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).
  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

Namenormalized-opb/mps-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-degen3.opb
MD5SUM60f638829868e3a2820fb14a59c3225e
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 31460
Biggest coefficient in the objective function 977797120
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 331425197400
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 977797120
Number of bits of the biggest number in a constraint 30
Biggest sum of numbers in a constraint 331425197400
Number of bits of the biggest sum of numbers39
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.311952
Number of variables36360
Total number of constraints1503
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 constraints1503
Minimum length of a constraint40
Maximum length of a constraint4060

Trace number 16064 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-04-21 06:31:40 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=15695 boxname=wulflinc31 idbench=1208 idsolver=4 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  60f638829868e3a2820fb14a59c3225e  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-degen3.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-degen3.opb
IDLAUNCH: 15695
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
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		: 451.153
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        683432 kB
Buffers:         29132 kB
Cached:         293600 kB
SwapCached:        540 kB
Active:         121592 kB
Inactive:       203144 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        683180 kB
SwapTotal:     2097892 kB
SwapFree:      2096468 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5100 kB
Slab:            20820 kB
Committed_AS:    63488 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-21 06:31:55 (client local time) WITH STATUS 20 IN 15.1827 SECONDS
stats: 15695 7 15.1827 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Decisions:	0
c Implications:	2
c RUNTIME:	14.8807s
s UNSATISFIABLE
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Raw data (loadavg): 0.73 0.86 0.87 2/54 23759
Raw data (stat): 23759 (runsolver) R 23758 23176 23175 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 542926071 1052672 99 4294967295 134512640 135381576 3221224528 3221219776 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0005 s]
Raw data (loadavg): 0.77 0.87 0.87 2/54 23759
Raw data (stat): 23759 (galena) R 23758 23176 23175 0 -1 0 1566 0 0 0 991 8 0 0 25 0 1 0 542926071 6914048 1465 4294967295 134512640 135412752 3221224624 3221222300 134672288 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 1688 1465 241 241 0 1447 0
vsize: 6752
[startup+15.1855 s]
Raw data (loadavg): 0.79 0.87 0.88 1/53 23759
Raw data (stat): 23759 (galena) R 23758 23176 23175 0 -1 0 1566 0 0 0 991 8 0 0 25 0 1 0 542926071 6914048 1465 4294967295 134512640 135412752 3221224624 3221222300 134672288 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 1688 1465 241 241 0 1447 0
vsize: 0

Child status: 20
Real time (s): 15.1849
CPU time (s): 15.1827
CPU user time (s): 14.9837
CPU system time (s): 0.198969
CPU usage (%): 99.9856
Max. virtual memory (Kb): 6752
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####