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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-pilotnov.opb
MD5SUM474db7a0368f1f09ef735587d48fb458
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 1260
Biggest coefficient in the objective function 466616320000
Number of bits for the biggest coefficient in the objective function 39
Sum of the numbers in the objective function 19239881147850
Number of bits of the sum of numbers in the objective function 45
Biggest number in a constraint 3067683012608000000
Number of bits of the biggest number in a constraint 62
Biggest sum of numbers in a constraint -6031476375157695016
Number of bits of the biggest sum of numbers64
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark9.2296
Number of variables37297
Total number of constraints1287
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 constraints1287
Minimum length of a constraint7
Maximum length of a constraint3024

Trace number 5036

Launcher Data

LAUNCH ON wulflinc21 THE 2005-09-19 22:23:42 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=832 boxname=wulflinc21 idbench=832 idsolver=1 numberseed=0
MD5SUM SOLVER: 38f99674050b34630888bf623b924b59  /oldhome/oroussel/solvers/bsolo
MD5SUM BENCH:  474db7a0368f1f09ef735587d48fb458  /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-pilotnov.opb
REAL COMMAND:  bsolo /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-pilotnov.opb
IDLAUNCH: 832
/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:        902408 kB
Buffers:         33860 kB
Cached:          68100 kB
SwapCached:        788 kB
Active:          46824 kB
Inactive:        57676 kB
HighTotal:      131008 kB
HighFree:        60060 kB
LowTotal:       903652 kB
LowFree:        842348 kB
SwapTotal:     2097892 kB
SwapFree:      2096456 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5700 kB
Slab:            21972 kB
Committed_AS:    64368 kB
PageTables:        340 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-19 22:24:03 (client local time) WITH STATUS 0 IN 21.1888 SECONDS
stats: 832 7 21.1888 0

Solver Data

c INFO: OSL Context initialized.
c BIG Int formula...
c Integer values too big to handle...
c Parse Error 8
c Problem opening input file name: /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-pilotnov.opb
s UNKNOWN
c Exit Code: 0

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/6820/stat): 6820 (bsolo) R 6819 6820 20602 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1730739230 438272 3 4294967295 134512640 134736556 3221224560 3221224560 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/6820/statm): 107 3 90 68 0 39 0
[pid=6820] vsize: 428
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libosl.so
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open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libosl.so
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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
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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
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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
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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
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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
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open syscall for file libgcc_s.so.1
open syscall for file /oldhome/oroussel/lib/libgcc_s.so.1
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open syscall for file /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-pilotnov.opb

[startup+10.0021 s]
Raw data (loadavg): 0.89 0.94 0.98 2/57 6820
Raw data (/proc/6820/stat): 6820 (bsolo) R 6819 6820 20602 0 -1 0 18527 0 0 0 933 51 0 0 25 0 1 0 1730739230 78991360 18354 4294967295 134512640 134736556 3221224560 3221223136 134539935 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6820/statm): 19285 18354 1116 68 0 19217 0
[pid=6820] vsize: 77140
Current children cumulated CPU time (s) 9.84
Current children cumulated vsize (Kb) 77140

[startup+20.0027 s]
Raw data (loadavg): 0.90 0.94 0.98 2/57 6820
Raw data (/proc/6820/stat): 6820 (bsolo) R 6819 6820 20602 0 -1 0 30940 0 0 0 1897 81 0 0 25 0 1 0 1730739230 129888256 30704 4294967295 134512640 134736556 3221224560 3221223088 134574082 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/6820/statm): 31711 30704 1116 68 0 31643 0
[pid=6820] vsize: 126844
Current children cumulated CPU time (s) 19.78
Current children cumulated vsize (Kb) 126844
One traced child (pid=6820) exited with status: 0
All traced children have exited ! Game is over.

Child status: 0
Real time (s): 21.4211
CPU time (s): 21.1888
CPU user time (s): 20.2739
CPU system time (s): 0.91486
CPU usage (%): 98.9155
Max. virtual memory (cumulated for all children) (Kb): 126844

Verifier Data

ERROR: no interpretation found !