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-pilot.opb
MD5SUMcbcc6e4c45bc594b9a9c886c370271c9
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 560
Biggest coefficient in the objective function 3696230400
Number of bits for the biggest coefficient in the objective function 32
Sum of the numbers in the objective function 91541646075
Number of bits of the sum of numbers in the objective function 37
Biggest number in a constraint 13526630400000
Number of bits of the biggest number in a constraint 44
Biggest sum of numbers in a constraint 359500249863150
Number of bits of the biggest sum of numbers49
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.83772
Number of variables59467
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 constraint7
Maximum length of a constraint5080

Trace number 5041

Launcher Data

LAUNCH ON wulflinc10 THE 2005-09-19 22:23:58 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=834 boxname=wulflinc10 idbench=834 idsolver=1 numberseed=0
MD5SUM SOLVER: 38f99674050b34630888bf623b924b59  /oldhome/oroussel/solvers/bsolo
MD5SUM BENCH:  cbcc6e4c45bc594b9a9c886c370271c9  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-pilot.opb
REAL COMMAND:  bsolo /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-pilot.opb
IDLAUNCH: 834
/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:        792972 kB
Buffers:         37948 kB
Cached:         175888 kB
SwapCached:        228 kB
Active:          85164 kB
Inactive:       131636 kB
HighTotal:      131008 kB
HighFree:        12152 kB
LowTotal:       903652 kB
LowFree:        780820 kB
SwapTotal:     2097136 kB
SwapFree:      2096756 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           6272 kB
Slab:            19224 kB
Committed_AS:    64136 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-19 22:24:48 (client local time) WITH STATUS 20 IN 48.9986 SECONDS
stats: 834 7 48.9986 20

Solver Data

c INFO: OSL Context initialized.
c BIG Int formula...
c Initial problem consists of 59467 variables and 2709 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 48.87 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/10187/stat): 10187 (bsolo) R 10186 10187 22582 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1795280014 438272 3 4294967295 134512640 134736556 3221224560 3221224560 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10187/statm): 107 3 90 68 0 39 0
[pid=10187] 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
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open syscall for file i686/libosl.so
open syscall for file 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 i686/mmx/libstdc++-libc6.2-2.so.3
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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
open syscall for file /usr/lib/libstdc++-libc6.2-2.so.3
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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 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
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/wulflinc10/normalized-mps-v2-13-7-pilot.opb

[startup+10.0033 s]
Raw data (loadavg): 0.94 0.98 0.99 2/56 10187
Raw data (/proc/10187/stat): 10187 (bsolo) T 10186 10187 22582 0 -1 0 33959 0 0 0 897 83 0 0 25 0 1 0 1795280014 141266944 33503 4294967295 134512640 134736556 3221224560 3221223108 1077757598 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/10187/statm): 34489 33503 1116 68 0 34421 0
[pid=10187] vsize: 137956
Current children cumulated CPU time (s) 9.8
Current children cumulated vsize (Kb) 137956

[startup+20.0029 s]
Raw data (loadavg): 0.95 0.98 0.99 2/56 10187
Raw data (/proc/10187/stat): 10187 (bsolo) R 10186 10187 22582 0 -1 0 45237 0 0 0 1861 114 0 0 25 0 1 0 1795280014 187392000 44777 4294967295 134512640 134736556 3221224560 3221223136 134539937 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10187/statm): 45750 44777 1116 68 0 45682 0
[pid=10187] vsize: 183000
Current children cumulated CPU time (s) 19.75
Current children cumulated vsize (Kb) 183000

[startup+30.0034 s]
Raw data (loadavg): 0.95 0.98 0.99 2/56 10187
Raw data (/proc/10187/stat): 10187 (bsolo) R 10186 10187 22582 0 -1 0 52690 0 0 0 2835 134 0 0 25 0 1 0 1795280014 217894912 52230 4294967295 134512640 134736556 3221224560 3221222852 1077314309 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10187/statm): 53197 52230 1116 68 0 53129 0
[pid=10187] vsize: 212788
Current children cumulated CPU time (s) 29.69
Current children cumulated vsize (Kb) 212788

[startup+40.004 s]
Raw data (loadavg): 0.96 0.98 0.99 2/56 10187
Raw data (/proc/10187/stat): 10187 (bsolo) R 10186 10187 22582 0 -1 0 54714 0 0 0 3827 140 0 0 25 0 1 0 1795280014 226574336 54242 4294967295 134512640 134736556 3221224560 3221222852 1077314242 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10187/statm): 55316 54242 1116 68 0 55248 0
[pid=10187] vsize: 221264
Current children cumulated CPU time (s) 39.67
Current children cumulated vsize (Kb) 221264
One traced child (pid=10187) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 49.375
CPU time (s): 48.9986
CPU user time (s): 47.2528
CPU system time (s): 1.74573
CPU usage (%): 99.2376
Max. virtual memory (cumulated for all children) (Kb): 221264

Verifier Data

ERROR: no interpretation found !