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/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-rail507.opb
MD5SUM3525728b1c2480586834886de2d50400
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 284672000000000
Optimality of the best value was proved NO
Number of terms in the objective function 63309
Biggest coefficient in the objective function 53687091200000000000
Number of bits for the biggest coefficient in the objective function 66
Sum of the numbers in the objective function 215947469635884908544
Number of bits of the sum of numbers in the objective function 68
Biggest number in a constraint 53687091200000000000
Number of bits of the biggest number in a constraint 66
Biggest sum of numbers in a constraint 215947469635884908544
Number of bits of the biggest sum of numbers68
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1234.36
Number of variables63009
Total number of constraints63518
Number of constraints which are clauses507
Number of constraints which are cardinality constraints (but not clauses)63011
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint59416

Trace number 4969

Launcher Data

LAUNCH ON wulflinc19 THE 2005-09-19 21:49:16 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=767 boxname=wulflinc19 idbench=767 idsolver=1 numberseed=0
MD5SUM SOLVER: 38f99674050b34630888bf623b924b59  /oldhome/oroussel/solvers/bsolo
MD5SUM BENCH:  3525728b1c2480586834886de2d50400  /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-rail507.opb
REAL COMMAND:  bsolo /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-rail507.opb
IDLAUNCH: 767
/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:        864896 kB
Buffers:         36532 kB
Cached:         105368 kB
SwapCached:        832 kB
Active:          86628 kB
Inactive:        57804 kB
HighTotal:      131008 kB
HighFree:        24948 kB
LowTotal:       903652 kB
LowFree:        839948 kB
SwapTotal:     2097892 kB
SwapFree:      2096460 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           5700 kB
Slab:            19684 kB
Committed_AS:    64184 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-19 21:49:40 (client local time) WITH STATUS 0 IN 20.4809 SECONDS
stats: 767 7 20.4809 0

Solver Data

c INFO: OSL Context initialized.
c Caught signal: 15
s UNKNOWN
c Exit Code: 0

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/26452/stat): 26452 (bsolo) R 26451 26452 5929 0 -1 0 19 0 0 0 0 0 0 0 22 0 1 0 1853246793 438272 3 4294967295 134512640 134736556 3221224560 3221224560 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/26452/statm): 107 3 90 68 0 39 0
[pid=26452] vsize: 428
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libosl.so
open syscall for file tls/i686/libosl.so
open syscall for file tls/mmx/libosl.so
open syscall for file tls/libosl.so
open syscall for file i686/mmx/libosl.so
open syscall for file i686/libosl.so
open syscall for file mmx/libosl.so
open syscall for file libosl.so
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/i686/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/libosl.so
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open syscall for file /oldhome/oroussel/lib/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/libosl.so
open syscall for file tls/i686/mmx/libstdc++-libc6.2-2.so.3
open syscall for file tls/i686/libstdc++-libc6.2-2.so.3
open syscall for file tls/mmx/libstdc++-libc6.2-2.so.3
open syscall for file tls/libstdc++-libc6.2-2.so.3
open syscall for file i686/mmx/libstdc++-libc6.2-2.so.3
open syscall for file i686/libstdc++-libc6.2-2.so.3
open syscall for file mmx/libstdc++-libc6.2-2.so.3
open syscall for file libstdc++-libc6.2-2.so.3
open syscall for file /oldhome/oroussel/lib/libstdc++-libc6.2-2.so.3
open syscall for file /etc/ld.so.cache
open syscall for file /usr/lib/libstdc++-libc6.2-2.so.3
open syscall for file tls/i686/mmx/libm.so.6
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open syscall for file i686/mmx/libm.so.6
open syscall for file i686/libm.so.6
open syscall for file mmx/libm.so.6
open syscall for file libm.so.6
open syscall for file /oldhome/oroussel/lib/libm.so.6
open syscall for file /lib/tls/libm.so.6
open syscall for file tls/i686/mmx/libpthread.so.0
open syscall for file tls/i686/libpthread.so.0
open syscall for file tls/mmx/libpthread.so.0
open syscall for file tls/libpthread.so.0
open syscall for file i686/mmx/libpthread.so.0
open syscall for file i686/libpthread.so.0
open syscall for file mmx/libpthread.so.0
open syscall for file libpthread.so.0
open syscall for file /oldhome/oroussel/lib/libpthread.so.0
open syscall for file /lib/tls/libpthread.so.0
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
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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 tls/i686/mmx/libgcc_s.so.1
open syscall for file tls/i686/libgcc_s.so.1
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open syscall for file tls/libgcc_s.so.1
open syscall for file i686/mmx/libgcc_s.so.1
open syscall for file i686/libgcc_s.so.1
open syscall for file mmx/libgcc_s.so.1
open syscall for file libgcc_s.so.1
open syscall for file /oldhome/oroussel/lib/libgcc_s.so.1
open syscall for file /lib/libgcc_s.so.1
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open syscall for file /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-rail507.opb

[startup+10.0043 s]
Raw data (loadavg): 0.94 0.98 0.98 2/56 26452
Raw data (/proc/26452/stat): 26452 (bsolo) R 26451 26452 5929 0 -1 0 141707 0 0 0 638 306 0 0 25 0 1 0 1853246793 583663616 141618 4294967295 134512640 134736556 3221224560 3221223344 134565053 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/26452/statm): 142496 141618 1116 68 0 142428 0
[pid=26452] vsize: 569984
Current children cumulated CPU time (s) 9.44
Current children cumulated vsize (Kb) 569984

[startup+20.0042 s]
Raw data (loadavg): 1.03 1.00 0.99 2/56 26452
Raw data (/proc/26452/stat): 26452 (bsolo) R 26451 26452 5929 0 -1 0 223757 0 0 0 1443 465 0 0 25 0 1 0 1853246793 919822336 222227 4294967295 134512640 134736556 3221224560 3221223104 134573621 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/26452/statm): 224566 222233 1116 68 0 224498 0
[pid=26452] vsize: 898264
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (Kb) 898264



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+21.013 s]
Raw data (loadavg): 1.03 1.00 0.99 1/56 26452
Raw data (/proc/26452/stat): 26452 (bsolo) T 26451 26452 5929 0 -1 0 229583 0 0 0 1517 488 0 0 25 0 1 0 1853246793 943738880 225896 4294967295 134512640 134736556 3221224560 3221222796 1077782939 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/26452/statm): 230405 225896 1116 68 0 230337 0
[pid=26452] vsize: 921620
Current children cumulated CPU time (s) 20.05
Current children cumulated vsize (Kb) 921620

Sending SIGTERM to -26452
Sleeping 2 seconds
Sending SIGKILL to -26452
One traced child (pid=26452) ended because it received signal 9 (SIGKILL)
All traced children have exited ! Game is over.

Child ended because it received signal 9 (SIGKILL)
Real time (s): 23.4414
CPU time (s): 20.4809
CPU user time (s): 15.1757
CPU system time (s): 5.30519
CPU usage (%): 87.3706
Max. virtual memory (cumulated for all children) (Kb): 921620

Verifier Data

ERROR: no interpretation found !