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).
  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

Namenormalized-opb/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos9.opb
MD5SUM44b9f0f81a9b533b0f9e0fd187bafc3d
Bench Categoryoptimization, medium integers (OPTMEDINT)
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 198658
Biggest coefficient in the objective function 1024
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 38727219
Number of bits of the sum of numbers in the objective function 26
Biggest number in a constraint 30720
Number of bits of the biggest number in a constraint 15
Biggest sum of numbers in a constraint 38727219
Number of bits of the biggest sum of numbers26
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark8.39472
Number of variables874498
Total number of constraints113008
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)2186
Number of constraints which are nor clauses,nor cardinality constraints110822
Minimum length of a constraint1
Maximum length of a constraint14080

Trace number 20429 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-04-21 21:16:51 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=14759 boxname=wulflinc6 idbench=1136 idsolver=4 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  44b9f0f81a9b533b0f9e0fd187bafc3d  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-neos9.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-neos9.opb
IDLAUNCH: 14759
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        119404 kB
Buffers:         29060 kB
Cached:         864284 kB
SwapCached:        516 kB
Active:         157144 kB
Inactive:       738196 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        119152 kB
SwapTotal:     2097136 kB
SwapFree:      2095720 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5112 kB
Slab:            14156 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-21 21:18:58 (client local time) WITH STATUS 0 IN 125.38 SECONDS
stats: 14759 7 125.38 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Decisions:	0
c Implications:	0
c RUNTIME:	121.083s
s UNKNOWN
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Raw data (loadavg): 0.99 0.97 0.91 2/54 26868
Raw data (stat): 26868 (runsolver) R 26867 29653 29652 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 490030143 1052672 99 4294967295 134512640 135381576 3221224528 3221219776 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0002 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 26868
Raw data (stat): 26868 (galena) R 26867 29653 29652 0 -1 0 4890 0 0 0 985 14 0 0 25 0 1 0 490030143 15228928 3445 4294967295 134512640 135412752 3221224624 3221222352 134929927 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3718 3445 241 241 0 3477 0
vsize: 14872
[startup+20.0004 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 26868
Raw data (stat): 26868 (galena) R 26867 29653 29652 0 -1 0 8865 0 0 0 1973 26 0 0 25 0 1 0 490030143 30171136 6880 4294967295 134512640 135412752 3221224624 3221222416 134617276 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 7366 6880 241 241 0 7125 0
vsize: 29464
[startup+30.0001 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 26868
Raw data (stat): 26868 (galena) R 26867 29653 29652 0 -1 0 13624 0 0 0 2960 39 0 0 25 0 1 0 490030143 47726592 10741 4294967295 134512640 135412752 3221224624 3221222416 134617276 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 11652 10741 241 241 0 11411 0
vsize: 46608
[startup+40.0006 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 26868
Raw data (stat): 26868 (galena) R 26867 29653 29652 0 -1 0 20140 0 0 0 3947 53 0 0 25 0 1 0 490030143 71643136 16139 4294967295 134512640 135412752 3221224624 3221222320 134849158 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 17491 16139 241 241 0 17250 0
vsize: 69964
[startup+50.0008 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 26868
Raw data (stat): 26868 (galena) R 26867 29653 29652 0 -1 0 22497 0 0 0 4939 61 0 0 25 0 1 0 490030143 78041088 17684 4294967295 134512640 135412752 3221224624 3221222400 134930688 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 19053 17684 241 241 0 18812 0
vsize: 76212
[startup+60.0005 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 26868
Raw data (stat): 26868 (galena) R 26867 29653 29652 0 -1 0 24236 0 0 0 5932 68 0 0 25 0 1 0 490030143 82903040 18919 4294967295 134512640 135412752 3221224624 3221222288 134835678 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 20240 18919 241 241 0 19999 0
vsize: 80960
[startup+70 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 26868
Raw data (stat): 26868 (galena) R 26867 29653 29652 0 -1 0 25104 0 0 0 6927 74 0 0 25 0 1 0 490030143 86282240 19787 4294967295 134512640 135412752 3221224624 3221222296 134840881 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 21065 19787 241 241 0 20824 0
vsize: 84260
[startup+80.0002 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 26868
Raw data (stat): 26868 (galena) R 26867 29653 29652 0 -1 0 26640 0 0 0 7919 81 0 0 25 0 1 0 490030143 92499968 21323 4294967295 134512640 135412752 3221224624 3221222252 134840846 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 22583 21323 241 241 0 22342 0
vsize: 90332
[startup+89.9999 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 26868
Raw data (stat): 26868 (galena) R 26867 29653 29652 0 -1 0 28180 0 0 0 8913 88 0 0 25 0 1 0 490030143 98582528 22863 4294967295 134512640 135412752 3221224624 3221222320 134667777 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 24068 22863 241 241 0 23827 0
vsize: 96272
[startup+99.9996 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 26868
Raw data (stat): 26868 (galena) R 26867 29653 29652 0 -1 0 29575 0 0 0 9907 94 0 0 25 0 1 0 490030143 104214528 24258 4294967295 134512640 135412752 3221224624 3221222320 134667893 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 25443 24258 241 241 0 25202 0
vsize: 101772
[startup+110 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 26868
Raw data (stat): 26868 (galena) R 26867 29653 29652 0 -1 0 34596 0 0 0 10894 107 0 0 25 0 1 0 490030143 125992960 29137 4294967295 134512640 135412752 3221224624 3221222720 134621668 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 30760 29137 241 241 0 30519 0
vsize: 123040
[startup+120 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 26868
Raw data (stat): 26868 (galena) R 26867 29653 29652 0 -1 0 74483 0 0 0 11799 203 0 0 25 0 1 0 490030143 307437568 68635 4294967295 134512640 135412752 3221224624 3221222784 134530947 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 75058 68635 241 241 0 74817 0
vsize: 300232
[startup+125.356 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 26868
Raw data (stat): 26868 (galena) R 26867 29653 29652 0 -1 0 74483 0 0 0 11799 203 0 0 25 0 1 0 490030143 307437568 68635 4294967295 134512640 135412752 3221224624 3221222784 134530947 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 75058 68635 241 241 0 74817 0
vsize: 0

Child status: 0
Real time (s): 125.355
CPU time (s): 125.38
CPU user time (s): 123.049
CPU system time (s): 2.33065
CPU usage (%): 100.02
Max. virtual memory (Kb): 300232
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####