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-pilot.opb
MD5SUMd9327b817828dc5afade576c2194d741
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 840
Biggest coefficient in the objective function 3784939929600
Number of bits for the biggest coefficient in the objective function 42
Sum of the numbers in the objective function 93738734889723
Number of bits of the sum of numbers in the objective function 47
Biggest number in a constraint 13851269529600000
Number of bits of the biggest number in a constraint 54
Biggest sum of numbers in a constraint 368128606591816686
Number of bits of the biggest sum of numbers59
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark19.1041
Number of variables86785
Total number of constraints2515
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 constraints2515
Minimum length of a constraint10
Maximum length of a constraint7620

Trace number 464

Launcher Data

LAUNCH ON wulflinc15 THE 2005-09-18 10:43:56 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=450 boxname=wulflinc15 idbench=450 idsolver=1 numberseed=0
MD5SUM SOLVER: 38f99674050b34630888bf623b924b59  /oldhome/oroussel/solvers/bsolo
MD5SUM BENCH:  d9327b817828dc5afade576c2194d741  /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-20-10-pilot.opb
REAL COMMAND:  bsolo /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-20-10-pilot.opb
IDLAUNCH: 450
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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	: 2
cpu MHz		: 450.999
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:        921712 kB
Buffers:         35176 kB
Cached:          48316 kB
SwapCached:        692 kB
Active:          73748 kB
Inactive:        12364 kB
HighTotal:      131008 kB
HighFree:        79464 kB
LowTotal:       903652 kB
LowFree:        842248 kB
SwapTotal:     2097136 kB
SwapFree:      2095920 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5724 kB
Slab:            21236 kB
Committed_AS:    64168 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-18 10:45:17 (client local time) WITH STATUS 20 IN 80.2878 SECONDS
stats: 450 7 80.2878 20

Solver Data

c INFO: OSL Context initialized.
c BIG Int formula...
c Initial problem consists of 86785 variables and 2710 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 80.143 s

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/899/stat): 899 (bsolo) R 898 899 31778 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1782391913 438272 3 4294967295 134512640 134736556 3221224560 3221224560 1073744960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/899/statm): 107 3 90 68 0 39 0
[pid=899] vsize: 428
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libosl.so
open syscall for file tls/i686/libosl.so
open syscall for file tls/mmx/libosl.so
open syscall for file tls/libosl.so
open syscall for file i686/mmx/libosl.so
open syscall for file i686/libosl.so
open syscall for file mmx/libosl.so
open syscall for file libosl.so
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/i686/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/libosl.so
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open syscall for file /oldhome/oroussel/lib/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/libosl.so
open syscall for file tls/i686/mmx/libstdc++-libc6.2-2.so.3
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open syscall for file tls/mmx/libstdc++-libc6.2-2.so.3
open syscall for file tls/libstdc++-libc6.2-2.so.3
open syscall for file i686/mmx/libstdc++-libc6.2-2.so.3
open syscall for file i686/libstdc++-libc6.2-2.so.3
open syscall for file mmx/libstdc++-libc6.2-2.so.3
open syscall for file libstdc++-libc6.2-2.so.3
open syscall for file /oldhome/oroussel/lib/libstdc++-libc6.2-2.so.3
open syscall for file /etc/ld.so.cache
open syscall for file /usr/lib/libstdc++-libc6.2-2.so.3
open syscall for file tls/i686/mmx/libm.so.6
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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 /lib/tls/libm.so.6
open syscall for file tls/i686/mmx/libpthread.so.0
open syscall for file tls/i686/libpthread.so.0
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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/libpthread.so.0
open syscall for file /lib/tls/libpthread.so.0
open syscall for file tls/i686/mmx/libc.so.6
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open syscall for file i686/mmx/libc.so.6
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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 tls/i686/mmx/libgcc_s.so.1
open syscall for file tls/i686/libgcc_s.so.1
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open syscall for file tls/libgcc_s.so.1
open syscall for file i686/mmx/libgcc_s.so.1
open syscall for file i686/libgcc_s.so.1
open syscall for file mmx/libgcc_s.so.1
open syscall for file libgcc_s.so.1
open syscall for file /oldhome/oroussel/lib/libgcc_s.so.1
open syscall for file /lib/libgcc_s.so.1
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open syscall for file /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-20-10-pilot.opb

[startup+10.0034 s]
Raw data (loadavg): 0.98 1.00 0.93 2/56 899
Raw data (/proc/899/stat): 899 (bsolo) R 898 899 31778 0 -1 0 31035 0 0 0 894 84 0 0 25 0 1 0 1782391913 129978368 30771 4294967295 134512640 134736556 3221224560 3221221644 1077244613 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/899/statm): 31733 30771 1116 68 0 31665 0
[pid=899] vsize: 126932
Current children cumulated CPU time (s) 9.78
Current children cumulated vsize (Kb) 126932

[startup+20.0042 s]
Raw data (loadavg): 0.98 1.00 0.93 2/56 899
Raw data (/proc/899/stat): 899 (bsolo) R 898 899 31778 0 -1 0 38809 0 0 0 1870 104 0 0 25 0 1 0 1782391913 160550912 38198 4294967295 134512640 134736556 3221224560 3221221348 1077358305 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/899/statm): 39197 38198 1116 68 0 39129 0
[pid=899] vsize: 156788
Current children cumulated CPU time (s) 19.74
Current children cumulated vsize (Kb) 156788

[startup+30.004 s]
Raw data (loadavg): 0.98 1.00 0.93 2/56 899
Raw data (/proc/899/stat): 899 (bsolo) R 898 899 31778 0 -1 0 48971 0 0 0 2838 129 0 0 25 0 1 0 1782391913 201953280 48105 4294967295 134512640 134736556 3221224560 3221221260 1077193061 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/899/statm): 49305 48105 1116 68 0 49237 0
[pid=899] vsize: 197220
Current children cumulated CPU time (s) 29.67
Current children cumulated vsize (Kb) 197220

[startup+40.0048 s]
Raw data (loadavg): 0.99 1.00 0.93 2/56 899
Raw data (/proc/899/stat): 899 (bsolo) R 898 899 31778 0 -1 0 54078 0 0 0 3819 145 0 0 25 0 1 0 1782391913 222998528 53210 4294967295 134512640 134736556 3221224560 3221223136 134539937 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/899/statm): 54443 53211 1116 68 0 54375 0
[pid=899] vsize: 217772
Current children cumulated CPU time (s) 39.64
Current children cumulated vsize (Kb) 217772

[startup+50.0047 s]
Raw data (loadavg): 0.99 1.00 0.93 2/56 899
Raw data (/proc/899/stat): 899 (bsolo) R 898 899 31778 0 -1 0 59039 0 0 0 4801 158 0 0 25 0 1 0 1782391913 243404800 58171 4294967295 134512640 134736556 3221224560 3221223136 134539937 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/899/statm): 59425 58171 1116 68 0 59357 0
[pid=899] vsize: 237700
Current children cumulated CPU time (s) 49.59
Current children cumulated vsize (Kb) 237700

[startup+60.0055 s]
Raw data (loadavg): 0.99 1.00 0.93 2/56 899
Raw data (/proc/899/stat): 899 (bsolo) R 898 899 31778 0 -1 0 60638 0 0 0 5794 164 0 0 25 0 1 0 1782391913 250458112 59756 4294967295 134512640 134736556 3221224560 3221223136 134539937 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/899/statm): 61147 59756 1116 68 0 61079 0
[pid=899] vsize: 244588
Current children cumulated CPU time (s) 59.58
Current children cumulated vsize (Kb) 244588

[startup+70.0063 s]
Raw data (loadavg): 0.99 1.00 0.93 2/56 899
Raw data (/proc/899/stat): 899 (bsolo) R 898 899 31778 0 -1 0 63016 0 0 0 6783 171 0 0 25 0 1 0 1782391913 260145152 62130 4294967295 134512640 134736556 3221224560 3221221404 1077254718 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/899/statm): 63512 62130 1116 68 0 63444 0
[pid=899] vsize: 254048
Current children cumulated CPU time (s) 69.54
Current children cumulated vsize (Kb) 254048

[startup+80.0071 s]
Raw data (loadavg): 0.99 1.00 0.93 2/56 899
Raw data (/proc/899/stat): 899 (bsolo) R 898 899 31778 0 -1 0 65691 0 0 0 7770 180 0 0 25 0 1 0 1782391913 271417344 64805 4294967295 134512640 134736556 3221224560 3221223072 134572994 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/899/statm): 66264 64805 1116 68 0 66196 0
[pid=899] vsize: 265056
Current children cumulated CPU time (s) 79.5
Current children cumulated vsize (Kb) 265056
One traced child (pid=899) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 80.7882
CPU time (s): 80.2878
CPU user time (s): 78.1611
CPU system time (s): 2.12668
CPU usage (%): 99.3806
Max. virtual memory (cumulated for all children) (Kb): 265056

Verifier Data

ERROR: no interpretation found !