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 22248

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc10 THE 2005-04-22 02:49:01 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=11750 boxname=wulflinc10 idbench=904 idsolver=11 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9e4c4999c6f95fcef879d3d86840d71a  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-bm23.opb
REAL COMMAND:  minisat+ -S /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-bm23.opb /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-bm23.opb
IDLAUNCH: 11750
/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:        479164 kB
Buffers:         28236 kB
Cached:         505428 kB
SwapCached:          0 kB
Active:          48288 kB
Inactive:       487836 kB
HighTotal:      131008 kB
HighFree:        25704 kB
LowTotal:       903652 kB
LowFree:        453460 kB
SwapTotal:     2097136 kB
SwapFree:      2096784 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6412 kB
Slab:            13588 kB
Committed_AS:    63480 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-22 02:49:34 (client local time) WITH STATUS 30 IN 33.065 SECONDS
stats: 11750 0 33.065 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:  476     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 =================================[SATELITE+]==================================
c |           |     ORIGINAL     |              LEARNT              |          |
c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
c ==============================================================================
c |         0 |   19873    46623 |    5961       0        0     nan |  0.000 % |
c   -- subsuming                       
c   -- var.elim.:  1000/8621          
c   -- var.elim.:  2000/8621          
c   -- var.elim.:  3000/8621          
c   -- var.elim.:  4000/8621          
c   -- var.elim.:  5000/8621          
c   -- var.elim.:  6000/8621          
c   -- var.elim.:  7000/8621          
c   -- var.elim.:  8000/8621          
c   -- var.elim.:  8621/8621          
c   -- var.elim.:  1000/4375          
c   -- var.elim.:  2000/4375          
c   -- var.elim.:  3000/4375          
c   -- var.elim.:  4000/4375          
c   -- var.elim.:  4375/4375          
c   -- var.elim.:  22/22          
c   -- var.elim.:  34/34          
c   -- subsuming                       
c   -- var.elim.:  1000/2612          
c   -- var.elim.:  2000/2612          
c   -- var.elim.:  2612/2612          
c   -- var.elim.:  1000/1094          
c   -- var.elim.:  1094/1094          
c   -- subsuming                       
c   -- var.elim.:  408/408          
c |         0 |   15881    53019 |      --       0       --      -- |     --   | -3992/6416
c |         0 |   15881    53019 |    6352       0        0     nan |  0.000 % |
c |       102 |   15881    53019 |    6987     102     3307    32.4 |  0.471 % |
c |       252 |   15881    53019 |    7686     252    10947    43.4 |  0.471 % |
c |       477 |   15881    53019 |    8455     477    24006    50.3 |  0.471 % |
c |       815 |   15881    53019 |    9300     815    48950    60.1 |  0.471 % |
c ==============================================================================
c (current CPU-time: 3.2925 s)
c ==============================================================================
c [1mFound solution: 49[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:  701     Base: 2 2
c =================================[SATELITE+]==================================
c |           |     ORIGINAL     |              LEARNT              |          |
c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
c ==============================================================================
c |      1008 |   16674    54888 |    5002    1008    62186    61.7 |  0.471 % |
c   -- subsuming                       
c   -- var.elim.:  545/545          
c   -- var.elim.:  272/272          
c   -- subsuming                       
c   -- var.elim.:  222/222          
c   -- var.elim.:  114/114          
c |      1008 |   16398    55256 |      --    1008       --      -- |     --   | -276/369
c |      1008 |   16398    55256 |    6559    1008    62186    61.7 |  0.471 % |
c ==============================================================================
c (current CPU-time: 3.56246 s)
c ==============================================================================
c [1mFound solution: 37[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    1     Base: 2 2
c =================================[SATELITE+]==================================
c |           |     ORIGINAL     |              LEARNT              |          |
c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
c ==============================================================================
c |      1038 |   16426    55322 |    4927    1038    64181    61.8 |  0.471 % |
c   -- subsuming                       
c   -- var.elim.:  110/110          
c   -- var.elim.:  17/17          
c   -- var.elim.:  5/5          
c |      1038 |   16412    55293 |      --    1038       --      -- |     --   | -14/-28
c |      1038 |   16412    55293 |    6564    1038    64181    61.8 |  0.471 % |
c |      1138 |   16412    55293 |    7221    1138    70348    61.8 |  0.491 % |
c |      1288 |   16412    55293 |    7943    1288    81051    62.9 |  0.491 % |
c |      1515 |   16412    55293 |    8737    1515    93730    61.9 |  0.491 % |
c |      1853 |   16412    55293 |    9611    1853   121947    65.8 |  0.491 % |
c |      2359 |   16412    55293 |   10572    2359   158846    67.3 |  0.491 % |
c |      3118 |   16412    55293 |   11629    3118   211473    67.8 |  0.491 % |
c |      4257 |   16412    55293 |   12792    4257   304474    71.5 |  0.491 % |
c |      5965 |   16412    55293 |   14072    5965   428366    71.8 |  0.492 % |
c |      8527 |   15790    52367 |   14892    4580   273386    59.7 |  2.901 % |
c ==============================================================================
c (current CPU-time: 20.8088 s)
c ==============================================================================
c [1mFound solution: 34[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:  577     Base: 2 2
c =================================[SATELITE+]==================================
c |           |     ORIGINAL     |              LEARNT              |          |
c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
c ==============================================================================
c |      9124 |   16898    54970 |    5069    5177   332213    64.2 |  2.901 % |
c   -- subsuming                       
c   -- var.elim.:  1000/1805          
c   -- var.elim.:  1805/1805          
c   -- var.elim.:  1000/1117          
c   -- var.elim.:  1117/1117          
c   -- var.elim.:  10/10          
c   -- subsuming                       
c   -- var.elim.:  384/384          
c   -- var.elim.:  68/68          
c |      9124 |   16566    55778 |      --    5177       --      -- |     --   | -332/809
c |      9124 |   16566    55778 |    6626    2862   112601    39.3 |  2.901 % |
c |      9225 |   16525    55627 |    7271    2962   121894    41.2 |  3.025 % |
c |      9375 |   16525    55627 |    7998    3112   141518    45.5 |  3.025 % |
c |      9600 |   16525    55627 |    8797    3337   156483    46.9 |  3.024 % |
c |      9937 |   16525    55627 |    9677    3674   195507    53.2 |  3.025 % |
c |     10447 |   16525    55627 |   10645    4184   243278    58.1 |  3.025 % |
c |     11209 |   16525    55627 |   11710    4946   302422    61.1 |  3.024 % |
c |     12349 |   16525    55627 |   12881    6086   403456    66.3 |  3.024 % |
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              : 24
c conflicts             : 13962          (424 /sec)
c decisions             : 20821          (632 /sec)
c propagations          : 10170023       (308688 /sec)
c inspects              : 44219420       (1342179 /sec)
c CPU time              : 32.946 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): 0.80 0.95 0.95 2/54 8742
Raw data (stat): 8742 (runsolver) R 8741 25347 25346 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 492031966 1052672 99 4294967295 134512640 135381576 3221224448 3221219692 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0011 s]
Raw data (loadavg): 0.83 0.95 0.95 2/54 8742
Raw data (stat): 8742 (minisat+) R 8741 25347 25346 0 -1 0 2340 0 0 0 990 8 0 0 25 0 1 0 492031966 10100736 1871 4294967295 134512640 134672761 3221224544 3221223728 134615619 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 2466 1871 603 41 0 2425 0
vsize: 9864
[startup+20.0011 s]
Raw data (loadavg): 0.86 0.95 0.95 2/54 8742
Raw data (stat): 8742 (minisat+) R 8741 25347 25346 0 -1 0 2542 0 0 0 1989 8 0 0 25 0 1 0 492031966 10891264 2073 4294967295 134512640 134672761 3221224544 3221223728 134615625 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 2659 2073 603 41 0 2618 0
vsize: 10636
[startup+30.0003 s]
Raw data (loadavg): 0.88 0.95 0.95 2/54 8742
Raw data (stat): 8742 (minisat+) R 8741 25347 25346 0 -1 0 2880 0 0 0 2988 10 0 0 25 0 1 0 492031966 11972608 2303 4294967295 134512640 134672761 3221224544 3221223728 134615663 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 2923 2303 603 41 0 2882 0
vsize: 11692
[startup+33.0786 s]
Raw data (loadavg): 0.89 0.95 0.95 1/53 8742
Raw data (stat): 8742 (minisat+) R 8741 25347 25346 0 -1 0 2880 0 0 0 2988 10 0 0 25 0 1 0 492031966 11972608 2303 4294967295 134512640 134672761 3221224544 3221223728 134615663 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 2923 2303 603 41 0 2882 0
vsize: 0

Child status: 30
Real time (s): 33.0783
CPU time (s): 33.065
CPU user time (s): 32.951
CPU system time (s): 0.113982
CPU usage (%): 99.9598
Max. virtual memory (Kb): 11692
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	34
#### END VERIFIER DATA ####