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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-shell.opb
MD5SUM6ed5be5611955015db1d7f0a8e864c5a
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 27174
Biggest coefficient in the objective function 34015805440
Number of bits for the biggest coefficient in the objective function 35
Sum of the numbers in the objective function 501951111686
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 34015805440
Number of bits of the biggest number in a constraint 35
Biggest sum of numbers in a constraint 501951111686
Number of bits of the biggest sum of numbers39
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.220965
Number of variables30807
Total number of constraints653
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 constraints653
Minimum length of a constraint16
Maximum length of a constraint1040

Trace number 41406 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-09 11:57:53 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=29477 boxname=wulflinc2 idbench=1261 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  6ed5be5611955015db1d7f0a8e864c5a  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-shell.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-shell.opb
IDLAUNCH: 29477
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        852836 kB
Buffers:         12072 kB
Cached:         148768 kB
SwapCached:       1476 kB
Active:          28200 kB
Inactive:       134720 kB
HighTotal:      131008 kB
HighFree:        13272 kB
LowTotal:       903652 kB
LowFree:        839564 kB
SwapTotal:     2097136 kB
SwapFree:      2094616 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4960 kB
Slab:            13320 kB
Committed_AS:    71792 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-09 12:00:00 (client local time) WITH STATUS 20 IN 126.691 SECONDS
stats: 29477 7 126.691 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 30807 variables and 1181 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 126.632 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
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.80 0.95 0.90 2/54 27794
Raw data (stat): 27794 (runsolver) R 27793 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 910096874 884736 94 4294967295 134512640 135332820 3221224448 3221219628 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0001 s]
Raw data (loadavg): 0.83 0.95 0.90 2/54 27794
Raw data (stat): 27794 (bsolo_lpr_cuts-) R 27793 31399 31398 0 -1 0 1693 0 0 0 993 4 0 0 25 0 1 0 910096874 19607552 1613 4294967295 134512640 134716908 3221224560 3221222788 1077414363 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4787 1613 1111 63 0 4724 0
vsize: 19148
[startup+20.0001 s]
Raw data (loadavg): 0.85 0.95 0.91 2/54 27794
Raw data (stat): 27794 (bsolo_lpr_cuts-) R 27793 31399 31398 0 -1 0 2956 0 0 0 1992 5 0 0 25 0 1 0 910096874 24731648 2876 4294967295 134512640 134716908 3221224560 3221222788 1077414357 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6038 2876 1111 63 0 5975 0
vsize: 24152
[startup+30.0005 s]
Raw data (loadavg): 0.88 0.95 0.91 2/54 27794
Raw data (stat): 27794 (bsolo_lpr_cuts-) R 27793 31399 31398 0 -1 0 4363 0 0 0 2990 8 0 0 25 0 1 0 910096874 30535680 4283 4294967295 134512640 134716908 3221224560 3221222788 1077414388 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 7455 4283 1111 63 0 7392 0
vsize: 29820
[startup+40.0001 s]
Raw data (loadavg): 0.89 0.95 0.91 2/54 27794
Raw data (stat): 27794 (bsolo_lpr_cuts-) R 27793 31399 31398 0 -1 0 5785 0 0 0 3988 10 0 0 25 0 1 0 910096874 36319232 5705 4294967295 134512640 134716908 3221224560 3221222788 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8867 5705 1111 63 0 8804 0
vsize: 35468
[startup+50.0002 s]
Raw data (loadavg): 0.91 0.96 0.91 2/54 27794
Raw data (stat): 27794 (bsolo_lpr_cuts-) R 27793 31399 31398 0 -1 0 7259 0 0 0 4986 12 0 0 25 0 1 0 910096874 42426368 7179 4294967295 134512640 134716908 3221224560 3221223216 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 10358 7179 1111 63 0 10295 0
vsize: 41432
[startup+60.0006 s]
Raw data (loadavg): 0.92 0.96 0.91 2/54 27794
Raw data (stat): 27794 (bsolo_lpr_cuts-) R 27793 31399 31398 0 -1 0 8739 0 0 0 5984 13 0 0 25 0 1 0 910096874 48496640 8659 4294967295 134512640 134716908 3221224560 3221222788 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 11840 8659 1111 63 0 11777 0
vsize: 47360
[startup+70.0002 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 27794
Raw data (stat): 27794 (bsolo_lpr_cuts-) R 27793 31399 31398 0 -1 0 10369 0 0 0 6981 17 0 0 25 0 1 0 910096874 55128064 10289 4294967295 134512640 134716908 3221224560 3221222788 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 13459 10289 1111 63 0 13396 0
vsize: 53836
[startup+80.0013 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 27794
Raw data (stat): 27794 (bsolo_lpr_cuts-) R 27793 31399 31398 0 -1 0 12126 0 0 0 7977 21 0 0 25 0 1 0 910096874 62431232 12046 4294967295 134512640 134716908 3221224560 3221222788 1077414351 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 15242 12046 1111 63 0 15179 0
vsize: 60968
[startup+90.0006 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 27794
Raw data (stat): 27794 (bsolo_lpr_cuts-) R 27793 31399 31398 0 -1 0 13779 0 0 0 8974 24 0 0 25 0 1 0 910096874 69206016 13699 4294967295 134512640 134716908 3221224560 3221222788 1077414388 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 16896 13699 1111 63 0 16833 0
vsize: 67584
[startup+100 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 27794
Raw data (stat): 27794 (bsolo_lpr_cuts-) R 27793 31399 31398 0 -1 0 15634 0 0 0 9971 28 0 0 25 0 1 0 910096874 76816384 15554 4294967295 134512640 134716908 3221224560 3221222788 1077414388 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 18754 15554 1111 63 0 18691 0
vsize: 75016
[startup+110.001 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 27794
Raw data (stat): 27794 (bsolo_lpr_cuts-) R 27793 31399 31398 0 -1 0 17570 0 0 0 10968 31 0 0 25 0 1 0 910096874 84721664 17490 4294967295 134512640 134716908 3221224560 3221223216 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 20684 17490 1111 63 0 20621 0
vsize: 82736
[startup+120.001 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 27794
Raw data (stat): 27794 (bsolo_lpr_cuts-) R 27793 31399 31398 0 -1 0 20868 0 0 0 11962 37 0 0 25 0 1 0 910096874 98070528 20788 4294967295 134512640 134716908 3221224560 3221222844 1077399562 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 23943 20788 1111 63 0 23880 0
vsize: 95772
[startup+126.695 s]
Raw data (loadavg): 0.97 0.96 0.91 1/53 27794
Raw data (stat): 27794 (bsolo_lpr_cuts-) R 27793 31399 31398 0 -1 0 20868 0 0 0 11962 37 0 0 25 0 1 0 910096874 98070528 20788 4294967295 134512640 134716908 3221224560 3221222844 1077399562 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 23943 20788 1111 63 0 23880 0
vsize: 0

Child status: 20
Real time (s): 126.694
CPU time (s): 126.691
CPU user time (s): 126.135
CPU system time (s): 0.555915
CPU usage (%): 99.9971
Max. virtual memory (Kb): 95772
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####