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/MIPLIB/miplib/normalized-mps-v2-20-10-rentacar.opb
MD5SUM1da46f3b0e5a2fdd24f0565227d67bf2
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 5310
Biggest coefficient in the objective function 26843545600000
Number of bits for the biggest coefficient in the objective function 45
Sum of the numbers in the objective function 6957856676716407
Number of bits of the sum of numbers in the objective function 53
Biggest number in a constraint 26843545600000
Number of bits of the biggest number in a constraint 45
Biggest sum of numbers in a constraint 14026955228261965
Number of bits of the biggest sum of numbers54
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark14.2758
Number of variables264240
Total number of constraints6965
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)55
Number of constraints which are nor clauses,nor cardinality constraints6910
Minimum length of a constraint1
Maximum length of a constraint60540

Trace number 4152

Launcher Data

LAUNCH ON wulflinc22 THE 2005-09-19 05:22:35 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=6398 boxname=wulflinc22 idbench=538 idsolver=6 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1da46f3b0e5a2fdd24f0565227d67bf2  /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-rentacar.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudoTer.jar /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-rentacar.opb
IDLAUNCH: 6398
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.031
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		: 451.031
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:        859352 kB
Buffers:         35912 kB
Cached:         111248 kB
SwapCached:        536 kB
Active:          99924 kB
Inactive:        49800 kB
HighTotal:      131008 kB
HighFree:        17724 kB
LowTotal:       903652 kB
LowFree:        841628 kB
SwapTotal:     2097892 kB
SwapFree:      2096832 kB
Dirty:              60 kB
Writeback:           0 kB
Mapped:           5864 kB
Slab:            19772 kB
Committed_AS:    64132 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-19 05:23:23 (client local time) WITH STATUS 20 IN 55.3246 SECONDS
stats: 6398 7 55.3246 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/wulflinc22/normalized-mps-v2-20-10-rentacar.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) : 45.197

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/6256/stat): 6256 (java) R 6255 6256 21452 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1847342474 159744 3 4294967295 134512640 134569956 3221224464 3221224464 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/6256/statm): 39 3 38 16 0 23 0
[pid=6256] 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/6256
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=6257
New thread pid=6258
New thread pid=6259
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=6260
New thread pid=6261
New thread pid=6262
New thread pid=6263
New thread pid=6264
New thread pid=6265
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/wulflinc22/normalized-mps-v2-20-10-rentacar.opb

[startup+10.0027 s]
Raw data (loadavg): 1.28 1.04 0.97 4/65 6265
Raw data (/proc/6256/stat): 6256 (java) R 6255 6256 21452 0 -1 0 18152 0 1 0 584 51 0 0 25 0 10 0 1847342474 866852864 28391 4294967295 134512640 134569956 3221224336 3221213600 1073952732 0 4 1 23758 0 0 0 17 1 0 0
Raw data (/proc/6256/statm): 211634 28391 13129 16 0 211618 0
[pid=6256] vsize: 846536
Current children cumulated CPU time (s) 6.35
Current children cumulated vsize (Kb) 846536

[startup+20.0034 s]
Raw data (loadavg): 1.23 1.04 0.97 2/65 6265
Raw data (/proc/6256/stat): 6256 (java) S 6255 6256 21452 0 -1 0 18164 0 1 0 1311 57 0 0 25 0 10 0 1847342474 864632832 41646 4294967295 134512640 134569956 3221224336 3221212512 1073952481 0 4 1 23758 0 0 0 17 0 0 0
Raw data (/proc/6256/statm): 211092 41650 13129 16 0 211076 0
[pid=6256] vsize: 844368
Current children cumulated CPU time (s) 13.68
Current children cumulated vsize (Kb) 844368

[startup+30.0041 s]
Raw data (loadavg): 1.20 1.04 0.97 2/65 6265
Raw data (/proc/6256/stat): 6256 (java) R 6255 6256 21452 0 -1 0 18166 0 1 0 2069 63 0 0 20 0 10 0 1847342474 861413376 50797 4294967295 134512640 134569956 3221224336 3221214768 1131330700 0 4 1 23758 0 0 0 17 0 0 0
Raw data (/proc/6256/statm): 210306 50797 13129 16 0 210290 0
[pid=6256] vsize: 841224
Current children cumulated CPU time (s) 21.32
Current children cumulated vsize (Kb) 841224

[startup+40.0048 s]
Raw data (loadavg): 1.17 1.03 0.97 2/65 6265
Raw data (/proc/6256/stat): 6256 (java) R 6255 6256 21452 0 -1 0 18170 0 1 0 2807 70 0 0 25 0 10 0 1847342474 861413376 61330 4294967295 134512640 134569956 3221224336 3221214720 1131330239 0 4 1 23758 0 0 0 17 0 0 0
Raw data (/proc/6256/statm): 210306 61330 13129 16 0 210290 0
[pid=6256] vsize: 841224
Current children cumulated CPU time (s) 28.77
Current children cumulated vsize (Kb) 841224
New thread pid=6266
One traced child (pid=6266) exited with status: 0
One traced child (pid=6265) exited with status: 0
One traced child (pid=6260) exited with status: 0
One traced child (pid=6257) exited with status: 20
One traced child (pid=6258) exited with status: 20
One traced child (pid=6259) exited with status: 20
One traced child (pid=6261) exited with status: 20
One traced child (pid=6262) exited with status: 20
One traced child (pid=6263) exited with status: 20
One traced child (pid=6264) exited with status: 20
One traced child (pid=6256) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 46.6411
CPU time (s): 55.3246
CPU user time (s): 53.1269
CPU system time (s): 2.19767
CPU usage (%): 118.618
Max. virtual memory (cumulated for all children) (Kb): 846536

Verifier Data

ERROR: no interpretation found !