Trace number 320757

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 2006? (exit code) 0.71789 0.719706

General information on the benchmark

Nameindustrial/babic/
xinetd/itox_vc1130.cnf
MD5SUM1dc3830fa84fd706a44d8cbfb2c0c08c
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.68574
Satisfiable
(Un)Satisfiability was proved
Number of variables152256
Number of clauses441729
Sum of the clauses size1143974
Maximum clause length3
Minimum clause length1
Number of clauses of size 110187
Number of clauses of size 2160839
Number of clauses of size 3270703
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/320757-1176323879/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
0.69/0.71	c this formula cannot been solved by kcnfs
0.69/0.71

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node3/watcher-320757-1176323879 -o ROOT/results/node3/solver-320757-1176323879 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/320757-1176323879/kcnfs-2006 /tmp/evaluation/320757-1176323879/instance-320757-1176323879.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): 2400 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: 0.85 0.94 0.92 3/77 7065
/proc/meminfo: memFree=1765024/2055920 swapFree=4191880/4192956
[pid=7065] ppid=7063 vsize=180908 CPUtime=0
/proc/7065/stat : 7065 (kcnfs-2006) R 7063 7065 5280 0 -1 4194304 135 0 0 0 0 0 0 0 18 0 1 0 108425709 185249792 120 18446744073709551615 134512640 135163436 4294956592 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/7065/statm: 45260 121 47 158 0 45100 0

[startup+0.0285219 s]
/proc/loadavg: 0.85 0.94 0.92 3/77 7065
/proc/meminfo: memFree=1765024/2055920 swapFree=4191880/4192956
[pid=7065] ppid=7063 vsize=182360 CPUtime=0.02
/proc/7065/stat : 7065 (kcnfs-2006) R 7063 7065 5280 0 -1 4194304 472 0 0 0 2 0 0 0 18 0 1 0 108425709 186736640 457 18446744073709551615 134512640 135163436 4294956592 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/7065/statm: 45590 458 47 158 0 45430 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 182360

[startup+0.101532 s]
/proc/loadavg: 0.85 0.94 0.92 3/77 7065
/proc/meminfo: memFree=1765024/2055920 swapFree=4191880/4192956
[pid=7065] ppid=7063 vsize=186188 CPUtime=0.09
/proc/7065/stat : 7065 (kcnfs-2006) R 7063 7065 5280 0 -1 4194304 1439 0 0 0 9 0 0 0 18 0 1 0 108425709 190656512 1424 18446744073709551615 134512640 135163436 4294956592 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/7065/statm: 46547 1425 47 158 0 46387 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186188

[startup+0.301565 s]
/proc/loadavg: 0.85 0.94 0.92 3/77 7065
/proc/meminfo: memFree=1765024/2055920 swapFree=4191880/4192956
[pid=7065] ppid=7063 vsize=196616 CPUtime=0.29
/proc/7065/stat : 7065 (kcnfs-2006) R 7063 7065 5280 0 -1 4194304 4039 0 0 0 27 2 0 0 19 0 1 0 108425709 201334784 4024 18446744073709551615 134512640 135163436 4294956592 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/7065/statm: 49154 4025 47 158 0 48994 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196616

[startup+0.70163 s]
/proc/loadavg: 0.85 0.94 0.92 3/77 7065
/proc/meminfo: memFree=1765024/2055920 swapFree=4191880/4192956
[pid=7065] ppid=7063 vsize=217340 CPUtime=0.69
/proc/7065/stat : 7065 (kcnfs-2006) R 7063 7065 5280 0 -1 4194304 9242 0 0 0 65 4 0 0 23 0 1 0 108425709 222556160 9227 18446744073709551615 134512640 135163436 4294956592 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/7065/statm: 54335 9228 47 158 0 54175 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 217340

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

Child status: 1
Real time (s): 0.719706
CPU time (s): 0.71789
CPU user time (s): 0.668898
CPU system time (s): 0.048992
CPU usage (%): 99.7477
Max. virtual memory (cumulated for all children) (KiB): 217340

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.668898
system time used= 0.048992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9382
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= 16

runsolver used 0.000999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Wed Apr 11 20:38:00 UTC 2007

IDJOB= 320757
IDBENCH= 20511
IDSOLVER= 113
FILE ID= node3/320757-1176323879

PBS_JOBID= 4516504

Free space on /tmp= 66549 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/babic/xinetd/itox_vc1130.cnf
COMMAND LINE= /tmp/evaluation/320757-1176323879/kcnfs-2006 /tmp/evaluation/320757-1176323879/instance-320757-1176323879.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-320757-1176323879 -o ROOT/results/node3/solver-320757-1176323879 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/320757-1176323879/kcnfs-2006 /tmp/evaluation/320757-1176323879/instance-320757-1176323879.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  1dc3830fa84fd706a44d8cbfb2c0c08c

RANDOM SEED= 729464467

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node3.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		: 3000.270
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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1765496 kB
Buffers:         32948 kB
Cached:         130044 kB
SwapCached:        480 kB
Active:         157700 kB
Inactive:        73804 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1765496 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:           11516 kB
Writeback:           0 kB
Mapped:          85520 kB
Slab:            44512 kB
Committed_AS:  4864752 kB
PageTables:       1800 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= 66549 MiB

End job on node3 on Wed Apr 11 20:38:01 UTC 2007