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/miplib2003/normalized-mps-v2-20-10-momentum1.opb
MD5SUM611e05ec291e603bb8a780ac778ac9aa
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 31027
Biggest coefficient in the objective function 16384000000
Number of bits for the biggest coefficient in the objective function 34
Sum of the numbers in the objective function 1372391683575
Number of bits of the sum of numbers in the objective function 41
Biggest number in a constraint 536870912000000000000000
Number of bits of the biggest number in a constraint 79
Biggest sum of numbers in a constraint 1073792773951002037452800
Number of bits of the biggest sum of numbers80
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark30.6013
Number of variables41495
Total number of constraints47575
Number of constraints which are clauses24365
Number of constraints which are cardinality constraints (but not clauses)3166
Number of constraints which are nor clauses,nor cardinality constraints20044
Minimum length of a constraint1
Maximum length of a constraint840

Trace number 3893

Launcher Data

LAUNCH ON wulflinc18 THE 2005-09-19 03:46:30 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2923 boxname=wulflinc18 idbench=579 idsolver=3 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  611e05ec291e603bb8a780ac778ac9aa  /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-momentum1.opb
REAL COMMAND:  minisat+_script /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-momentum1.opb
IDLAUNCH: 2923
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.177
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	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.177
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:        874836 kB
Buffers:         35652 kB
Cached:          89644 kB
SwapCached:        844 kB
Active:          62140 kB
Inactive:        65764 kB
HighTotal:      131008 kB
HighFree:        38164 kB
LowTotal:       903652 kB
LowFree:        836672 kB
SwapTotal:     2097892 kB
SwapFree:      2096548 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5764 kB
Slab:            26108 kB
Committed_AS:    64184 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-19 03:47:04 (client local time) WITH STATUS 20 IN 32.661 SECONDS
stats: 2923 7 32.661 20

Solver Data

c Parsing PB file...
c PARSE ERROR! [line 26069] Integer overflow. Use BigNum-version.
c OK -- Running BigNum-version instead...
c Parsing PB file...
s UNSATISFIABLE
c _______________________________________________________________________________
c 
c restarts              : 0
c conflicts             : 0              (0 /sec)
c decisions             : 0              (0 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 31.0953 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/16673/stat): 16673 (minisat+_script) R 16672 16673 31027 0 -1 0 19 0 0 0 0 0 0 0 22 0 1 0 1846731459 712704 3 4294967295 134512640 135087896 3221224496 3221224496 1073744960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/16673/statm): 174 3 169 147 0 27 0
[pid=16673] 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=16674
New process pid=16675
New process pid=16676
execve syscall for /bin/sed executable
One traced child (pid=16675) 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=16676) exited with status: 0
One traced child (pid=16674) exited with status: 0
New process pid=16677
execve syscall for /oldhome/oroussel/solvers/minisat+_64-bit_static executable
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-momentum1.opb
One traced child (pid=16677) exited with status: 5
open syscall for file /oldhome/oroussel/solvers/
New process pid=16678
execve syscall for /oldhome/oroussel/solvers/minisat+_bignum_static executable
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-momentum1.opb

[startup+10.0034 s]
Raw data (loadavg): 0.93 0.96 0.93 2/57 16678
Raw data (/proc/16673/stat): 16673 (minisat+_script) S 16672 16673 31027 0 -1 0 314 2878 0 0 0 1 77 15 17 0 1 0 1846731459 2179072 234 4294967295 134512640 135087896 3221224496 3221223384 1074634510 0 65536 5 65538 3222414538 0 0 17 0 0 0
Raw data (/proc/16673/statm): 532 234 485 147 0 385 0
[pid=16673] vsize: 2128
Raw data (/proc/16678/stat): 16678 (minisat+_bignum) R 16673 16673 31027 0 -1 0 3574 0 0 0 842 22 0 0 25 0 1 0 1846731569 16883712 3518 4294967295 134512640 135167914 3221224448 3221222640 134849153 0 0 5 16386 0 0 0 17 0 0 0
Raw data (/proc/16678/statm): 4122 3518 162 162 0 3960 0
[pid=16678] vsize: 16488
Current children cumulated CPU time (s) 9.57
Current children cumulated vsize (Kb) 18616

[startup+20.0043 s]
Raw data (loadavg): 0.94 0.96 0.93 2/57 16678
Raw data (/proc/16673/stat): 16673 (minisat+_script) S 16672 16673 31027 0 -1 0 314 2878 0 0 0 1 77 15 17 0 1 0 1846731459 2179072 234 4294967295 134512640 135087896 3221224496 3221223384 1074634510 0 65536 5 65538 3222414538 0 0 17 0 0 0
Raw data (/proc/16673/statm): 532 234 485 147 0 385 0
[pid=16673] vsize: 2128
Raw data (/proc/16678/stat): 16678 (minisat+_bignum) R 16673 16673 31027 0 -1 0 5743 0 0 0 1809 36 0 0 25 0 1 0 1846731569 25620480 5687 4294967295 134512640 135167914 3221224448 3221223260 134722512 0 0 5 16386 0 0 0 17 0 0 0
Raw data (/proc/16678/statm): 6255 5687 162 162 0 6093 0
[pid=16678] vsize: 25020
Current children cumulated CPU time (s) 19.38
Current children cumulated vsize (Kb) 27148

[startup+30.0052 s]
Raw data (loadavg): 0.95 0.96 0.93 2/57 16678
Raw data (/proc/16673/stat): 16673 (minisat+_script) S 16672 16673 31027 0 -1 0 314 2878 0 0 0 1 77 15 17 0 1 0 1846731459 2179072 234 4294967295 134512640 135087896 3221224496 3221223384 1074634510 0 65536 5 65538 3222414538 0 0 17 0 0 0
Raw data (/proc/16673/statm): 532 234 485 147 0 385 0
[pid=16673] vsize: 2128
Raw data (/proc/16678/stat): 16678 (minisat+_bignum) R 16673 16673 31027 0 -1 0 7900 0 0 0 2770 53 0 0 25 0 1 0 1846731569 34283520 7844 4294967295 134512640 135167914 3221224448 3221222744 134846924 0 0 5 16386 0 0 0 17 0 0 0
Raw data (/proc/16678/statm): 8370 7844 162 162 0 8208 0
[pid=16678] vsize: 33480
Current children cumulated CPU time (s) 29.16
Current children cumulated vsize (Kb) 35608
One traced child (pid=16678) exited with status: 20
One traced child (pid=16673) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 33.5348
CPU time (s): 32.661
CPU user time (s): 31.8822
CPU system time (s): 0.778881
CPU usage (%): 97.3943
Max. virtual memory (cumulated for all children) (Kb): 35608

Verifier Data

ERROR: no interpretation found !