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-v2-13-7/MIPLIB/miplib/normalized-mps-v2-13-7-khb05250.opb
MD5SUM16cce9479fbccbb902b090a1fce13788
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 25004
Biggest coefficient in the objective function 6104809472
Number of bits for the biggest coefficient in the objective function 33
Sum of the numbers in the objective function 5527422840150
Number of bits of the sum of numbers in the objective function 43
Biggest number in a constraint 6104809472
Number of bits of the biggest number in a constraint 33
Biggest sum of numbers in a constraint 5527422840150
Number of bits of the biggest sum of numbers43
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.278957
Number of variables25544
Total number of constraints126
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)24
Number of constraints which are nor clauses,nor cardinality constraints102
Minimum length of a constraint1
Maximum length of a constraint1020

Trace number 8696

Launcher Data

LAUNCH ON wulflinc1 THE 2005-09-20 18:05:30 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=6758 boxname=wulflinc1 idbench=898 idsolver=6 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  16cce9479fbccbb902b090a1fce13788  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-khb05250.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudoTer.jar /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-khb05250.opb
IDLAUNCH: 6758
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        741388 kB
Buffers:         34656 kB
Cached:         228840 kB
SwapCached:       1160 kB
Active:         134580 kB
Inactive:       131528 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        741136 kB
SwapTotal:     2097136 kB
SwapFree:      2095268 kB
Dirty:              32 kB
Writeback:           0 kB
Mapped:           5784 kB
Slab:            21360 kB
Committed_AS:    92628 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-20 18:05:34 (client local time) WITH STATUS 20 IN 3.01154 SECONDS
stats: 6758 7 3.01154 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@b2fd8f
c org.sat4j.minisat.constraints.PBMinDataStructure@124bbbf
c org.sat4j.minisat.learning.MiniSATLearning@a20892
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/wulflinc1/normalized-mps-v2-13-7-khb05250.opb
c reading problem ... c (trivial inconsistency)
c starts		: 0
c conflicts		: 0
c decisions		: 0
c propagations		: 0
c inspects		: 0
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) : 2.488

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/11501/stat): 11501 (java) R 11500 11501 10120 0 -1 0 18 0 0 0 0 0 0 0 21 0 1 0 1745477771 159744 3 4294967295 134512640 134569956 3221221632 3221221632 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/11501/statm): 39 3 38 16 0 23 0
[pid=11501] vsize: 156
open syscall for file /etc/ld.so.preload
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/i686/mmx/libpthread.so.0
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/i686/libpthread.so.0
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/mmx/libpthread.so.0
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/libpthread.so.0
open syscall for file /usr/local/intel-8.0-20031016/lib/i686/mmx/libpthread.so.0
open syscall for file /usr/local/intel-8.0-20031016/lib/i686/libpthread.so.0
open syscall for file /usr/local/intel-8.0-20031016/lib/mmx/libpthread.so.0
open syscall for file /usr/local/intel-8.0-20031016/lib/libpthread.so.0
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/i686/mmx/libpthread.so.0
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/i686/libpthread.so.0
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/mmx/libpthread.so.0
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/libpthread.so.0
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/i686/mmx/libpthread.so.0
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/i686/libpthread.so.0
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/mmx/libpthread.so.0
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libpthread.so.0
open syscall for file /usr/local/globus-2.4.3/lib/tls/i686/mmx/libpthread.so.0
open syscall for file /usr/local/globus-2.4.3/lib/tls/i686/libpthread.so.0
open syscall for file /usr/local/globus-2.4.3/lib/tls/mmx/libpthread.so.0
open syscall for file /usr/local/globus-2.4.3/lib/tls/libpthread.so.0
open syscall for file /usr/local/globus-2.4.3/lib/i686/mmx/libpthread.so.0
open syscall for file /usr/local/globus-2.4.3/lib/i686/libpthread.so.0
open syscall for file /usr/local/globus-2.4.3/lib/mmx/libpthread.so.0
open syscall for file /usr/local/globus-2.4.3/lib/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 /usr/local/intel-8.0-20031016/lib/libdl.so.2
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libdl.so.2
open syscall for file /usr/local/globus-2.4.3/lib/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 /usr/local/intel-8.0-20031016/lib/libc.so.6
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libc.so.6
open syscall for file /usr/local/globus-2.4.3/lib/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 /usr/local/intel-8.0-20031016/lib/tls/i686/mmx/libpthread.so.0
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/i686/libpthread.so.0
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/mmx/libpthread.so.0
open syscall for file /usr/local/intel-8.0-20031016/lib/tls/libpthread.so.0
open syscall for file /usr/local/intel-8.0-20031016/lib/i686/mmx/libpthread.so.0
open syscall for file /usr/local/intel-8.0-20031016/lib/i686/libpthread.so.0
open syscall for file /usr/local/intel-8.0-20031016/lib/mmx/libpthread.so.0
open syscall for file /usr/local/intel-8.0-20031016/lib/libpthread.so.0
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/i686/mmx/libpthread.so.0
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/i686/libpthread.so.0
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/mmx/libpthread.so.0
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/tls/libpthread.so.0
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/i686/mmx/libpthread.so.0
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/i686/libpthread.so.0
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/mmx/libpthread.so.0
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libpthread.so.0
open syscall for file /usr/local/globus-2.4.3/lib/tls/i686/mmx/libpthread.so.0
open syscall for file /usr/local/globus-2.4.3/lib/tls/i686/libpthread.so.0
open syscall for file /usr/local/globus-2.4.3/lib/tls/mmx/libpthread.so.0
open syscall for file /usr/local/globus-2.4.3/lib/tls/libpthread.so.0
open syscall for file /usr/local/globus-2.4.3/lib/i686/mmx/libpthread.so.0
open syscall for file /usr/local/globus-2.4.3/lib/i686/libpthread.so.0
open syscall for file /usr/local/globus-2.4.3/lib/mmx/libpthread.so.0
open syscall for file /usr/local/globus-2.4.3/lib/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 /usr/local/intel-8.0-20031016/lib/libdl.so.2
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libdl.so.2
open syscall for file /usr/local/globus-2.4.3/lib/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 /usr/local/intel-8.0-20031016/lib/libc.so.6
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libc.so.6
open syscall for file /usr/local/globus-2.4.3/lib/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 /usr/local/intel-8.0-20031016/lib/libm.so.6
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libm.so.6
open syscall for file /usr/local/globus-2.4.3/lib/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 /usr/local/intel-8.0-20031016/lib/libnsl.so.1
open syscall for file /usr/local/pgi-5.1.3/linux86/5.1/lib/libnsl.so.1
open syscall for file /usr/local/globus-2.4.3/lib/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/11501
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=11502
New thread pid=11503
New thread pid=11504
open syscall for file /usr/lib/locale/locale-archive
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=11505
New thread pid=11506
New thread pid=11507
New thread pid=11508
New thread pid=11509
New thread pid=11510
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/wulflinc1/normalized-mps-v2-13-7-khb05250.opb
New thread pid=11511
One traced child (pid=11511) exited with status: 0
One traced child (pid=11510) exited with status: 0
One traced child (pid=11505) exited with status: 0
One traced child (pid=11502) exited with status: 20
One traced child (pid=11506) exited with status: 20
One traced child (pid=11508) exited with status: 20
One traced child (pid=11507) exited with status: 20
One traced child (pid=11503) exited with status: 20
One traced child (pid=11504) exited with status: 20
One traced child (pid=11509) exited with status: 20
One traced child (pid=11501) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 3.78404
CPU time (s): 3.01154
CPU user time (s): 2.80057
CPU system time (s): 0.210967
CPU usage (%): 79.5853
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

ERROR: no interpretation found !