Trace number 318830

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) 0.763882 0.765538

General information on the benchmark

Nameindustrial/babic/hsatv17/
hsat_vc11944.cnf
MD5SUMeef911a782905fce2d6d67e1fb443023
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.05084
Satisfiable
(Un)Satisfiability was proved
Number of variables178730
Number of clauses508210
Sum of the clauses size1309303
Maximum clause length3
Minimum clause length1
Number of clauses of size 121343
Number of clauses of size 2172641
Number of clauses of size 3314226
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/318830-1176322281/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
0.69/0.75	c this formula cannot been solved by kcnfs
0.69/0.75

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/node76/watcher-318830-1176322281 -o ROOT/results/node76/solver-318830-1176322281 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/318830-1176322281/kcnfs-2006 /tmp/evaluation/318830-1176322281/instance-318830-1176322281.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 0.95 0.98 3/69 26324
/proc/meminfo: memFree=1826200/2055888 swapFree=4096420/4096564
[pid=26324] ppid=26322 vsize=181040 CPUtime=0
/proc/26324/stat : 26324 (kcnfs-2006) R 26322 26324 25407 0 -1 4194304 140 0 0 0 0 0 0 0 20 0 1 0 80142740 185384960 126 18446744073709551615 134512640 135163436 4294956592 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/26324/statm: 45260 127 47 158 0 45100 0

[startup+0.0839301 s]
/proc/loadavg: 0.85 0.95 0.98 3/69 26324
/proc/meminfo: memFree=1826200/2055888 swapFree=4096420/4096564
[pid=26324] ppid=26322 vsize=185792 CPUtime=0.07
/proc/26324/stat : 26324 (kcnfs-2006) R 26322 26324 25407 0 -1 4194304 1327 0 0 0 7 0 0 0 20 0 1 0 80142740 190251008 1313 18446744073709551615 134512640 135163436 4294956592 18446744073709551615 134931379 0 0 4096 0 0 0 0 17 1 0 0
/proc/26324/statm: 46448 1314 47 158 0 46288 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 185792

[startup+0.101932 s]
/proc/loadavg: 0.85 0.95 0.98 3/69 26324
/proc/meminfo: memFree=1826200/2055888 swapFree=4096420/4096564
[pid=26324] ppid=26322 vsize=186716 CPUtime=0.09
/proc/26324/stat : 26324 (kcnfs-2006) R 26322 26324 25407 0 -1 4194304 1584 0 0 0 9 0 0 0 20 0 1 0 80142740 191197184 1570 18446744073709551615 134512640 135163436 4294956592 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/26324/statm: 46679 1570 47 158 0 46519 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186716

[startup+0.30197 s]
/proc/loadavg: 0.85 0.95 0.98 3/69 26324
/proc/meminfo: memFree=1826200/2055888 swapFree=4096420/4096564
[pid=26324] ppid=26322 vsize=198068 CPUtime=0.29
/proc/26324/stat : 26324 (kcnfs-2006) R 26322 26324 25407 0 -1 4194304 4409 0 0 0 27 2 0 0 22 0 1 0 80142740 202821632 4395 18446744073709551615 134512640 135163436 4294956592 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/26324/statm: 49517 4395 47 158 0 49357 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 198068

[startup+0.701049 s]
/proc/loadavg: 0.85 0.95 0.98 3/69 26324
/proc/meminfo: memFree=1826200/2055888 swapFree=4096420/4096564
[pid=26324] ppid=26322 vsize=220376 CPUtime=0.69
/proc/26324/stat : 26324 (kcnfs-2006) R 26322 26324 25407 0 -1 4194304 9994 0 0 0 65 4 0 0 25 0 1 0 80142740 225665024 9980 18446744073709551615 134512640 135163436 4294956592 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/26324/statm: 55094 9981 47 158 0 54934 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 220376

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

Child status: 1
Real time (s): 0.765538
CPU time (s): 0.763882
CPU user time (s): 0.703892
CPU system time (s): 0.05999
CPU usage (%): 99.7837
Max. virtual memory (cumulated for all children) (KiB): 220376

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.703892
system time used= 0.05999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10761
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= 2

runsolver used 0.003999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node76 on Wed Apr 11 20:11:22 UTC 2007

IDJOB= 318830
IDBENCH= 20464
IDSOLVER= 113
FILE ID= node76/318830-1176322281

PBS_JOBID= 4516714

Free space on /tmp= 66640 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/babic/hsatv17/hsat_vc11944.cnf
COMMAND LINE= /tmp/evaluation/318830-1176322281/kcnfs-2006 /tmp/evaluation/318830-1176322281/instance-318830-1176322281.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-318830-1176322281 -o ROOT/results/node76/solver-318830-1176322281 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/318830-1176322281/kcnfs-2006 /tmp/evaluation/318830-1176322281/instance-318830-1176322281.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  eef911a782905fce2d6d67e1fb443023

RANDOM SEED= 515305394

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node76.alineos.net 2.6.9-34.ELsmp #1 SMP Thu Mar 9 06:23:23 GMT 2006 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		: 3000.277
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	: 6006.17
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		: 3000.277
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	: 5999.42
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055888 kB
MemFree:       1826544 kB
Buffers:          8468 kB
Cached:         111484 kB
SwapCached:          0 kB
Active:          49372 kB
Inactive:        86536 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1826544 kB
SwapTotal:     4096564 kB
SwapFree:      4096420 kB
Dirty:           13008 kB
Writeback:           0 kB
Mapped:          26376 kB
Slab:            79864 kB
Committed_AS:    93780 kB
PageTables:       1424 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66640 MiB

End job on node76 on Wed Apr 11 20:11:23 UTC 2007