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/miplib3/normalized-mps-v2-20-10-air05.opb
MD5SUM02b9fdfc96e8b88ab6df67318e21abbc
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 benchmark1175.14
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 42495 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 09:21:28 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25715 boxname=wulflinc3 idbench=1015 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  02b9fdfc96e8b88ab6df67318e21abbc  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-air05.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-air05.opb
IDLAUNCH: 25715
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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		: 451.190
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:        760224 kB
Buffers:          7924 kB
Cached:         244284 kB
SwapCached:        820 kB
Active:          33968 kB
Inactive:       220380 kB
HighTotal:      131008 kB
HighFree:        12880 kB
LowTotal:       903652 kB
LowFree:        747344 kB
SwapTotal:     2097136 kB
SwapFree:      2095340 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14336 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 09:23:23 (client local time) WITH STATUS 1 IN 115.311 SECONDS
stats: 25715 7 115.311 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 45244
c big objective detected
c trying from 0 to 511

	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): 0.84 0.95 0.91 2/54 20025
Raw data (stat): 20025 (runsolver) R 20024 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 969633516 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+10.0009 s]
Raw data (loadavg): 0.87 0.95 0.91 2/54 20025
Raw data (stat): 20025 (pb2sat-v2) R 20024 20224 20223 0 -1 0 13657 0 0 0 970 28 0 0 25 0 1 0 969633516 41922560 7950 4294967295 134512640 135730672 3221224576 3221223072 134747651 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 10235 7950 301 301 0 9934 0
vsize: 40940
[startup+20.0016 s]
Raw data (loadavg): 0.89 0.95 0.91 2/54 20025
Raw data (stat): 20025 (pb2sat-v2) R 20024 20224 20223 0 -1 0 26355 0 0 0 1943 55 0 0 25 0 1 0 969633516 86753280 15186 4294967295 134512640 135730672 3221224576 3217916208 134786288 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21180 15187 301 301 0 20879 0
vsize: 84720
[startup+30.0014 s]
Raw data (loadavg): 0.90 0.95 0.91 2/54 20025
Raw data (stat): 20025 (pb2sat-v2) R 20024 20224 20223 0 -1 0 54318 0 0 0 2881 117 0 0 25 0 1 0 969633516 173584384 31915 4294967295 134512640 135730672 3221224576 3218811384 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42379 31915 301 301 0 42078 0
vsize: 169516
[startup+40.0012 s]
Raw data (loadavg): 0.92 0.95 0.91 2/54 20025
Raw data (stat): 20025 (pb2sat-v2) R 20024 20224 20223 0 -1 0 81288 0 0 0 3823 175 0 0 25 0 1 0 969633516 245198848 49464 4294967295 134512640 135730672 3221224576 3218793616 135109362 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 59863 49465 301 301 0 59562 0
vsize: 239452
[startup+50.0011 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 20025
Raw data (stat): 20025 (pb2sat-v2) R 20024 20224 20223 0 -1 0 108259 0 0 0 4764 234 0 0 25 0 1 0 969633516 345440256 63919 4294967295 134512640 135730672 3221224576 3218620896 135291069 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84336 63920 301 301 0 84035 0
vsize: 337344
[startup+60.0009 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 20025
Raw data (stat): 20025 (pb2sat-v2) R 20024 20224 20223 0 -1 0 150079 0 0 0 5687 312 0 0 25 0 1 0 969633516 549281792 104537 4294967295 134512640 135730672 3221224576 3219980176 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 134102 104537 301 301 0 133801 0
vsize: 536408
[startup+70.0018 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 20025
Raw data (stat): 20025 (pb2sat-v2) R 20024 20224 20223 0 -1 0 160581 0 0 0 6660 339 0 0 25 0 1 0 969633516 482168832 96404 4294967295 134512640 135730672 3221224576 3220032428 135301640 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 117717 96404 301 301 0 117416 0
vsize: 470868
[startup+80.0016 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 20025
Raw data (stat): 20025 (pb2sat-v2) R 20024 20224 20223 0 -1 0 197857 0 0 0 7576 423 0 0 25 0 1 0 969633516 591753216 108878 4294967295 134512640 135730672 3221224576 3218176976 134786338 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 144471 108878 301 301 0 144170 0
vsize: 577884
[startup+90.0015 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 20025
Raw data (stat): 20025 (pb2sat-v2) R 20024 20224 20223 0 -1 0 214140 0 0 0 8539 460 0 0 25 0 1 0 969633516 650584064 124949 4294967295 134512640 135730672 3221224576 3220462336 134549977 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 158834 124949 301 301 0 158533 0
vsize: 635336
[startup+100.001 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 20025
Raw data (stat): 20025 (pb2sat-v2) R 20024 20224 20223 0 -1 0 233061 0 0 0 9499 501 0 0 25 0 1 0 969633516 680050688 143623 4294967295 134512640 135730672 3221224576 3219774184 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 166028 143623 301 301 0 165727 0
vsize: 664112
[startup+110.002 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 20025
Raw data (stat): 20025 (pb2sat-v2) R 20024 20224 20223 0 -1 0 244736 0 0 0 10472 527 0 0 25 0 1 0 969633516 701374464 155130 4294967295 134512640 135730672 3221224576 3221222828 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 171234 155130 301 301 0 170933 0
vsize: 684936
[startup+115.319 s]
Raw data (loadavg): 0.97 0.96 0.91 1/53 20025
Raw data (stat): 20025 (pb2sat-v2) R 20024 20224 20223 0 -1 0 244736 0 0 0 10472 527 0 0 25 0 1 0 969633516 701374464 155130 4294967295 134512640 135730672 3221224576 3221222828 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 171234 155130 301 301 0 170933 0
vsize: 0

Child status: 1
Real time (s): 115.319
CPU time (s): 115.311
CPU user time (s): 109.729
CPU system time (s): 5.58215
CPU usage (%): 99.9936
Max. virtual memory (Kb): 684936
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####