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-ship08l.opb
MD5SUM765ea624bde3931069939663462a01e5
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 128490
Biggest coefficient in the objective function 435455996723200
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 204823519821908064
Number of bits of the sum of numbers in the objective function 58
Biggest number in a constraint 435455996723200
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 204823519821908064
Number of bits of the biggest sum of numbers58
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark85.245
Number of variables128490
Total number of constraints712
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 constraints712
Minimum length of a constraint30
Maximum length of a constraint2550

Trace number 488

Launcher Data

LAUNCH ON wulflinc25 THE 2005-09-18 10:53:39 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=474 boxname=wulflinc25 idbench=474 idsolver=1 numberseed=0
MD5SUM SOLVER: 38f99674050b34630888bf623b924b59  /oldhome/oroussel/solvers/bsolo
MD5SUM BENCH:  765ea624bde3931069939663462a01e5  /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-ship08l.opb
REAL COMMAND:  bsolo /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-ship08l.opb
IDLAUNCH: 474
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.220
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		: 451.220
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:        931860 kB
Buffers:         34216 kB
Cached:          41116 kB
SwapCached:        896 kB
Active:          65296 kB
Inactive:        12688 kB
HighTotal:      131008 kB
HighFree:        88480 kB
LowTotal:       903652 kB
LowFree:        843380 kB
SwapTotal:     2097892 kB
SwapFree:      2096496 kB
Dirty:              36 kB
Writeback:           0 kB
Mapped:           5716 kB
Slab:            19172 kB
Committed_AS:    64168 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-18 10:55:15 (client local time) WITH STATUS 20 IN 95.7224 SECONDS
stats: 474 7 95.7224 20

Solver Data

c INFO: OSL Context initialized.
c BIG Int formula...
c Initial problem consists of 128490 variables and 1123 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 95.555 s

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/6102/stat): 6102 (bsolo) R 6101 6102 4419 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1840714374 438272 3 4294967295 134512640 134736556 3221224560 3221224560 1073744960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/6102/statm): 107 3 90 68 0 39 0
[pid=6102] 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
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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
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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/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
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open syscall for file tls/libpthread.so.0
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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
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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/wulflinc25/normalized-mps-v2-20-10-ship08l.opb

[startup+10.0031 s]
Raw data (loadavg): 0.91 0.96 0.91 2/56 6102
Raw data (/proc/6102/stat): 6102 (bsolo) R 6101 6102 4419 0 -1 0 48950 0 0 0 855 117 0 0 25 0 1 0 1840714374 202760192 48546 4294967295 134512640 134736556 3221224560 3221222840 1077378037 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6102/statm): 49502 48546 1116 68 0 49434 0
[pid=6102] vsize: 198008
Current children cumulated CPU time (s) 9.72
Current children cumulated vsize (Kb) 198008

[startup+20.0037 s]
Raw data (loadavg): 0.92 0.96 0.91 2/56 6102
Raw data (/proc/6102/stat): 6102 (bsolo) R 6101 6102 4419 0 -1 0 66267 0 0 0 1812 154 0 0 25 0 1 0 1840714374 270323712 64592 4294967295 134512640 134736556 3221224560 3221221260 1077196290 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6102/statm): 65997 64592 1116 68 0 65929 0
[pid=6102] vsize: 263988
Current children cumulated CPU time (s) 19.66
Current children cumulated vsize (Kb) 263988

[startup+30.0033 s]
Raw data (loadavg): 0.93 0.96 0.91 2/56 6102
Raw data (/proc/6102/stat): 6102 (bsolo) R 6101 6102 4419 0 -1 0 67882 0 0 0 2805 159 0 0 25 0 1 0 1840714374 277118976 66207 4294967295 134512640 134736556 3221224560 3221221260 1077198291 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6102/statm): 67656 66207 1116 68 0 67588 0
[pid=6102] vsize: 270624
Current children cumulated CPU time (s) 29.64
Current children cumulated vsize (Kb) 270624

[startup+40.003 s]
Raw data (loadavg): 0.94 0.96 0.91 2/56 6102
Raw data (/proc/6102/stat): 6102 (bsolo) R 6101 6102 4419 0 -1 0 68987 0 0 0 3800 163 0 0 25 0 1 0 1840714374 281759744 67312 4294967295 134512640 134736556 3221224560 3221223088 134572982 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6102/statm): 68789 67312 1116 68 0 68721 0
[pid=6102] vsize: 275156
Current children cumulated CPU time (s) 39.63
Current children cumulated vsize (Kb) 275156

[startup+50.0036 s]
Raw data (loadavg): 0.95 0.96 0.91 2/56 6102
Raw data (/proc/6102/stat): 6102 (bsolo) R 6101 6102 4419 0 -1 0 70042 0 0 0 4795 166 0 0 25 0 1 0 1840714374 286285824 68367 4294967295 134512640 134736556 3221224560 3221222808 1076999581 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6102/statm): 69894 68367 1116 68 0 69826 0
[pid=6102] vsize: 279576
Current children cumulated CPU time (s) 49.61
Current children cumulated vsize (Kb) 279576

[startup+60.0032 s]
Raw data (loadavg): 0.96 0.96 0.91 2/56 6102
Raw data (/proc/6102/stat): 6102 (bsolo) R 6101 6102 4419 0 -1 0 71009 0 0 0 5791 168 0 0 25 0 1 0 1840714374 290361344 69334 4294967295 134512640 134736556 3221224560 3221223072 134572994 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6102/statm): 70889 69334 1116 68 0 70821 0
[pid=6102] vsize: 283556
Current children cumulated CPU time (s) 59.59
Current children cumulated vsize (Kb) 283556

[startup+70.0038 s]
Raw data (loadavg): 0.96 0.96 0.91 2/56 6102
Raw data (/proc/6102/stat): 6102 (bsolo) R 6101 6102 4419 0 -1 0 71919 0 0 0 6788 171 0 0 25 0 1 0 1840714374 294178816 70244 4294967295 134512640 134736556 3221224560 3221223072 134572994 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6102/statm): 71821 70244 1116 68 0 71753 0
[pid=6102] vsize: 287284
Current children cumulated CPU time (s) 69.59
Current children cumulated vsize (Kb) 287284

[startup+80.0034 s]
Raw data (loadavg): 0.97 0.96 0.91 2/56 6102
Raw data (/proc/6102/stat): 6102 (bsolo) R 6101 6102 4419 0 -1 0 73100 0 0 0 7782 175 0 0 25 0 1 0 1840714374 299249664 71425 4294967295 134512640 134736556 3221224560 3221223136 134539940 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6102/statm): 73059 71425 1116 68 0 72991 0
[pid=6102] vsize: 292236
Current children cumulated CPU time (s) 79.57
Current children cumulated vsize (Kb) 292236

[startup+90.003 s]
Raw data (loadavg): 0.97 0.96 0.91 2/56 6102
Raw data (/proc/6102/stat): 6102 (bsolo) R 6101 6102 4419 0 -1 0 74109 0 0 0 8776 180 0 0 25 0 1 0 1840714374 303661056 72434 4294967295 134512640 134736556 3221224560 3221223136 134539929 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/6102/statm): 74136 72434 1116 68 0 74068 0
[pid=6102] vsize: 296544
Current children cumulated CPU time (s) 89.56
Current children cumulated vsize (Kb) 296544
One traced child (pid=6102) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 96.1919
CPU time (s): 95.7224
CPU user time (s): 93.4848
CPU system time (s): 2.23766
CPU usage (%): 99.5119
Max. virtual memory (cumulated for all children) (Kb): 296544

Verifier Data

ERROR: no interpretation found !