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 35140 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc20 THE 2005-05-28 12:18:28 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24442 boxname=wulflinc20 idbench=914 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  860f839de61311f9d82ecee84a58294b  /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-gen.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-gen.opb
IDLAUNCH: 24442
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.215
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		: 451.215
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:        702548 kB
Buffers:         34256 kB
Cached:         274092 kB
SwapCached:        644 kB
Active:          43112 kB
Inactive:       267296 kB
HighTotal:      131008 kB
HighFree:        25032 kB
LowTotal:       903652 kB
LowFree:        677516 kB
SwapTotal:     2097892 kB
SwapFree:      2096312 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            15952 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:20:09 (client local time) WITH STATUS 1 IN 100.553 SECONDS
stats: 24442 7 100.553 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): 0.88 0.93 0.90 2/54 10672
Raw data (stat): 10672 (runsolver) R 10671 25399 25398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864743936 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+10.0008 s]
Raw data (loadavg): 0.89 0.93 0.90 2/54 10672
Raw data (stat): 10672 (pb2sat) R 10671 25399 25398 0 -1 0 21979 0 0 0 948 51 0 0 25 0 1 0 864743936 68136960 13967 4294967295 134512640 135726644 3221224592 3216280544 134554711 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 16635 13967 300 300 0 16335 0
vsize: 66540
[startup+20.0019 s]
Raw data (loadavg): 0.91 0.93 0.91 2/54 10672
Raw data (stat): 10672 (pb2sat) R 10671 25399 25398 0 -1 0 54449 0 0 0 1877 122 0 0 25 0 1 0 864743936 177508352 32114 4294967295 134512640 135726644 3221224592 3215972016 134780348 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43337 32114 300 300 0 43037 0
vsize: 173348
[startup+30.0022 s]
Raw data (loadavg): 0.92 0.93 0.91 2/54 10672
Raw data (stat): 10672 (pb2sat) R 10671 25399 25398 0 -1 0 83002 0 0 0 2819 180 0 0 25 0 1 0 864743936 248168448 50717 4294967295 134512640 135726644 3221224592 3216032880 134766787 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 60588 50717 300 300 0 60288 0
vsize: 242352
[startup+40.0019 s]
Raw data (loadavg): 0.93 0.93 0.91 2/54 10672
Raw data (stat): 10672 (pb2sat) R 10671 25399 25398 0 -1 0 112502 0 0 0 3760 239 0 0 25 0 1 0 864743936 353411072 67683 4294967295 134512640 135726644 3221224592 3216028144 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86282 67683 300 300 0 85982 0
vsize: 345128
[startup+50.0065 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 10672
Raw data (stat): 10672 (pb2sat) R 10671 25399 25398 0 -1 0 154068 0 0 0 4685 315 0 0 25 0 1 0 864743936 488427520 89630 4294967295 134512640 135726644 3221224592 3215955708 134604415 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 119245 89630 300 300 0 118945 0
vsize: 476980
[startup+60.0064 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 10672
Raw data (stat): 10672 (pb2sat) R 10671 25399 25398 0 -1 0 176715 0 0 0 5641 359 0 0 25 0 1 0 864743936 689758208 112006 4294967295 134512640 135726644 3221224592 3215999808 134784885 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 168398 112011 300 300 0 168098 0
vsize: 673592
[startup+70.0071 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 10672
Raw data (stat): 10672 (pb2sat) R 10671 25399 25398 0 -1 0 208098 0 0 0 6569 431 0 0 25 0 1 0 864743936 640487424 118585 4294967295 134512640 135726644 3221224592 3215993216 134780435 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 156369 118585 300 300 0 156069 0
vsize: 625476
[startup+80.007 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 10672
Raw data (stat): 10672 (pb2sat) R 10671 25399 25398 0 -1 0 228476 0 0 0 7528 473 0 0 25 0 1 0 864743936 671440896 138700 4294967295 134512640 135726644 3221224592 3215975236 134766428 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 163926 138701 300 300 0 163626 0
vsize: 655704
[startup+90.0078 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 10672
Raw data (stat): 10672 (pb2sat) R 10671 25399 25398 0 -1 0 248968 0 0 0 8486 515 0 0 25 0 1 0 864743936 706625536 158936 4294967295 134512640 135726644 3221224592 3217105732 135138247 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 172516 158936 300 300 0 172216 0
vsize: 690064
[startup+100.007 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 10672
Raw data (stat): 10672 (pb2sat) R 10671 25399 25398 0 -1 0 248970 0 0 0 9472 528 0 0 25 0 1 0 864743936 395968512 95556 4294967295 134512640 135726644 3221224592 3221222992 134778978 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 96672 95556 300 300 0 96372 0
vsize: 386688
[startup+100.549 s]
Raw data (loadavg): 0.97 0.94 0.91 1/53 10672
Raw data (stat): 10672 (pb2sat) R 10671 25399 25398 0 -1 0 248970 0 0 0 9472 528 0 0 25 0 1 0 864743936 395968512 95556 4294967295 134512640 135726644 3221224592 3221222992 134778978 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 96672 95556 300 300 0 96372 0
vsize: 0

Child status: 1
Real time (s): 100.549
CPU time (s): 100.553
CPU user time (s): 95.0685
CPU system time (s): 5.48417
CPU usage (%): 100.004
Max. virtual memory (Kb): 690064
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####