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

Namemps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-80bau3b.opb
MD5SUM482f3c6a016323a565c292702d2c5673
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 183640
Biggest coefficient in the objective function 179765856174080000
Number of bits for the biggest coefficient in the objective function 58
Sum of the numbers in the objective function 6977628092477113102
Number of bits of the sum of numbers in the objective function 63
Biggest number in a constraint 179765856174080000
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint 6977628092477113102
Number of bits of the biggest sum of numbers63
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark42.7925
Number of variables228990
Total number of constraints5220
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 constraints5220
Minimum length of a constraint10
Maximum length of a constraint3330

Trace number 3403

Launcher Data

LAUNCH ON wulflinc21 THE 2005-09-19 00:50:38 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=6347 boxname=wulflinc21 idbench=487 idsolver=6 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  482f3c6a016323a565c292702d2c5673  /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-80bau3b.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudoTer.jar /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-80bau3b.opb
IDLAUNCH: 6347
/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:        884308 kB
Buffers:         28564 kB
Cached:          93772 kB
SwapCached:        812 kB
Active:          62836 kB
Inactive:        62112 kB
HighTotal:      131008 kB
HighFree:        34188 kB
LowTotal:       903652 kB
LowFree:        850120 kB
SwapTotal:     2097892 kB
SwapFree:      2096476 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           5804 kB
Slab:            19544 kB
Committed_AS:    64364 kB
PageTables:        340 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-19 00:51:15 (client local time) WITH STATUS 20 IN 42.7925 SECONDS
stats: 6347 7 42.7925 20

Solver Data

c SAT4J: a SATisfiability library for Java (c) 2004-2005 Daniel Le Berre
c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
c version JAVA5.1.1.31
c --- Begin Solver configuration ---
c org.sat4j.minisat.uip.FirstUIP@a20892
c org.sat4j.minisat.constraints.PBMinDataStructure@1e0bc08
c org.sat4j.minisat.learning.MiniSATLearning@158b649
c conflictBoundIncFactor=1.5 learntBoundIncFactor=1.1 initLearntBoundConstraintFactor=0.5 initConflictBound=100 
c VSIDS like heuristics from MiniSAT using a sorted array
c No reason simplification
c --- End Solver configuration ---
c solving /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-80bau3b.opb
c reading problem ... done. Time 33.25 ms.
c #vars     229590
c #constraints  5191
c starts		: 0
c conflicts		: 0
c decisions		: 0
c propagations		: 56135
c inspects		: 1094
c learnt literals	: 0
c learnt binary clauses	: 0
c learnt ternary clauses	: 0
c learnt clauses	: 0
c root simplifications	: 0
c removed literals (reason simplification)	: 0
c reason swapping (by a shorter reason)	: 0
c Calls to reduceDB	: 0
c speed (decisions/second)	: 0.0
c non guided choices	0
c random choices	0
s UNSATISFIABLE
c Total CPU time (ms) : 35.132

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/990/stat): 990 (java) R 989 990 20602 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1722979758 159744 3 4294967295 134512640 134569956 3221224464 3221224464 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/990/statm): 39 3 38 16 0 23 0
[pid=990] vsize: 156
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libpthread.so.0
open syscall for file tls/i686/libpthread.so.0
open syscall for file tls/mmx/libpthread.so.0
open syscall for file tls/libpthread.so.0
open syscall for file i686/mmx/libpthread.so.0
open syscall for file i686/libpthread.so.0
open syscall for file mmx/libpthread.so.0
open syscall for file libpthread.so.0
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/lib/tls/i686/libpthread.so.0
open syscall for file /oldhome/oroussel/lib/tls/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/lib/tls/libpthread.so.0
open syscall for file /oldhome/oroussel/lib/i686/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/lib/i686/libpthread.so.0
open syscall for file /oldhome/oroussel/lib/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/lib/libpthread.so.0
open syscall for file /etc/ld.so.cache
open syscall for file /lib/tls/libpthread.so.0
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 /oldhome/oroussel/solvers/sat4jPseudoTer.jar
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/jvm.cfg
execve syscall for /oldhome/oroussel/jre1.5.0_05/bin/java executable
open syscall for file /etc/ld.so.preload
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/server/tls/i686/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/server/tls/i686/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/server/tls/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/server/tls/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/server/i686/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/server/i686/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/server/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/server/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/tls/i686/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/tls/i686/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/tls/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/tls/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/i686/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/i686/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/../lib/i386/tls/i686/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/../lib/i386/tls/i686/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/../lib/i386/tls/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/../lib/i386/tls/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/../lib/i386/i686/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/../lib/i386/i686/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/../lib/i386/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/../lib/i386/libpthread.so.0
open syscall for file tls/i686/mmx/libpthread.so.0
open syscall for file tls/i686/libpthread.so.0
open syscall for file tls/mmx/libpthread.so.0
open syscall for file tls/libpthread.so.0
open syscall for file i686/mmx/libpthread.so.0
open syscall for file i686/libpthread.so.0
open syscall for file mmx/libpthread.so.0
open syscall for file libpthread.so.0
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/lib/tls/i686/libpthread.so.0
open syscall for file /oldhome/oroussel/lib/tls/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/lib/tls/libpthread.so.0
open syscall for file /oldhome/oroussel/lib/i686/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/lib/i686/libpthread.so.0
open syscall for file /oldhome/oroussel/lib/mmx/libpthread.so.0
open syscall for file /oldhome/oroussel/lib/libpthread.so.0
open syscall for file /etc/ld.so.cache
open syscall for file /lib/tls/libpthread.so.0
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/server/libdl.so.2
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/libdl.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 /oldhome/oroussel/jre1.5.0_05/lib/i386/server/libc.so.6
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/libc.so.6
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 /oldhome/oroussel/solvers/sat4jPseudoTer.jar
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/jvm.cfg
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/server/libjvm.so
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/server/libm.so.6
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/libm.so.6
open syscall for file tls/i686/mmx/libm.so.6
open syscall for file tls/i686/libm.so.6
open syscall for file tls/mmx/libm.so.6
open syscall for file tls/libm.so.6
open syscall for file i686/mmx/libm.so.6
open syscall for file i686/libm.so.6
open syscall for file mmx/libm.so.6
open syscall for file libm.so.6
open syscall for file /oldhome/oroussel/lib/libm.so.6
open syscall for file /etc/ld.so.cache
open syscall for file /lib/tls/libm.so.6
open syscall for file /etc/mtab
open syscall for file /proc/stat
open syscall for file /etc/mtab
open syscall for file /proc/meminfo
open syscall for file .hotspotrc
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/endorsed
open syscall for file /etc/mtab
open syscall for file /proc/stat
open syscall for file /proc/self/maps
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/native_threads/libhpi.so
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/server/libnsl.so.1
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/libnsl.so.1
open syscall for file tls/i686/mmx/libnsl.so.1
open syscall for file tls/i686/libnsl.so.1
open syscall for file tls/mmx/libnsl.so.1
open syscall for file tls/libnsl.so.1
open syscall for file i686/mmx/libnsl.so.1
open syscall for file i686/libnsl.so.1
open syscall for file mmx/libnsl.so.1
open syscall for file libnsl.so.1
open syscall for file /oldhome/oroussel/lib/libnsl.so.1
open syscall for file /etc/ld.so.cache
open syscall for file /lib/libnsl.so.1
socket syscall socket(PF_UNIX,SOCK_STREAM,0)=4
socket syscall connect(4,{sa_family=AF_UNIX,path=/var/run/.nscd_socket},110)
open syscall for file /tmp/hsperfdata_oroussel
open syscall for file /tmp/hsperfdata_oroussel/990
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/libverify.so
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/libjava.so
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/libzip.so
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/rt.jar
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/jsse.jar
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/jce.jar
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/charsets.jar
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/i386/server/classes.jsa
open syscall for file .hotspot_compiler
New thread pid=991
New thread pid=992
New thread pid=993
socket syscall socket(PF_UNIX,SOCK_STREAM,0)=4
socket syscall connect(4,{sa_family=AF_UNIX,path=/var/run/.nscd_socket},110)
open syscall for file /etc/localtime
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/ext
New thread pid=994
New thread pid=995
New thread pid=996
New thread pid=997
New thread pid=998
New thread pid=999
open syscall for file /oldhome/oroussel/solvers/sat4jPseudoTer.jar
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/ext/sunjce_provider.jar
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/ext/sunpkcs11.jar
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/ext/dnsns.jar
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/ext/localedata.jar
open syscall for file /oldhome/oroussel/jre1.5.0_05/lib/security/java.security
open syscall for file /dev/random
open syscall for file /dev/urandom
open syscall for file /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-80bau3b.opb

[startup+10.0024 s]
Raw data (loadavg): 1.02 1.00 1.00 4/66 999
Raw data (/proc/990/stat): 990 (java) R 989 990 20602 0 -1 0 18094 0 1 0 707 56 0 0 17 0 10 0 1722979758 855617536 28597 4294967295 134512640 134569956 3221224336 3221213980 1073952732 0 4 1 23758 0 0 0 17 1 0 0
Raw data (/proc/990/statm): 208891 28597 13129 16 0 208875 0
[pid=990] vsize: 835564
Current children cumulated CPU time (s) 7.63
Current children cumulated vsize (Kb) 835564

[startup+20.0031 s]
Raw data (loadavg): 1.09 1.02 1.00 2/66 999
Raw data (/proc/990/stat): 990 (java) R 989 990 20602 0 -1 0 18108 0 1 0 1449 63 0 0 25 0 10 0 1722979758 855322624 38601 4294967295 134512640 134569956 3221224336 3221214716 1131396294 0 4 1 23758 0 0 0 17 1 0 0
Raw data (/proc/990/statm): 208819 38601 13129 16 0 208803 0
[pid=990] vsize: 835276
Current children cumulated CPU time (s) 15.12
Current children cumulated vsize (Kb) 835276

[startup+30.0028 s]
Raw data (loadavg): 1.07 1.02 1.00 2/66 999
Raw data (/proc/990/stat): 990 (java) R 989 990 20602 0 -1 0 18111 0 1 0 2243 72 0 0 21 0 10 0 1722979758 855322624 46481 4294967295 134512640 134569956 3221224336 3221214720 1131330904 0 4 1 23758 0 0 0 17 0 0 0
Raw data (/proc/990/statm): 208819 46481 13129 16 0 208803 0
[pid=990] vsize: 835276
Current children cumulated CPU time (s) 23.15
Current children cumulated vsize (Kb) 835276
New thread pid=1000
One traced child (pid=1000) exited with status: 0
One traced child (pid=999) exited with status: 0
One traced child (pid=994) exited with status: 0
One traced child (pid=991) exited with status: 20
One traced child (pid=996) exited with status: 20
One traced child (pid=992) exited with status: 20
One traced child (pid=993) exited with status: 20
One traced child (pid=995) exited with status: 20
One traced child (pid=997) exited with status: 20
One traced child (pid=998) exited with status: 20
One traced child (pid=990) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 36.5491
CPU time (s): 42.7925
CPU user time (s): 41.0728
CPU system time (s): 1.71974
CPU usage (%): 117.082
Max. virtual memory (cumulated for all children) (Kb): 835564

Verifier Data

ERROR: no interpretation found !