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 26624 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc10 THE 2005-05-24 16:45:04 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=11820 boxname=wulflinc10 idbench=910 idsolver=3 numberseed=0
MD5SUM SOLVER: 03a6a792daea978e4202f78851741568  /oldhome/oroussel/solvers/bsolo_mis
MD5SUM BENCH:  349f4f626fe64dc0e2f8461de6820c95  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-fixnet3.opb
REAL COMMAND:  bsolo_mis /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-fixnet3.opb
IDLAUNCH: 11820
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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:        889688 kB
Buffers:         34480 kB
Cached:          89396 kB
SwapCached:        224 kB
Active:          73080 kB
Inactive:        53576 kB
HighTotal:      131008 kB
HighFree:        40684 kB
LowTotal:       903652 kB
LowFree:        849004 kB
SwapTotal:     2097136 kB
SwapFree:      2096792 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6568 kB
Slab:            12740 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-24 16:45:43 (client local time) WITH STATUS 20 IN 38.9361 SECONDS
stats: 11820 7 38.9361 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Initial problem consists of 14036 variables and 634 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 38.904 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): 0.73 0.93 0.94 2/54 17506
Raw data (stat): 17506 (runsolver) R 17505 15547 15546 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 773571163 1052672 99 4294967295 134512640 135381576 3221224496 3221219712 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.001 s]
Raw data (loadavg): 0.77 0.94 0.94 2/54 17506
Raw data (stat): 17506 (bsolo_mis) R 17505 15547 15546 0 -1 0 2615 0 0 0 993 5 0 0 25 0 1 0 773571163 24121344 2593 4294967295 134512640 134714540 3221224592 3221222820 1077414426 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5889 2593 1111 63 0 5826 0
vsize: 23556
[startup+20.0013 s]
Raw data (loadavg): 0.88 0.95 0.95 2/54 17506
Raw data (stat): 17506 (bsolo_mis) R 17505 15547 15546 0 -1 0 5238 0 0 0 1986 12 0 0 25 0 1 0 773571163 34869248 5216 4294967295 134512640 134714540 3221224592 3221222820 1077414410 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8513 5216 1111 63 0 8450 0
vsize: 34052
[startup+30.0006 s]
Raw data (loadavg): 0.90 0.96 0.95 2/54 17506
Raw data (stat): 17506 (bsolo_mis) R 17505 15547 15546 0 -1 0 8532 0 0 0 2980 18 0 0 25 0 1 0 773571163 48349184 8510 4294967295 134512640 134714540 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 11804 8510 1111 63 0 11741 0
vsize: 47216
[startup+38.9495 s]
Raw data (loadavg): 0.91 0.96 0.95 1/53 17506
Raw data (stat): 17506 (bsolo_mis) R 17505 15547 15546 0 -1 0 8532 0 0 0 2980 18 0 0 25 0 1 0 773571163 48349184 8510 4294967295 134512640 134714540 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 11804 8510 1111 63 0 11741 0
vsize: 0

Child status: 20
Real time (s): 38.9489
CPU time (s): 38.9361
CPU user time (s): 38.6341
CPU system time (s): 0.301954
CPU usage (%): 99.9671
Max. virtual memory (Kb): 47216
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####