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-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-sierra.opb
MD5SUM	4eeca712f5c43ba16697ebe3806a3a23
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	36989
Biggest coefficient in the objective function	40063152947200
Number of bits for the biggest coefficient in the objective function	46
Sum of the numbers in the objective function	712861332680300
Number of bits of the sum of numbers in the objective function	50
Biggest number in a constraint	40063152947200
Number of bits of the biggest number in a constraint	46
Biggest sum of numbers in a constraint	712861332680300
Number of bits of the biggest sum of numbers	50
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.344947
Number of variables	38715
Total number of constraints	3263
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	3263
Minimum length of a constraint	10
Maximum length of a constraint	498

Trace number 28750

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc27 THE 2005-05-25 04:05:01 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=11480 boxname=wulflinc27 idbench=884 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  4eeca712f5c43ba16697ebe3806a3a23  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-sierra.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-sierra.opb
IDLAUNCH: 11480
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
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		: 451.169
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:        667836 kB
Buffers:         30124 kB
Cached:         314880 kB
SwapCached:        640 kB
Active:          59292 kB
Inactive:       288180 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        667584 kB
SwapTotal:     2097892 kB
SwapFree:      2096760 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5644 kB
Slab:            13744 kB
Committed_AS:    63584 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-25 04:10:17 (client local time) WITH STATUS 20 IN 315.176 SECONDS
stats: 11480 7 315.176 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 38715 variables and 3781 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 315.102 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 0.91 2/54 12869
Raw data (stat): 12869 (runsolver) R 12868 3394 3393 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 835854145 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+10.0009 s]
Raw data (loadavg): 0.94 0.97 0.91 2/54 12869
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 1140 0 0 0 994 3 0 0 25 0 1 0 835854145 17084416 1064 4294967295 134512640 134714508 3221224592 3221222820 1077414413 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4171 1064 1111 63 0 4108 0
vsize: 16684
[startup+20.0016 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 12869
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 1644 0 0 0 1993 4 0 0 25 0 1 0 835854145 19099648 1568 4294967295 134512640 134714508 3221224592 3221222820 1077414408 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4663 1568 1111 63 0 4600 0
vsize: 18652
[startup+30.0014 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 12869
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 2142 0 0 0 2993 5 0 0 25 0 1 0 835854145 21114880 2066 4294967295 134512640 134714508 3221224592 3221222820 1077414338 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5155 2066 1111 63 0 5092 0
vsize: 20620
[startup+40.0023 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 12869
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 2629 0 0 0 3992 6 0 0 25 0 1 0 835854145 23134208 2553 4294967295 134512640 134714508 3221224592 3221222820 1077414433 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5648 2553 1111 63 0 5585 0
vsize: 22592
[startup+50.0031 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 12869
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 3130 0 0 0 4992 7 0 0 25 0 1 0 835854145 25161728 3054 4294967295 134512640 134714508 3221224592 3221222820 1077414338 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 6143 3054 1111 63 0 6080 0
vsize: 24572
[startup+60.0039 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 3813 0 0 0 5990 8 0 0 25 0 1 0 835854145 27942912 3737 4294967295 134512640 134714508 3221224592 3221222820 1077414395 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 6822 3737 1111 63 0 6759 0
vsize: 27288
[startup+70.0037 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 4371 0 0 0 6989 10 0 0 25 0 1 0 835854145 30224384 4295 4294967295 134512640 134714508 3221224592 3221222820 1077414413 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 7379 4295 1111 63 0 7316 0
vsize: 29516
[startup+80.0036 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 5016 0 0 0 7988 11 0 0 25 0 1 0 835854145 32886784 4940 4294967295 134512640 134714508 3221224592 3221222820 1077414388 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8029 4940 1111 63 0 7966 0
vsize: 32116
[startup+90.0043 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 5673 0 0 0 8986 13 0 0 25 0 1 0 835854145 35545088 5597 4294967295 134512640 134714508 3221224592 3221222820 1077414336 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8678 5597 1111 63 0 8615 0
vsize: 34712
[startup+100.004 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 6370 0 0 0 9985 14 0 0 25 0 1 0 835854145 38498304 6294 4294967295 134512640 134714508 3221224592 3221222820 1077414351 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 9399 6294 1111 63 0 9336 0
vsize: 37596
[startup+110.005 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 6984 0 0 0 10984 16 0 0 25 0 1 0 835854145 41066496 6908 4294967295 134512640 134714508 3221224592 3221222820 1077414338 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 10026 6908 1111 63 0 9963 0
vsize: 40104
[startup+120.006 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 7746 0 0 0 11982 17 0 0 25 0 1 0 835854145 44126208 7670 4294967295 134512640 134714508 3221224592 3221222820 1077414388 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 10773 7670 1111 63 0 10710 0
vsize: 43092
[startup+130.006 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 8364 0 0 0 12982 18 0 0 25 0 1 0 835854145 46702592 8288 4294967295 134512640 134714508 3221224592 3221222820 1077414395 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 11402 8288 1111 63 0 11339 0
vsize: 45608
[startup+140.007 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 9019 0 0 0 13980 20 0 0 25 0 1 0 835854145 49270784 8943 4294967295 134512640 134714508 3221224592 3221222820 1077414420 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 12029 8943 1111 63 0 11966 0
vsize: 48116
[startup+150.008 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 9840 0 0 0 14979 21 0 0 25 0 1 0 835854145 52740096 9764 4294967295 134512640 134714508 3221224592 3221223248 134527946 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 12876 9764 1111 63 0 12813 0
vsize: 51504
[startup+160.008 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 10675 0 0 0 15978 23 0 0 25 0 1 0 835854145 56086528 10599 4294967295 134512640 134714508 3221224592 3221222820 1077414357 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 13693 10599 1111 63 0 13630 0
vsize: 54772
[startup+170.008 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 11624 0 0 0 16975 25 0 0 25 0 1 0 835854145 59953152 11548 4294967295 134512640 134714508 3221224592 3221222820 1077414413 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 14637 11548 1111 63 0 14574 0
vsize: 58548
[startup+180.008 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 12634 0 0 0 17974 27 0 0 25 0 1 0 835854145 64196608 12558 4294967295 134512640 134714508 3221224592 3221222824 1077378037 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 15673 12558 1111 63 0 15610 0
vsize: 62692
[startup+190.009 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 13665 0 0 0 18972 29 0 0 25 0 1 0 835854145 68468736 13589 4294967295 134512640 134714508 3221224592 3221223248 134527946 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 16716 13589 1111 63 0 16653 0
vsize: 66864
[startup+200.008 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 14722 0 0 0 19970 31 0 0 25 0 1 0 835854145 72736768 14646 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 17758 14646 1111 63 0 17695 0
vsize: 71032
[startup+210.01 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 15691 0 0 0 20969 33 0 0 25 0 1 0 835854145 76660736 15615 4294967295 134512640 134714508 3221224592 3221222820 1077414388 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 18716 15615 1111 63 0 18653 0
vsize: 74864
[startup+220.01 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 16665 0 0 0 21967 34 0 0 25 0 1 0 835854145 80748544 16589 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 19714 16589 1111 63 0 19651 0
vsize: 78856
[startup+230.01 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 17712 0 0 0 22966 36 0 0 25 0 1 0 835854145 84967424 17636 4294967295 134512640 134714508 3221224592 3221222820 1077414383 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 20744 17636 1111 63 0 20681 0
vsize: 82976
[startup+240.011 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 18828 0 0 0 23964 38 0 0 25 0 1 0 835854145 89473024 18752 4294967295 134512640 134714508 3221224592 3221222828 1076647867 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 21844 18752 1111 63 0 21781 0
vsize: 87376
[startup+250.012 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 20008 0 0 0 24962 40 0 0 25 0 1 0 835854145 94400512 19932 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 23047 19932 1111 63 0 22984 0
vsize: 92188
[startup+260.012 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 21220 0 0 0 25960 42 0 0 25 0 1 0 835854145 99328000 21144 4294967295 134512640 134714508 3221224592 3221223248 134527946 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 24250 21144 1111 63 0 24187 0
vsize: 97000
[startup+270.013 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 22671 0 0 0 26957 46 0 0 25 0 1 0 835854145 105283584 22595 4294967295 134512640 134714508 3221224592 3221223248 134527935 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 25704 22595 1111 63 0 25641 0
vsize: 102816
[startup+280.013 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 24068 0 0 0 27955 48 0 0 25 0 1 0 835854145 111144960 23992 4294967295 134512640 134714508 3221224592 3221223248 134527946 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 27135 23992 1111 63 0 27072 0
vsize: 108540
[startup+290.016 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 25441 0 0 0 28953 50 0 0 25 0 1 0 835854145 116752384 25365 4294967295 134512640 134714508 3221224592 3221223248 134527946 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 28504 25365 1111 63 0 28441 0
vsize: 114016
[startup+300.016 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 27107 0 0 0 29951 53 0 0 25 0 1 0 835854145 123637760 27031 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 30185 27031 1111 63 0 30122 0
vsize: 120740
[startup+310.017 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 31828 0 0 0 30940 64 0 0 25 0 1 0 835854145 142307328 31604 4294967295 134512640 134714508 3221224592 3221222872 1077360263 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 34743 31604 1111 63 0 34680 0
vsize: 138972
[startup+315.164 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 12871
Raw data (stat): 12869 (bsolo_lpr) R 12868 3394 3393 0 -1 0 31828 0 0 0 30940 64 0 0 25 0 1 0 835854145 142307328 31604 4294967295 134512640 134714508 3221224592 3221222872 1077360263 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 34743 31604 1111 63 0 34680 0
vsize: 0

Child status: 20
Real time (s): 315.163
CPU time (s): 315.176
CPU user time (s): 314.364
CPU system time (s): 0.811876
CPU usage (%): 100.004
Max. virtual memory (Kb): 138972
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####