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-v2-13-7/MIPLIB/miplib2003/normalized-mps-v2-13-7-momentum1.opb
MD5SUMacfea3028edc6266e2157b2d64da7531
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 23392
Biggest coefficient in the objective function 2048000000
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 171547966775
Number of bits of the sum of numbers in the objective function 38
Biggest number in a constraint 524288000000000000000
Number of bits of the biggest number in a constraint 69
Biggest sum of numbers in a constraint 1054942508296556904448
Number of bits of the biggest sum of numbers70
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.276957
Number of variables31067
Total number of constraints47575
Number of constraints which are clauses24365
Number of constraints which are cardinality constraints (but not clauses)3166
Number of constraints which are nor clauses,nor cardinality constraints20044
Minimum length of a constraint1
Maximum length of a constraint668

Trace number 25764 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-22 08:39:47 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=17735 boxname=wulflinc31 idbench=1365 idsolver=3 numberseed=0
MD5SUM SOLVER: 03a6a792daea978e4202f78851741568  /oldhome/oroussel/solvers/bsolo_mis
MD5SUM BENCH:  acfea3028edc6266e2157b2d64da7531  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-momentum1.opb
REAL COMMAND:  bsolo_mis /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-momentum1.opb
IDLAUNCH: 17735
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
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		: 451.153
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:        669200 kB
Buffers:           460 kB
Cached:         344272 kB
SwapCached:        844 kB
Active:         171576 kB
Inactive:       175192 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        668948 kB
SwapTotal:     2097892 kB
SwapFree:      2095964 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5096 kB
Slab:            13072 kB
Committed_AS:    63840 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-22 08:41:20 (client local time) WITH STATUS 0 IN 91.808 SECONDS
stats: 17735 7 91.808 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c ERROR Parsing file!!!
c ERROR parsing line: +156250000*x366_bit_7 +312500000*x366_bit_6 +625000000*x366_bit_5 +1250000000*x366_bit_4 +2500000000*x366_bit_3 +5000000000*x366_bit_2 +10000000000*x366_bit_1 +20000000000*x366_bit0 +40000000000*x366_bit1 -2735831*x5042_bit0 >= +0;
c Cannot parse input file name: /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-momentum1.opb
s UNKNOWN
c Exit Code: 0
c Total time: 91.701 s
#### 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): 0.90 0.95 0.95 2/55 22264
Raw data (stat): 22264 (runsolver) R 22263 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 811565823 1056768 100 4294967295 134512640 135381576 3221221680 3221216900 135158418 0 2147483391 1 90112 0 0 0 17 1 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+10.0003 s]
Raw data (loadavg): 0.91 0.96 0.95 2/55 22264
Raw data (stat): 22264 (bsolo_mis) R 22263 7876 7672 0 -1 0 2712 0 0 0 990 7 0 0 25 0 1 0 811565823 24391680 2689 4294967295 134512640 134714540 3221221776 3221220004 1077414338 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 5955 2689 1111 63 0 5892 0
vsize: 23820
[startup+20.0007 s]
Raw data (loadavg): 0.93 0.96 0.95 2/55 22264
Raw data (stat): 22264 (bsolo_mis) R 22263 7876 7672 0 -1 0 6174 0 0 0 1984 13 0 0 25 0 1 0 811565823 38666240 6151 4294967295 134512640 134714540 3221221776 3221220004 1077414435 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 9440 6151 1111 63 0 9377 0
vsize: 37760
[startup+30.0007 s]
Raw data (loadavg): 0.94 0.96 0.95 2/55 22264
Raw data (stat): 22264 (bsolo_mis) R 22263 7876 7672 0 -1 0 9485 0 0 0 2978 19 0 0 25 0 1 0 811565823 52158464 9462 4294967295 134512640 134714540 3221221776 3221220004 1077414363 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 12734 9462 1111 63 0 12671 0
vsize: 50936
[startup+40.001 s]
Raw data (loadavg): 0.95 0.96 0.95 2/55 22264
Raw data (stat): 22264 (bsolo_mis) R 22263 7876 7672 0 -1 0 12978 0 0 0 3970 27 0 0 25 0 1 0 811565823 66588672 12955 4294967295 134512640 134714540 3221221776 3221220432 134527946 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 16257 12955 1111 63 0 16194 0
vsize: 65028
[startup+50.0015 s]
Raw data (loadavg): 0.95 0.96 0.95 2/55 22264
Raw data (stat): 22264 (bsolo_mis) R 22263 7876 7672 0 -1 0 16719 0 0 0 4962 35 0 0 25 0 1 0 811565823 81842176 16696 4294967295 134512640 134714540 3221221776 3221220004 1077414385 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 19981 16696 1111 63 0 19918 0
vsize: 79924
[startup+60.0015 s]
Raw data (loadavg): 0.96 0.96 0.95 2/55 22264
Raw data (stat): 22264 (bsolo_mis) R 22263 7876 7672 0 -1 0 20799 0 0 0 5954 44 0 0 25 0 1 0 811565823 98504704 20776 4294967295 134512640 134714540 3221221776 3221220004 1077414351 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 24049 20776 1111 63 0 23986 0
vsize: 96196
[startup+70.0018 s]
Raw data (loadavg): 0.97 0.96 0.95 2/55 22264
Raw data (stat): 22264 (bsolo_mis) R 22263 7876 7672 0 -1 0 25164 0 0 0 6948 50 0 0 25 0 1 0 811565823 116482048 25141 4294967295 134512640 134714540 3221221776 3221220432 134527946 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 28438 25141 1111 63 0 28375 0
vsize: 113752
[startup+80.0024 s]
Raw data (loadavg): 0.97 0.96 0.95 2/55 22264
Raw data (stat): 22264 (bsolo_mis) R 22263 7876 7672 0 -1 0 29794 0 0 0 7940 58 0 0 25 0 1 0 811565823 135372800 29771 4294967295 134512640 134714540 3221221776 3221220432 134527946 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 33050 29771 1111 63 0 32987 0
vsize: 132200
[startup+90.0024 s]
Raw data (loadavg): 0.98 0.96 0.95 2/55 22264
Raw data (stat): 22264 (bsolo_mis) R 22263 7876 7672 0 -1 0 38860 0 0 0 8922 76 0 0 25 0 1 0 811565823 172515328 38837 4294967295 134512640 134714540 3221221776 3221220400 134524573 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 42118 38837 1111 63 0 42055 0
vsize: 168472
[startup+91.8246 s]
Raw data (loadavg): 0.98 0.96 0.95 1/54 22264
Raw data (stat): 22264 (bsolo_mis) R 22263 7876 7672 0 -1 0 38860 0 0 0 8922 76 0 0 25 0 1 0 811565823 172515328 38837 4294967295 134512640 134714540 3221221776 3221220400 134524573 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 42118 38837 1111 63 0 42055 0
vsize: 0

Child status: 0
Real time (s): 91.8242
CPU time (s): 91.808
CPU user time (s): 90.8602
CPU system time (s): 0.947855
CPU usage (%): 99.9824
Max. virtual memory (Kb): 168472
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####