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/mps-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-gfrd-pnc.opb
MD5SUM	f72ff83237646045e70c745d89efd15d
Bench Category	optimization, big integers (OPTBIGINT)
Has Objective Function	YES
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	18728
Biggest coefficient in the objective function	1050225536
Number of bits for the biggest coefficient in the objective function	30
Sum of the numbers in the objective function	456113132475
Number of bits of the sum of numbers in the objective function	39
Biggest number in a constraint	1050225536
Number of bits of the biggest number in a constraint	30
Biggest sum of numbers in a constraint	456113132475
Number of bits of the biggest sum of numbers	39
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.146977
Number of variables	18774
Total number of constraints	874
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	874
Minimum length of a constraint	8
Maximum length of a constraint	168

Trace number 19787

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-04-21 19:51:12 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=15856 boxname=wulflinc2 idbench=1220 idsolver=9 numberseed=0
MD5SUM SOLVER: daf345f6fbf228671abfac48013b9cac  /oldhome/oroussel/solvers/sat4jPseudo.jar
MD5SUM BENCH:  f72ff83237646045e70c745d89efd15d  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-gfrd-pnc.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudo.jar /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-gfrd-pnc.opb
IDLAUNCH: 15856
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        880068 kB
Buffers:         24732 kB
Cached:         106720 kB
SwapCached:       3324 kB
Active:          46312 kB
Inactive:        89888 kB
HighTotal:      131008 kB
HighFree:        25536 kB
LowTotal:       903652 kB
LowFree:        854532 kB
SwapTotal:     2097136 kB
SwapFree:      2092928 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5108 kB
Slab:            12756 kB
Committed_AS:    71784 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-21 19:53:04 (client local time) WITH STATUS 20 IN 123.841 SECONDS
stats: 15856 7 123.841 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c solving /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-gfrd-pnc.opb
c reading problem 
c [nbvar=18774]
c [nbconstr=874]
org.sat4j.specs.ContradictionException: non satisfiable constraint
	at org.sat4j.minisat.constraints.pb.MinWatchPb.computeWatches(MinWatchPb.java:177)
	at org.sat4j.minisat.constraints.pb.MinWatchPb.minWatchPbNew(MinWatchPb.java:259)
	at org.sat4j.minisat.constraints.pb.MinWatchPb.minWatchPbNew(MinWatchPb.java:221)
	at org.sat4j.minisat.constraints.PBMinDataStructure.constraintFactory(PBMinDataStructure.java:35)
	at org.sat4j.minisat.constraints.AbstractPBDataStructureFactory.createPseudoBooleanConstraint(AbstractPBDataStructureFactory.java:76)
	at org.sat4j.minisat.core.Solver.addPseudoBoolean(Solver.java:284)
	at org.sat4j.reader.OPBReader2005.endConstraint(OPBReader2005.java:139)
	at org.sat4j.reader.OPBReader2005.readConstraint(OPBReader2005.java:563)
	at org.sat4j.reader.OPBReader2005.parse(OPBReader2005.java:593)
	at org.sat4j.reader.OPBReader2005.parseInstance(OPBReader2005.java:616)
	at org.sat4j.reader.OPBReader2005.parseInstance(OPBReader2005.java:605)
	at org.sat4j.LanceurPseudo2005.readProblem(LanceurPseudo2005.java:61)
	at org.sat4j.LanceurPseudo2005.main(LanceurPseudo2005.java:73)
org.sat4j.specs.ContradictionException: non satisfiable constraint
	at org.sat4j.minisat.constraints.pb.MinWatchPb.computeWatches(MinWatchPb.java:177)
	at org.sat4j.minisat.constraints.pb.MinWatchPb.minWatchPbNew(MinWatchPb.java:259)
	at org.sat4j.minisat.constraints.pb.MinWatchPb.minWatchPbNew(MinWatchPb.java:221)
	at org.sat4j.minisat.constraints.PBMinDataStructure.constraintFactory(PBMinDataStructure.java:35)
	at org.sat4j.minisat.constraints.AbstractPBDataStructureFactory.createPseudoBooleanConstraint(AbstractPBDataStructureFactory.java:76)
	at org.sat4j.minisat.core.Solver.addPseudoBoolean(Solver.java:284)
	at org.sat4j.reader.OPBReader2005.endConstraint(OPBReader2005.java:139)
	at org.sat4j.reader.OPBReader2005.readConstraint(OPBReader2005.java:563)
	at org.sat4j.reader.OPBReader2005.parse(OPBReader2005.java:593)
	at org.sat4j.reader.OPBReader2005.parseInstance(OPBReader2005.java:616)
	at org.sat4j.reader.OPBReader2005.parseInstance(OPBReader2005.java:605)
	at org.sat4j.LanceurPseudo2005.readProblem(LanceurPseudo2005.java:61)
	at org.sat4j.LanceurPseudo2005.main(LanceurPseudo2005.java:73)
c time 107.083
c #vars     18774
c #clauses  1403
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
c Total CPU time (ms) : 110.364
s UNSATISFIABLE
#### 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): 0.87 0.95 0.90 2/54 4258
Raw data (stat): 4258 (runsolver) R 4257 20937 20936 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 489518694 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+10.005 s]
Raw data (loadavg): 0.89 0.96 0.91 2/63 4267
Raw data (stat): 4258 (java) R 4257 20937 20936 0 -1 0 17982 0 1 0 882 43 0 0 25 0 10 0 489518694 853229568 19053 4294967295 134512640 134569956 3221224400 3221214472 1074489757 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 208308 19053 13073 16 0 208292 0
vsize: 833232
[startup+20.0122 s]
Raw data (loadavg): 0.91 0.96 0.91 2/63 4267
Raw data (stat): 4258 (java) R 4257 20937 20936 0 -1 0 17983 0 1 0 1771 44 0 0 17 0 10 0 489518694 853958656 19728 4294967295 134512640 134569956 3221224400 3221214824 1131205514 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 208486 19728 13073 16 0 208470 0
vsize: 833944
[startup+30.0126 s]
Raw data (loadavg): 0.92 0.96 0.91 2/63 4267
Raw data (stat): 4258 (java) R 4257 20937 20936 0 -1 0 17983 0 1 0 2674 44 0 0 25 0 10 0 489518694 853958656 20157 4294967295 134512640 134569956 3221224400 3221214812 1080204031 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 208486 20157 13073 16 0 208470 0
vsize: 833944
[startup+40.0185 s]
Raw data (loadavg): 0.93 0.96 0.91 2/63 4267
Raw data (stat): 4258 (java) R 4257 20937 20936 0 -1 0 17983 0 1 0 3604 44 0 0 25 0 10 0 489518694 853958656 20391 4294967295 134512640 134569956 3221224400 3221214812 1080204031 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 208486 20391 13073 16 0 208470 0
vsize: 833944
[startup+50.0264 s]
Raw data (loadavg): 0.94 0.96 0.91 2/63 4267
Raw data (stat): 4258 (java) R 4257 20937 20936 0 -1 0 17983 0 1 0 4539 44 0 0 25 0 10 0 489518694 853958656 20509 4294967295 134512640 134569956 3221224400 3221214812 1080204031 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 208486 20509 13073 16 0 208470 0
vsize: 833944
[startup+60.0268 s]
Raw data (loadavg): 0.95 0.96 0.91 2/63 4267
Raw data (stat): 4258 (java) R 4257 20937 20936 0 -1 0 17983 0 1 0 5468 44 0 0 25 0 10 0 489518694 853958656 20613 4294967295 134512640 134569956 3221224400 3221214824 1131204042 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 208486 20613 13073 16 0 208470 0
vsize: 833944
[startup+70.0286 s]
Raw data (loadavg): 0.96 0.96 0.91 2/63 4267
Raw data (stat): 4258 (java) R 4257 20937 20936 0 -1 0 17983 0 1 0 6413 45 0 0 25 0 10 0 489518694 853590016 20761 4294967295 134512640 134569956 3221224400 3221214700 1079677938 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 208396 20761 13073 16 0 208380 0
vsize: 833584
[startup+80.0312 s]
Raw data (loadavg): 0.96 0.96 0.91 2/63 4267
Raw data (stat): 4258 (java) R 4257 20937 20936 0 -1 0 17983 0 1 0 7361 45 0 0 25 0 10 0 489518694 853590016 20839 4294967295 134512640 134569956 3221224400 3221214804 1080204160 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 208396 20839 13073 16 0 208380 0
vsize: 833584
[startup+90.0355 s]
Raw data (loadavg): 0.97 0.96 0.91 2/63 4267
Raw data (stat): 4258 (java) R 4257 20937 20936 0 -1 0 17983 0 1 0 8308 45 0 0 24 0 10 0 489518694 853590016 20915 4294967295 134512640 134569956 3221224400 3221214256 1077558376 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 208396 20915 13073 16 0 208380 0
vsize: 833584
[startup+100.038 s]
Raw data (loadavg): 0.97 0.96 0.91 4/63 4267
Raw data (stat): 4258 (java) R 4257 20937 20936 0 -1 0 17996 0 1 0 9245 45 0 0 25 0 10 0 489518694 857452544 21794 4294967295 134512640 134569956 3221224400 3221213360 1130894944 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 209339 21794 13073 16 0 209323 0
vsize: 837356
[startup+110.058 s]
Raw data (loadavg): 1.28 1.03 0.93 4/64 4268
Raw data (stat): 4258 (java) R 4257 20937 20936 0 -1 0 18138 0 1 0 10097 46 0 0 25 0 11 0 489518694 878493696 26776 4294967295 134512640 134569956 3221224400 3221214696 1130863944 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 214476 26776 13073 16 0 214460 0
vsize: 857904
[startup+111.123 s]
Raw data (loadavg): 1.28 1.03 0.93 1/53 4269
Raw data (stat): 4258 (java) R 4257 20937 20936 0 -1 0 18138 0 1 0 10097 46 0 0 25 0 11 0 489518694 878493696 26776 4294967295 134512640 134569956 3221224400 3221214696 1130863944 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 214476 26776 13073 16 0 214460 0
vsize: 0

Child status: 20
Real time (s): 111.123
CPU time (s): 123.841
CPU user time (s): 122.863
CPU system time (s): 0.977851
CPU usage (%): 111.445
Max. virtual memory (Kb): 857904
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####