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/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-dano3_3.opb
MD5SUM21464e866eda151b04d2fc7e4d1dba6a
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 30
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 1073741823
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 134217728000
Number of bits of the biggest number in a constraint 37
Biggest sum of numbers in a constraint 569083166190
Number of bits of the biggest sum of numbers40
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark15.6156
Number of variables404796
Total number of constraints3778
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)72
Number of constraints which are nor clauses,nor cardinality constraints3706
Minimum length of a constraint1
Maximum length of a constraint15900

Trace number 41256 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-09 09:24:49 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=29327 boxname=wulflinc2 idbench=1111 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  21464e866eda151b04d2fc7e4d1dba6a  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-dano3_3.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-dano3_3.opb
IDLAUNCH: 29327
/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:        584552 kB
Buffers:         12144 kB
Cached:         416336 kB
SwapCached:       1484 kB
Active:          64760 kB
Inactive:       365848 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        584300 kB
SwapTotal:     2097136 kB
SwapFree:      2094616 kB
Dirty:               4 kB
Writeback:           0 kB
Mapped:           4964 kB
Slab:            13652 kB
Committed_AS:    71792 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-09 09:26:29 (client local time) WITH STATUS 0 IN 99.1059 SECONDS
stats: 29327 7 99.1059 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
free(): invalid pointer 0xa37b330!
free(): invalid pointer 0x40fe1008!
c ERROR Parsing file!!!
c ERROR parsing line: +125*z_bit_10 +250*z_bit_9 +500*z_bit_8 +1000*z_bit_7 +2000*z_bit_6 +4000*z_bit_5 +8000*z_bit_4 +16000*z_bit_3 +32000*z_bit_2 +64000*z_bit_1 +128000*z_bit0 +256000*z_bit1 +512000*z_bit2 +1024000*z_bit3 +2048000*z_bit4 +4096000*z_bit5 +8192000*z_bit6 +16384000*z_bit7 +32768000*z_bit8 +65536000*z_bit9 +131072000*z_bit10 +262144000*z_bit11 +524288000*z_bit12 +1048576000*z_bit13 +2097152000*z_bit14 +4194304000*z_bit15 +8388608000*z_bit16 +16777216000*z_bit17 +33554432000*z_bit18 +67108864000*z_bit19 +69541376*xab_bit0 -125*floab_bit_10 -250*floab_bit_9 -500*floab_bit_8 -1000*floab_bit_7 -2000*floab_bit_6 -4000*floab_bit_5 -8000*floab_bit_4 -16000*floab_bit_3 -32000*floab_bit_2 -64000*floab_bit_1 -128000*floab_bit0 -256000*floab_bit1 -512000*floab_bit2 -1024000*floab_bit3 -2048000*floab_bit4 -4096000*floab_bit5 -8192000*floab_bit6 -16384000*floab_bit7 -32768000*floab_bit8 -65536000*floab_bit9 -131072000*floab_bit10 -262144000*floab_bit11 -524288000*floab_bit12 -1048576000*floab_bit13 -2097152000*floab_bit14 -4194304000*floab_bit15 -8388608000*floab_bit16 -16777216000*floab_bit17 -33554432000*floab_bit18 -67108864000*floab_bit19 >= +69541376;
c Cannot parse input file name: /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-dano3_3.opb
s UNKNOWN
c Exit Code: 0
c Total time: 98.849 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 0.88 0.88 2/54 24424
Raw data (stat): 24424 (runsolver) R 24423 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 909178492 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+10.0003 s]
Raw data (loadavg): 0.83 0.88 0.88 2/54 24424
Raw data (stat): 24424 (bsolo_lpr_cuts-) R 24423 31399 31398 0 -1 0 21226 0 0 0 953 44 0 0 25 0 1 0 909178492 100302848 21146 4294967295 134512640 134716908 3221224560 3221222836 1077414435 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 24488 21146 1111 63 0 24425 0
vsize: 97952
[startup+20.0019 s]
Raw data (loadavg): 0.86 0.88 0.88 2/54 24424
Raw data (stat): 24424 (bsolo_lpr_cuts-) R 24423 31399 31398 0 -1 0 32293 0 0 0 1929 69 0 0 25 0 1 0 909178492 144863232 32053 4294967295 134512640 134716908 3221224560 3221222836 1077414388 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 35367 32053 1111 63 0 35304 0
vsize: 141468
[startup+30.0027 s]
Raw data (loadavg): 0.88 0.89 0.88 2/54 24424
Raw data (stat): 24424 (bsolo_lpr_cuts-) R 24423 31399 31398 0 -1 0 46522 0 0 0 2900 98 0 0 25 0 1 0 909178492 203051008 46156 4294967295 134512640 134716908 3221224560 3221222836 1077414336 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 49573 46156 1111 63 0 49510 0
vsize: 198292
[startup+40.0034 s]
Raw data (loadavg): 0.90 0.89 0.89 2/54 24424
Raw data (stat): 24424 (bsolo_lpr_cuts-) R 24423 31399 31398 0 -1 0 57926 0 0 0 3874 124 0 0 25 0 1 0 909178492 249159680 57480 4294967295 134512640 134716908 3221224560 3221221356 1077091018 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 60830 57480 1111 63 0 60767 0
vsize: 243320
[startup+50.0041 s]
Raw data (loadavg): 0.91 0.89 0.89 2/54 24424
Raw data (stat): 24424 (bsolo_lpr_cuts-) R 24423 31399 31398 0 -1 0 70255 0 0 0 4849 149 0 0 25 0 1 0 909178492 299442176 69809 4294967295 134512640 134716908 3221224560 3221222836 1077414424 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 73106 69809 1111 63 0 73043 0
vsize: 292424
[startup+60.0048 s]
Raw data (loadavg): 0.93 0.90 0.89 2/54 24424
Raw data (stat): 24424 (bsolo_lpr_cuts-) R 24423 31399 31398 0 -1 0 82233 0 0 0 5825 174 0 0 25 0 1 0 909178492 348172288 81409 4294967295 134512640 134716908 3221224560 3221222836 1077414385 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 85003 81409 1111 63 0 84940 0
vsize: 340012
[startup+70.0054 s]
Raw data (loadavg): 0.94 0.90 0.89 2/54 24424
Raw data (stat): 24424 (bsolo_lpr_cuts-) R 24423 31399 31398 0 -1 0 95490 0 0 0 6799 200 0 0 25 0 1 0 909178492 401514496 94505 4294967295 134512640 134716908 3221224560 3221222836 1077414351 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 98026 94505 1111 63 0 97963 0
vsize: 392104
[startup+80.006 s]
Raw data (loadavg): 0.95 0.90 0.89 2/54 24424
Raw data (stat): 24424 (bsolo_lpr_cuts-) R 24423 31399 31398 0 -1 0 105334 0 0 0 7778 221 0 0 25 0 1 0 909178492 441589760 104349 4294967295 134512640 134716908 3221224560 3221222836 1077414385 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 107810 104349 1111 63 0 107747 0
vsize: 431240
[startup+90.0058 s]
Raw data (loadavg): 0.95 0.90 0.89 2/54 24424
Raw data (stat): 24424 (bsolo_lpr_cuts-) R 24423 31399 31398 0 -1 0 116483 0 0 0 8755 243 0 0 25 0 1 0 909178492 487034880 115498 4294967295 134512640 134716908 3221224560 3221221324 1077196376 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 118905 115498 1111 63 0 118842 0
vsize: 475620
[startup+99.1151 s]
Raw data (loadavg): 0.96 0.91 0.89 1/53 24424
Raw data (stat): 24424 (bsolo_lpr_cuts-) R 24423 31399 31398 0 -1 0 116483 0 0 0 8755 243 0 0 25 0 1 0 909178492 487034880 115498 4294967295 134512640 134716908 3221224560 3221221324 1077196376 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 118905 115498 1111 63 0 118842 0
vsize: 0

Child status: 0
Real time (s): 99.1148
CPU time (s): 99.1059
CPU user time (s): 96.0444
CPU system time (s): 3.06153
CPU usage (%): 99.991
Max. virtual memory (Kb): 475620
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####