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-bnl1.opb
MD5SUMbdc6ebf164274793ca5e27f860835212
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 29490
Biggest coefficient in the objective function 12938266856652800
Number of bits for the biggest coefficient in the objective function 54
Sum of the numbers in the objective function 1063579760735919966
Number of bits of the sum of numbers in the objective function 60
Biggest number in a constraint 12938266856652800
Number of bits of the biggest number in a constraint 54
Biggest sum of numbers in a constraint 1063579760735919966
Number of bits of the biggest sum of numbers60
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.298954
Number of variables35250
Total number of constraints632
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 constraints632
Minimum length of a constraint30
Maximum length of a constraint2280

Trace number 35032 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-05-28 12:02:05 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24340 boxname=wulflinc4 idbench=812 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  bdc6ebf164274793ca5e27f860835212  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-bnl1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-bnl1.opb
IDLAUNCH: 24340
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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:        747564 kB
Buffers:         34180 kB
Cached:         231536 kB
SwapCached:        504 kB
Active:          26108 kB
Inactive:       242008 kB
HighTotal:      131008 kB
HighFree:        34720 kB
LowTotal:       903652 kB
LowFree:        712844 kB
SwapTotal:     2097136 kB
SwapFree:      2096000 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5796 kB
Slab:            13228 kB
Committed_AS:    71792 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:04:15 (client local time) WITH STATUS 1 IN 130.032 SECONDS
stats: 24340 7 130.032 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): 0.92 0.95 0.90 2/54 29728
Raw data (stat): 29728 (runsolver) R 29727 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806415855 884736 94 4294967295 134512640 135332820 3221224464 3221219644 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): 0.93 0.95 0.91 2/54 29728
Raw data (stat): 29728 (pb2sat) R 29727 21152 21151 0 -1 0 2213 0 0 0 992 6 0 0 25 0 1 0 806415855 8089600 1538 4294967295 134512640 135726644 3221224592 3221221680 134556173 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 1975 1538 300 300 0 1675 0
vsize: 7900
[startup+20.0017 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 29728
Raw data (stat): 29728 (pb2sat) R 29727 21152 21151 0 -1 0 13631 0 0 0 1963 34 0 0 25 0 1 0 806415855 47775744 9712 4294967295 134512640 135726644 3221224592 3209407448 135281619 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 11664 9712 300 300 0 11364 0
vsize: 46656
[startup+30.002 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 29728
Raw data (stat): 29728 (pb2sat) R 29727 21152 21151 0 -1 0 44359 0 0 0 2905 93 0 0 25 0 1 0 806415855 138227712 28323 4294967295 134512640 135726644 3221224592 3209443680 134767136 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 33747 28323 300 300 0 33447 0
vsize: 134988
[startup+40.0018 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 29728
Raw data (stat): 29728 (pb2sat) R 29727 21152 21151 0 -1 0 77788 0 0 0 3840 158 0 0 25 0 1 0 806415855 288923648 55030 4294967295 134512640 135726644 3221224592 3209426576 134771705 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 70538 55032 300 300 0 70238 0
vsize: 282152
[startup+50.003 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 29728
Raw data (stat): 29728 (pb2sat) R 29727 21152 21151 0 -1 0 104552 0 0 0 4785 213 0 0 25 0 1 0 806415855 345333760 59960 4294967295 134512640 135726644 3221224592 3209437072 134558033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84310 59961 300 300 0 84010 0
vsize: 337240
[startup+60.0025 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 29728
Raw data (stat): 29728 (pb2sat) R 29727 21152 21151 0 -1 0 125168 0 0 0 5746 253 0 0 25 0 1 0 806415855 375209984 80334 4294967295 134512640 135726644 3221224592 3209420568 135281292 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 91604 80335 300 300 0 91304 0
vsize: 366416
[startup+70.0024 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 29728
Raw data (stat): 29728 (pb2sat) R 29727 21152 21151 0 -1 0 165408 0 0 0 6669 330 0 0 25 0 1 0 806415855 507764736 100994 4294967295 134512640 135726644 3221224592 3209423744 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 123966 100995 300 300 0 123666 0
vsize: 495864
[startup+80.0026 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 29728
Raw data (stat): 29728 (pb2sat) R 29727 21152 21151 0 -1 0 201218 0 0 0 7595 404 0 0 25 0 1 0 806415855 608428032 112023 4294967295 134512640 135726644 3221224592 3209429272 135280607 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 148542 112023 300 300 0 148242 0
vsize: 594168
[startup+90.0021 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 29728
Raw data (stat): 29728 (pb2sat) R 29727 21152 21151 0 -1 0 214467 0 0 0 8569 429 0 0 25 0 1 0 806415855 650104832 125069 4294967295 134512640 135726644 3221224592 3209434880 134767231 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 158717 125069 300 300 0 158417 0
vsize: 634868
[startup+100.002 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 29728
Raw data (stat): 29728 (pb2sat) R 29727 21152 21151 0 -1 0 234494 0 0 0 9532 467 0 0 25 0 1 0 806415855 679317504 144866 4294967295 134512640 135726644 3221224592 3209426968 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 165849 144866 300 300 0 165549 0
vsize: 663396
[startup+110.002 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 29728
Raw data (stat): 29728 (pb2sat) R 29727 21152 21151 0 -1 0 252528 0 0 0 10496 503 0 0 25 0 1 0 806415855 755871744 162690 4294967295 134512640 135726644 3221224592 3209434016 134780435 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184539 162690 300 300 0 184239 0
vsize: 738156
[startup+120.003 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 29728
Raw data (stat): 29728 (pb2sat) R 29727 21152 21151 0 -1 0 265126 0 0 0 11472 527 0 0 25 0 1 0 806415855 774639616 175026 4294967295 134512640 135726644 3221224592 3221222804 134541694 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 189121 175026 300 300 0 188821 0
vsize: 756484
[startup+130.004 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 29728
Raw data (stat): 29728 (pb2sat) R 29727 21152 21151 0 -1 4 265128 0 0 0 12439 560 0 0 25 0 1 0 806415855 0 0 4294967295 0 0 0 0 0 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 0 0 0 0 0 0 0
vsize: 0
[startup+130.042 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 29728
Raw data (stat): 29728 (pb2sat) R 29727 21152 21151 0 -1 4 265128 0 0 0 12439 560 0 0 25 0 1 0 806415855 0 0 4294967295 0 0 0 0 0 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 0 0 0 0 0 0 0
vsize: 0

Child status: 1
Real time (s): 130.042
CPU time (s): 130.032
CPU user time (s): 124.396
CPU system time (s): 5.63614
CPU usage (%): 99.9925
Max. virtual memory (Kb): 756484
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####