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/miplib/normalized-mps-v2-20-10-fixnet3.opb
MD5SUM349f4f626fe64dc0e2f8461de6820c95
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 563784272
Optimality of the best value was proved NO
Number of terms in the objective function 13946
Biggest coefficient in the objective function 53687091200
Number of bits for the biggest coefficient in the objective function 36
Sum of the numbers in the objective function 23716479945956
Number of bits of the sum of numbers in the objective function 45
Biggest number in a constraint 53687091200
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 23716479945956
Number of bits of the biggest sum of numbers45
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1239.99
Number of variables14036
Total number of constraints978
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)378
Number of constraints which are nor clauses,nor cardinality constraints600
Minimum length of a constraint1
Maximum length of a constraint1523

Trace number 41055 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-09 05:06:03 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=29126 boxname=wulflinc2 idbench=910 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  349f4f626fe64dc0e2f8461de6820c95  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-fixnet3.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-fixnet3.opb
IDLAUNCH: 29126
/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:        902920 kB
Buffers:          1592 kB
Cached:         108468 kB
SwapCached:       1392 kB
Active:          24124 kB
Inactive:        87888 kB
HighTotal:      131008 kB
HighFree:        22344 kB
LowTotal:       903652 kB
LowFree:        880576 kB
SwapTotal:     2097136 kB
SwapFree:      2094696 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4992 kB
Slab:            14008 kB
Committed_AS:    71780 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-09 05:06:45 (client local time) WITH STATUS 20 IN 41.6787 SECONDS
stats: 29126 7 41.6787 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 14036 variables and 634 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 41.65 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
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 1.01 1.00 0.92 2/54 20198
Raw data (stat): 20198 (runsolver) R 20197 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 907625599 884736 94 4294967295 134512640 135332820 3221224448 3221219628 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0002 s]
Raw data (loadavg): 1.00 1.00 0.92 2/54 20198
Raw data (stat): 20198 (bsolo_lpr_cuts-) R 20197 31399 31398 0 -1 0 2345 0 0 0 992 5 0 0 25 0 1 0 907625599 22433792 2265 4294967295 134512640 134716908 3221224560 3221222788 1077414385 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5477 2265 1111 63 0 5414 0
vsize: 21908
[startup+20.0009 s]
Raw data (loadavg): 1.00 1.00 0.92 2/54 20200
Raw data (stat): 20198 (bsolo_lpr_cuts-) R 20197 31399 31398 0 -1 0 4594 0 0 0 1988 10 0 0 25 0 1 0 907625599 31621120 4514 4294967295 134512640 134716908 3221224560 3221223216 134527946 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 7720 4514 1111 63 0 7657 0
vsize: 30880
[startup+30.0016 s]
Raw data (loadavg): 1.00 1.00 0.92 2/54 20200
Raw data (stat): 20198 (bsolo_lpr_cuts-) R 20197 31399 31398 0 -1 0 7609 0 0 0 2981 17 0 0 25 0 1 0 907625599 43950080 7529 4294967295 134512640 134716908 3221224560 3221222788 1077414408 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 10730 7529 1111 63 0 10667 0
vsize: 42920
[startup+40.0021 s]
Raw data (loadavg): 1.00 1.00 0.92 2/54 20200
Raw data (stat): 20198 (bsolo_lpr_cuts-) R 20197 31399 31398 0 -1 0 10729 0 0 0 3975 22 0 0 25 0 1 0 907625599 56770560 10649 4294967295 134512640 134716908 3221224560 3221222844 1077049379 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 13860 10649 1111 63 0 13797 0
vsize: 55440
[startup+41.6992 s]
Raw data (loadavg): 1.00 1.00 0.92 1/53 20200
Raw data (stat): 20198 (bsolo_lpr_cuts-) R 20197 31399 31398 0 -1 0 10729 0 0 0 3975 22 0 0 25 0 1 0 907625599 56770560 10649 4294967295 134512640 134716908 3221224560 3221222844 1077049379 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 13860 10649 1111 63 0 13797 0
vsize: 0

Child status: 20
Real time (s): 41.6989
CPU time (s): 41.6787
CPU user time (s): 41.3897
CPU system time (s): 0.288956
CPU usage (%): 99.9515
Max. virtual memory (Kb): 55440
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####