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-misc01.opb
MD5SUM	c625a850881ad6f6b45ac56ea24bd563
Bench Category	optimization, medium integers (OPTMEDINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	1120576
Optimality of the best value was proved	NO
Number of terms in the objective function	21
Biggest coefficient in the objective function	1048576
Number of bits for the biggest coefficient in the objective function	21
Sum of the numbers in the objective function	2097151
Number of bits of the sum of numbers in the objective function	21
Biggest number in a constraint	1048576
Number of bits of the biggest number in a constraint	21
Biggest sum of numbers in a constraint	3441919
Number of bits of the biggest sum of numbers	22
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	0.297953
Number of variables	103
Total number of constraints	136
Number of constraints which are clauses	15
Number of constraints which are cardinality constraints (but not clauses)	88
Number of constraints which are nor clauses,nor cardinality constraints	33
Minimum length of a constraint	1
Maximum length of a constraint	91

Trace number 19091

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc19 THE 2005-04-21 18:07:31 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=16939 boxname=wulflinc19 idbench=1303 idsolver=13 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  c625a850881ad6f6b45ac56ea24bd563  /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-13-7-misc01.opb
REAL COMMAND:  minisat+ -w /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-13-7-misc01.opb /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-13-7-misc01.opb
IDLAUNCH: 16939
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.037
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	: 3
cpu MHz		: 451.037
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:        682044 kB
Buffers:         26968 kB
Cached:         301528 kB
SwapCached:        556 kB
Active:          37920 kB
Inactive:       292628 kB
HighTotal:      131008 kB
HighFree:         1736 kB
LowTotal:       903652 kB
LowFree:        680308 kB
SwapTotal:     2097892 kB
SwapFree:      2096388 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5164 kB
Slab:            16412 kB
Committed_AS:    63820 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-21 18:07:33 (client local time) WITH STATUS 30 IN 2.19367 SECONDS
stats: 16939 0 2.19367 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 71 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: #################
c   -- Clauses(.)/Splits(s): ...............
c ---[  69]---> Adder-cost: 392   maxlim: 1048703   bits: 22/21
c ---[  67]---> BDD-cost:   21
c ---[  65]---> BDD-cost:   21
c ---[  63]---> BDD-cost:   21
c ---[  61]---> BDD-cost:   21
c ---[  60]---> BDD-cost:   92
c ---[  59]---> BDD-cost:   92
c ---[  42]---> BDD-cost:   33
c ---[  40]---> BDD-cost:   33
c ---[  38]---> BDD-cost:   33
c ---[  36]---> BDD-cost:   33
c ---[  34]---> Sorter-cost:   65     Base:
c ---[  32]---> BDD-cost:   33
c ---[  30]---> BDD-cost:   33
c ---[  28]---> BDD-cost:   33
c ---[  26]---> BDD-cost:   33
c ---[  24]---> BDD-cost:   33
c ---[  22]---> Sorter-cost:   65     Base:
c ---[  20]---> BDD-cost:   33
c ---[  19]---> BDD-cost:   13
c ---[  18]---> BDD-cost:   13
c ---[  17]---> BDD-cost:    7
c ---[  16]---> BDD-cost:    7
c ---[  15]---> BDD-cost:   32
c ---[  14]---> BDD-cost:   32
c ---[  13]---> BDD-cost:   18
c ---[  12]---> BDD-cost:   18
c ---[  11]---> BDD-cost:   32
c ---[  10]---> BDD-cost:   32
c ---[   9]---> BDD-cost:   18
c ---[   8]---> BDD-cost:   18
c ---[   7]---> BDD-cost:   32
c ---[   6]---> BDD-cost:   32
c ---[   5]---> BDD-cost:   18
c ---[   4]---> BDD-cost:   18
c ---[   3]---> BDD-cost:   18
c ---[   2]---> BDD-cost:   18
c ---[   1]---> BDD-cost:   18
c ---[   0]---> BDD-cost:   18
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |    7803    24264 |    2601       0        0     nan |  0.000 % |
c ==============================================================================
c [1mFound solution: 1132096[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> BDD-cost:   14
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        21 |    7819    24298 |    2606      11      128    11.6 |  0.000 % |
c ==============================================================================
c [1mFound solution: 1121984[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> BDD-cost:   14
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        32 |    7845    24364 |    2615      22      277    12.6 |  0.000 % |
c |       136 |    7845    24364 |    2876     126     4207    33.4 |  6.231 % |
c ==============================================================================
c [1mFound solution: 1120576[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> BDD-cost:   13
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       172 |    7873    24434 |    2624     162     5397    33.3 |  6.231 % |
c |       274 |    7873    24434 |    2886     264     9072    34.4 |  6.262 % |
c |       426 |    7873    24434 |    3175     416    13851    33.3 |  6.262 % |
c |       654 |    7873    24434 |    3492     644    19387    30.1 |  6.262 % |
c |       991 |    7873    24434 |    3841     981    29533    30.1 |  6.262 % |
c |      1499 |    7873    24434 |    4225    1489    43442    29.2 |  6.262 % |
c |      2260 |    7873    24434 |    4648    2250    63204    28.1 |  6.262 % |
c ==============================================================================
c [1mOptimal solution: 1120576[0m
s OPTIMUM FOUND
v -COL083_bit_7 -COL083_bit_6 -COL083_bit_5 -COL083_bit_4 -COL083_bit_3 -COL083_bit_2 COL083_bit_1 -COL083_bit0 COL083_bit1 -COL083_bit2 -COL083_bit3 COL083_bit4 COL083_bit5 -COL083_bit6 -COL083_bit7 -COL083_bit8 COL083_bit9 -COL083_bit10 -COL083_bit11 -COL083_bit12 COL083_bit13 -COL001_bit0 -COL002_bit0 -COL003_bit0 -COL004_bit0 -COL005_bit0 -COL006_bit0 -COL007_bit0 -COL008_bit0 COL009_bit0 -COL010_bit0 -COL011_bit0 -COL012_bit0 COL013_bit0 -COL014_bit0 -COL015_bit0 -COL016_bit0 -COL017_bit0 -COL018_bit0 -COL019_bit0 -COL020_bit0 -COL021_bit0 -COL022_bit0 -COL023_bit0 -COL024_bit0 -COL025_bit0 -COL026_bit0 -COL027_bit0 -COL028_bit0 -COL029_bit0 -COL030_bit0 -COL031_bit0 -COL032_bit0 -COL033_bit0 -COL034_bit0 -COL035_bit0 COL036_bit0 -COL037_bit0 -COL038_bit0 -COL039_bit0 -COL040_bit0 -COL041_bit0 COL042_bit0 -COL043_bit0 -COL044_bit0 -COL045_bit0 -COL046_bit0 -COL047_bit0 -COL048_bit0 -COL049_bit0 -COL050_bit0 COL051_bit0 -COL052_bit0 -COL053_bit0 -COL054_bit0 -COL055_bit0 -COL056_bit0 -COL057_bit0 -COL058_bit0 -COL059_bit0 -COL060_bit0 -COL061_bit0 -COL062_bit0 -COL063_bit0 -COL064_bit0 -COL065_bit0 -COL066_bit0 -COL067_bit0 COL068_bit0 -COL069_bit0 -COL070_bit0 -COL071_bit0 -COL072_bit0 COL073_bit0 COL074_bit0 COL075_bit0 -COL076_bit0 COL077_bit0 -COL078_bit0 -COL079_bit0 COL080_bit0 -COL081_bit0 COL082_bit0
c _______________________________________________________________________________
c 
c restarts              : 11
c conflicts             : 3195           (1471 /sec)
c decisions             : 5235           (2409 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 2.17267 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): 0.72 0.93 0.92 2/55 6134
Raw data (stat): 6134 (runsolver) R 6133 22929 22928 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 547110637 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+2.2032 s]
Raw data (loadavg): 0.74 0.93 0.92 1/54 6134
Raw data (stat): 6134 (runsolver) R 6133 22929 22928 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 547110637 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: 0

Child status: 30
Real time (s): 2.2029
CPU time (s): 2.19367
CPU user time (s): 2.17367
CPU system time (s): 0.019996
CPU usage (%): 99.5809
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	1120576
#### END VERIFIER DATA ####