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/www.csit.fsu.edu/~burkardt/datasets/mps/normalized-mps-v2-20-10-testprob.opb
MD5SUMda2667b4c8b643a355efc1f418e48913
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 9663726592
Optimality of the best value was proved YES
Number of terms in the objective function 56
Biggest coefficient in the objective function 9663676416
Number of bits for the biggest coefficient in the objective function 34
Sum of the numbers in the objective function 19327377394
Number of bits of the sum of numbers in the objective function 35
Biggest number in a constraint 9663676416
Number of bits of the biggest number in a constraint 34
Biggest sum of numbers in a constraint 19327377394
Number of bits of the biggest sum of numbers35
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark0.096985
Number of variables56
Total number of constraints5
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints5
Minimum length of a constraint12
Maximum length of a constraint44

Trace number 5928

Launcher Data

LAUNCH ON wulflinc21 THE 2005-09-20 02:27:27 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=3128 boxname=wulflinc21 idbench=784 idsolver=3 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  da2667b4c8b643a355efc1f418e48913  /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-testprob.opb
REAL COMMAND:  minisat+_script /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-testprob.opb
IDLAUNCH: 3128
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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		: 451.161
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:        840384 kB
Buffers:         30968 kB
Cached:         133620 kB
SwapCached:        788 kB
Active:          50172 kB
Inactive:       116964 kB
HighTotal:      131008 kB
HighFree:        24080 kB
LowTotal:       903652 kB
LowFree:        816304 kB
SwapTotal:     2097892 kB
SwapFree:      2096456 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5700 kB
Slab:            21516 kB
Committed_AS:    64368 kB
PageTables:        340 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-20 02:27:27 (client local time) WITH STATUS 30 IN 0.096985 SECONDS
stats: 3128 0 0.096985 30

Solver Data

c Parsing PB file...
c Converting 6 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: #
c   -- Clauses(.)/Splits(s): (none)
c ---[   5]---> BDD-cost:   12
c ---[   4]---> BDD-cost:   11
c ---[   2]---> BDD-cost:   40
c ---[   1]---> BDD-cost:   56
c ---[   0]---> BDD-cost:   43
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |     302      777 |     100       0        0     nan |  0.000 % |
c ==============================================================================
c Found solution: 9663751144
c ---[   0]---> Sorter-cost:  483     Base: 2 2 2 2 2 2 2 2 2 2 2 2 3 3
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         1 |    1453     3470 |     484       1        2     2.0 |  0.000 % |
c ==============================================================================
c Found solution: 9663728620
c ---[   0]---> Sorter-cost:  105     Base: 2 2 2 2 2 2 2 2 2 2 2 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         8 |    1549     3721 |     516       6       23     3.8 |  0.000 % |
c ==============================================================================
c Found solution: 9663727707
c ---[   0]---> Sorter-cost:   89     Base: 2 2 2 2 2 2 2 2 2 2 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        20 |    1447     3488 |     482      10       61     6.1 |  0.000 % |
c ==============================================================================
c Found solution: 9663727666
c ---[   0]---> Sorter-cost:  101     Base: 2 2 2 2 2 2 2 2 2 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        21 |    1589     3823 |     529      11       67     6.1 |  0.000 % |
c ==============================================================================
c Found solution: 9663727603
c ---[   0]---> Sorter-cost:    1     Base: 2 2 2 2 2 2 2 2 2 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        22 |    1594     3836 |     531      12       72     6.0 |  0.000 % |
c ==============================================================================
c Found solution: 9663726618
c ---[   0]---> Sorter-cost:   92     Base: 2 2 2 2 2 2 2 2 2 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        25 |    1530     3694 |     510       9       66     7.3 |  0.000 % |
c ==============================================================================
c Found solution: 9663726592
c ---[   0]---> Sorter-cost:   69     Base: 2 2 2 2 2 2 2 2 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        26 |     886     2174 |     295       6       61    10.2 |  0.000 % |
c ==============================================================================
c Optimal solution: 9663726592
s OPTIMUM FOUND
v -X1_bit_10 -X1_bit_9 -X1_bit_8 -X1_bit_7 -X1_bit_6 -X1_bit_5 -X1_bit_4 -X1_bit_3 -X1_bit_2 -X1_bit_1 -X1_bit0 -X1_bit1 X1_bit2 -X2_bit_10 -X2_bit_9 -X2_bit_8 -X2_bit_7 -X2_bit_6 -X2_bit_5 -X2_bit_4 -X2_bit_3 -X2_bit_2 -X2_bit_1 -X2_bit0 -X2_bit1 -X3_bit_10 -X3_bit_9 -X3_bit_8 -X3_bit_7 -X3_bit_6 -X3_bit_5 -X3_bit_4 -X3_bit_3 -X3_bit_2 -X3_bit_1 X3_bit0 -X3_bit1 X3_bit2 -X3_bit3 -X3_bit4 -X3_bit5 -X3_bit6 -X3_bit7 -X3_bit8 -X3_bit9 -X3_bit10 -X3_bit11 -X3_bit12 -X3_bit13 -X3_bit14 -X3_bit15 -X3_bit16 -X3_bit17 -X3_bit18 -X3_bit19 X3_bit20
c _______________________________________________________________________________
c 
c restarts              : 8
c conflicts             : 38             (567 /sec)
c decisions             : 584            (8718 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 0.066989 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/12533/stat): 12533 (minisat+_script) R 12532 12533 20602 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1732201953 712704 3 4294967295 134512640 135087896 3221224496 3221224496 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/12533/statm): 174 3 169 147 0 27 0
[pid=12533] 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=12534
New process pid=12535
New process pid=12536
execve syscall for /bin/sed executable
One traced child (pid=12535) 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=12536) exited with status: 0
One traced child (pid=12534) exited with status: 0
New process pid=12537
execve syscall for /oldhome/oroussel/solvers/minisat+_64-bit_static executable
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-testprob.opb
One traced child (pid=12537) exited with status: 30
One traced child (pid=12533) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 0.132548
CPU time (s): 0.096985
CPU user time (s): 0.071989
CPU system time (s): 0.024996
CPU usage (%): 73.1697
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

Verifier:	OK	9663726592