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-v2-13-7/MIPLIB/miplib/normalized-mps-v2-13-7-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 42767 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 14:28:06 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25982 boxname=wulflinc1 idbench=1282 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a48e4d8c244906df694603c81ee602a6  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-air05.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-air05.opb
IDLAUNCH: 25982
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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	: 2
cpu MHz		: 451.053
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:        718556 kB
Buffers:         19516 kB
Cached:         272068 kB
SwapCached:       1156 kB
Active:          27152 kB
Inactive:       266652 kB
HighTotal:      131008 kB
HighFree:         3080 kB
LowTotal:       903652 kB
LowFree:        715476 kB
SwapTotal:     2097136 kB
SwapFree:      2094896 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            16488 kB
Committed_AS:    92720 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:30:03 (client local time) WITH STATUS 1 IN 116.732 SECONDS
stats: 25982 7 116.732 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): 0.91 0.94 0.90 2/55 21520
Raw data (stat): 21520 (runsolver) R 21519 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 914625525 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+10.0002 s]
Raw data (loadavg): 0.93 0.94 0.91 2/55 21520
Raw data (stat): 21520 (pb2sat-v2) R 21519 8378 8377 0 -1 0 13662 0 0 0 968 30 0 0 25 0 1 0 914625525 42070016 7955 4294967295 134512640 135730672 3221224576 3221222896 134732711 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10271 7955 301 301 0 9970 0
vsize: 41084
[startup+20.001 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 21520
Raw data (stat): 21520 (pb2sat-v2) R 21519 8378 8377 0 -1 0 26353 0 0 0 1939 60 0 0 25 0 1 0 914625525 86753280 15184 4294967295 134512640 135730672 3221224576 3217929840 134549701 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21180 15184 301 301 0 20879 0
vsize: 84720
[startup+30.0018 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 21520
Raw data (stat): 21520 (pb2sat-v2) R 21519 8378 8377 0 -1 0 54051 0 0 0 2878 121 0 0 25 0 1 0 914625525 173043712 31653 4294967295 134512640 135730672 3221224576 3220645128 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42247 31653 301 301 0 41946 0
vsize: 168988
[startup+40.0015 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 21520
Raw data (stat): 21520 (pb2sat-v2) R 21519 8378 8377 0 -1 0 80913 0 0 0 3823 176 0 0 25 0 1 0 914625525 245198848 49098 4294967295 134512640 135730672 3221224576 3219534312 135284277 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 59863 49098 301 301 0 59562 0
vsize: 239452
[startup+50.0013 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 21520
Raw data (stat): 21520 (pb2sat-v2) R 21519 8378 8377 0 -1 0 107358 0 0 0 4765 234 0 0 25 0 1 0 914625525 343953408 63031 4294967295 134512640 135730672 3221224576 3220646276 135291157 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83973 63031 301 301 0 83672 0
vsize: 335892
[startup+60.0015 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 21520
Raw data (stat): 21520 (pb2sat-v2) R 21519 8378 8377 0 -1 0 146889 0 0 0 5685 315 0 0 25 0 1 0 914625525 545226752 101470 4294967295 134512640 135730672 3221224576 3219980224 134775543 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 133112 101470 301 301 0 132811 0
vsize: 532448
[startup+70.0019 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 21520
Raw data (stat): 21520 (pb2sat-v2) R 21519 8378 8377 0 -1 0 159663 0 0 0 6655 345 0 0 25 0 1 0 914625525 482168832 95506 4294967295 134512640 135730672 3221224576 3220739660 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 117717 95506 301 301 0 117416 0
vsize: 470868
[startup+80.0027 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 21520
Raw data (stat): 21520 (pb2sat-v2) R 21519 8378 8377 0 -1 0 196078 0 0 0 7575 425 0 0 25 0 1 0 914625525 588779520 107123 4294967295 134512640 135730672 3221224576 3218963968 134546503 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 143745 107123 301 301 0 143444 0
vsize: 574980
[startup+90.0025 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 21520
Raw data (stat): 21520 (pb2sat-v2) R 21519 8378 8377 0 -1 0 212138 0 0 0 8541 460 0 0 25 0 1 0 914625525 647475200 122972 4294967295 134512640 135730672 3221224576 3219042848 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 158075 122972 301 301 0 157774 0
vsize: 632300
[startup+100.002 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 21520
Raw data (stat): 21520 (pb2sat-v2) R 21519 8378 8377 0 -1 0 230822 0 0 0 9499 501 0 0 25 0 1 0 914625525 676671488 141414 4294967295 134512640 135730672 3221224576 3220656736 134608047 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 165203 141414 301 301 0 164902 0
vsize: 660812
[startup+110.003 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 21520
Raw data (stat): 21520 (pb2sat-v2) R 21519 8378 8377 0 -1 0 244736 0 0 0 10469 532 0 0 25 0 1 0 914625525 701374464 155130 4294967295 134512640 135730672 3221224576 3221223004 135284036 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 171234 155130 301 301 0 170933 0
vsize: 684936
[startup+116.726 s]
Raw data (loadavg): 0.98 0.95 0.91 1/54 21520
Raw data (stat): 21520 (pb2sat-v2) R 21519 8378 8377 0 -1 0 244736 0 0 0 10469 532 0 0 25 0 1 0 914625525 701374464 155130 4294967295 134512640 135730672 3221224576 3221223004 135284036 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): 116.726
CPU time (s): 116.732
CPU user time (s): 111.1
CPU system time (s): 5.63214
CPU usage (%): 100.005
Max. virtual memory (Kb): 684936
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####