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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-perold.opb
MD5SUMe16309ade16cb14d2a4f972d0ed40677
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 210
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 7516192761
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint -5768736714256285696
Number of bits of the biggest number in a constraint 64
Biggest sum of numbers in a constraint 84317276328546238464
Number of bits of the biggest sum of numbers67
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.15882
Number of variables36286
Total number of constraints891
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 constraints891
Minimum length of a constraint10
Maximum length of a constraint991

Trace number 35067 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-05-28 12:09:42 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24377 boxname=wulflinc2 idbench=849 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  e16309ade16cb14d2a4f972d0ed40677  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-perold.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-perold.opb
IDLAUNCH: 24377
/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:        723864 kB
Buffers:         37052 kB
Cached:         250924 kB
SwapCached:        820 kB
Active:          26128 kB
Inactive:       264064 kB
HighTotal:      131008 kB
HighFree:        31752 kB
LowTotal:       903652 kB
LowFree:        692112 kB
SwapTotal:     2097136 kB
SwapFree:      2095480 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5340 kB
Slab:            14992 kB
Committed_AS:    71792 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:11:20 (client local time) WITH STATUS 1 IN 96.6463 SECONDS
stats: 24377 7 96.6463 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc
#### 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): 0.93 0.96 0.90 1/54 9677
Raw data (stat): 9677 (runsolver) D 9676 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 18 0 1 0 806473557 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 3225161850 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+9.99975 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 9677
Raw data (stat): 9677 (pb2sat) R 9676 31399 31398 0 -1 0 29816 0 0 0 932 64 0 0 25 0 1 0 806473557 91971584 18696 4294967295 134512640 135726644 3221224576 3221108672 134554553 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22454 18696 300 300 0 22154 0
vsize: 89816
[startup+20.0004 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 9677
Raw data (stat): 9677 (pb2sat) R 9676 31399 31398 0 -1 0 59590 0 0 0 1876 120 0 0 25 0 1 0 806473557 180224000 36969 4294967295 134512640 135726644 3221224576 3221108588 135297948 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 44000 36969 300 300 0 43700 0
vsize: 176000
[startup+30.0001 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 9677
Raw data (stat): 9677 (pb2sat) R 9676 31399 31398 0 -1 0 97958 0 0 0 2805 192 0 0 25 0 1 0 806473557 292216832 52490 4294967295 134512640 135726644 3221224576 3221112696 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 71342 52491 300 300 0 71042 0
vsize: 285368
[startup+39.9998 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 9677
Raw data (stat): 9677 (pb2sat) R 9676 31399 31398 0 -1 0 118212 0 0 0 3767 229 0 0 25 0 1 0 806473557 356745216 72479 4294967295 134512640 135726644 3221224576 3221109872 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 87096 72479 300 300 0 86796 0
vsize: 348384
[startup+50.0005 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 9677
Raw data (stat): 9677 (pb2sat) R 9676 31399 31398 0 -1 0 156791 0 0 0 4696 300 0 0 25 0 1 0 806473557 476377088 90356 4294967295 134512640 135726644 3221224576 3221108696 135280864 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 116303 90356 300 300 0 116003 0
vsize: 465212
[startup+60.0002 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 9677
Raw data (stat): 9677 (pb2sat) R 9676 31399 31398 0 -1 0 193775 0 0 0 5622 375 0 0 25 0 1 0 806473557 579473408 102519 4294967295 134512640 135726644 3221224576 3221107808 134767076 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 141473 102521 300 300 0 141173 0
vsize: 565892
[startup+69.9999 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 9677
Raw data (stat): 9677 (pb2sat) R 9676 31399 31398 0 -1 0 211815 0 0 0 6585 412 0 0 25 0 1 0 806473557 640331776 120326 4294967295 134512640 135726644 3221224576 3221108008 135281294 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 156331 120326 300 300 0 156031 0
vsize: 625324
[startup+79.9996 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 9677
Raw data (stat): 9677 (pb2sat) R 9676 31399 31398 0 -1 0 232956 0 0 0 7544 453 0 0 25 0 1 0 806473557 672460800 141196 4294967295 134512640 135726644 3221224576 3221109496 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 164175 141196 300 300 0 163875 0
vsize: 656700
[startup+89.9994 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 9677
Raw data (stat): 9677 (pb2sat) R 9676 31399 31398 0 -1 0 246959 0 0 0 8503 493 0 0 25 0 1 0 806473557 382504960 92438 4294967295 134512640 135726644 3221224576 3221222764 135277480 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 93385 92438 300 300 0 93085 0
vsize: 373540
[startup+96.674 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 9677
Raw data (stat): 9677 (pb2sat) R 9676 31399 31398 0 -1 0 246959 0 0 0 8503 493 0 0 25 0 1 0 806473557 382504960 92438 4294967295 134512640 135726644 3221224576 3221222764 135277480 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 93385 92438 300 300 0 93085 0
vsize: 0

Child status: 1
Real time (s): 96.6735
CPU time (s): 96.6463
CPU user time (s): 91.5141
CPU system time (s): 5.13222
CPU usage (%): 99.9719
Max. virtual memory (Kb): 656700
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####