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/miplib2003/normalized-mps-v2-20-10-stp3d.opb
MD5SUMbd41ba4f2ddbc80664ba643e2dc93b96
Bench Categoryoptimization, medium integers (OPTMEDINT)
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 75648
Biggest coefficient in the objective function 100303
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 7576279200
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 100303
Number of bits of the biggest number in a constraint 17
Biggest sum of numbers in a constraint 7576279200
Number of bits of the biggest sum of numbers33
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark41.9706
Number of variables204880
Total number of constraints364368
Number of constraints which are clauses129232
Number of constraints which are cardinality constraints (but not clauses)210685
Number of constraints which are nor clauses,nor cardinality constraints24451
Minimum length of a constraint1
Maximum length of a constraint120

Trace number 3820

Launcher Data

LAUNCH ON wulflinc28 THE 2005-09-19 03:05:23 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=1772 boxname=wulflinc28 idbench=600 idsolver=2 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  bd41ba4f2ddbc80664ba643e2dc93b96  /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-20-10-stp3d.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-20-10-stp3d.opb
IDLAUNCH: 1772
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
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	: 3
cpu MHz		: 451.077
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:        860632 kB
Buffers:         35228 kB
Cached:         110072 kB
SwapCached:        696 kB
Active:          98928 kB
Inactive:        48920 kB
HighTotal:      131008 kB
HighFree:        17388 kB
LowTotal:       903652 kB
LowFree:        843244 kB
SwapTotal:     2097640 kB
SwapFree:      2096372 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5812 kB
Slab:            20628 kB
Committed_AS:    64164 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-19 03:06:06 (client local time) WITH STATUS 20 IN 41.9706 SECONDS
stats: 1772 7 41.9706 20

Solver Data

c Decisions:	0
c Implications:	91313
c RUNTIME:	40.4179s
s UNSATISFIABLE

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/8955/stat): 8955 (galena) R 8954 8955 20115 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 1846529151 1015808 2 4294967295 134512640 135412752 3221224560 3221224560 134512896 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8955/statm): 248 2 241 241 0 7 0
[pid=8955] vsize: 992
open syscall for file /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-20-10-stp3d.opb

[startup+10.0026 s]
Raw data (loadavg): 0.70 0.83 0.96 2/56 8955
Raw data (/proc/8955/stat): 8955 (galena) R 8954 8955 20115 0 -1 0 2482 0 0 0 979 15 0 0 25 0 1 0 1846529151 7794688 1658 4294967295 134512640 135412752 3221224560 3221222496 134613121 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8955/statm): 1903 1658 241 241 0 1662 0
[pid=8955] vsize: 7612
Current children cumulated CPU time (s) 9.94
Current children cumulated vsize (Kb) 7612

[startup+20.0033 s]
Raw data (loadavg): 0.75 0.83 0.96 2/56 8955
Raw data (/proc/8955/stat): 8955 (galena) R 8954 8955 20115 0 -1 0 7200 0 0 0 1961 30 0 0 25 0 1 0 1846529151 22020096 4995 4294967295 134512640 135412752 3221224560 3221222288 134929904 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8955/statm): 5376 4995 241 241 0 5135 0
[pid=8955] vsize: 21504
Current children cumulated CPU time (s) 19.91
Current children cumulated vsize (Kb) 21504

[startup+30.004 s]
Raw data (loadavg): 0.79 0.84 0.96 2/56 8955
Raw data (/proc/8955/stat): 8955 (galena) R 8954 8955 20115 0 -1 0 10373 0 0 0 2946 41 0 0 25 0 1 0 1846529151 34258944 6887 4294967295 134512640 135412752 3221224560 3221222304 134618944 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8955/statm): 8364 6887 241 241 0 8123 0
[pid=8955] vsize: 33456
Current children cumulated CPU time (s) 29.87
Current children cumulated vsize (Kb) 33456

[startup+40.0047 s]
Raw data (loadavg): 0.82 0.84 0.96 2/56 8955
Raw data (/proc/8955/stat): 8955 (galena) R 8954 8955 20115 0 -1 0 22797 0 0 0 3912 71 0 0 25 0 1 0 1846529151 87965696 18679 4294967295 134512640 135412752 3221224560 3221222512 134832663 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8955/statm): 21476 18679 241 241 0 21235 0
[pid=8955] vsize: 85904
Current children cumulated CPU time (s) 39.83
Current children cumulated vsize (Kb) 85904
One traced child (pid=8955) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 42.1386
CPU time (s): 41.9706
CPU user time (s): 41.1397
CPU system time (s): 0.830873
CPU usage (%): 99.6014
Max. virtual memory (cumulated for all children) (Kb): 85904

Verifier Data

ERROR: no interpretation found !