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-air04.opb
MD5SUM26490113618ae9605b5ebe6370b5910b
Bench Categoryoptimization, medium integers (OPTMEDINT)
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 8904
Biggest coefficient in the objective function 2258
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 5135151
Number of bits of the sum of numbers in the objective function 23
Biggest number in a constraint 2258
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 5135151
Number of bits of the biggest sum of numbers23
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.116981
Number of variables8904
Total number of constraints9727
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)9727
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint368

Trace number 35231 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc27 THE 2005-05-28 12:31:17 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24542 boxname=wulflinc27 idbench=1014 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  26490113618ae9605b5ebe6370b5910b  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-air04.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-air04.opb
IDLAUNCH: 24542
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
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	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
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:        717724 kB
Buffers:         34112 kB
Cached:         252144 kB
SwapCached:        704 kB
Active:          22248 kB
Inactive:       266076 kB
HighTotal:      131008 kB
HighFree:        49224 kB
LowTotal:       903652 kB
LowFree:        668500 kB
SwapTotal:     2097892 kB
SwapFree:      2096316 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5128 kB
Slab:            22796 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:33:01 (client local time) WITH STATUS 1 IN 103.58 SECONDS
stats: 24542 7 103.58 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): 0.91 0.94 0.90 2/54 19622
Raw data (stat): 19622 (runsolver) R 19621 3394 3393 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864815404 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+10.0009 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 19622
Raw data (stat): 19622 (pb2sat) R 19621 3394 3393 0 -1 0 22440 0 0 0 947 52 0 0 25 0 1 0 864815404 67059712 14411 4294967295 134512640 135726644 3221224576 3217811752 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 16372 14412 300 300 0 16072 0
vsize: 65488
[startup+20.0007 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 19622
Raw data (stat): 19622 (pb2sat) R 19621 3394 3393 0 -1 0 53726 0 0 0 1884 115 0 0 25 0 1 0 864815404 158564352 31386 4294967295 134512640 135726644 3221224576 3218278800 135284810 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 38712 31386 300 300 0 38412 0
vsize: 154848
[startup+30.0018 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 19622
Raw data (stat): 19622 (pb2sat) R 19621 3394 3393 0 -1 0 80962 0 0 0 2830 169 0 0 25 0 1 0 864815404 245530624 48690 4294967295 134512640 135726644 3221224576 3218449352 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 59944 48690 300 300 0 59644 0
vsize: 239776
[startup+40.0013 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 19622
Raw data (stat): 19622 (pb2sat) R 19621 3394 3393 0 -1 0 108893 0 0 0 3770 230 0 0 25 0 1 0 864815404 348610560 64103 4294967295 134512640 135726644 3221224576 3217684012 135105696 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85110 64104 300 300 0 84810 0
vsize: 340440
[startup+50.0011 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 19622
Raw data (stat): 19622 (pb2sat) R 19621 3394 3393 0 -1 0 145075 0 0 0 4704 295 0 0 25 0 1 0 864815404 544477184 99375 4294967295 134512640 135726644 3221224576 3217712960 134771922 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 132929 99378 300 300 0 132629 0
vsize: 531716
[startup+60.0012 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 19622
Raw data (stat): 19622 (pb2sat) R 19621 3394 3393 0 -1 0 164246 0 0 0 5660 340 0 0 25 0 1 0 864815404 487636992 99602 4294967295 134512640 135726644 3221224576 3219453692 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 119052 99602 300 300 0 118752 0
vsize: 476208
[startup+70.0018 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 19622
Raw data (stat): 19622 (pb2sat) R 19621 3394 3393 0 -1 0 202224 0 0 0 6571 429 0 0 25 0 1 0 864815404 597356544 112765 4294967295 134512640 135726644 3221224576 3219946152 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145839 112765 300 300 0 145539 0
vsize: 583356
[startup+80.0026 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 19622
Raw data (stat): 19622 (pb2sat) R 19621 3394 3393 0 -1 0 219545 0 0 0 7533 468 0 0 25 0 1 0 864815404 658620416 129862 4294967295 134512640 135726644 3221224576 3219350552 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160796 129862 300 300 0 160496 0
vsize: 643184
[startup+90.0029 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 19622
Raw data (stat): 19622 (pb2sat) R 19621 3394 3393 0 -1 0 239651 0 0 0 8486 515 0 0 25 0 1 0 864815404 690655232 149707 4294967295 134512640 135726644 3221224576 3218354580 134608948 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 168617 149707 300 300 0 168317 0
vsize: 674468
[startup+100.002 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 19622
Raw data (stat): 19622 (pb2sat) R 19621 3394 3393 0 -1 0 246900 0 0 0 9459 541 0 0 25 0 1 0 864815404 392671232 95453 4294967295 134512640 135726644 3221224576 3221222764 135277538 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 95867 95453 300 300 0 95567 0
vsize: 383468
[startup+103.575 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 19622
Raw data (stat): 19622 (pb2sat) R 19621 3394 3393 0 -1 0 246900 0 0 0 9459 541 0 0 25 0 1 0 864815404 392671232 95453 4294967295 134512640 135726644 3221224576 3221222764 135277538 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 95867 95453 300 300 0 95567 0
vsize: 0

Child status: 1
Real time (s): 103.574
CPU time (s): 103.58
CPU user time (s): 97.9831
CPU system time (s): 5.59715
CPU usage (%): 100.006
Max. virtual memory (Kb): 674468
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####