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-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-d2q06c.opb
MD5SUM8e2638ad794b39b950927d7f3192369b
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 59780
Biggest coefficient in the objective function 35431356301312
Number of bits for the biggest coefficient in the objective function 46
Sum of the numbers in the objective function 17025894421914675
Number of bits of the sum of numbers in the objective function 54
Biggest number in a constraint 1217763488038912
Number of bits of the biggest number in a constraint 51
Biggest sum of numbers in a constraint 17025894421914675
Number of bits of the biggest sum of numbers54
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark48.9606
Number of variables103340
Total number of constraints2171
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 constraints2171
Minimum length of a constraint20
Maximum length of a constraint2180

Trace number 5950

Launcher Data

LAUNCH ON wulflinc26 THE 2005-09-20 02:34:25 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=3148 boxname=wulflinc26 idbench=804 idsolver=3 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8e2638ad794b39b950927d7f3192369b  /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-13-7-d2q06c.opb
REAL COMMAND:  minisat+_script /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-13-7-d2q06c.opb
IDLAUNCH: 3148
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.061
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		: 451.061
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        878068 kB
Buffers:         15192 kB
Cached:         112392 kB
SwapCached:        868 kB
Active:          52632 kB
Inactive:        77596 kB
HighTotal:      131008 kB
HighFree:        16268 kB
LowTotal:       903652 kB
LowFree:        861800 kB
SwapTotal:     2097892 kB
SwapFree:      2096540 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5704 kB
Slab:            20540 kB
Committed_AS:    64132 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-20 02:35:33 (client local time) WITH STATUS 20 IN 66.3649 SECONDS
stats: 3148 7 66.3649 20

Solver Data

c Parsing PB file...
c PARSE ERROR! [line 5354] Integer overflow. Use BigNum-version.
c OK -- Running BigNum-version instead...
c Parsing PB file...
c Converting 3668 PB-constraints to clauses...
c   -- Unit propagations: pppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp  -- Detecting intervals from adjacent constraints: ########################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################
c   -- Clauses(.)/Splits(s): s
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              : 64.4172 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/16256/stat): 16256 (minisat+_script) R 16255 16256 16528 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1854984737 712704 3 4294967295 134512640 135087896 3221224496 3221224496 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/16256/statm): 174 3 169 147 0 27 0
[pid=16256] 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=16257
New process pid=16258
New process pid=16259
execve syscall for /bin/sed executable
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
One traced child (pid=16258) exited with status: 0
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=16259) exited with status: 0
One traced child (pid=16257) exited with status: 0
New process pid=16260
execve syscall for /oldhome/oroussel/solvers/minisat+_64-bit_static executable
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-13-7-d2q06c.opb
One traced child (pid=16260) exited with status: 5
open syscall for file /oldhome/oroussel/solvers/
New process pid=16261
execve syscall for /oldhome/oroussel/solvers/minisat+_bignum_static executable
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-13-7-d2q06c.opb

[startup+10.0034 s]
Raw data (loadavg): 1.02 0.99 0.99 2/57 16261
Raw data (/proc/16256/stat): 16256 (minisat+_script) S 16255 16256 16528 0 -1 0 314 3155 0 0 0 1 64 14 18 0 1 0 1854984737 2179072 234 4294967295 134512640 135087896 3221224496 3221223384 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (/proc/16256/statm): 532 234 485 147 0 385 0
[pid=16256] vsize: 2128
Raw data (/proc/16261/stat): 16261 (minisat+_bignum) R 16256 16256 16528 0 -1 0 4381 0 0 0 856 25 0 0 25 0 1 0 1854984831 22228992 4183 4294967295 134512640 135167914 3221224448 3221222032 134849143 0 0 5 16386 0 0 0 17 1 0 0
Raw data (/proc/16261/statm): 5427 4183 162 162 0 5265 0
[pid=16261] vsize: 21708
Current children cumulated CPU time (s) 9.6
Current children cumulated vsize (Kb) 23836

[startup+20.0041 s]
Raw data (loadavg): 1.02 0.99 0.99 2/57 16261
Raw data (/proc/16256/stat): 16256 (minisat+_script) S 16255 16256 16528 0 -1 0 314 3155 0 0 0 1 64 14 18 0 1 0 1854984737 2179072 234 4294967295 134512640 135087896 3221224496 3221223384 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (/proc/16256/statm): 532 234 485 147 0 385 0
[pid=16256] vsize: 2128
Raw data (/proc/16261/stat): 16261 (minisat+_bignum) R 16256 16256 16528 0 -1 0 6929 0 0 0 1816 43 0 0 25 0 1 0 1854984831 32088064 6731 4294967295 134512640 135167914 3221224448 3221222476 134722227 0 0 5 16386 0 0 0 17 1 0 0
Raw data (/proc/16261/statm): 7834 6731 162 162 0 7672 0
[pid=16261] vsize: 31336
Current children cumulated CPU time (s) 19.38
Current children cumulated vsize (Kb) 33464

[startup+30.0048 s]
Raw data (loadavg): 1.02 0.99 0.99 2/57 16261
Raw data (/proc/16256/stat): 16256 (minisat+_script) S 16255 16256 16528 0 -1 0 314 3155 0 0 0 1 64 14 18 0 1 0 1854984737 2179072 234 4294967295 134512640 135087896 3221224496 3221223384 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (/proc/16256/statm): 532 234 485 147 0 385 0
[pid=16256] vsize: 2128
Raw data (/proc/16261/stat): 16261 (minisat+_bignum) R 16256 16256 16528 0 -1 0 9793 0 0 0 2779 60 0 0 25 0 1 0 1854984831 42532864 9430 4294967295 134512640 135167914 3221224448 3221222768 134844718 0 0 5 16386 0 0 0 17 0 0 0
Raw data (/proc/16261/statm): 10384 9430 162 162 0 10222 0
[pid=16261] vsize: 41536
Current children cumulated CPU time (s) 29.18
Current children cumulated vsize (Kb) 43664

[startup+40.0055 s]
Raw data (loadavg): 1.01 0.99 0.99 2/57 16261
Raw data (/proc/16256/stat): 16256 (minisat+_script) S 16255 16256 16528 0 -1 0 314 3155 0 0 0 1 64 14 18 0 1 0 1854984737 2179072 234 4294967295 134512640 135087896 3221224496 3221223384 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (/proc/16256/statm): 532 234 485 147 0 385 0
[pid=16256] vsize: 2128
Raw data (/proc/16261/stat): 16261 (minisat+_bignum) R 16256 16256 16528 0 -1 0 12372 0 0 0 3743 77 0 0 25 0 1 0 1854984831 52350976 11975 4294967295 134512640 135167914 3221224448 3221220992 134845901 0 0 5 16386 0 0 0 17 1 0 0
Raw data (/proc/16261/statm): 12781 11975 162 162 0 12619 0
[pid=16261] vsize: 51124
Current children cumulated CPU time (s) 38.99
Current children cumulated vsize (Kb) 53252

[startup+50.0062 s]
Raw data (loadavg): 1.01 0.99 0.99 2/57 16261
Raw data (/proc/16256/stat): 16256 (minisat+_script) S 16255 16256 16528 0 -1 0 314 3155 0 0 0 1 64 14 18 0 1 0 1854984737 2179072 234 4294967295 134512640 135087896 3221224496 3221223384 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (/proc/16256/statm): 532 234 485 147 0 385 0
[pid=16256] vsize: 2128
Raw data (/proc/16261/stat): 16261 (minisat+_bignum) R 16256 16256 16528 0 -1 0 14795 0 0 0 4712 90 0 0 25 0 1 0 1854984831 61784064 14398 4294967295 134512640 135167914 3221224448 3221221272 134693690 0 0 5 16386 0 0 0 17 1 0 0
Raw data (/proc/16261/statm): 15084 14398 162 162 0 14922 0
[pid=16261] vsize: 60336
Current children cumulated CPU time (s) 48.81
Current children cumulated vsize (Kb) 62464

[startup+60.0069 s]
Raw data (loadavg): 1.01 0.99 0.99 2/57 16261
Raw data (/proc/16256/stat): 16256 (minisat+_script) S 16255 16256 16528 0 -1 0 314 3155 0 0 0 1 64 14 18 0 1 0 1854984737 2179072 234 4294967295 134512640 135087896 3221224496 3221223384 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (/proc/16256/statm): 532 234 485 147 0 385 0
[pid=16256] vsize: 2128
Raw data (/proc/16261/stat): 16261 (minisat+_bignum) R 16256 16256 16528 0 -1 0 18810 0 0 0 5667 110 0 0 25 0 1 0 1854984831 78217216 18413 4294967295 134512640 135167914 3221224448 3221223212 134697191 0 0 5 16386 0 0 0 17 1 0 0
Raw data (/proc/16261/statm): 19096 18413 162 162 0 18934 0
[pid=16261] vsize: 76384
Current children cumulated CPU time (s) 58.56
Current children cumulated vsize (Kb) 78512
One traced child (pid=16261) exited with status: 20
One traced child (pid=16256) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 67.8034
CPU time (s): 66.3649
CPU user time (s): 65.0661
CPU system time (s): 1.2988
CPU usage (%): 97.8785
Max. virtual memory (cumulated for all children) (Kb): 78512

Verifier Data

ERROR: no interpretation found !