Trace number 320714

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
March KS 2007-02-08UNSAT 0.45893 0.460457

General information on the benchmark

Nameindustrial/babic/xinetd/
xinetd_vc56687.cnf
MD5SUM8ee40e47d0f78a39fcf5c18ad73a5bdd
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.196969
Satisfiable
(Un)Satisfiability was proved
Number of variables110822
Number of clauses286158
Sum of the clauses size694158
Maximum clause length3
Minimum clause length1
Number of clauses of size 113085
Number of clauses of size 2138146
Number of clauses of size 3134927
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.39/0.45	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.39/0.45	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.39/0.45	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.39/0.45	c main()::
0.39/0.45	c initFormula():: searching for DIMACS p-line....
0.39/0.45	c initFormula():: the DIMACS p-line indicates a CNF of 110822 variables and 286158 clauses.
0.39/0.45	c parseCNF():: parsing....
0.39/0.45	c parseCNF():: the CNF contains 13085 unary clauses.
0.39/0.45	c runParser():: parsing was successful, warming up engines...
0.39/0.45	c runParser():: conflicting unary clauses, so instance is unsatisfiable!
0.39/0.45	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node19/watcher-320714-1176323679 -o ROOT/results/node19/solver-320714-1176323679 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/320714-1176323679/march_ks /tmp/evaluation/320714-1176323679/instance-320714-1176323679.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: 0.90 0.97 0.99 3/77 13084
/proc/meminfo: memFree=1845104/2055920 swapFree=4192812/4192956
[pid=13084] ppid=13082 vsize=5728 CPUtime=0
/proc/13084/stat : 13084 (march_ks) R 13082 13084 11600 0 -1 4194304 605 0 0 0 0 0 0 0 18 0 1 0 80285323 5865472 590 18446744073709551615 134512640 135019032 4294956592 18446744073709551615 134662703 0 0 4096 0 0 0 0 17 1 0 0
/proc/13084/statm: 1432 594 45 123 0 1307 0

[startup+0.0192039 s]
/proc/loadavg: 0.90 0.97 0.99 3/77 13084
/proc/meminfo: memFree=1845104/2055920 swapFree=4192812/4192956
[pid=13084] ppid=13082 vsize=9820 CPUtime=0
/proc/13084/stat : 13084 (march_ks) R 13082 13084 11600 0 -1 4194304 1976 0 0 0 0 0 0 0 18 0 1 0 80285323 10055680 1961 18446744073709551615 134512640 135019032 4294956592 18446744073709551615 134662703 0 0 4096 0 0 0 0 17 1 0 0
/proc/13084/statm: 2488 1965 45 123 0 2363 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9820

[startup+0.101212 s]
/proc/loadavg: 0.90 0.97 0.99 3/77 13084
/proc/meminfo: memFree=1845104/2055920 swapFree=4192812/4192956
[pid=13084] ppid=13082 vsize=12576 CPUtime=0.09
/proc/13084/stat : 13084 (march_ks) R 13082 13084 11600 0 -1 4194304 2754 0 0 0 8 1 0 0 18 0 1 0 80285323 12877824 2739 18446744073709551615 134512640 135019032 4294956592 18446744073709551615 134684029 0 0 4096 0 0 0 0 17 1 0 0
/proc/13084/statm: 3144 2739 47 123 0 3019 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12576

[startup+0.301234 s]
/proc/loadavg: 0.90 0.97 0.99 3/77 13084
/proc/meminfo: memFree=1845104/2055920 swapFree=4192812/4192956
[pid=13084] ppid=13082 vsize=15084 CPUtime=0.29
/proc/13084/stat : 13084 (march_ks) R 13082 13084 11600 0 -1 4194304 3528 0 0 0 28 1 0 0 19 0 1 0 80285323 15446016 3513 18446744073709551615 134512640 135019032 4294956592 18446744073709551615 134662703 0 0 4096 0 0 0 0 17 1 0 0
/proc/13084/statm: 3771 3513 47 123 0 3646 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15084

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

[startup+0.401244 s]
/proc/loadavg: 0.90 0.97 0.99 3/77 13084
/proc/meminfo: memFree=1845104/2055920 swapFree=4192812/4192956
[pid=13084] ppid=13082 vsize=31924 CPUtime=0.39
/proc/13084/stat : 13084 (march_ks) R 13082 13084 11600 0 -1 4194304 5673 0 0 0 37 2 0 0 20 0 1 0 80285323 32690176 5656 18446744073709551615 134512640 135019032 4294956592 18446744073709551615 134558480 0 0 4096 0 0 0 0 17 1 0 0
/proc/13084/statm: 7981 5656 48 123 0 7856 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 31924

Child status: 20
Real time (s): 0.460457
CPU time (s): 0.45893
CPU user time (s): 0.420936
CPU system time (s): 0.037994
CPU usage (%): 99.6684
Max. virtual memory (cumulated for all children) (KiB): 31924

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.420936
system time used= 0.037994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7354
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= 9

runsolver used 0.003999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node19 on Wed Apr 11 20:34:39 UTC 2007

IDJOB= 320714
IDBENCH= 20510
IDSOLVER= 111
FILE ID= node19/320714-1176323679

PBS_JOBID= 4516489

Free space on /tmp= 66542 MiB

SOLVER NAME= March KS 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/babic/xinetd/xinetd_vc56687.cnf
COMMAND LINE= /tmp/evaluation/320714-1176323679/march_ks /tmp/evaluation/320714-1176323679/instance-320714-1176323679.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node19/watcher-320714-1176323679 -o ROOT/results/node19/solver-320714-1176323679 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/320714-1176323679/march_ks /tmp/evaluation/320714-1176323679/instance-320714-1176323679.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  8ee40e47d0f78a39fcf5c18ad73a5bdd

RANDOM SEED= 290026910

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node19.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		: 3000.213
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		: 3000.213
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:       1845512 kB
Buffers:         15468 kB
Cached:          84968 kB
SwapCached:          0 kB
Active:          30880 kB
Inactive:       123512 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1845512 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            7412 kB
Writeback:           0 kB
Mapped:          72844 kB
Slab:            41544 kB
Committed_AS:  2670224 kB
PageTables:       1784 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= 66542 MiB

End job on node19 on Wed Apr 11 20:34:40 UTC 2007