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/miplib/normalized-mps-v2-20-10-gen.opb
MD5SUM860f839de61311f9d82ecee84a58294b
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 benchmark0.167973
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 39887

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-07 22:04:36 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=27958 boxname=wulflinc6 idbench=914 idsolver=20 numberseed=0
MD5SUM SOLVER: f6aa7fb267fa9710116626be7e6d3048  /oldhome/oroussel/solvers/bsolo_lpr-v2
MD5SUM BENCH:  860f839de61311f9d82ecee84a58294b  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-gen.opb
REAL COMMAND:  bsolo_lpr-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-gen.opb
IDLAUNCH: 27958
/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:        899040 kB
Buffers:         12664 kB
Cached:         100912 kB
SwapCached:       1004 kB
Active:          27720 kB
Inactive:        87996 kB
HighTotal:      131008 kB
HighFree:        36764 kB
LowTotal:       903652 kB
LowFree:        862276 kB
SwapTotal:     2097136 kB
SwapFree:      2095172 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5004 kB
Slab:            14132 kB
Committed_AS:    63736 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-07 22:05:34 (client local time) WITH STATUS 0 IN 57.4583 SECONDS
stats: 27958 7 57.4583 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
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/wulflinc6/normalized-mps-v2-20-10-gen.opb
s UNKNOWN
c Exit Code: 0
c Total time: 57.424 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 0.94 0.90 2/54 20897
Raw data (stat): 20897 (runsolver) R 20896 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 896450800 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0002 s]
Raw data (loadavg): 0.83 0.94 0.90 2/54 20897
Raw data (stat): 20897 (bsolo_lpr-v2) R 20896 25568 25567 0 -1 0 2034 0 0 0 992 5 0 0 25 0 1 0 896450800 21053440 1954 4294967295 134512640 134716908 3221224576 3221222804 1077414388 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5140 1954 1111 63 0 5077 0
vsize: 20560
[startup+20.0006 s]
Raw data (loadavg): 0.86 0.94 0.90 2/54 20897
Raw data (stat): 20897 (bsolo_lpr-v2) R 20896 25568 25567 0 -1 0 2786 0 0 0 1990 7 0 0 25 0 1 0 896450800 24039424 2706 4294967295 134512640 134716908 3221224576 3221222804 1077414420 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5869 2706 1111 63 0 5806 0
vsize: 23476
[startup+30.0007 s]
Raw data (loadavg): 0.88 0.94 0.90 2/54 20897
Raw data (stat): 20897 (bsolo_lpr-v2) R 20896 25568 25567 0 -1 0 3692 0 0 0 2989 8 0 0 25 0 1 0 896450800 27893760 3612 4294967295 134512640 134716908 3221224576 3221222804 1077414370 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 6810 3612 1111 63 0 6747 0
vsize: 27240
[startup+40.0005 s]
Raw data (loadavg): 0.90 0.94 0.90 2/54 20897
Raw data (stat): 20897 (bsolo_lpr-v2) R 20896 25568 25567 0 -1 0 4915 0 0 0 3987 11 0 0 25 0 1 0 896450800 32882688 4835 4294967295 134512640 134716908 3221224576 3221222804 1077414433 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8028 4835 1111 63 0 7965 0
vsize: 32112
[startup+50.0011 s]
Raw data (loadavg): 0.91 0.94 0.90 2/54 20897
Raw data (stat): 20897 (bsolo_lpr-v2) R 20896 25568 25567 0 -1 0 6730 0 0 0 4984 15 0 0 25 0 1 0 896450800 40288256 6650 4294967295 134512640 134716908 3221224576 3221222804 1077414388 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 9836 6650 1111 63 0 9773 0
vsize: 39344
[startup+57.4677 s]
Raw data (loadavg): 0.92 0.94 0.90 1/53 20899
Raw data (stat): 20897 (bsolo_lpr-v2) R 20896 25568 25567 0 -1 0 6730 0 0 0 4984 15 0 0 25 0 1 0 896450800 40288256 6650 4294967295 134512640 134716908 3221224576 3221222804 1077414388 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 9836 6650 1111 63 0 9773 0
vsize: 0

Child status: 0
Real time (s): 57.467
CPU time (s): 57.4583
CPU user time (s): 57.1233
CPU system time (s): 0.334949
CPU usage (%): 99.9847
Max. virtual memory (Kb): 39344
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####