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/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-blp-ir98.opb
MD5SUMfb418db515bc70c21d294b6cce4dc63f
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 83886080000000
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 400587756783443
Number of bits of the biggest sum of numbers49
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables7287
Total number of constraints6560
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)6451
Number of constraints which are nor clauses,nor cardinality constraints109
Minimum length of a constraint1
Maximum length of a constraint6062

Trace number 5431

Launcher Data

LAUNCH ON wulflinc2 THE 2005-09-20 01:16:37 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=1926 boxname=wulflinc2 idbench=754 idsolver=2 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  fb418db515bc70c21d294b6cce4dc63f  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-blp-ir98.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-blp-ir98.opb
IDLAUNCH: 1926
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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	: 2
cpu MHz		: 451.191
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:        935192 kB
Buffers:           408 kB
Cached:          74720 kB
SwapCached:        828 kB
Active:          15352 kB
Inactive:        62156 kB
HighTotal:      131008 kB
HighFree:        52472 kB
LowTotal:       903652 kB
LowFree:        882720 kB
SwapTotal:     2097136 kB
SwapFree:      2095544 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5492 kB
Slab:            16156 kB
Committed_AS:    72360 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-20 01:16:40 (client local time) WITH STATUS 0 IN 2.94655 SECONDS
stats: 1926 7 2.94655 0

Solver Data



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/32246/stat): 32246 (galena) R 32245 32246 6872 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 1796291678 1015808 2 4294967295 134512640 135412752 3221224560 3221224560 134512896 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/32246/statm): 248 2 241 241 0 7 0
[pid=32246] vsize: 992
open syscall for file /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-blp-ir98.opb
One traced child (pid=32246) ended because it received signal 6 (SIGABRT)
All traced children have exited ! Game is over.

Child ended because it received signal 6 (SIGABRT)
Real time (s): 2.96495
CPU time (s): 2.94655
CPU user time (s): 2.90956
CPU system time (s): 0.036994
CPU usage (%): 99.3795
Max. virtual memory (cumulated for all children) (Kb): 0



Verifier Data




ERROR: no interpretation found !