Trace number 318112

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 SMP? (exit code) 0.127979 0.128825

General information on the benchmark

Nameindustrial/fuhs/hard/
AProVE07-26.cnf
MD5SUM0cf155110f71a43081221b427d368ee8
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables21734
Number of clauses79766
Sum of the clauses size211276
Maximum clause length225
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 236916
Number of clauses of size 338055
Number of clauses of size 43077
Number of clauses of size 5748
Number of clauses of size over 5969

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/318112-1172765884/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
0.09/0.12	c this formula cannot be solved by kcnfs-smp
0.09/0.12

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-318112-1172765884 -o ROOT/results/node3/solver-318112-1172765884 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/318112-1172765884/kcnfs-smp /tmp/evaluation/318112-1172765884/instance-318112-1172765884.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: 0.05 0.01 0.00 3/77 17946
/proc/meminfo: memFree=1073384/2055920 swapFree=4191880/4192956
[pid=17946] ppid=17944 vsize=180916 CPUtime=0
/proc/17946/stat : 17946 (kcnfs-smp) R 17944 17946 17793 0 -1 4194304 130 0 0 0 0 0 0 0 18 0 1 0 296543219 185257984 115 18446744073709551615 134512640 135172044 4294956624 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/17946/statm: 45229 115 48 160 0 45067 0

[startup+0.098161 s]
/proc/loadavg: 0.05 0.01 0.00 3/77 17946
/proc/meminfo: memFree=1073384/2055920 swapFree=4191880/4192956
[pid=17946] ppid=17944 vsize=186064 CPUtime=0.09
/proc/17946/stat : 17946 (kcnfs-smp) R 17944 17946 17793 0 -1 4194304 1397 0 0 0 8 1 0 0 18 0 1 0 296543219 190529536 1382 18446744073709551615 134512640 135172044 4294956624 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/17946/statm: 46516 1382 48 160 0 46354 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186064

[startup+0.101162 s]
/proc/loadavg: 0.05 0.01 0.00 3/77 17946
/proc/meminfo: memFree=1073384/2055920 swapFree=4191880/4192956
[pid=17946] ppid=17944 vsize=186196 CPUtime=0.09
/proc/17946/stat : 17946 (kcnfs-smp) R 17944 17946 17793 0 -1 4194304 1436 0 0 0 8 1 0 0 18 0 1 0 296543219 190664704 1421 18446744073709551615 134512640 135172044 4294956624 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/17946/statm: 46549 1421 48 160 0 46387 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186196

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

Child status: 1
Real time (s): 0.128825
CPU time (s): 0.127979
CPU user time (s): 0.111982
CPU system time (s): 0.015997
CPU usage (%): 99.3433
Max. virtual memory (cumulated for all children) (KiB): 186196

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.111982
system time used= 0.015997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1766
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 0.000999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Thu Mar  1 16:18:04 UTC 2007

IDJOB= 318112
IDBENCH= 20403
IDSOLVER= 112
FILE ID= node3/318112-1172765884

PBS_JOBID= 4009740

Free space on /tmp= 66532 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/fuhs/hard/AProVE07-26.cnf
COMMAND LINE= /tmp/evaluation/318112-1172765884/kcnfs-smp /tmp/evaluation/318112-1172765884/instance-318112-1172765884.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-318112-1172765884 -o ROOT/results/node3/solver-318112-1172765884 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/318112-1172765884/kcnfs-smp /tmp/evaluation/318112-1172765884/instance-318112-1172765884.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  0cf155110f71a43081221b427d368ee8

RANDOM SEED= 669331527

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		: 3000.241
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		: 3000.241
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:       1073792 kB
Buffers:         48924 kB
Cached:         809536 kB
SwapCached:        448 kB
Active:         358836 kB
Inactive:       553592 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1073792 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            4684 kB
Writeback:           0 kB
Mapped:          63876 kB
Slab:            55324 kB
Committed_AS:  1274364 kB
PageTables:       1656 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= 66532 MiB

End job on node3 on Thu Mar  1 16:18:04 UTC 2007