/0.17	v       15       16      -17      -18      -19       20      -21
0.10/0.17	v      -22      -23      -24       25       26       27       28
0.10/0.17	v       29       30      -31      -32       33       34       35
0.10/0.17	v      -36       37       38      -39      -40       41      -42
0.10/0.17	v       43       44       45       46      -47      -48      -49
0.10/0.17	v      -50       51       52       53      -54      -55      -56
0.10/0.17	v       57       58      -59       60      -61       62       63
0.10/0.17	v       64      -65      -66      -67      -68       69      -70
0.10/0.17	v       71       72      -73       74      -75       77       78
0.10/0.17	v      -79       80       81       82       84       85      -86
0.10/0.17	v       87      -88      -89       90       91      -92       93
0.10/0.17	v      -94      -95      -96      -97      -98      -99      100
0.10/0.17	v     -101      102      103     -105      106     -107     -108
0.10/0.17	v      109     -111      112      113      114      115     -116
0.10/0.17	v      117     -118     -119      120     -121      122      123
0.10/0.17	v      124      125     -126     -127      128      129     -130
0.10/0.17	v     -131      133      134      135     -136      137     -138
0.10/0.17	v     -139      140     -141      142     -143     -144     -145
0.10/0.17	v      146     -147     -148      149      150      151      152
0.10/0.17	v     -153      154     -155      156     -157      158      159
0.10/0.17	v      160      161     -162      163     -164      165      166
0.10/0.17	v      167      168      169      170     -171     -172     -173
0.10/0.17	v     -174      175      176     -177      178      179     -180
0.10/0.17	v     -181     -182      183      184     -185      186      187
0.10/0.17	v      188      189      190     -191     -192      193      194
0.10/0.17	v     -195     -196      197      198     -199      200     -201
0.10/0.17	v      202      203      204      205     -206      207     -208
0.10/0.17	v      209      210     -211      212     -213      214      215
0.10/0.17	v     -216      217      218     -219     -220      221      222
0.10/0.17	v      223      224      225      226      227      228      229
0.10/0.17	v     -230     -231      232     -233     -234      235     -236
0.10/0.17	v     -237      238     -239      240      241      242     -243
0.10/0.17	v     -244     -245      246      247      248     -249     -250
0.10/0.17	v      251     -252      253     -254     -255      256     -257
0.10/0.17	v     -258      259     -260     -261      262      263      264
0.10/0.17	v     -265     -266      267      268     -269     -270      271
0.10/0.17	v      272     -273      274     -275     -276      277     -278
0.10/0.17	v     -279      280     -281     -282      283      284     -285
0.10/0.17	v     -286      287     -288      289      290      291     -292
0.10/0.17	v     -293      294     -295      296      297     -298     -299
0.10/0.17	v      300     -301      302      303     -304     -305      306
0.10/0.17	v      307      308      309      310      311     -312      313
0.10/0.17	v      314      315      316      317     -318      319     -320
0.10/0.17	v      321     -322      323      324     -325     -326     -327
0.10/0.17	v      328      329     -330      331      332      333      334
0.10/0.17	v     -335      336     -337     -338      339      340      341
0.10/0.17	v      342     -343      344     -345      346      347      348
0.10/0.17	v     -349     -350      351     -352     -353     -354      355
0.10/0.17	v     -356      357      358      359      360        0
0.10/0.17	c Computation time     : 0.170 seconds
0.10/0.17	c Execution time       : 0.170 seconds
0.10/0.17	c Size of search tree  : 333 nodes
0.10/0.17	c average speed        : 1958.824 nodes/sec.
0.10/0.17

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/node13/watcher-298857-1171861588 -o ROOT/results/node13/solver-298857-1171861588 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/298857-1171861588/kcnfs-2006 /tmp/evaluation/298857-1171861588/instance-298857-1171861588.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 1.00 1.00 3/77 25014
/proc/meminfo: memFree=784704/2055920 swapFree=4192812/4192956
[pid=25014] ppid=25012 vsize=181840 CPUtime=0
/proc/25014/stat : 25014 (kcnfs-2006) R 25012 25014 23473 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 206113250 186204160 116 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134718284 0 0 4096 0 0 0 0 17 1 0 0
/proc/25014/statm: 45460 116 49 158 0 45300 0

[startup+0.107565 s]
/proc/loadavg: 0.96 1.00 1.00 3/77 25014
/proc/meminfo: memFree=784704/2055920 swapFree=4192812/4192956
[pid=25014] ppid=25012 vsize=182308 CPUtime=0.1
/proc/25014/stat : 25014 (kcnfs-2006) R 25012 25014 23473 0 -1 4194304 287 0 0 0 10 0 0 0 18 0 1 0 206113250 186683392 271 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134593227 0 0 4096 0 0 0 0 17 1 0 0
/proc/25014/statm: 45577 271 75 158 0 45417 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 182308

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

[startup+0.107565 s]
/proc/loadavg: 0.96 1.00 1.00 3/77 25014
/proc/meminfo: memFree=784704/2055920 swapFree=4192812/4192956
[pid=25014] ppid=25012 vsize=182308 CPUtime=0.1
/proc/25014/stat : 25014 (kcnfs-2006) R 25012 25014 23473 0 -1 4194304 287 0 0 0 10 0 0 0 18 0 1 0 206113250 186683392 271 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134593227 0 0 4096 0 0 0 0 17 1 0 0
/proc/25014/statm: 45577 271 75 158 0 45417 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 182308

Child status: 10
Real time (s): 0.179685
CPU time (s): 0.177972
CPU user time (s): 0.176973
CPU system time (s): 0.000999
CPU usage (%): 99.0466
Max. virtual memory (cumulated for all children) (KiB): 182308

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.176973
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= 298
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= 1

runsolver used 0.001999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node13 on Mon Feb 19 05:06:28 UTC 2007

IDJOB= 298857
IDBENCH= 19996
IDSOLVER= 113
FILE ID= node13/298857-1171861588

PBS_JOBID= 3839402

Free space on /tmp= 66545 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v360/unif-k3-r4.26-v360-c1533-S1806915801-08.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/298857-1171861588/kcnfs-2006 /tmp/evaluation/298857-1171861588/instance-298857-1171861588.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-298857-1171861588 -o ROOT/results/node13/solver-298857-1171861588 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/298857-1171861588/kcnfs-2006 /tmp/evaluation/298857-1171861588/instance-298857-1171861588.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  cf84a3dca136fb4dbd89b4b968109201

RANDOM SEED= 319459171

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node13.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		: 3000.236
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		: 3000.236
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:        785112 kB
Buffers:         70452 kB
Cached:        1064536 kB
SwapCached:          0 kB
Active:         616088 kB
Inactive:       573272 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        785112 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3184 kB
Writeback:           0 kB
Mapped:          73272 kB
Slab:            67000 kB
Committed_AS:   888860 kB
PageTables:       1744 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= 66545 MiB

End job on node13 on Mon Feb 19 05:06:28 UTC 2007