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/MIPLIB/miplib3/normalized-mps-v2-20-10-gen.opb
MD5SUM44022c506f5e075b1877fcb50aa96dbc
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 13134
Biggest coefficient in the objective function 3456331981783040
Number of bits for the biggest coefficient in the objective function 52
Sum of the numbers in the objective function 2106245048465744992
Number of bits of the sum of numbers in the objective function 61
Biggest number in a constraint 3456331981783040
Number of bits of the biggest number in a constraint 52
Biggest sum of numbers in a constraint 2106245048465744992
Number of bits of the biggest sum of numbers61
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.169973
Number of variables19038
Total number of constraints1074
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)144
Number of constraints which are nor clauses,nor cardinality constraints930
Minimum length of a constraint1
Maximum length of a constraint264

Trace number 26393

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc30 THE 2005-05-24 15:40:28 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=13380 boxname=wulflinc30 idbench=1030 idsolver=3 numberseed=0
MD5SUM SOLVER: 03a6a792daea978e4202f78851741568  /oldhome/oroussel/solvers/bsolo_mis
MD5SUM BENCH:  44022c506f5e075b1877fcb50aa96dbc  /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-20-10-gen.opb
REAL COMMAND:  bsolo_mis /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-20-10-gen.opb
IDLAUNCH: 13380
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.072
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		: 451.072
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:        504416 kB
Buffers:         34324 kB
Cached:         463872 kB
SwapCached:        448 kB
Active:          26284 kB
Inactive:       474712 kB
HighTotal:      131008 kB
HighFree:        54096 kB
LowTotal:       903652 kB
LowFree:        450320 kB
SwapTotal:     2097892 kB
SwapFree:      2097356 kB
Dirty:              36 kB
Writeback:           0 kB
Mapped:           6276 kB
Slab:            23592 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-24 15:41:21 (client local time) WITH STATUS 0 IN 52.765 SECONDS
stats: 13380 7 52.765 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c ERROR Parsing file!!!
c ERROR parsing line: +341333248*XON_0x2e_3_0x2e_01_bit0 -15625*ZS_0x2e_3_0x2e_011_bit_10 -31250*ZS_0x2e_3_0x2e_011_bit_9 -62500*ZS_0x2e_3_0x2e_011_bit_8 -125000*ZS_0x2e_3_0x2e_011_bit_7 -250000*ZS_0x2e_3_0x2e_011_bit_6 -500000*ZS_0x2e_3_0x2e_011_bit_5 -1000000*ZS_0x2e_3_0x2e_011_bit_4 -2000000*ZS_0x2e_3_0x2e_011_bit_3 -4000000*ZS_0x2e_3_0x2e_011_bit_2 -8000000*ZS_0x2e_3_0x2e_011_bit_1 -16000000*ZS_0x2e_3_0x2e_011_bit0 -32000000*ZS_0x2e_3_0x2e_011_bit1 -64000000*ZS_0x2e_3_0x2e_011_bit2 -128000000*ZS_0x2e_3_0x2e_011_bit3 -256000000*ZS_0x2e_3_0x2e_011_bit4 -512000000*ZS_0x2e_3_0x2e_011_bit5 -1024000000*ZS_0x2e_3_0x2e_011_bit6 -2048000000*ZS_0x2e_3_0x2e_011_bit7 -4096000000*ZS_0x2e_3_0x2e_011_bit8 -8192000000*ZS_0x2e_3_0x2e_011_bit9 -16384000000*ZS_0x2e_3_0x2e_011_bit10 -32768000000*ZS_0x2e_3_0x2e_011_bit11 -65536000000*ZS_0x2e_3_0x2e_011_bit12 -131072000000*ZS_0x2e_3_0x2e_011_bit13 -262144000000*ZS_0x2e_3_0x2e_011_bit14 -524288000000*ZS_0x2e_3_0x2e_011_bit15 -1048576000000*ZS_0x2e_3_0x2e_011_bit16 -2097152000000*ZS_0x2e_3_0x2e_011_bit17 -4194304000000*ZS_0x2e_3_0x2e_011_bit18 -8388608000000*ZS_0x2e_3_0x2e_011_bit19 >= +0;
c Cannot parse input file name: /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-20-10-gen.opb
s UNKNOWN
c Exit Code: 0
c Total time: 52.733 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): 0.88 0.94 1.03 2/54 23299
Raw data (stat): 23299 (runsolver) R 23298 22056 22055 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 831386788 1052672 99 4294967295 134512640 135381576 3221224496 3221219712 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0005 s]
Raw data (loadavg): 0.89 0.94 1.03 2/54 23299
Raw data (stat): 23299 (bsolo_mis) R 23298 22056 22055 0 -1 0 1965 0 0 0 995 4 0 0 25 0 1 0 831386788 21348352 1943 4294967295 134512640 134714540 3221224592 3221222820 1077414435 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5212 1943 1111 63 0 5149 0
vsize: 20848
[startup+20.0002 s]
Raw data (loadavg): 0.91 0.95 1.03 2/54 23299
Raw data (stat): 23299 (bsolo_mis) R 23298 22056 22055 0 -1 0 2805 0 0 0 1993 6 0 0 25 0 1 0 831386788 24788992 2783 4294967295 134512640 134714540 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6052 2783 1111 63 0 5989 0
vsize: 24208
[startup+30.0012 s]
Raw data (loadavg): 0.92 0.95 1.02 2/54 23299
Raw data (stat): 23299 (bsolo_mis) R 23298 22056 22055 0 -1 0 3957 0 0 0 2991 8 0 0 25 0 1 0 831386788 29458432 3935 4294967295 134512640 134714540 3221224592 3221222820 1077414426 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 7192 3935 1111 63 0 7129 0
vsize: 28768
[startup+40.0009 s]
Raw data (loadavg): 0.93 0.95 1.02 2/54 23299
Raw data (stat): 23299 (bsolo_mis) R 23298 22056 22055 0 -1 0 5463 0 0 0 3988 11 0 0 25 0 1 0 831386788 35692544 5441 4294967295 134512640 134714540 3221224592 3221222820 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8714 5441 1111 63 0 8651 0
vsize: 34856
[startup+50.0015 s]
Raw data (loadavg): 0.94 0.95 1.02 2/54 23299
Raw data (stat): 23299 (bsolo_mis) R 23298 22056 22055 0 -1 0 12006 0 0 0 4973 26 0 0 25 0 1 0 831386788 62517248 11984 4294967295 134512640 134714540 3221224592 3221222252 1077253170 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 15263 11984 1111 63 0 15200 0
vsize: 61052
[startup+52.7661 s]
Raw data (loadavg): 0.94 0.95 1.02 1/53 23299
Raw data (stat): 23299 (bsolo_mis) R 23298 22056 22055 0 -1 0 12006 0 0 0 4973 26 0 0 25 0 1 0 831386788 62517248 11984 4294967295 134512640 134714540 3221224592 3221222252 1077253170 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 15263 11984 1111 63 0 15200 0
vsize: 0

Child status: 0
Real time (s): 52.7654
CPU time (s): 52.765
CPU user time (s): 52.454
CPU system time (s): 0.310952
CPU usage (%): 99.9991
Max. virtual memory (Kb): 61052
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####