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-agg.opb
MD5SUM588d3dc936a55a936d3ebf1e4b7ec631
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 2620
Biggest coefficient in the objective function 5247074304
Number of bits for the biggest coefficient in the objective function 33
Sum of the numbers in the objective function 543106275525
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 22229811200000
Number of bits of the biggest number in a constraint 45
Biggest sum of numbers in a constraint 45187440996225
Number of bits of the biggest sum of numbers46
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.18997
Number of variables3260
Total number of constraints441
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 constraints441
Minimum length of a constraint20
Maximum length of a constraint360

Trace number 26092 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-24 02:26:47 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=15486 boxname=wulflinc31 idbench=1192 idsolver=3 numberseed=0
MD5SUM SOLVER: 03a6a792daea978e4202f78851741568  /oldhome/oroussel/solvers/bsolo_mis
MD5SUM BENCH:  588d3dc936a55a936d3ebf1e4b7ec631  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-agg.opb
REAL COMMAND:  bsolo_mis /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-agg.opb
IDLAUNCH: 15486
/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:        606360 kB
Buffers:         27112 kB
Cached:         380012 kB
SwapCached:       1352 kB
Active:         290828 kB
Inactive:       118860 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        606108 kB
SwapTotal:     2097892 kB
SwapFree:      2095532 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            12868 kB
Committed_AS:    63860 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-24 02:26:49 (client local time) WITH STATUS 0 IN 1.55976 SECONDS
stats: 15486 7 1.55976 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c ERROR Parsing file!!!
c ERROR parsing line: -54157*Y00802_bit_7 -108314*Y00802_bit_6 -216628*Y00802_bit_5 -433256*Y00802_bit_4 -866512*Y00802_bit_3 -1733024*Y00802_bit_2 -3466048*Y00802_bit_1 -6932096*Y00802_bit0 -13864192*Y00802_bit1 -27728384*Y00802_bit2 -55456768*Y00802_bit3 -110913536*Y00802_bit4 -221827072*Y00802_bit5 -443654144*Y00802_bit6 -887308288*Y00802_bit7 -1774616576*Y00802_bit8 -3549233152*Y00802_bit9 -7098466304*Y00802_bit10 -14196932608*Y00802_bit11 -28393865216*Y00802_bit12 -54157*Y00902_bit_7 -108314*Y00902_bit_6 -216628*Y00902_bit_5 -433256*Y00902_bit_4 -866512*Y00902_bit_3 -1733024*Y00902_bit_2 -3466048*Y00902_bit_1 -6932096*Y00902_bit0 -13864192*Y00902_bit1 -27728384*Y00902_bit2 -55456768*Y00902_bit3 -110913536*Y00902_bit4 -221827072*Y00902_bit5 -443654144*Y00902_bit6 -887308288*Y00902_bit7 -1774616576*Y00902_bit8 -3549233152*Y00902_bit9 -7098466304*Y00902_bit10 -14196932608*Y00902_bit11 -28393865216*Y00902_bit12 -100000*I00101_bit_7 -200000*I00101_bit_6 -400000*I00101_bit_5 -800000*I00101_bit_4 -1600000*I00101_bit_3 -3200000*I00101_bit_2 -6400000*I00101_bit_1 -12800000*I00101_bit0 -25600000*I00101_bit1 -51200000*I00101_bit2 -102400000*I00101_bit3 -204800000*I00101_bit4 -409600000*I00101_bit5 -819200000*I00101_bit6 -1638400000*I00101_bit7 -3276800000*I00101_bit8 -6553600000*I00101_bit9 -13107200000*I00101_bit10 -26214400000*I00101_bit11 -52428800000*I00101_bit12 = +0;
c Cannot parse input file name: /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-agg.opb
s UNKNOWN
c Exit Code: 0
c Total time: 1.531 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): 0.56 0.82 0.87 2/55 23213
Raw data (stat): 23213 (runsolver) R 23212 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 826609520 1056768 100 4294967295 134512640 135381576 3221221680 3221216900 135158418 0 2147483391 1 90112 0 0 0 17 0 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+1.59487 s]
Raw data (loadavg): 0.56 0.82 0.87 1/54 23213
Raw data (stat): 23213 (runsolver) R 23212 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 826609520 1056768 100 4294967295 134512640 135381576 3221221680 3221216900 135158418 0 2147483391 1 90112 0 0 0 17 0 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 0

Child status: 0
Real time (s): 1.59426
CPU time (s): 1.55976
CPU user time (s): 1.46878
CPU system time (s): 0.090986
CPU usage (%): 97.8363
Max. virtual memory (Kb): 1032
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####