PB'05 competition: run trace

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:

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.
SOLVER DATA
This is the output of the solver (stdout and stderr).
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.
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

Name	normalized-opb/mps-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-shell.opb
MD5SUM	6ed5be5611955015db1d7f0a8e864c5a
Bench Category	optimization, big integers (OPTBIGINT)
Has Objective Function	YES
Satisfiable	NO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function	27174
Biggest coefficient in the objective function	34015805440
Number of bits for the biggest coefficient in the objective function	35
Sum of the numbers in the objective function	501951111686
Number of bits of the sum of numbers in the objective function	39
Biggest number in a constraint	34015805440
Number of bits of the biggest number in a constraint	35
Biggest sum of numbers in a constraint	501951111686
Number of bits of the biggest sum of numbers	39
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.220965
Number of variables	30807
Total number of constraints	653
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	653
Minimum length of a constraint	16
Maximum length of a constraint	1040

Trace number 27635

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc7 THE 2005-05-24 23:05:21 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=16382 boxname=wulflinc7 idbench=1261 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  6ed5be5611955015db1d7f0a8e864c5a  /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-13-7-shell.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-13-7-shell.opb
IDLAUNCH: 16382
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.050
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		: 451.050
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:        536116 kB
Buffers:         35828 kB
Cached:         441024 kB
SwapCached:        100 kB
Active:         108536 kB
Inactive:       371048 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        535864 kB
SwapTotal:     2097136 kB
SwapFree:      2096820 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6744 kB
Slab:            13144 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-24 23:07:37 (client local time) WITH STATUS 20 IN 136.019 SECONDS
stats: 16382 7 136.019 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 30807 variables and 1181 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 135.962 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): 0.77 0.92 0.90 2/54 553
Raw data (stat): 553 (runsolver) R 552 24300 24299 0 -1 64 2 0 0 0 0 0 0 0 19 0 1 0 775848089 1052672 97 4294967295 134512640 135381576 3221224496 3221219848 134520647 0 0 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 97 215 215 0 42 0
vsize: 1028
[startup+10.0005 s]
Raw data (loadavg): 0.80 0.93 0.90 2/54 553
Raw data (stat): 553 (bsolo_lpr_cuts) R 552 24300 24299 0 -1 0 1545 0 0 0 993 4 0 0 25 0 1 0 775848089 19046400 1469 4294967295 134512640 134714508 3221224592 3221222820 1077414420 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4650 1469 1111 63 0 4587 0
vsize: 18600
[startup+20.0011 s]
Raw data (loadavg): 0.83 0.93 0.90 2/54 553
Raw data (stat): 553 (bsolo_lpr_cuts) R 552 24300 24299 0 -1 0 2519 0 0 0 1991 7 0 0 25 0 1 0 775848089 23007232 2443 4294967295 134512640 134714508 3221224592 3221222820 1077414388 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5617 2443 1111 63 0 5554 0
vsize: 22468
[startup+30.0008 s]
Raw data (loadavg): 0.86 0.93 0.90 2/54 553
Raw data (stat): 553 (bsolo_lpr_cuts) R 552 24300 24299 0 -1 0 3525 0 0 0 2988 9 0 0 25 0 1 0 775848089 27148288 3449 4294967295 134512640 134714508 3221224592 3221222820 1077414338 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6628 3449 1111 63 0 6565 0
vsize: 26512
[startup+40.0004 s]
Raw data (loadavg): 0.88 0.93 0.90 2/54 553
Raw data (stat): 553 (bsolo_lpr_cuts) R 552 24300 24299 0 -1 0 4701 0 0 0 3986 12 0 0 25 0 1 0 775848089 31944704 4625 4294967295 134512640 134714508 3221224592 3221222820 1077414345 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 7799 4625 1111 63 0 7736 0
vsize: 31196
[startup+50 s]
Raw data (loadavg): 0.90 0.93 0.90 2/54 553
Raw data (stat): 553 (bsolo_lpr_cuts) R 552 24300 24299 0 -1 0 6056 0 0 0 4982 15 0 0 25 0 1 0 775848089 37486592 5980 4294967295 134512640 134714508 3221224592 3221222820 1077414376 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 9152 5980 1111 63 0 9089 0
vsize: 36608
[startup+60.0011 s]
Raw data (loadavg): 0.91 0.94 0.90 2/54 555
Raw data (stat): 553 (bsolo_lpr_cuts) R 552 24300 24299 0 -1 0 7534 0 0 0 5981 17 0 0 25 0 1 0 775848089 43548672 7458 4294967295 134512640 134714508 3221224592 3221222820 1077414363 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 10632 7458 1111 63 0 10569 0
vsize: 42528
[startup+70.0013 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 555
Raw data (stat): 553 (bsolo_lpr_cuts) R 552 24300 24299 0 -1 0 9027 0 0 0 6978 20 0 0 25 0 1 0 775848089 49627136 8951 4294967295 134512640 134714508 3221224592 3221222820 1077414338 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 12116 8951 1111 63 0 12053 0
vsize: 48464
[startup+80.0009 s]
Raw data (loadavg): 0.94 0.94 0.90 2/54 555
Raw data (stat): 553 (bsolo_lpr_cuts) R 552 24300 24299 0 -1 0 10635 0 0 0 7975 24 0 0 25 0 1 0 775848089 56254464 10559 4294967295 134512640 134714508 3221224592 3221222820 1077414363 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 13734 10559 1111 63 0 13671 0
vsize: 54936
[startup+90.0006 s]
Raw data (loadavg): 0.95 0.94 0.90 2/54 555
Raw data (stat): 553 (bsolo_lpr_cuts) R 552 24300 24299 0 -1 0 12326 0 0 0 8972 26 0 0 25 0 1 0 775848089 63279104 12250 4294967295 134512640 134714508 3221224592 3221223248 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 15449 12250 1111 63 0 15386 0
vsize: 61796
[startup+100 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 555
Raw data (stat): 553 (bsolo_lpr_cuts) R 552 24300 24299 0 -1 0 13948 0 0 0 9968 30 0 0 25 0 1 0 775848089 69910528 13872 4294967295 134512640 134714508 3221224592 3221222820 1077414360 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 17068 13872 1111 63 0 17005 0
vsize: 68272
[startup+110.001 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 555
Raw data (stat): 553 (bsolo_lpr_cuts) R 552 24300 24299 0 -1 0 15765 0 0 0 10965 34 0 0 25 0 1 0 775848089 77238272 15689 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 18857 15689 1111 63 0 18794 0
vsize: 75428
[startup+120.002 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 555
Raw data (stat): 553 (bsolo_lpr_cuts) R 552 24300 24299 0 -1 0 17665 0 0 0 11961 38 0 0 25 0 1 0 775848089 85004288 17589 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 20753 17589 1111 63 0 20690 0
vsize: 83012
[startup+130.002 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 555
Raw data (stat): 553 (bsolo_lpr_cuts) R 552 24300 24299 0 -1 0 21242 0 0 0 12953 46 0 0 25 0 1 0 775848089 99647488 21166 4294967295 134512640 134714508 3221224592 3221221124 1077364979 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 24328 21166 1111 63 0 24265 0
vsize: 97312
[startup+136.026 s]
Raw data (loadavg): 0.97 0.95 0.91 1/53 555
Raw data (stat): 553 (bsolo_lpr_cuts) R 552 24300 24299 0 -1 0 21242 0 0 0 12953 46 0 0 25 0 1 0 775848089 99647488 21166 4294967295 134512640 134714508 3221224592 3221221124 1077364979 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 24328 21166 1111 63 0 24265 0
vsize: 0

Child status: 20
Real time (s): 136.026
CPU time (s): 136.019
CPU user time (s): 135.38
CPU system time (s): 0.638902
CPU usage (%): 99.9953
Max. virtual memory (Kb): 97312
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####