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/sorensson/garden/normalized-g9x9.opb
MD5SUM3682f861aa46be9df7d6903cb35a0651
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 20
Optimality of the best value was proved YES
Number of terms in the objective function 81
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 81
Number of bits of the sum of numbers in the objective function 7
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 81
Number of bits of the biggest sum of numbers7
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark6.592
Number of variables81
Total number of constraints81
Number of constraints which are clauses81
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint3
Maximum length of a constraint5

Trace number 2180

Launcher Data

LAUNCH ON wulflinc8 THE 2005-09-18 18:18:42 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2612 boxname=wulflinc8 idbench=268 idsolver=3 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  3682f861aa46be9df7d6903cb35a0651  /oldhome/oroussel/tmp/wulflinc8/normalized-g9x9.opb
REAL COMMAND:  minisat+_script /oldhome/oroussel/tmp/wulflinc8/normalized-g9x9.opb
IDLAUNCH: 2612
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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	: 2
cpu MHz		: 451.007
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	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        918804 kB
Buffers:         34848 kB
Cached:          56432 kB
SwapCached:        792 kB
Active:          67268 kB
Inactive:        26652 kB
HighTotal:      131008 kB
HighFree:        70728 kB
LowTotal:       903652 kB
LowFree:        848076 kB
SwapTotal:     2097136 kB
SwapFree:      2095876 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5752 kB
Slab:            16300 kB
Committed_AS:    64132 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-18 18:18:49 (client local time) WITH STATUS 30 IN 6.592 SECONDS
stats: 2612 0 6.592 30

Solver Data

c Parsing PB file...
c Converting 81 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): .................................................................................
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |      81      369 |      27       0        0     nan |  0.000 % |
c ==============================================================================
c Found solution: 27
c ---[   0]---> Sorter-cost: 1728     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |    1989     4836 |     663       0        0     nan |  0.000 % |
c ==============================================================================
c Found solution: 26
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        82 |    1995     4867 |     665      80     1121    14.0 |  0.000 % |
c |       182 |    1995     4867 |     731     180     2470    13.7 |  1.192 % |
c |       332 |    1988     4852 |     804     329     4769    14.5 |  1.416 % |
c |       558 |    1988     4852 |     885     555     8017    14.4 |  1.416 % |
c |       895 |    1988     4852 |     973     892    12277    13.8 |  1.416 % |
c ==============================================================================
c Found solution: 22
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |      1356 |    2020     4936 |     673     842    10937    13.0 |  1.416 % |
c |      1456 |    2012     4920 |     740     520     5408    10.4 |  1.762 % |
c |      1607 |    1996     4884 |     814     661     7323    11.1 |  2.496 % |
c ==============================================================================
c Found solution: 21
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |      1800 |    1959     4786 |     653     807     8760    10.9 |  2.496 % |
c |      1900 |    1959     4786 |     718     504     4452     8.8 |  4.546 % |
c ==============================================================================
c Found solution: 20
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |      1915 |    1971     4818 |     657     519     4716     9.1 |  4.546 % |
c |      2015 |    1971     4818 |     722     619     6346    10.3 |  4.731 % |
c |      2165 |    1971     4818 |     794     769     8952    11.6 |  4.731 % |
c |      2391 |    1971     4818 |     874     995    13232    13.3 |  4.731 % |
c |      2728 |    1971     4818 |     961     835    10695    12.8 |  4.731 % |
c |      3234 |    1971     4818 |    1058     762     8287    10.9 |  4.731 % |
c |      3995 |    1963     4802 |    1163     938    10245    10.9 |  5.022 % |
c |      5134 |    1963     4802 |    1280    1384    19349    14.0 |  5.022 % |
c |      6842 |    1963     4802 |    1408     879     9469    10.8 |  5.022 % |
c |      9404 |    1960     4795 |    1549    1099    11035    10.0 |  5.168 % |
c |     13248 |    1960     4795 |    1704    1492    15094    10.1 |  5.168 % |
c |     19015 |    1923     4701 |    1874    1573    17017    10.8 |  6.624 % |
c |     27664 |    1884     4604 |    2061    1380    11212     8.1 |  8.081 % |
c ==============================================================================
c Optimal solution: 20
s OPTIMUM FOUND
v x1 -x2 -x3 -x4 x5 -x6 -x7 x8 -x9 -x10 -x11 x12 -x13 -x14 -x15 -x16 x17 -x18 x19 -x20 -x21 -x22 -x23 x24 -x25 -x26 -x27 -x28 -x29 -x30 x31 -x32 -x33 -x34 -x35 x36 -x37 x38 -x39 -x40 -x41 -x42 x43 -x44 -x45 -x46 -x47 -x48 -x49 x50 -x51 x52 -x53 -x54 x55 -x56 x57 -x58 -x59 -x60 -x61 -x62 x63 -x64 -x65 -x66 -x67 -x68 x69 -x70 -x71 -x72 -x73 x74 -x75 x76 -x77 -x78 -x79 x80 -x81
c _______________________________________________________________________________
c 
c restarts              : 25
c conflicts             : 28106          (4296 /sec)
c decisions             : 38538          (5891 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 6.542 s
c _______________________________________________________________________________

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/6882/stat): 6882 (minisat+_script) R 6881 6882 27660 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1771565254 712704 3 4294967295 134512640 135087896 3221224512 3221224512 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/6882/statm): 174 3 169 147 0 27 0
[pid=6882] vsize: 696
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libtermcap.so.2
open syscall for file tls/i686/libtermcap.so.2
open syscall for file tls/mmx/libtermcap.so.2
open syscall for file tls/libtermcap.so.2
open syscall for file i686/mmx/libtermcap.so.2
open syscall for file i686/libtermcap.so.2
open syscall for file mmx/libtermcap.so.2
open syscall for file libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/i686/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/i686/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/i686/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/libtermcap.so.2
open syscall for file /etc/ld.so.cache
open syscall for file /lib/libtermcap.so.2
open syscall for file tls/i686/mmx/libdl.so.2
open syscall for file tls/i686/libdl.so.2
open syscall for file tls/mmx/libdl.so.2
open syscall for file tls/libdl.so.2
open syscall for file i686/mmx/libdl.so.2
open syscall for file i686/libdl.so.2
open syscall for file mmx/libdl.so.2
open syscall for file libdl.so.2
open syscall for file /oldhome/oroussel/lib/libdl.so.2
open syscall for file /lib/libdl.so.2
open syscall for file tls/i686/mmx/libc.so.6
open syscall for file tls/i686/libc.so.6
open syscall for file tls/mmx/libc.so.6
open syscall for file tls/libc.so.6
open syscall for file i686/mmx/libc.so.6
open syscall for file i686/libc.so.6
open syscall for file mmx/libc.so.6
open syscall for file libc.so.6
open syscall for file /oldhome/oroussel/lib/libc.so.6
open syscall for file /lib/tls/libc.so.6
open syscall for file /dev/tty
open syscall for file /etc/mtab
open syscall for file /proc/meminfo
open syscall for file /oldhome/oroussel/solvers/minisat+_script
New process pid=6883
New process pid=6884
New process pid=6885
execve syscall for /bin/sed executable
One traced child (pid=6884) exited with status: 0
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libc.so.6
open syscall for file tls/i686/libc.so.6
open syscall for file tls/mmx/libc.so.6
open syscall for file tls/libc.so.6
open syscall for file i686/mmx/libc.so.6
open syscall for file i686/libc.so.6
open syscall for file mmx/libc.so.6
open syscall for file libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/i686/libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/libc.so.6
open syscall for file /oldhome/oroussel/lib/i686/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/i686/libc.so.6
open syscall for file /oldhome/oroussel/lib/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/libc.so.6
open syscall for file /etc/ld.so.cache
open syscall for file /lib/tls/libc.so.6
One traced child (pid=6885) exited with status: 0
One traced child (pid=6883) exited with status: 0
New process pid=6886
execve syscall for /oldhome/oroussel/solvers/minisat+_64-bit_static executable
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc8/normalized-g9x9.opb
One traced child (pid=6886) exited with status: 30
One traced child (pid=6882) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 6.64068
CPU time (s): 6.592
CPU user time (s): 6.547
CPU system time (s): 0.044993
CPU usage (%): 99.267
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

Verifier:	OK	20