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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-lotfi.opb
MD5SUM69367ad5ee917e4a74e95e8f089c09d8
Bench Categoryoptimization, big integers (OPTBIGINT)
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 160
Biggest coefficient in the objective function 524288
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 8388600
Number of bits of the sum of numbers in the objective function 23
Biggest number in a constraint 5242880000000000
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 39992649862466400
Number of bits of the biggest sum of numbers56
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.85087
Number of variables6160
Total number of constraints153
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints153
Minimum length of a constraint20
Maximum length of a constraint2660

Trace number 42712 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 14:03:35 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25928 boxname=wulflinc4 idbench=1228 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  69367ad5ee917e4a74e95e8f089c09d8  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-lotfi.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-lotfi.opb
IDLAUNCH: 25928
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
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:        804708 kB
Buffers:          3472 kB
Cached:         204860 kB
SwapCached:        904 kB
Active:          27016 kB
Inactive:       183396 kB
HighTotal:      131008 kB
HighFree:        34944 kB
LowTotal:       903652 kB
LowFree:        769764 kB
SwapTotal:     2097136 kB
SwapFree:      2095236 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14000 kB
Committed_AS:    71908 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:05:20 (client local time) WITH STATUS 1 IN 105.35 SECONDS
stats: 25928 7 105.35 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
Raw data (loadavg): 0.91 0.95 0.90 2/54 27800
Raw data (stat): 27800 (runsolver) R 27799 21152 21151 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 971325417 884736 93 4294967295 134512640 135332820 3221224464 3221219632 134692420 0 0 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 93 205 205 0 11 0
vsize: 864
Current StackSize limit: 67108864 bytes
[startup+10.0003 s]
Raw data (loadavg): 0.92 0.95 0.91 2/54 27800
Raw data (stat): 27800 (pb2sat-v2) R 27799 21152 21151 0 -1 0 28813 0 0 0 932 67 0 0 25 0 1 0 971325417 87228416 17898 4294967295 134512640 135730672 3221224576 3220033080 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21296 17898 301 301 0 20995 0
vsize: 85184
[startup+20.0018 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 27800
Raw data (stat): 27800 (pb2sat-v2) R 27799 21152 21151 0 -1 0 57560 0 0 0 1873 126 0 0 25 0 1 0 971325417 173834240 35684 4294967295 134512640 135730672 3221224576 3220104352 134770140 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42440 35684 301 301 0 42139 0
vsize: 169760
[startup+30.0026 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 27800
Raw data (stat): 27800 (pb2sat-v2) R 27799 21152 21151 0 -1 0 97699 0 0 0 2799 200 0 0 25 0 1 0 971325417 295706624 53628 4294967295 134512640 135730672 3221224576 3220064480 134743085 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72194 53628 301 301 0 71893 0
vsize: 288776
[startup+40.0071 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 27800
Raw data (stat): 27800 (pb2sat-v2) R 27799 21152 21151 0 -1 0 114737 0 0 0 3765 235 0 0 25 0 1 0 971325417 345481216 70436 4294967295 134512640 135730672 3221224576 3220154868 134785951 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84346 70436 301 301 0 84045 0
vsize: 337384
[startup+50.0123 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 27800
Raw data (stat): 27800 (pb2sat-v2) R 27799 21152 21151 0 -1 0 155333 0 0 0 4695 305 0 0 25 0 1 0 971325417 550539264 110028 4294967295 134512640 135730672 3221224576 3220108720 134775356 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 134409 110028 301 301 0 134108 0
vsize: 537636
[startup+60.0122 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 27800
Raw data (stat): 27800 (pb2sat-v2) R 27799 21152 21151 0 -1 0 195752 0 0 0 5609 392 0 0 25 0 1 0 971325417 593551360 107073 4294967295 134512640 135730672 3221224576 3220033856 134743059 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 144910 107073 301 301 0 144609 0
vsize: 579640
[startup+70.0135 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 27800
Raw data (stat): 27800 (pb2sat-v2) R 27799 21152 21151 0 -1 0 207735 0 0 0 6583 418 0 0 25 0 1 0 971325417 627105792 118846 4294967295 134512640 135730672 3221224576 3220044224 134550112 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153102 118846 301 301 0 152801 0
vsize: 612408
[startup+80.0139 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 27800
Raw data (stat): 27800 (pb2sat-v2) R 27799 21152 21151 0 -1 0 227276 0 0 0 7543 458 0 0 25 0 1 0 971325417 652382208 138152 4294967295 134512640 135730672 3221224576 3220098132 135291152 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 159273 138152 301 301 0 158972 0
vsize: 637092
[startup+90.0138 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 27800
Raw data (stat): 27800 (pb2sat-v2) R 27799 21152 21151 0 -1 0 243896 0 0 0 8512 489 0 0 25 0 1 0 971325417 726233088 154581 4294967295 134512640 135730672 3221224576 3220132716 134608017 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 177303 154581 301 301 0 177002 0
vsize: 709212
[startup+100.015 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 27800
Raw data (stat): 27800 (pb2sat-v2) R 27799 21152 21151 0 -1 0 264237 0 0 0 9474 527 0 0 25 0 1 0 971325417 756207616 174688 4294967295 134512640 135730672 3221224576 3220502064 135301788 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184621 174688 301 301 0 184320 0
vsize: 738484
[startup+105.349 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 27800
Raw data (stat): 27800 (pb2sat-v2) R 27799 21152 21151 0 -1 0 264237 0 0 0 9474 527 0 0 25 0 1 0 971325417 756207616 174688 4294967295 134512640 135730672 3221224576 3220502064 135301788 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184621 174688 301 301 0 184320 0
vsize: 0

Child status: 1
Real time (s): 105.348
CPU time (s): 105.35
CPU user time (s): 99.7148
CPU system time (s): 5.63514
CPU usage (%): 100.002
Max. virtual memory (Kb): 738484
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####