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).
  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

Namenormalized-opb/mps-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-25fv47.opb
MD5SUMc9f866c0690dc1af70eb2575fc6ba22f
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 12780
Biggest coefficient in the objective function 524288000000
Number of bits for the biggest coefficient in the objective function 39
Sum of the numbers in the objective function 10374607341450
Number of bits of the sum of numbers in the objective function 44
Biggest number in a constraint 125278616027136
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 793896153991050
Number of bits of the biggest sum of numbers50
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.267958
Number of variables31420
Total number of constraints820
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints820
Minimum length of a constraint20
Maximum length of a constraint6800

Trace number 20106 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-04-21 20:20:56 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=15414 boxname=wulflinc5 idbench=1186 idsolver=9 numberseed=0
MD5SUM SOLVER: daf345f6fbf228671abfac48013b9cac  /oldhome/oroussel/solvers/sat4jPseudo.jar
MD5SUM BENCH:  c9f866c0690dc1af70eb2575fc6ba22f  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-25fv47.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudo.jar /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-25fv47.opb
IDLAUNCH: 15414
/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:        569116 kB
Buffers:         22788 kB
Cached:         421220 kB
SwapCached:        304 kB
Active:          81484 kB
Inactive:       365000 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        568864 kB
SwapTotal:     2097136 kB
SwapFree:      2096444 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5728 kB
Slab:            13440 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-21 20:25:54 (client local time) WITH STATUS 20 IN 313.714 SECONDS
stats: 15414 7 313.714 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c solving /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-25fv47.opb
c reading problem 
c [nbvar=31420]
c [nbconstr=820]
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:146)
	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 293.222
c #vars     31420
c #clauses  1331
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) : 296.925
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): 0.92 0.97 0.91 2/54 525
Raw data (stat): 525 (runsolver) R 524 24215 24214 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 489695369 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+10.0009 s]
Raw data (loadavg): 0.93 0.97 0.91 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 17997 0 1 0 888 36 0 0 25 0 10 0 489695369 853905408 19214 4294967295 134512640 134569956 3221224400 3221214588 1080019600 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 208473 19214 13073 16 0 208457 0
vsize: 833892
[startup+20.0011 s]
Raw data (loadavg): 0.94 0.97 0.91 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 17997 0 1 0 1783 36 0 0 25 0 10 0 489695369 854097920 19741 4294967295 134512640 134569956 3221224400 3221214812 1080204031 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 208520 19741 13073 16 0 208504 0
vsize: 834080
[startup+30.0019 s]
Raw data (loadavg): 0.95 0.97 0.91 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 17997 0 1 0 2682 36 0 0 25 0 10 0 489695369 854097920 20169 4294967295 134512640 134569956 3221224400 3221214824 1131214992 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 208520 20169 13073 16 0 208504 0
vsize: 834080
[startup+40.0017 s]
Raw data (loadavg): 0.96 0.97 0.91 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 17997 0 1 0 3613 37 0 0 25 0 10 0 489695369 854097920 20396 4294967295 134512640 134569956 3221224400 3221214716 1079677938 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 208520 20396 13073 16 0 208504 0
vsize: 834080
[startup+50.0031 s]
Raw data (loadavg): 1.12 1.00 0.92 5/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18017 0 1 0 4466 37 0 0 25 0 10 0 489695369 864882688 22766 4294967295 134512640 134569956 3221224400 3221214808 1131215725 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 211153 22777 13073 16 0 211137 0
vsize: 844612
[startup+60.0032 s]
Raw data (loadavg): 1.41 1.07 0.94 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18017 0 1 0 5207 37 0 0 25 0 10 0 489695369 883650560 27875 4294967295 134512640 134569956 3221224400 3221214808 1131216383 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 215735 27875 13073 16 0 215719 0
vsize: 862940
[startup+70.0039 s]
Raw data (loadavg): 1.35 1.07 0.94 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18017 0 1 0 6086 38 0 0 25 0 10 0 489695369 881532928 27678 4294967295 134512640 134569956 3221224400 3221214232 1080019608 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 215218 27678 13073 16 0 215202 0
vsize: 860872
[startup+80.0047 s]
Raw data (loadavg): 1.29 1.06 0.94 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18017 0 1 0 6995 38 0 0 25 0 10 0 489695369 881532928 28097 4294967295 134512640 134569956 3221224400 3221214756 1080203551 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 215218 28097 13073 16 0 215202 0
vsize: 860872
[startup+90.0044 s]
Raw data (loadavg): 1.25 1.06 0.94 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18017 0 1 0 7913 38 0 0 25 0 10 0 489695369 881532928 28254 4294967295 134512640 134569956 3221224400 3221214660 1079677938 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 215218 28254 13073 16 0 215202 0
vsize: 860872
[startup+100.004 s]
Raw data (loadavg): 1.21 1.06 0.94 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18017 0 1 0 8827 39 0 0 25 0 10 0 489695369 871604224 26057 4294967295 134512640 134569956 3221224400 3221214684 1079677938 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 26057 13073 16 0 212778 0
vsize: 851176
[startup+110.005 s]
Raw data (loadavg): 1.18 1.06 0.94 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18017 0 1 0 9748 39 0 0 25 0 10 0 489695369 871604224 26207 4294967295 134512640 134569956 3221224400 3221214684 1079677938 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 26207 13073 16 0 212778 0
vsize: 851176
[startup+120.006 s]
Raw data (loadavg): 1.15 1.05 0.94 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18017 0 1 0 10668 39 0 0 24 0 10 0 489695369 871604224 26318 4294967295 134512640 134569956 3221224400 3221214240 1077558382 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 26318 13073 16 0 212778 0
vsize: 851176
[startup+130.006 s]
Raw data (loadavg): 1.13 1.05 0.94 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18017 0 1 0 11596 39 0 0 25 0 10 0 489695369 871604224 26442 4294967295 134512640 134569956 3221224400 3221214240 1077558376 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 26442 13073 16 0 212778 0
vsize: 851176
[startup+140.006 s]
Raw data (loadavg): 1.11 1.05 0.94 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18017 0 1 0 12524 39 0 0 25 0 10 0 489695369 871604224 26527 4294967295 134512640 134569956 3221224400 3221214788 1080204163 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 26527 13073 16 0 212778 0
vsize: 851176
[startup+150.012 s]
Raw data (loadavg): 1.09 1.05 0.94 2/63 534
Raw data (stat): 525 (java) S 524 24215 24214 0 -1 0 18017 0 1 0 13437 40 0 0 25 0 10 0 489695369 871604224 26619 4294967295 134512640 134569956 3221224400 3221213496 1073943035 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 26621 13073 16 0 212778 0
vsize: 851176
[startup+160.012 s]
Raw data (loadavg): 1.08 1.05 0.94 2/63 534
Raw data (stat): 525 (java) S 524 24215 24214 0 -1 0 18017 0 1 0 14326 40 0 0 25 0 10 0 489695369 871604224 26711 4294967295 134512640 134569956 3221224400 3221213480 1073943035 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 26711 13073 16 0 212778 0
vsize: 851176
[startup+170.014 s]
Raw data (loadavg): 1.06 1.04 0.94 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18017 0 1 0 15206 40 0 0 25 0 10 0 489695369 871604224 26912 4294967295 134512640 134569956 3221224400 3221214240 1077558376 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 26912 13073 16 0 212778 0
vsize: 851176
[startup+180.015 s]
Raw data (loadavg): 1.05 1.04 0.94 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18017 0 1 0 16105 40 0 0 25 0 10 0 489695369 871604224 27195 4294967295 134512640 134569956 3221224400 3221214240 1077558376 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 27195 13073 16 0 212778 0
vsize: 851176
[startup+190.023 s]
Raw data (loadavg): 1.04 1.04 0.94 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18017 0 1 0 16985 40 0 0 25 0 10 0 489695369 871604224 27856 4294967295 134512640 134569956 3221224400 3221214684 1079677938 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 27856 13073 16 0 212778 0
vsize: 851176
[startup+200.023 s]
Raw data (loadavg): 1.04 1.04 0.94 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18017 0 1 0 17850 41 0 0 25 0 10 0 489695369 871604224 27998 4294967295 134512640 134569956 3221224400 3221214256 1080019608 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 27998 13073 16 0 212778 0
vsize: 851176
[startup+210.023 s]
Raw data (loadavg): 1.10 1.05 0.95 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18017 0 1 0 18739 41 0 0 25 0 10 0 489695369 871604224 28376 4294967295 134512640 134569956 3221224400 3221214780 1080204031 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 28376 13073 16 0 212778 0
vsize: 851176
[startup+220.024 s]
Raw data (loadavg): 1.09 1.05 0.95 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18017 0 1 0 19624 41 0 0 25 0 10 0 489695369 871604224 28723 4294967295 134512640 134569956 3221224400 3221214788 1080204163 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 28723 13073 16 0 212778 0
vsize: 851176
[startup+230.029 s]
Raw data (loadavg): 1.07 1.05 0.95 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18017 0 1 0 20489 41 0 0 25 0 10 0 489695369 871604224 28872 4294967295 134512640 134569956 3221224400 3221214240 1077558376 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 28872 13073 16 0 212778 0
vsize: 851176
[startup+240.03 s]
Raw data (loadavg): 1.06 1.05 0.95 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18018 0 1 0 21388 43 0 0 25 0 10 0 489695369 871604224 30742 4294967295 134512640 134569956 3221224400 3221214684 1079677938 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 30742 13073 16 0 212778 0
vsize: 851176
[startup+250.033 s]
Raw data (loadavg): 1.05 1.04 0.95 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18018 0 1 0 22312 43 0 0 24 0 10 0 489695369 871604224 30742 4294967295 134512640 134569956 3221224400 3221214540 1079677938 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 30742 13073 16 0 212778 0
vsize: 851176
[startup+260.035 s]
Raw data (loadavg): 1.04 1.04 0.95 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18018 0 1 0 23188 43 0 0 25 0 10 0 489695369 871604224 30881 4294967295 134512640 134569956 3221224400 3221214256 1080019608 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 30881 13073 16 0 212778 0
vsize: 851176
[startup+270.035 s]
Raw data (loadavg): 1.04 1.04 0.95 3/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18018 0 1 0 24064 44 0 0 25 0 10 0 489695369 871604224 31117 4294967295 134512640 134569956 3221224400 3221214788 1080204163 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 31117 13073 16 0 212778 0
vsize: 851176
[startup+280.036 s]
Raw data (loadavg): 1.03 1.04 0.95 2/63 534
Raw data (stat): 525 (java) R 524 24215 24214 0 -1 0 18018 0 1 0 24940 45 0 0 25 0 10 0 489695369 871604224 32049 4294967295 134512640 134569956 3221224400 3221214256 1080019608 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 32049 13073 16 0 212778 0
vsize: 851176
[startup+290.053 s]
Raw data (loadavg): 1.02 1.04 0.95 2/63 534
Raw data (stat): 525 (java) S 524 24215 24214 0 -1 0 18018 0 1 0 25820 45 0 0 25 0 10 0 489695369 871604224 32309 4294967295 134512640 134569956 3221224400 3221213496 1073943035 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 32309 13073 16 0 212778 0
vsize: 851176
[startup+297.705 s]
Raw data (loadavg): 1.02 1.04 0.95 1/53 534
Raw data (stat): 525 (java) S 524 24215 24214 0 -1 0 18018 0 1 0 25820 45 0 0 25 0 10 0 489695369 871604224 32309 4294967295 134512640 134569956 3221224400 3221213496 1073943035 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 212794 32309 13073 16 0 212778 0
vsize: 0

Child status: 20
Real time (s): 297.705
CPU time (s): 313.714
CPU user time (s): 312.519
CPU system time (s): 1.19482
CPU usage (%): 105.378
Max. virtual memory (Kb): 862940
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####