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/miplib3/normalized-mps-v2-13-7-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 benchmark0.120981
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 35614 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc11 THE 2005-05-28 13:33:16 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24926 boxname=wulflinc11 idbench=1398 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  26490113618ae9605b5ebe6370b5910b  /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-13-7-air04.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-13-7-air04.opb
IDLAUNCH: 24926
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.028
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		: 451.028
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:        958756 kB
Buffers:         12956 kB
Cached:          40996 kB
SwapCached:        788 kB
Active:          21824 kB
Inactive:        34228 kB
HighTotal:      131008 kB
HighFree:        86548 kB
LowTotal:       903652 kB
LowFree:        872208 kB
SwapTotal:     2097136 kB
SwapFree:      2095404 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5072 kB
Slab:            14080 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:34:59 (client local time) WITH STATUS 1 IN 102.594 SECONDS
stats: 24926 7 102.594 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): 0.93 1.00 0.95 2/54 3944
Raw data (stat): 3944 (runsolver) R 3943 25830 25829 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806967619 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+10.0008 s]
Raw data (loadavg): 0.94 1.00 0.95 2/54 3944
Raw data (stat): 3944 (pb2sat) R 3943 25830 25829 0 -1 0 23514 0 0 0 942 56 0 0 25 0 1 0 806967619 92364800 15485 4294967295 134512640 135726644 3221224576 3219394592 134784885 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22550 15485 300 300 0 22250 0
vsize: 90200
[startup+20.002 s]
Raw data (loadavg): 0.95 1.00 0.95 2/54 3944
Raw data (stat): 3944 (pb2sat) R 3943 25830 25829 0 -1 0 53961 0 0 0 1877 122 0 0 25 0 1 0 806967619 158969856 31618 4294967295 134512640 135726644 3221224576 3218952996 135278564 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 38811 31618 300 300 0 38511 0
vsize: 155244
[startup+30.0023 s]
Raw data (loadavg): 0.95 1.00 0.95 2/54 3944
Raw data (stat): 3944 (pb2sat) R 3943 25830 25829 0 -1 0 81162 0 0 0 2819 180 0 0 25 0 1 0 806967619 245530624 48885 4294967295 134512640 135726644 3221224576 3217883004 134634291 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 59944 48885 300 300 0 59644 0
vsize: 239776
[startup+40.0032 s]
Raw data (loadavg): 0.96 1.00 0.95 2/54 3944
Raw data (stat): 3944 (pb2sat) R 3943 25830 25829 0 -1 0 109437 0 0 0 3757 242 0 0 25 0 1 0 806967619 349421568 64640 4294967295 134512640 135726644 3221224576 3217873984 134782184 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85308 64640 300 300 0 85008 0
vsize: 341232
[startup+50.0043 s]
Raw data (loadavg): 0.97 1.00 0.95 2/54 3944
Raw data (stat): 3944 (pb2sat) R 3943 25830 25829 0 -1 0 149101 0 0 0 4684 315 0 0 25 0 1 0 806967619 549748736 103249 4294967295 134512640 135726644 3221224576 3217712760 135280844 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 134216 103249 300 300 0 133916 0
vsize: 536864
[startup+60.0052 s]
Raw data (loadavg): 0.97 1.00 0.95 2/54 3944
Raw data (stat): 3944 (pb2sat) R 3943 25830 25829 0 -1 0 164948 0 0 0 5647 352 0 0 25 0 1 0 806967619 487636992 100289 4294967295 134512640 135726644 3221224576 3219443792 134784502 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 119052 100289 300 300 0 118752 0
vsize: 476208
[startup+70.0055 s]
Raw data (loadavg): 0.98 1.00 0.95 2/54 3944
Raw data (stat): 3944 (pb2sat) R 3943 25830 25829 0 -1 0 203566 0 0 0 6564 435 0 0 25 0 1 0 806967619 599519232 114089 4294967295 134512640 135726644 3221224576 3218736828 135298005 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 146367 114089 300 300 0 146067 0
vsize: 585468
[startup+80.0057 s]
Raw data (loadavg): 0.98 1.00 0.95 2/54 3944
Raw data (stat): 3944 (pb2sat) R 3943 25830 25829 0 -1 0 221133 0 0 0 7528 471 0 0 25 0 1 0 806967619 661188608 131429 4294967295 134512640 135726644 3221224576 3218956092 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 161423 131429 300 300 0 161123 0
vsize: 645692
[startup+90.0061 s]
Raw data (loadavg): 0.98 1.00 0.95 2/54 3944
Raw data (stat): 3944 (pb2sat) R 3943 25830 25829 0 -1 0 241504 0 0 0 8487 512 0 0 25 0 1 0 806967619 693628928 151536 4294967295 134512640 135726644 3221224576 3218249032 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 169343 151536 300 300 0 169043 0
vsize: 677372
[startup+100.006 s]
Raw data (loadavg): 0.98 1.00 0.95 2/54 3944
Raw data (stat): 3944 (pb2sat) R 3943 25830 25829 0 -1 0 246900 0 0 0 9464 535 0 0 25 0 1 0 806967619 392671232 95453 4294967295 134512640 135726644 3221224576 3221222764 135277617 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 95867 95453 300 300 0 95567 0
vsize: 383468
[startup+102.601 s]
Raw data (loadavg): 0.98 1.00 0.95 1/53 3944
Raw data (stat): 3944 (pb2sat) R 3943 25830 25829 0 -1 0 246900 0 0 0 9464 535 0 0 25 0 1 0 806967619 392671232 95453 4294967295 134512640 135726644 3221224576 3221222764 135277617 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): 102.6
CPU time (s): 102.594
CPU user time (s): 97.0472
CPU system time (s): 5.54716
CPU usage (%): 99.9945
Max. virtual memory (Kb): 677372
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####