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:
  1. 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.
  2. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser !
  3. 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.
  4. 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

Namemps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-misc02.opb
MD5SUMa0ad7d9714fa2256add068ab80d287bd
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1075471360
Optimality of the best value was proved YES
Number of terms in the objective function 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 1073741824
Number of bits of the biggest number in a constraint 31
Biggest sum of numbers in a constraint 3234157567
Number of bits of the biggest sum of numbers32
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark2.76758
Number of variables89
Total number of constraints97
Number of constraints which are clauses7
Number of constraints which are cardinality constraints (but not clauses)65
Number of constraints which are nor clauses,nor cardinality constraints25
Minimum length of a constraint1
Maximum length of a constraint79

Trace number 3828

Launcher Data

LAUNCH ON wulflinc24 THE 2005-09-19 03:08:20 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2862 boxname=wulflinc24 idbench=518 idsolver=3 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a0ad7d9714fa2256add068ab80d287bd  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-misc02.opb
REAL COMMAND:  minisat+_script /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-misc02.opb
IDLAUNCH: 2862
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.080
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		: 451.080
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:        895312 kB
Buffers:         33096 kB
Cached:          78504 kB
SwapCached:        736 kB
Active:          57364 kB
Inactive:        56784 kB
HighTotal:      131008 kB
HighFree:        48860 kB
LowTotal:       903652 kB
LowFree:        846452 kB
SwapTotal:     2097892 kB
SwapFree:      2096652 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           5736 kB
Slab:            19452 kB
Committed_AS:    64168 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-19 03:08:23 (client local time) WITH STATUS 30 IN 2.76758 SECONDS
stats: 2862 0 2.76758 30

Solver Data

c Parsing PB file...
c Converting 53 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: ##############
c   -- Clauses(.)/Splits(s): .......
c ---[  51]---> Adder-cost: 442   maxlim: 1073742847   bits: 32/31
c ---[  49]---> BDD-cost:   17
c ---[  47]---> BDD-cost:   17
c ---[  45]---> BDD-cost:   17
c ---[  44]---> BDD-cost:   38
c ---[  43]---> BDD-cost:   38
c ---[  34]---> BDD-cost:   22
c ---[  32]---> BDD-cost:   22
c ---[  30]---> BDD-cost:   22
c ---[  28]---> BDD-cost:   22
c ---[  26]---> BDD-cost:   22
c ---[  24]---> BDD-cost:   22
c ---[  22]---> BDD-cost:   22
c ---[  20]---> BDD-cost:   22
c ---[  18]---> BDD-cost:   22
c ---[  16]---> BDD-cost:   22
c ---[  15]---> BDD-cost:    9
c ---[  14]---> BDD-cost:    9
c ---[  13]---> BDD-cost:    3
c ---[  12]---> BDD-cost:    3
c ---[  11]---> BDD-cost:   15
c ---[  10]---> BDD-cost:   15
c ---[   9]---> BDD-cost:   15
c ---[   8]---> BDD-cost:   15
c ---[   7]---> BDD-cost:   26
c ---[   6]---> BDD-cost:   26
c ---[   5]---> BDD-cost:   15
c ---[   4]---> BDD-cost:   15
c ---[   3]---> BDD-cost:   26
c ---[   2]---> BDD-cost:   26
c ---[   1]---> BDD-cost:   15
c ---[   0]---> BDD-cost:   15
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |    4499    14784 |    1499       0        0     nan |  0.000 % |
c ==============================================================================
c Found solution: 1076341760
c ---[   0]---> BDD-cost:   20
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         3 |    4520    14834 |    1506       3       16     5.3 |  0.000 % |
c ==============================================================================
c Found solution: 1076188160
c ---[   0]---> BDD-cost:   20
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        28 |    4546    14892 |    1515      28      554    19.8 |  0.000 % |
c ==============================================================================
c Found solution: 1076024320
c ---[   0]---> BDD-cost:   16
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        93 |    4565    14934 |    1521      93     1396    15.0 |  0.000 % |
c ==============================================================================
c Found solution: 1075799040
c ---[   0]---> BDD-cost:   19
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       102 |    4582    14976 |    1527     102     1589    15.6 |  0.000 % |
c ==============================================================================
c Found solution: 1075645440
c ---[   0]---> BDD-cost:   18
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       102 |    4601    15019 |    1533     102     1589    15.6 |  0.000 % |
c ==============================================================================
c Found solution: 1075563520
c ---[   0]---> BDD-cost:   17
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       179 |    4618    15060 |    1539     179     4871    27.2 |  0.000 % |
c |       280 |    4618    15060 |    1692     280     6760    24.1 |  8.327 % |
c ==============================================================================
c Found solution: 1075471360
c ---[   0]---> BDD-cost:   15
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       336 |    4635    15098 |    1545     336     7591    22.6 |  8.327 % |
c |       436 |    4635    15098 |    1699     436    10648    24.4 |  8.368 % |
c |       586 |    4635    15098 |    1869     586    14021    23.9 |  8.368 % |
c |       812 |    4635    15098 |    2056     812    20303    25.0 |  8.368 % |
c |      1150 |    4635    15098 |    2262    1150    30674    26.7 |  8.368 % |
c |      1656 |    4635    15098 |    2488    1656    45965    27.8 |  8.368 % |
c |      2415 |    4635    15098 |    2737    2415    63036    26.1 |  8.368 % |
c ==============================================================================
c Optimal solution: 1075471360
s OPTIMUM FOUND
v -COL059_bit_10 -COL059_bit_9 -COL059_bit_8 -COL059_bit_7 -COL059_bit_6 -COL059_bit_5 -COL059_bit_4 -COL059_bit_3 -COL059_bit_2 -COL059_bit_1 COL059_bit0 -COL059_bit1 -COL059_bit2 COL059_bit3 COL059_bit4 -COL059_bit5 -COL059_bit6 COL059_bit7 -COL059_bit8 COL059_bit9 COL059_bit10 -COL059_bit11 -COL059_bit12 -COL059_bit13 -COL059_bit14 -COL059_bit15 -COL059_bit16 -COL059_bit17 -COL059_bit18 -COL059_bit19 COL059_bit20 -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
c _______________________________________________________________________________
c 
c restarts              : 15
c conflicts             : 3072           (1132 /sec)
c decisions             : 6114           (2253 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 2.71359 s
c _______________________________________________________________________________

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/31721/stat): 31721 (minisat+_script) R 31720 31721 20728 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1846536766 712704 3 4294967295 134512640 135087896 3221224496 3221224496 1073744960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/31721/statm): 174 3 169 147 0 27 0
[pid=31721] vsize: 696
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libtermcap.so.2
open syscall for file tls/i686/libtermcap.so.2
open syscall for file tls/mmx/libtermcap.so.2
open syscall for file tls/libtermcap.so.2
open syscall for file i686/mmx/libtermcap.so.2
open syscall for file i686/libtermcap.so.2
open syscall for file mmx/libtermcap.so.2
open syscall for file libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/i686/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/i686/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/i686/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/libtermcap.so.2
open syscall for file /etc/ld.so.cache
open syscall for file /lib/libtermcap.so.2
open syscall for file tls/i686/mmx/libdl.so.2
open syscall for file tls/i686/libdl.so.2
open syscall for file tls/mmx/libdl.so.2
open syscall for file tls/libdl.so.2
open syscall for file i686/mmx/libdl.so.2
open syscall for file i686/libdl.so.2
open syscall for file mmx/libdl.so.2
open syscall for file libdl.so.2
open syscall for file /oldhome/oroussel/lib/libdl.so.2
open syscall for file /lib/libdl.so.2
open syscall for file tls/i686/mmx/libc.so.6
open syscall for file tls/i686/libc.so.6
open syscall for file tls/mmx/libc.so.6
open syscall for file tls/libc.so.6
open syscall for file i686/mmx/libc.so.6
open syscall for file i686/libc.so.6
open syscall for file mmx/libc.so.6
open syscall for file libc.so.6
open syscall for file /oldhome/oroussel/lib/libc.so.6
open syscall for file /lib/tls/libc.so.6
open syscall for file /dev/tty
open syscall for file /etc/mtab
open syscall for file /proc/meminfo
open syscall for file /oldhome/oroussel/solvers/minisat+_script
New process pid=31722
New process pid=31723
New process pid=31724
execve syscall for /bin/sed executable
One traced child (pid=31723) exited with status: 0
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libc.so.6
open syscall for file tls/i686/libc.so.6
open syscall for file tls/mmx/libc.so.6
open syscall for file tls/libc.so.6
open syscall for file i686/mmx/libc.so.6
open syscall for file i686/libc.so.6
open syscall for file mmx/libc.so.6
open syscall for file libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/i686/libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/libc.so.6
open syscall for file /oldhome/oroussel/lib/i686/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/i686/libc.so.6
open syscall for file /oldhome/oroussel/lib/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/libc.so.6
open syscall for file /etc/ld.so.cache
open syscall for file /lib/tls/libc.so.6
One traced child (pid=31724) exited with status: 0
One traced child (pid=31722) exited with status: 0
New process pid=31725
execve syscall for /oldhome/oroussel/solvers/minisat+_64-bit_static executable
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-misc02.opb
One traced child (pid=31725) exited with status: 30
One traced child (pid=31721) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 2.81762
CPU time (s): 2.76758
CPU user time (s): 2.72458
CPU system time (s): 0.042993
CPU usage (%): 98.2241
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

Verifier:	OK	1075471360