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/miplib2003/normalized-mps-v2-13-7-air04.opb
MD5SUMee388359e66788d310d5d5b34d6465c1
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 63236
Optimality of the best value was proved NO
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 benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1176.04
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 35569 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc26 THE 2005-05-28 13:24:52 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24869 boxname=wulflinc26 idbench=1341 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  ee388359e66788d310d5d5b34d6465c1  /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-13-7-air04.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-13-7-air04.opb
IDLAUNCH: 24869
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.061
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		: 451.061
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        802252 kB
Buffers:          3796 kB
Cached:         205708 kB
SwapCached:        684 kB
Active:          20080 kB
Inactive:       191500 kB
HighTotal:      131008 kB
HighFree:        24444 kB
LowTotal:       903652 kB
LowFree:        777808 kB
SwapTotal:     2097892 kB
SwapFree:      2096256 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5088 kB
Slab:            15248 kB
Committed_AS:    63736 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:26:35 (client local time) WITH STATUS 1 IN 102.952 SECONDS
stats: 24869 7 102.952 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): 0.86 0.95 0.91 2/54 2881
Raw data (stat): 2881 (runsolver) R 2880 20687 20686 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865149310 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+9.99999 s]
Raw data (loadavg): 0.88 0.95 0.91 2/54 2881
Raw data (stat): 2881 (pb2sat) R 2880 20687 20686 0 -1 0 26091 0 0 0 940 59 0 0 25 0 1 0 865149310 80453632 14981 4294967295 134512640 135726644 3221224576 3218700592 134784762 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 19642 14981 300 300 0 19342 0
vsize: 78568
[startup+20.0001 s]
Raw data (loadavg): 0.90 0.95 0.91 2/54 2881
Raw data (stat): 2881 (pb2sat) R 2880 20687 20686 0 -1 0 54584 0 0 0 1878 120 0 0 25 0 1 0 865149310 176693248 32232 4294967295 134512640 135726644 3221224576 3219012000 134780450 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43138 32232 300 300 0 42838 0
vsize: 172552
[startup+30.0001 s]
Raw data (loadavg): 0.91 0.95 0.91 2/54 2881
Raw data (stat): 2881 (pb2sat) R 2880 20687 20686 0 -1 0 81748 0 0 0 2823 176 0 0 25 0 1 0 865149310 245530624 49459 4294967295 134512640 135726644 3221224576 3218778064 134767231 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 59944 49459 300 300 0 59644 0
vsize: 239776
[startup+40.0005 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 2881
Raw data (stat): 2881 (pb2sat) R 2880 20687 20686 0 -1 0 110096 0 0 0 3761 238 0 0 25 0 1 0 865149310 350367744 65290 4294967295 134512640 135726644 3221224576 3218059792 134784502 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85539 65290 300 300 0 85239 0
vsize: 342156
[startup+50.0081 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 2881
Raw data (stat): 2881 (pb2sat) R 2880 20687 20686 0 -1 0 150927 0 0 0 4691 309 0 0 25 0 1 0 865149310 552181760 105005 4294967295 134512640 135726644 3221224576 3217712760 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 134810 105007 300 300 0 134510 0
vsize: 539240
[startup+60.0078 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 2881
Raw data (stat): 2881 (pb2sat) R 2880 20687 20686 0 -1 0 165054 0 0 0 5657 343 0 0 25 0 1 0 865149310 487636992 100392 4294967295 134512640 135726644 3221224576 3219594892 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 119052 100392 300 300 0 118752 0
vsize: 476208
[startup+70.0086 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 2881
Raw data (stat): 2881 (pb2sat) R 2880 20687 20686 0 -1 0 203505 0 0 0 6573 427 0 0 25 0 1 0 865149310 599384064 114028 4294967295 134512640 135726644 3221224576 3219132536 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 146334 114028 300 300 0 146034 0
vsize: 585336
[startup+80.0082 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 2881
Raw data (stat): 2881 (pb2sat) R 2880 20687 20686 0 -1 0 220824 0 0 0 7533 468 0 0 25 0 1 0 865149310 660647936 131123 4294967295 134512640 135726644 3221224576 3219274896 134557507 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 161291 131123 300 300 0 160991 0
vsize: 645164
[startup+90.0079 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 2881
Raw data (stat): 2881 (pb2sat) R 2880 20687 20686 0 -1 0 240922 0 0 0 8488 512 0 0 25 0 1 0 865149310 692547584 150961 4294967295 134512640 135726644 3221224576 3219047680 134782675 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 169079 150962 300 300 0 168779 0
vsize: 676316
[startup+100.008 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 2881
Raw data (stat): 2881 (pb2sat) R 2880 20687 20686 0 -1 0 246854 0 0 0 9466 535 0 0 25 0 1 0 865149310 392536064 95406 4294967295 134512640 135726644 3221224576 3221222764 135277538 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 95834 95406 300 300 0 95534 0
vsize: 383336
[startup+102.946 s]
Raw data (loadavg): 0.97 0.96 0.91 1/53 2881
Raw data (stat): 2881 (pb2sat) R 2880 20687 20686 0 -1 0 246854 0 0 0 9466 535 0 0 25 0 1 0 865149310 392536064 95406 4294967295 134512640 135726644 3221224576 3221222764 135277538 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 95834 95406 300 300 0 95534 0
vsize: 0

Child status: 1
Real time (s): 102.946
CPU time (s): 102.952
CPU user time (s): 97.4062
CPU system time (s): 5.54616
CPU usage (%): 100.006
Max. virtual memory (Kb): 676316
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####