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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-ship04l.opb
MD5SUM2c68ccb202caa7ec35d2be2cf2e849d9
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 63540
Biggest coefficient in the objective function 1977295568896000
Number of bits for the biggest coefficient in the objective function 51
Sum of the numbers in the objective function 435915316225983825
Number of bits of the sum of numbers in the objective function 59
Biggest number in a constraint 1977295568896000
Number of bits of the biggest number in a constraint 51
Biggest sum of numbers in a constraint 435915316225983825
Number of bits of the biggest sum of numbers59
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark37.8572
Number of variables63540
Total number of constraints352
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 constraints352
Minimum length of a constraint30
Maximum length of a constraint2520

Trace number 2634

Launcher Data

LAUNCH ON wulflinc9 THE 2005-09-18 20:36:03 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2816 boxname=wulflinc9 idbench=472 idsolver=3 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  2c68ccb202caa7ec35d2be2cf2e849d9  /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-ship04l.opb
REAL COMMAND:  minisat+_script /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-ship04l.opb
IDLAUNCH: 2816
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.242
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	: 2
cpu MHz		: 451.242
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:        909584 kB
Buffers:         30724 kB
Cached:          67716 kB
SwapCached:       1044 kB
Active:          58804 kB
Inactive:        42380 kB
HighTotal:      131008 kB
HighFree:        59640 kB
LowTotal:       903652 kB
LowFree:        849944 kB
SwapTotal:     2097136 kB
SwapFree:      2095568 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5660 kB
Slab:            18092 kB
Committed_AS:    64132 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-18 20:36:50 (client local time) WITH STATUS 20 IN 46.113 SECONDS
stats: 2816 7 46.113 20

Solver Data

c Parsing PB file...
c PARSE ERROR! [line 2122] Integer overflow. Use BigNum-version.
c OK -- Running BigNum-version instead...
c Parsing PB file...
c Converting 548 PB-constraints to clauses...
c   -- Unit propagations: pppppp  -- Detecting intervals from adjacent constraints: ##############################################################################################################################################################################################################################################################
c   -- Clauses(.)/Splits(s): (none)
c ---[ 546]---> Adder-cost: 2502   maxlim: 7516225528   bits: 34/33
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              : 45.5981 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/9494/stat): 9494 (minisat+_script) R 9493 9494 30740 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1785954696 712704 3 4294967295 134512640 135087896 3221224496 3221224496 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9494/statm): 174 3 169 147 0 27 0
[pid=9494] 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=9495
New process pid=9496
New process pid=9497
execve syscall for /bin/sed executable
One traced child (pid=9496) 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=9497) exited with status: 0
One traced child (pid=9495) exited with status: 0
New process pid=9498
execve syscall for /oldhome/oroussel/solvers/minisat+_64-bit_static executable
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-ship04l.opb
One traced child (pid=9498) exited with status: 5
open syscall for file /oldhome/oroussel/solvers/
New process pid=9499
execve syscall for /oldhome/oroussel/solvers/minisat+_bignum_static executable
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-ship04l.opb

[startup+10.0035 s]
Raw data (loadavg): 0.94 0.97 0.91 2/57 9499
Raw data (/proc/9494/stat): 9494 (minisat+_script) S 9493 9494 30740 0 -1 0 314 332 0 0 0 1 0 1 22 0 1 0 1785954696 2179072 234 4294967295 134512640 135087896 3221224496 3221223384 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (/proc/9494/statm): 532 234 485 147 0 385 0
[pid=9494] vsize: 2128
Raw data (/proc/9499/stat): 9499 (minisat+_bignum) R 9494 9494 30740 0 -1 0 4455 0 0 0 948 21 0 0 25 0 1 0 1785954703 17616896 4114 4294967295 134512640 135167914 3221224448 3221222784 134694392 0 0 5 16386 0 0 0 17 1 0 0
Raw data (/proc/9499/statm): 4301 4114 162 162 0 4139 0
[pid=9499] vsize: 17204
Current children cumulated CPU time (s) 9.71
Current children cumulated vsize (Kb) 19332

[startup+20.0043 s]
Raw data (loadavg): 0.95 0.97 0.91 2/57 9499
Raw data (/proc/9494/stat): 9494 (minisat+_script) S 9493 9494 30740 0 -1 0 314 332 0 0 0 1 0 1 22 0 1 0 1785954696 2179072 234 4294967295 134512640 135087896 3221224496 3221223384 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (/proc/9494/statm): 532 234 485 147 0 385 0
[pid=9494] vsize: 2128
Raw data (/proc/9499/stat): 9499 (minisat+_bignum) R 9494 9494 30740 0 -1 0 8019 0 0 0 1904 43 0 0 25 0 1 0 1785954703 27459584 6528 4294967295 134512640 135167914 3221224448 3221223204 134697170 0 0 5 16386 0 0 0 17 1 0 0
Raw data (/proc/9499/statm): 6704 6528 162 162 0 6542 0
[pid=9499] vsize: 26816
Current children cumulated CPU time (s) 19.49
Current children cumulated vsize (Kb) 28944

[startup+30.005 s]
Raw data (loadavg): 0.95 0.97 0.91 2/57 9499
Raw data (/proc/9494/stat): 9494 (minisat+_script) S 9493 9494 30740 0 -1 0 314 332 0 0 0 1 0 1 22 0 1 0 1785954696 2179072 234 4294967295 134512640 135087896 3221224496 3221223384 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (/proc/9494/statm): 532 234 485 147 0 385 0
[pid=9494] vsize: 2128
Raw data (/proc/9499/stat): 9499 (minisat+_bignum) R 9494 9494 30740 0 -1 0 8020 0 0 0 2904 43 0 0 25 0 1 0 1785954703 27459584 6529 4294967295 134512640 135167914 3221224448 3221223204 134697187 0 0 5 16386 0 0 0 17 1 0 0
Raw data (/proc/9499/statm): 6704 6529 162 162 0 6542 0
[pid=9499] vsize: 26816
Current children cumulated CPU time (s) 29.49
Current children cumulated vsize (Kb) 28944

[startup+40.0058 s]
Raw data (loadavg): 0.96 0.97 0.91 2/57 9499
Raw data (/proc/9494/stat): 9494 (minisat+_script) S 9493 9494 30740 0 -1 0 314 332 0 0 0 1 0 1 22 0 1 0 1785954696 2179072 234 4294967295 134512640 135087896 3221224496 3221223384 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (/proc/9494/statm): 532 234 485 147 0 385 0
[pid=9494] vsize: 2128
Raw data (/proc/9499/stat): 9499 (minisat+_bignum) R 9494 9494 30740 0 -1 0 8020 0 0 0 3904 43 0 0 25 0 1 0 1785954703 27459584 6529 4294967295 134512640 135167914 3221224448 3221223216 134691307 0 0 5 16386 0 0 0 17 0 0 0
Raw data (/proc/9499/statm): 6704 6529 162 162 0 6542 0
[pid=9499] vsize: 26816
Current children cumulated CPU time (s) 39.49
Current children cumulated vsize (Kb) 28944
One traced child (pid=9499) exited with status: 20
One traced child (pid=9494) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 46.6064
CPU time (s): 46.113
CPU user time (s): 45.6201
CPU system time (s): 0.492925
CPU usage (%): 98.9413
Max. virtual memory (cumulated for all children) (Kb): 28944

Verifier Data

ERROR: no interpretation found !