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 1983

Launcher Data

LAUNCH ON wulflinc22 THE 2005-09-18 18:00:15 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=1440 boxname=wulflinc22 idbench=268 idsolver=2 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  3682f861aa46be9df7d6903cb35a0651  /oldhome/oroussel/tmp/wulflinc22/normalized-g9x9.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc22/normalized-g9x9.opb
IDLAUNCH: 1440
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.031
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.031
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:        917768 kB
Buffers:         34388 kB
Cached:          54836 kB
SwapCached:        536 kB
Active:          66636 kB
Inactive:        25128 kB
HighTotal:      131008 kB
HighFree:        74172 kB
LowTotal:       903652 kB
LowFree:        843596 kB
SwapTotal:     2097892 kB
SwapFree:      2096832 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5864 kB
Slab:            19424 kB
Committed_AS:    64168 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-18 18:00:16 (client local time) WITH STATUS 10 IN 1.07584 SECONDS
stats: 1440 0 1.07584 10

Solver Data

c Decisions:	5918
c Implications:	47805
c RUNTIME:	1.00085s
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 
s SATISFIABLE

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/30193/stat): 30193 (galena) R 30192 30193 21452 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 1843247807 1015808 2 4294967295 134512640 135412752 3221224576 3221224576 134512896 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/30193/statm): 248 2 241 241 0 7 0
[pid=30193] vsize: 992
open syscall for file /oldhome/oroussel/tmp/wulflinc22/normalized-g9x9.opb
One traced child (pid=30193) exited with status: 10
All traced children have exited ! Game is over.

Child status: 10
Real time (s): 1.23486
CPU time (s): 1.07584
CPU user time (s): 1.00385
CPU system time (s): 0.071989
CPU usage (%): 87.1218
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

Verifier:	OK	23