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-v2-20-10/MIPLIB/miplib3/normalized-mps-v2-20-10-dcmulti.opb
MD5SUM659e380dd1d6168ad99a794b3190043f
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 14235
Biggest coefficient in the objective function 714038312960
Number of bits for the biggest coefficient in the objective function 40
Sum of the numbers in the objective function 68224730472397
Number of bits of the sum of numbers in the objective function 46
Biggest number in a constraint 714038312960
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 68224730472397
Number of bits of the biggest sum of numbers46
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.12198
Number of variables14265
Total number of constraints365
Number of constraints which are clauses27
Number of constraints which are cardinality constraints (but not clauses)80
Number of constraints which are nor clauses,nor cardinality constraints258
Minimum length of a constraint1
Maximum length of a constraint420

Trace number 28285 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-05-25 01:42:24 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=13288 boxname=wulflinc6 idbench=1023 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  659e380dd1d6168ad99a794b3190043f  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-dcmulti.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-dcmulti.opb
IDLAUNCH: 13288
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        776448 kB
Buffers:         31536 kB
Cached:         203948 kB
SwapCached:        408 kB
Active:          69768 kB
Inactive:       168080 kB
HighTotal:      131008 kB
HighFree:          280 kB
LowTotal:       903652 kB
LowFree:        776168 kB
SwapTotal:     2097136 kB
SwapFree:      2096040 kB
Dirty:              64 kB
Writeback:           0 kB
Mapped:           5696 kB
Slab:            14760 kB
Committed_AS:    63732 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-25 01:42:56 (client local time) WITH STATUS 20 IN 32.3161 SECONDS
stats: 13288 7 32.3161 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 14265 variables and 308 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 32.292 s
#### 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): 0.58 0.81 0.86 2/54 688
Raw data (stat): 688 (runsolver) R 687 25568 25567 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 776781624 1052672 99 4294967295 134512640 135381576 3221224496 3221219708 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+9.99994 s]
Raw data (loadavg): 0.64 0.82 0.86 2/54 688
Raw data (stat): 688 (bsolo_lpr_cuts) R 687 25568 25567 0 -1 0 2514 0 0 0 992 5 0 0 25 0 1 0 776781624 23265280 2438 4294967295 134512640 134714508 3221224576 3221222804 1077414413 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5680 2438 1111 63 0 5617 0
vsize: 22720
[startup+20.0005 s]
Raw data (loadavg): 0.70 0.82 0.86 2/54 688
Raw data (stat): 688 (bsolo_lpr_cuts) R 687 25568 25567 0 -1 0 4676 0 0 0 1988 10 0 0 25 0 1 0 776781624 32096256 4600 4294967295 134512640 134714508 3221224576 3221223232 134527941 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 7836 4600 1111 63 0 7773 0
vsize: 31344
[startup+30.0002 s]
Raw data (loadavg): 0.74 0.83 0.86 2/54 688
Raw data (stat): 688 (bsolo_lpr_cuts) R 687 25568 25567 0 -1 0 7730 0 0 0 2981 17 0 0 25 0 1 0 776781624 44548096 7654 4294967295 134512640 134714508 3221224576 3221223232 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 10876 7654 1111 63 0 10813 0
vsize: 43504
[startup+32.3305 s]
Raw data (loadavg): 0.74 0.83 0.86 1/53 688
Raw data (stat): 688 (bsolo_lpr_cuts) R 687 25568 25567 0 -1 0 7730 0 0 0 2981 17 0 0 25 0 1 0 776781624 44548096 7654 4294967295 134512640 134714508 3221224576 3221223232 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 10876 7654 1111 63 0 10813 0
vsize: 0

Child status: 20
Real time (s): 32.3302
CPU time (s): 32.3161
CPU user time (s): 32.0801
CPU system time (s): 0.235964
CPU usage (%): 99.9564
Max. virtual memory (Kb): 43504
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####