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/MIPLIB/miplib/normalized-mps-v2-20-10-bm23.opb
MD5SUM	9e4c4999c6f95fcef879d3d86840d71a
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	34
Optimality of the best value was proved	NO
Number of terms in the objective function	27
Biggest coefficient in the objective function	9
Number of bits for the biggest coefficient in the objective function	4
Sum of the numbers in the objective function	124
Number of bits of the sum of numbers in the objective function	7
Biggest number in a constraint	65
Number of bits of the biggest number in a constraint	7
Biggest sum of numbers in a constraint	182
Number of bits of the biggest sum of numbers	8
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	0.25796
Number of variables	27
Total number of constraints	47
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	27
Number of constraints which are nor clauses,nor cardinality constraints	20
Minimum length of a constraint	1
Maximum length of a constraint	26

Trace number 22457

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-04-22 03:26:36 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=11752 boxname=wulflinc5 idbench=904 idsolver=13 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9e4c4999c6f95fcef879d3d86840d71a  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-bm23.opb
REAL COMMAND:  minisat+ -w /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-bm23.opb /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-bm23.opb
IDLAUNCH: 11752
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        391216 kB
Buffers:         34092 kB
Cached:         588208 kB
SwapCached:        444 kB
Active:         110524 kB
Inactive:       513864 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        390964 kB
SwapTotal:     2097136 kB
SwapFree:      2095948 kB
Dirty:              52 kB
Writeback:           0 kB
Mapped:           5200 kB
Slab:            13316 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-22 03:27:05 (client local time) WITH STATUS 30 IN 28.3417 SECONDS
stats: 11752 0 28.3417 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 20 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[  19]---> Sorter-cost:  678     Base: 2 2
c ---[  18]---> Sorter-cost:  689     Base: 3 2
c ---[  17]---> Sorter-cost:  686     Base: 3 2
c ---[  16]---> Sorter-cost:  475     Base: 3 3
c ---[  15]---> Sorter-cost:  776     Base: 3 2
c ---[  14]---> Sorter-cost:  514     Base: 3 2
c ---[  13]---> Sorter-cost:  494     Base: 2 2
c ---[  12]---> Sorter-cost:  661     Base: 3 2
c ---[  11]---> Sorter-cost:  521     Base: 2 3
c ---[  10]---> Sorter-cost:  165     Base: 2
c ---[   9]---> Sorter-cost:  587     Base: 2 3
c ---[   8]---> Sorter-cost:  562     Base: 2 2
c ---[   7]---> Sorter-cost:  635     Base: 2 2
c ---[   6]---> Sorter-cost:  470     Base: 3 3
c ---[   5]---> Sorter-cost:  583     Base: 2 3
c ---[   4]---> Sorter-cost:  547     Base: 3 2
c ---[   3]---> Sorter-cost:  323     Base: 3 2
c ---[   2]---> Sorter-cost:  477     Base: 2 2
c ---[   1]---> Sorter-cost:  613     Base: 2 2 2
c ---[   0]---> Sorter-cost:  530     Base: 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |   26527    62446 |    8842       0        0     nan |  0.000 % |
c |       100 |   26527    62446 |    9726     100     2423    24.2 |  0.232 % |
c |       250 |   26527    62446 |   10698     250     5574    22.3 |  0.232 % |
c |       475 |   26527    62446 |   11768     475    10512    22.1 |  0.232 % |
c |       814 |   26527    62446 |   12945     814    17880    22.0 |  0.232 % |
c ==============================================================================
c [1mFound solution: 55[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:  702     Base: 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       905 |   28193    66369 |    9397     905    20379    22.5 |  0.232 % |
c |      1006 |   28193    66369 |   10336    1006    22726    22.6 |  0.229 % |
c |      1156 |   28193    66369 |   11370    1156    26719    23.1 |  0.229 % |
c |      1381 |   28193    66369 |   12507    1381    31200    22.6 |  0.229 % |
c |      1720 |   28193    66369 |   13758    1720    38550    22.4 |  0.229 % |
c ==============================================================================
c [1mFound solution: 54[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    3     Base: 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |      1994 |   28269    66559 |    9423    1994    45937    23.0 |  0.229 % |
c |      2094 |   28269    66559 |   10365    2094    49011    23.4 |  0.239 % |
c |      2247 |   28269    66559 |   11401    2247    52765    23.5 |  0.239 % |
c |      2473 |   28269    66559 |   12542    2473    59774    24.2 |  0.239 % |
c |      2811 |   28269    66559 |   13796    2811    68498    24.4 |  0.239 % |
c ==============================================================================
c [1mFound solution: 47[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    2     Base: 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |      3040 |   28306    66651 |    9435    3040    74791    24.6 |  0.239 % |
c |      3141 |   28306    66651 |   10378    3141    77554    24.7 |  0.250 % |
c |      3291 |   28306    66651 |   11416    3291    81689    24.8 |  0.250 % |
c |      3517 |   28306    66651 |   12557    3517    87455    24.9 |  0.250 % |
c ==============================================================================
c [1mFound solution: 35[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    2     Base: 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |      3576 |   28338    66727 |    9446    3576    88862    24.8 |  0.250 % |
c |      3676 |   28338    66727 |   10390    3676    91971    25.0 |  0.260 % |
c |      3827 |   28338    66727 |   11429    3827    95370    24.9 |  0.260 % |
c |      4052 |   28338    66727 |   12572    4052    99519    24.6 |  0.260 % |
c |      4391 |   28338    66727 |   13829    4391   106112    24.2 |  0.260 % |
c ==============================================================================
c [1mFound solution: 34[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    2     Base: 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |      4596 |   28345    66744 |    9448    4596   111737    24.3 |  0.260 % |
c |      4696 |   28345    66744 |   10392    4696   114376    24.4 |  0.271 % |
c |      4848 |   28345    66744 |   11432    4848   117979    24.3 |  0.271 % |
c |      5074 |   28345    66744 |   12575    5074   120918    23.8 |  0.271 % |
c |      5412 |   28275    66586 |   13832    4505   110778    24.6 |  0.488 % |
c |      5918 |   28275    66586 |   15216    5011   120501    24.0 |  0.488 % |
c |      6677 |   28275    66586 |   16737    5770   135965    23.6 |  0.488 % |
c |      7816 |   28275    66586 |   18411    6909   158419    22.9 |  0.488 % |
c ==============================================================================
c [1mOptimal solution: 34[0m
s OPTIMUM FOUND
v -C101_bit0 -C102_bit0 C103_bit0 -C104_bit0 C105_bit0 -C106_bit0 -C107_bit0 -C108_bit0 C109_bit0 -C110_bit0 -C111_bit0 -C112_bit0 -C113_bit0 -C114_bit0 C115_bit0 -C116_bit0 C117_bit0 -C118_bit0 -C119_bit0 C120_bit0 -C121_bit0 C122_bit0 -C123_bit0 -C124_bit0 -C125_bit0 -C126_bit0 C127_bit0
c _______________________________________________________________________________
c 
c restarts              : 32
c conflicts             : 8766           (310 /sec)
c decisions             : 11028          (390 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 28.2927 s
c _______________________________________________________________________________
#### 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): 0.88 0.95 0.93 2/54 8907
Raw data (stat): 8907 (runsolver) R 8906 24215 24214 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 492249695 1052672 99 4294967295 134512640 135381576 3221224448 3221219692 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+10.0008 s]
Raw data (loadavg): 0.90 0.96 0.93 2/54 8907
Raw data (stat): 8907 (minisat+) R 8906 24215 24214 0 -1 0 1202 0 0 0 995 3 0 0 25 0 1 0 492249695 6930432 1172 4294967295 134512640 134672761 3221224544 3221223744 134557836 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 1692 1172 603 41 0 1651 0
vsize: 6768
[startup+20.0017 s]
Raw data (loadavg): 0.91 0.96 0.93 2/54 8907
Raw data (stat): 8907 (minisat+) R 8906 24215 24214 0 -1 0 1287 0 0 0 1994 4 0 0 25 0 1 0 492249695 7200768 1257 4294967295 134512640 134672761 3221224544 3221223712 134560898 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 1758 1257 603 41 0 1717 0
vsize: 7032
[startup+28.3642 s]
Raw data (loadavg): 0.92 0.96 0.93 1/53 8907
Raw data (stat): 8907 (minisat+) R 8906 24215 24214 0 -1 0 1287 0 0 0 1994 4 0 0 25 0 1 0 492249695 7200768 1257 4294967295 134512640 134672761 3221224544 3221223712 134560898 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 1758 1257 603 41 0 1717 0
vsize: 0

Child status: 30
Real time (s): 28.3636
CPU time (s): 28.3417
CPU user time (s): 28.2967
CPU system time (s): 0.044993
CPU usage (%): 99.9228
Max. virtual memory (Kb): 7032
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	34
#### END VERIFIER DATA ####