PB'05 competition: run trace

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:

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.
SOLVER DATA
This is the output of the solver (stdout and stderr).
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.
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

Name	normalized-opb/web/uclid_pb_benchmarks/normalized-blast-floppy1-2.ucl.opb
MD5SUM	b3c155c565dab5bdc0d92a5205f984ea
Bench Category	no optimization function (SAT)
Has Objective Function	NO
Satisfiable	NO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
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	772
Number of bits of the biggest number in a constraint	10
Biggest sum of numbers in a constraint	2305
Number of bits of the biggest sum of numbers	12
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.025995
Number of variables	152
Total number of constraints	127
Number of constraints which are clauses	77
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	50
Minimum length of a constraint	1
Maximum length of a constraint	19

Trace number 4409

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc21 THE 2005-04-13 17:18:43 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2448 boxname=wulflinc21 idbench=272 idsolver=9 numberseed=0
MD5SUM SOLVER: daf345f6fbf228671abfac48013b9cac  /oldhome/oroussel/solvers/sat4jPseudo.jar
MD5SUM BENCH:  b3c155c565dab5bdc0d92a5205f984ea  /oldhome/oroussel/tmp/wulflinc21/normalized-blast-floppy1-2.ucl.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudo.jar /oldhome/oroussel/tmp/wulflinc21/normalized-blast-floppy1-2.ucl.opb
IDLAUNCH: 2448
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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		: 451.161
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:        924528 kB
Buffers:         24988 kB
Cached:          65452 kB
SwapCached:          0 kB
Active:          32652 kB
Inactive:        60596 kB
HighTotal:      131008 kB
HighFree:        62020 kB
LowTotal:       903652 kB
LowFree:        862508 kB
SwapTotal:     2097892 kB
SwapFree:      2097804 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           6928 kB
Slab:            11268 kB
Committed_AS:    63796 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-13 17:18:47 (client local time) WITH STATUS 1 IN  SECONDS
stats: 2448 7  1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c solving /oldhome/oroussel/tmp/wulflinc21/normalized-blast-floppy1-2.ucl.opb
c reading problem 
c [nbvar=152]
c [nbconstr=127]
c time 0.723
c #vars     152
c #clauses  127
c starts	: 0
c conflicts	: 0
c decisions	: 0
c propagations	: 0
c inspects	: 0
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 0
c root simplifications	: 0
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 2
	at org.sat4j.minisat.constraints.pb.MinWatchPb.propagate(MinWatchPb.java:323)
	at org.sat4j.minisat.core.Solver.propagate(Solver.java:523)
	at org.sat4j.minisat.core.Solver.search(Solver.java:606)
	at org.sat4j.minisat.core.Solver.isSatisfiable(Solver.java:793)
	at org.sat4j.minisat.core.Solver.isSatisfiable(Solver.java:744)
	at org.sat4j.LanceurPseudo2005.main(LanceurPseudo2005.java:83)
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Raw data (loadavg): 1.06 1.02 0.95 2/55 32023
Raw data (stat): 32023 (runsolver) R 32022 30927 30926 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 354956851 1052672 99 4294967295 134512640 135381576 3221224432 3221219680 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+3.79876 s]
Raw data (loadavg): 1.22 1.06 0.96 1/54 32034
Raw data (stat): 32023 (runsolver) R 32022 30927 30926 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 354956851 1052672 99 4294967295 134512640 135381576 3221224432 3221219680 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child status: 1
Real time (s): 3.79844
CPU time (s): 2.00069
CPU user time (s): 1.87471
CPU system time (s): 0.12598
CPU usage (%): 52.6715
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####