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-air05.opb
MD5SUMa48e4d8c244906df694603c81ee602a6
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 29720
Optimality of the best value was proved NO
Number of terms in the objective function 7195
Biggest coefficient in the objective function 2679
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 3908448
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 2679
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 3908448
Number of bits of the biggest sum of numbers22
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.13
Number of variables7195
Total number of constraints7621
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)7621
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint404

Trace number 35126 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc28 THE 2005-05-28 12:16:55 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24426 boxname=wulflinc28 idbench=898 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a48e4d8c244906df694603c81ee602a6  /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-20-10-air05.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-20-10-air05.opb
IDLAUNCH: 24426
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
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		: 451.077
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:        691180 kB
Buffers:         40272 kB
Cached:         261412 kB
SwapCached:        780 kB
Active:          25092 kB
Inactive:       296744 kB
HighTotal:      131008 kB
HighFree:         7392 kB
LowTotal:       903652 kB
LowFree:        683788 kB
SwapTotal:     2097640 kB
SwapFree:      2096164 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5460 kB
Slab:            16056 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:18:37 (client local time) WITH STATUS 1 IN 101.235 SECONDS
stats: 24426 7 101.235 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 0.98 0.91 2/54 6143
Raw data (stat): 6143 (runsolver) R 6142 24821 24820 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864741337 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+9.99997 s]
Raw data (loadavg): 0.93 0.98 0.91 2/54 6143
Raw data (stat): 6143 (pb2sat) R 6142 24821 24820 0 -1 0 26877 0 0 0 937 61 0 0 25 0 1 0 864741337 81006592 15756 4294967295 134512640 135726644 3221224576 3219720952 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 19777 15757 300 300 0 19477 0
vsize: 79108
[startup+20.0003 s]
Raw data (loadavg): 0.94 0.98 0.91 2/54 6143
Raw data (stat): 6143 (pb2sat) R 6142 24821 24820 0 -1 0 55300 0 0 0 1878 121 0 0 25 0 1 0 864741337 176975872 32937 4294967295 134512640 135726644 3221224576 3219600152 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43207 32938 300 300 0 42907 0
vsize: 172828
[startup+30.0013 s]
Raw data (loadavg): 0.95 0.98 0.91 2/54 6143
Raw data (stat): 6143 (pb2sat) R 6142 24821 24820 0 -1 0 82868 0 0 0 2825 174 0 0 25 0 1 0 864741337 245002240 50553 4294967295 134512640 135726644 3221224576 3219676152 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 59815 50553 300 300 0 59515 0
vsize: 239260
[startup+40.0011 s]
Raw data (loadavg): 0.96 0.98 0.91 2/54 6143
Raw data (stat): 6143 (pb2sat) R 6142 24821 24820 0 -1 0 112051 0 0 0 3762 236 0 0 25 0 1 0 864741337 352407552 67211 4294967295 134512640 135726644 3221224576 3220275352 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 86037 67212 300 300 0 85737 0
vsize: 344148
[startup+50.0017 s]
Raw data (loadavg): 0.96 0.98 0.91 2/54 6143
Raw data (stat): 6143 (pb2sat) R 6142 24821 24820 0 -1 0 152712 0 0 0 4687 312 0 0 25 0 1 0 864741337 484945920 88260 4294967295 134512640 135726644 3221224576 3220451752 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 118395 88260 300 300 0 118095 0
vsize: 473580
[startup+60.0013 s]
Raw data (loadavg): 0.97 0.98 0.91 2/54 6143
Raw data (stat): 6143 (pb2sat) R 6142 24821 24820 0 -1 0 165860 0 0 0 5659 340 0 0 25 0 1 0 864741337 484945920 101129 4294967295 134512640 135726644 3221224576 3219399888 135279084 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 118395 101129 300 300 0 118095 0
vsize: 473580
[startup+70.0017 s]
Raw data (loadavg): 0.97 0.98 0.91 2/54 6143
Raw data (stat): 6143 (pb2sat) R 6142 24821 24820 0 -1 0 206321 0 0 0 6570 430 0 0 25 0 1 0 864741337 605749248 116784 4294967295 134512640 135726644 3221224576 3219983664 134767079 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 147888 116784 300 300 0 147588 0
vsize: 591552
[startup+80.0028 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 6143
Raw data (stat): 6143 (pb2sat) R 6142 24821 24820 0 -1 0 223393 0 0 0 7534 465 0 0 25 0 1 0 864741337 665931776 133639 4294967295 134512640 135726644 3221224576 3219035280 134782642 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 162581 133639 300 300 0 162281 0
vsize: 650324
[startup+90.0023 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 6143
Raw data (stat): 6143 (pb2sat) R 6142 24821 24820 0 -1 0 244432 0 0 0 8493 507 0 0 25 0 1 0 864741337 701480960 154429 4294967295 134512640 135726644 3221224576 3218813264 134739475 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 171260 154430 300 300 0 170960 0
vsize: 685040
[startup+100.003 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 6143
Raw data (stat): 6143 (pb2sat) R 6142 24821 24820 0 -1 0 246931 0 0 0 9476 523 0 0 25 0 1 0 864741337 395923456 96231 4294967295 134512640 135726644 3221224576 3221222928 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 96661 96231 300 300 0 96361 0
vsize: 386644
[startup+101.234 s]
Raw data (loadavg): 0.98 0.98 0.91 1/53 6143
Raw data (stat): 6143 (pb2sat) R 6142 24821 24820 0 -1 0 246931 0 0 0 9476 523 0 0 25 0 1 0 864741337 395923456 96231 4294967295 134512640 135726644 3221224576 3221222928 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 96661 96231 300 300 0 96361 0
vsize: 0

Child status: 1
Real time (s): 101.234
CPU time (s): 101.235
CPU user time (s): 95.8004
CPU system time (s): 5.43417
CPU usage (%): 100.001
Max. virtual memory (Kb): 685040
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####