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 42380 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 06:15:30 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25598 boxname=wulflinc3 idbench=898 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a48e4d8c244906df694603c81ee602a6  /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: 25598
/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:        728180 kB
Buffers:         23436 kB
Cached:         260936 kB
SwapCached:        820 kB
Active:          30580 kB
Inactive:       255872 kB
HighTotal:      131008 kB
HighFree:         4256 kB
LowTotal:       903652 kB
LowFree:        723924 kB
SwapTotal:     2097136 kB
SwapFree:      2095340 kB
Dirty:              52 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14240 kB
Committed_AS:    71896 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 06:17:25 (client local time) WITH STATUS 1 IN 115.155 SECONDS
stats: 25598 7 115.155 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): 0.97 0.94 0.91 2/54 18188
Raw data (stat): 18188 (runsolver) R 18187 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968517598 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+10.0002 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 18188
Raw data (stat): 18188 (pb2sat-v2) R 18187 20224 20223 0 -1 0 13677 0 0 0 966 33 0 0 25 0 1 0 968517598 42070016 7970 4294967295 134512640 135730672 3221224576 3221223072 134747543 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 10271 7970 301 301 0 9970 0
vsize: 41084
[startup+20.0011 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 18188
Raw data (stat): 18188 (pb2sat-v2) R 18187 20224 20223 0 -1 0 26771 0 0 0 1936 62 0 0 25 0 1 0 968517598 87293952 15597 4294967295 134512640 135730672 3221224576 3218775848 135109377 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21312 15597 301 301 0 21011 0
vsize: 85248
[startup+30.0024 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 18188
Raw data (stat): 18188 (pb2sat-v2) R 18187 20224 20223 0 -1 0 54700 0 0 0 2878 121 0 0 25 0 1 0 968517598 173989888 32292 4294967295 134512640 135730672 3221224576 3219875264 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42478 32292 301 301 0 42177 0
vsize: 169912
[startup+40.0018 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 18188
Raw data (stat): 18188 (pb2sat-v2) R 18187 20224 20223 0 -1 0 81559 0 0 0 3823 176 0 0 25 0 1 0 968517598 245198848 49730 4294967295 134512640 135730672 3221224576 3219790816 134546378 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 59863 49730 301 301 0 59562 0
vsize: 239452
[startup+50.0027 s]
Raw data (loadavg): 0.99 0.95 0.91 2/54 18188
Raw data (stat): 18188 (pb2sat-v2) R 18187 20224 20223 0 -1 0 108596 0 0 0 4765 233 0 0 25 0 1 0 968517598 345845760 64252 4294967295 134512640 135730672 3221224576 3218995484 135301642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84435 64252 301 301 0 84134 0
vsize: 337740
[startup+60.003 s]
Raw data (loadavg): 0.99 0.95 0.91 2/54 18188
Raw data (stat): 18188 (pb2sat-v2) R 18187 20224 20223 0 -1 0 150079 0 0 0 5691 308 0 0 25 0 1 0 968517598 549281792 104537 4294967295 134512640 135730672 3221224576 3219980224 134776110 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 134102 104537 301 301 0 133801 0
vsize: 536408
[startup+70.0064 s]
Raw data (loadavg): 0.99 0.95 0.91 2/54 18188
Raw data (stat): 18188 (pb2sat-v2) R 18187 20224 20223 0 -1 0 160768 0 0 0 6664 335 0 0 25 0 1 0 968517598 482168832 96586 4294967295 134512640 135730672 3221224576 3218833120 134546477 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 117717 96586 301 301 0 117416 0
vsize: 470868
[startup+80.0072 s]
Raw data (loadavg): 0.99 0.95 0.91 2/54 18188
Raw data (stat): 18188 (pb2sat-v2) R 18187 20224 20223 0 -1 0 198114 0 0 0 7584 415 0 0 25 0 1 0 968517598 591888384 109132 4294967295 134512640 135730672 3221224576 3219761172 134612538 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 144504 109132 301 301 0 144203 0
vsize: 578016
[startup+90.0077 s]
Raw data (loadavg): 0.99 0.95 0.91 2/54 18188
Raw data (stat): 18188 (pb2sat-v2) R 18187 20224 20223 0 -1 0 214475 0 0 0 8550 449 0 0 25 0 1 0 968517598 651259904 125279 4294967295 134512640 135730672 3221224576 3218320708 134785951 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 158999 125279 301 301 0 158698 0
vsize: 635996
[startup+100.008 s]
Raw data (loadavg): 0.99 0.95 0.91 2/54 18188
Raw data (stat): 18188 (pb2sat-v2) R 18187 20224 20223 0 -1 0 233408 0 0 0 9505 494 0 0 25 0 1 0 968517598 680726528 143966 4294967295 134512640 135730672 3221224576 3219357808 134770122 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 166193 143966 301 301 0 165892 0
vsize: 664772
[startup+110.009 s]
Raw data (loadavg): 0.99 0.95 0.91 2/54 18188
Raw data (stat): 18188 (pb2sat-v2) R 18187 20224 20223 0 -1 0 244736 0 0 0 10480 519 0 0 25 0 1 0 968517598 701374464 155130 4294967295 134512640 135730672 3221224576 3221222828 135281181 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171234 155130 301 301 0 170933 0
vsize: 684936
[startup+115.164 s]
Raw data (loadavg): 0.99 0.95 0.91 1/53 18188
Raw data (stat): 18188 (pb2sat-v2) R 18187 20224 20223 0 -1 0 244736 0 0 0 10480 519 0 0 25 0 1 0 968517598 701374464 155130 4294967295 134512640 135730672 3221224576 3221222828 135281181 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171234 155130 301 301 0 170933 0
vsize: 0

Child status: 1
Real time (s): 115.163
CPU time (s): 115.155
CPU user time (s): 109.648
CPU system time (s): 5.50716
CPU usage (%): 99.9934
Max. virtual memory (Kb): 684936
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####