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/milp/normalized-mps-v2-20-10-neos19.opb
MD5SUM6eb30c4e664b9c0e8d94f2aea74a91a3
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 1611
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 1611
Number of bits of the sum of numbers in the objective function 11
Biggest number in a constraint 24576
Number of bits of the biggest number in a constraint 15
Biggest sum of numbers in a constraint 98256
Number of bits of the biggest sum of numbers17
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables1041679
Total number of constraints137871
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)10091
Number of constraints which are nor clauses,nor cardinality constraints127780
Minimum length of a constraint1
Maximum length of a constraint275

Trace number 5476

Launcher Data

LAUNCH ON wulflinc22 THE 2005-09-20 01:15:51 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=1897 boxname=wulflinc22 idbench=725 idsolver=2 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  6eb30c4e664b9c0e8d94f2aea74a91a3  /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-neos19.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-neos19.opb
IDLAUNCH: 1897
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.031
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		: 451.031
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:        851612 kB
Buffers:          3684 kB
Cached:         151832 kB
SwapCached:        476 kB
Active:          75732 kB
Inactive:        82252 kB
HighTotal:      131008 kB
HighFree:         3752 kB
LowTotal:       903652 kB
LowFree:        847860 kB
SwapTotal:     2097892 kB
SwapFree:      2096756 kB
Dirty:               4 kB
Writeback:           0 kB
Mapped:           5676 kB
Slab:            19136 kB
Committed_AS:    64168 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-20 01:17:49 (client local time) WITH STATUS 0 IN 116.208 SECONDS
stats: 1897 7 116.208 0

Solver Data

c Decisions:	0
c Implications:	18205
c RUNTIME:	111.412s
s UNKNOWN

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/12058/stat): 12058 (galena) R 12057 12058 21452 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 1854503136 1015808 2 4294967295 134512640 135412752 3221224560 3221224560 134512896 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/12058/statm): 248 2 241 241 0 7 0
[pid=12058] vsize: 992
open syscall for file /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-neos19.opb

[startup+10.003 s]
Raw data (loadavg): 0.89 0.90 0.95 2/56 12058
Raw data (/proc/12058/stat): 12058 (galena) R 12057 12058 21452 0 -1 0 3728 0 0 0 984 12 0 0 25 0 1 0 1854503136 14647296 3247 4294967295 134512640 135412752 3221224560 3221222172 134852912 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/12058/statm): 3576 3247 241 241 0 3335 0
[pid=12058] vsize: 14304
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 14304

[startup+20.0037 s]
Raw data (loadavg): 0.91 0.90 0.95 2/56 12058
Raw data (/proc/12058/stat): 12058 (galena) R 12057 12058 21452 0 -1 0 9138 0 0 0 1967 28 0 0 25 0 1 0 1854503136 33300480 7661 4294967295 134512640 135412752 3221224560 3221222304 134618963 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/12058/statm): 8130 7661 241 241 0 7889 0
[pid=12058] vsize: 32520
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 32520

[startup+30.0034 s]
Raw data (loadavg): 0.92 0.91 0.95 2/56 12058
Raw data (/proc/12058/stat): 12058 (galena) R 12057 12058 21452 0 -1 0 14649 0 0 0 2951 41 0 0 25 0 1 0 1854503136 55209984 12338 4294967295 134512640 135412752 3221224560 3221221984 134833551 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/12058/statm): 13479 12338 241 241 0 13238 0
[pid=12058] vsize: 53916
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 53916

[startup+40.0041 s]
Raw data (loadavg): 0.93 0.91 0.95 2/56 12058
Raw data (/proc/12058/stat): 12058 (galena) R 12057 12058 21452 0 -1 0 19387 0 0 0 3933 57 0 0 25 0 1 0 1854503136 70426624 16307 4294967295 134512640 135412752 3221224560 3221222236 134672294 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/12058/statm): 17194 16307 241 241 0 16953 0
[pid=12058] vsize: 68776
Current children cumulated CPU time (s) 39.9
Current children cumulated vsize (Kb) 68776

[startup+50.0039 s]
Raw data (loadavg): 0.94 0.91 0.95 2/56 12058
Raw data (/proc/12058/stat): 12058 (galena) R 12057 12058 21452 0 -1 0 21790 0 0 0 4919 68 0 0 25 0 1 0 1854503136 79134720 18710 4294967295 134512640 135412752 3221224560 3221222080 134841658 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/12058/statm): 19320 18710 241 241 0 19079 0
[pid=12058] vsize: 77280
Current children cumulated CPU time (s) 49.87
Current children cumulated vsize (Kb) 77280

[startup+60.0046 s]
Raw data (loadavg): 0.95 0.91 0.95 2/56 12058
Raw data (/proc/12058/stat): 12058 (galena) R 12057 12058 21452 0 -1 0 23187 0 0 0 5908 76 0 0 25 0 1 0 1854503136 84811776 20107 4294967295 134512640 135412752 3221224560 3221222240 134846331 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/12058/statm): 20706 20107 241 241 0 20465 0
[pid=12058] vsize: 82824
Current children cumulated CPU time (s) 59.84
Current children cumulated vsize (Kb) 82824

[startup+70.0043 s]
Raw data (loadavg): 0.96 0.92 0.95 2/56 12058
Raw data (/proc/12058/stat): 12058 (galena) R 12057 12058 21452 0 -1 0 27764 0 0 0 6890 90 0 0 25 0 1 0 1854503136 103297024 24043 4294967295 134512640 135412752 3221224560 3221221952 134952965 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/12058/statm): 25219 24043 241 241 0 24978 0
[pid=12058] vsize: 100876
Current children cumulated CPU time (s) 69.8
Current children cumulated vsize (Kb) 100876

[startup+80.004 s]
Raw data (loadavg): 0.96 0.92 0.95 2/56 12058
Raw data (/proc/12058/stat): 12058 (galena) R 12057 12058 21452 0 -1 0 28576 0 0 0 7879 98 0 0 25 0 1 0 1854503136 106405888 24855 4294967295 134512640 135412752 3221224560 3221221884 134703984 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/12058/statm): 25978 24855 241 241 0 25737 0
[pid=12058] vsize: 103912
Current children cumulated CPU time (s) 79.77
Current children cumulated vsize (Kb) 103912

[startup+90.0047 s]
Raw data (loadavg): 0.97 0.92 0.95 2/56 12058
Raw data (/proc/12058/stat): 12058 (galena) R 12057 12058 21452 0 -1 0 30002 0 0 0 8868 105 0 0 25 0 1 0 1854503136 111947776 26281 4294967295 134512640 135412752 3221224560 3221222256 134672326 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/12058/statm): 27331 26281 241 241 0 27090 0
[pid=12058] vsize: 109324
Current children cumulated CPU time (s) 89.73
Current children cumulated vsize (Kb) 109324

[startup+100.005 s]
Raw data (loadavg): 0.97 0.92 0.95 2/56 12058
Raw data (/proc/12058/stat): 12058 (galena) R 12057 12058 21452 0 -1 0 31440 0 0 0 9858 112 0 0 25 0 1 0 1854503136 117624832 27719 4294967295 134512640 135412752 3221224560 3221222256 134667911 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/12058/statm): 28717 27719 241 241 0 28476 0
[pid=12058] vsize: 114868
Current children cumulated CPU time (s) 99.7
Current children cumulated vsize (Kb) 114868

[startup+110.006 s]
Raw data (loadavg): 0.98 0.92 0.95 2/56 12058
Raw data (/proc/12058/stat): 12058 (galena) R 12057 12058 21452 0 -1 0 76347 0 0 0 10754 214 0 0 25 0 1 0 1854503136 329236480 72415 4294967295 134512640 135412752 3221224560 3221222652 134832640 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/12058/statm): 80380 72415 241 241 0 80139 0
[pid=12058] vsize: 321520
Current children cumulated CPU time (s) 109.68
Current children cumulated vsize (Kb) 321520
One traced child (pid=12058) exited with status: 0
All traced children have exited ! Game is over.

Child status: 0
Real time (s): 116.533
CPU time (s): 116.208
CPU user time (s): 113.744
CPU system time (s): 2.46462
CPU usage (%): 99.7213
Max. virtual memory (cumulated for all children) (Kb): 321520

Verifier Data

ERROR: no interpretation found !