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/MIPLIB/miplib/normalized-mps-v2-13-7-khb05250.opb
MD5SUM	16cce9479fbccbb902b090a1fce13788
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	25004
Biggest coefficient in the objective function	6104809472
Number of bits for the biggest coefficient in the objective function	33
Sum of the numbers in the objective function	5527422840150
Number of bits of the sum of numbers in the objective function	43
Biggest number in a constraint	6104809472
Number of bits of the biggest number in a constraint	33
Biggest sum of numbers in a constraint	5527422840150
Number of bits of the biggest sum of numbers	43
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.221965
Number of variables	25544
Total number of constraints	126
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	24
Number of constraints which are nor clauses,nor cardinality constraints	102
Minimum length of a constraint	1
Maximum length of a constraint	1020

Trace number 27450

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc17 THE 2005-05-24 22:07:31 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=16875 boxname=wulflinc17 idbench=1299 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  16cce9479fbccbb902b090a1fce13788  /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-13-7-khb05250.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-13-7-khb05250.opb
IDLAUNCH: 16875
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.072
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		: 451.072
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:        423504 kB
Buffers:         19380 kB
Cached:         549436 kB
SwapCached:        480 kB
Active:          58336 kB
Inactive:       527620 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        423252 kB
SwapTotal:     2097892 kB
SwapFree:      2097148 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6040 kB
Slab:            19564 kB
Committed_AS:    63592 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-24 22:10:29 (client local time) WITH STATUS 20 IN 177.337 SECONDS
stats: 16875 7 177.337 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 25544 variables and 178 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 177.289 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): 0.93 0.97 0.99 2/54 13327
Raw data (stat): 13327 (runsolver) R 13326 7475 7474 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 833726402 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+9.99985 s]
Raw data (loadavg): 0.94 0.97 0.99 2/54 13327
Raw data (stat): 13327 (bsolo_lpr) R 13326 7475 7474 0 -1 0 1400 0 0 0 994 4 0 0 25 0 1 0 833726402 18108416 1324 4294967295 134512640 134714508 3221224592 3221222820 1077414435 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4421 1324 1111 63 0 4358 0
vsize: 17684
[startup+20 s]
Raw data (loadavg): 0.95 0.97 0.99 2/54 13327
Raw data (stat): 13327 (bsolo_lpr) R 13326 7475 7474 0 -1 0 2047 0 0 0 1993 5 0 0 25 0 1 0 833726402 20807680 1971 4294967295 134512640 134714508 3221224592 3221222820 1077414370 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5080 1971 1111 63 0 5017 0
vsize: 20320
[startup+30.0003 s]
Raw data (loadavg): 0.95 0.97 0.99 2/54 13327
Raw data (stat): 13327 (bsolo_lpr) R 13326 7475 7474 0 -1 0 2717 0 0 0 2991 7 0 0 25 0 1 0 833726402 23498752 2641 4294967295 134512640 134714508 3221224592 3221222820 1077414358 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5737 2641 1111 63 0 5674 0
vsize: 22948
[startup+39.9996 s]
Raw data (loadavg): 0.96 0.97 0.99 2/54 13327
Raw data (stat): 13327 (bsolo_lpr) R 13326 7475 7474 0 -1 0 3431 0 0 0 3990 8 0 0 25 0 1 0 833726402 26476544 3355 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 6464 3355 1111 63 0 6401 0
vsize: 25856
[startup+50.0005 s]
Raw data (loadavg): 0.97 0.97 0.99 2/54 13327
Raw data (stat): 13327 (bsolo_lpr) R 13326 7475 7474 0 -1 0 4184 0 0 0 4988 10 0 0 25 0 1 0 833726402 29581312 4108 4294967295 134512640 134714508 3221224592 3221222820 1077414382 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 7222 4108 1111 63 0 7159 0
vsize: 28888
[startup+60.0001 s]
Raw data (loadavg): 0.97 0.97 0.99 2/54 13327
Raw data (stat): 13327 (bsolo_lpr) R 13326 7475 7474 0 -1 0 4968 0 0 0 5988 11 0 0 25 0 1 0 833726402 32833536 4892 4294967295 134512640 134714508 3221224592 3221222820 1077414363 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8016 4892 1111 63 0 7953 0
vsize: 32064
[startup+69.9994 s]
Raw data (loadavg): 0.97 0.97 0.99 2/54 13327
Raw data (stat): 13327 (bsolo_lpr) R 13326 7475 7474 0 -1 0 5784 0 0 0 6986 12 0 0 25 0 1 0 833726402 36085760 5708 4294967295 134512640 134714508 3221224592 3221222820 1077414351 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8810 5708 1111 63 0 8747 0
vsize: 35240
[startup+80.0006 s]
Raw data (loadavg): 0.98 0.97 0.99 2/54 13327
Raw data (stat): 13327 (bsolo_lpr) R 13326 7475 7474 0 -1 0 6671 0 0 0 7985 14 0 0 25 0 1 0 833726402 39772160 6595 4294967295 134512640 134714508 3221224592 3221222820 1077414370 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 9710 6595 1111 63 0 9647 0
vsize: 38840
[startup+89.9999 s]
Raw data (loadavg): 0.98 0.97 0.99 2/54 13327
Raw data (stat): 13327 (bsolo_lpr) R 13326 7475 7474 0 -1 0 7612 0 0 0 8983 16 0 0 25 0 1 0 833726402 43589632 7536 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 10642 7536 1111 63 0 10579 0
vsize: 42568
[startup+100 s]
Raw data (loadavg): 0.98 0.97 0.99 2/54 13327
Raw data (stat): 13327 (bsolo_lpr) R 13326 7475 7474 0 -1 0 8609 0 0 0 9981 18 0 0 25 0 1 0 833726402 47685632 8533 4294967295 134512640 134714508 3221224592 3221222820 1077414385 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 11642 8533 1111 63 0 11579 0
vsize: 46568
[startup+110 s]
Raw data (loadavg): 0.99 0.97 0.99 2/54 13327
Raw data (stat): 13327 (bsolo_lpr) R 13326 7475 7474 0 -1 0 9688 0 0 0 10979 20 0 0 25 0 1 0 833726402 52068352 9612 4294967295 134512640 134714508 3221224592 3221222820 1077414413 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 12712 9612 1111 63 0 12649 0
vsize: 50848
[startup+120 s]
Raw data (loadavg): 0.99 0.97 0.99 2/54 13327
Raw data (stat): 13327 (bsolo_lpr) R 13326 7475 7474 0 -1 0 10859 0 0 0 11976 23 0 0 25 0 1 0 833726402 56877056 10783 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 13886 10783 1111 63 0 13823 0
vsize: 55544
[startup+130 s]
Raw data (loadavg): 0.99 0.97 0.99 2/54 13327
Raw data (stat): 13327 (bsolo_lpr) R 13326 7475 7474 0 -1 0 12229 0 0 0 12974 26 0 0 25 0 1 0 833726402 62689280 12153 4294967295 134512640 134714508 3221224592 3221223248 134527946 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 15305 12153 1111 63 0 15242 0
vsize: 61220
[startup+140 s]
Raw data (loadavg): 0.99 0.97 0.99 2/54 13327
Raw data (stat): 13327 (bsolo_lpr) R 13326 7475 7474 0 -1 0 13760 0 0 0 13972 28 0 0 25 0 1 0 833726402 68911104 13684 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 16824 13684 1111 63 0 16761 0
vsize: 67296
[startup+150.002 s]
Raw data (loadavg): 0.99 0.97 0.99 2/54 13327
Raw data (stat): 13327 (bsolo_lpr) R 13326 7475 7474 0 -1 0 15441 0 0 0 14970 30 0 0 25 0 1 0 833726402 75694080 15365 4294967295 134512640 134714508 3221224592 3221223248 134527946 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 18480 15365 1111 63 0 18417 0
vsize: 73920
[startup+160.001 s]
Raw data (loadavg): 0.99 0.97 0.99 2/54 13327
Raw data (stat): 13327 (bsolo_lpr) R 13326 7475 7474 0 -1 0 17266 0 0 0 15967 33 0 0 25 0 1 0 833726402 83185664 17190 4294967295 134512640 134714508 3221224592 3221222944 134567410 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 20309 17190 1111 63 0 20246 0
vsize: 81236
[startup+170.001 s]
Raw data (loadavg): 0.99 0.97 0.99 2/54 13327
Raw data (stat): 13327 (bsolo_lpr) R 13326 7475 7474 0 -1 0 19742 0 0 0 16961 39 0 0 25 0 1 0 833726402 93253632 19666 4294967295 134512640 134714508 3221224592 3221222896 134566562 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 22767 19666 1111 63 0 22704 0
vsize: 91068
[startup+177.333 s]
Raw data (loadavg): 0.99 0.97 0.99 1/53 13327
Raw data (stat): 13327 (bsolo_lpr) R 13326 7475 7474 0 -1 0 19742 0 0 0 16961 39 0 0 25 0 1 0 833726402 93253632 19666 4294967295 134512640 134714508 3221224592 3221222896 134566562 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 22767 19666 1111 63 0 22704 0
vsize: 0

Child status: 20
Real time (s): 177.332
CPU time (s): 177.337
CPU user time (s): 176.834
CPU system time (s): 0.502923
CPU usage (%): 100.003
Max. virtual memory (Kb): 91068
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####