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 in four parts:
  1. 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 provide some useful information on the computer.
  2. 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 !
  3. 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 1200 seconds. 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 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    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.
  4. 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.

General information on the benchmark

Namesubmitted/aloul/FPGA_SAT05/normalized-fpga25_25_sat_pb.cnf.cr.opb
MD5SUM54139ff5e28c6041ec6c692b0d10f866
Bench Categoryno optimization function (SAT)
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 26
Number of bits of the biggest sum of numbers5
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.352946
Number of variables938
Total number of constraints700
Number of constraints which are clauses650
Number of constraints which are cardinality constraints (but not clauses)50
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint12
Maximum length of a constraint25

Trace number 9482

Launcher Data

LAUNCH ON wulflinc27 THE 2005-09-23 14:10:42 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8245 boxname=wulflinc27 idbench=41 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  54139ff5e28c6041ec6c692b0d10f866  /oldhome/oroussel/tmp/wulflinc27/normalized-fpga25_25_sat_pb.cnf.cr.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc27/normalized-fpga25_25_sat_pb.cnf.cr.opb
IDLAUNCH: 8245
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.039
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.039
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        944396 kB
Buffers:         10764 kB
Cached:          62676 kB
SwapCached:          0 kB
Active:          44852 kB
Inactive:        31432 kB
HighTotal:      131008 kB
HighFree:        63896 kB
LowTotal:       903652 kB
LowFree:        880500 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8376 kB
Committed_AS:    63656 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 14:10:50 (client local time) WITH STATUS 10 IN 6.42902 SECONDS
stats: 8245 0 6.42902 10

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...

c Decision: 888/2714	Time: 4.74128/86400
c Decision: 888/2714	Time: 5.40718/86400
c Decision: 888/2714	Time: 5.83911/86400
s SATISFIABLE
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-v715 v716 -v717 -v718 -v719 -v72 -v720 -v721 -v722 -v723 -v724 -v725 v726 -v727 -v728 -v729 -v73 -v730 -v731 -v732 -v733 -v734 -v735 v736 -v737 -v738 -v739 -v74 -v740 -v741 -v742 -v743 -v744 -v745 -v746 -v747 -v748 v749 -v75 -v750 -v751 -v752 -v753 -v754 -v755 -v756 -v757 -v758 -v759 -v76 -v760 -v761 -v762 -v763 -v764 -v765 -v766 v767 -v768 -v769 -v77 -v770 -v771 -v772 -v773 -v774 -v775 -v776 -v777 -v778 v779 -v78 -v780 -v781 -v782 -v783 -v784 -v785 -v786 v787 -v788 -v789 -v79 -v790 -v791 -v792 -v793 -v794 -v795 -v796 -v797 -v798 -v799 -v8 -v80 -v800 -v801 v802 -v803 -v804 -v805 -v806 -v807 -v808 -v809 -v81 -v810 -v811 -v812 -v813 -v814 -v815 -v816 -v817 -v818 -v819 -v82 -v820 v821 -v822 -v823 v824 -v825 -v826 -v827 -v828 -v829 -v83 -v830 -v831 -v832 -v833 -v834 -v835 -v836 -v837 v838 -v839 -v84 -v840 -v841 -v842 -v843 -v844 -v845 -v846 -v847 v848 -v849 -v85 -v850 -v851 -v852 -v853 -v854 -v855 -v856 -v857 -v858 -v859 -v86 -v860 -v861 -v862 -v863 -v864 -v865 v866 -v867 -v868 -v869 -v87 -v870 -v871 -v872 -v873 -v874 v875 -v876 -v877 -v878 -v879 -v88 -v880 -v881 -v882 -v883 -v884 -v885 -v886 -v887 -v888 -v889 -v89 -v890 -v891 -v892 -v893 -v894 -v895 -v896 v897 -v898 -v899 -v9 -v90 -v900 -v901 -v902 -v903 -v904 -v905 -v906 -v907 v908 -v909 -v91 -v910 -v911 -v912 -v913 -v914 -v915 -v916 -v917 -v918 -v919 -v92 -v920 -v921 -v922 -v923 v924 -v925 -v926 -v927 -v928 -v929 -v93 -v930 -v931 -v932 v933 -v934 -v935 -v936 -v937 -v938 v94 -v95 -v96 -v97 -v98 -v99

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/7425/stat): 7425 (pb2sat) R 7424 7425 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 20765426 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/7425/statm): 373 2 364 364 0 9 0
[pid=7425] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc27/normalized-fpga25_25_sat_pb.cnf.cr.opb
One traced child (pid=7425) exited with status: 10
All traced children have exited ! Game is over.

Child status: 10
Real time (s): 7.70407
CPU time (s): 6.42902
CPU user time (s): 5.80012
CPU system time (s): 0.628904
CPU usage (%): 83.4496
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

Verifier:	OK	0