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/miplib2003/normalized-mps-v2-20-10-cap6000.opb
MD5SUMf72618c4c62a4e83b66d53971e0bdc53
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -285037
Optimality of the best value was proved NO
Number of terms in the objective function 5995
Biggest coefficient in the objective function 91110
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 12969603
Number of bits of the sum of numbers in the objective function 24
Biggest number in a constraint 800000
Number of bits of the biggest number in a constraint 20
Biggest sum of numbers in a constraint 28761906
Number of bits of the biggest sum of numbers25
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.16
Number of variables6000
Total number of constraints8176
Number of constraints which are clauses222
Number of constraints which are cardinality constraints (but not clauses)7919
Number of constraints which are nor clauses,nor cardinality constraints35
Minimum length of a constraint1
Maximum length of a constraint6000

Trace number 42441 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-16 07:47:53 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25661 boxname=wulflinc2 idbench=961 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f72618c4c62a4e83b66d53971e0bdc53  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-cap6000.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-cap6000.opb
IDLAUNCH: 25661
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        702108 kB
Buffers:         34992 kB
Cached:         271864 kB
SwapCached:       4448 kB
Active:          62440 kB
Inactive:       249536 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        701856 kB
SwapTotal:     2097136 kB
SwapFree:      2091696 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            14948 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 07:49:37 (client local time) WITH STATUS 1 IN 104.273 SECONDS
stats: 25661 7 104.273 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): 0.90 0.95 0.91 2/54 7327
Raw data (stat): 7327 (runsolver) R 7326 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 969085054 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+10.0006 s]
Raw data (loadavg): 0.92 0.95 0.91 2/54 7327
Raw data (stat): 7327 (pb2sat-v2) R 7326 31399 31398 0 -1 0 25782 0 0 0 939 59 0 0 25 0 1 0 969085054 79216640 14682 4294967295 134512640 135730672 3221224576 3218507712 135284082 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 19340 14683 301 301 0 19039 0
vsize: 77360
[startup+20.0006 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 7327
Raw data (stat): 7327 (pb2sat-v2) R 7326 31399 31398 0 -1 0 54163 0 0 0 1882 116 0 0 25 0 1 0 969085054 174645248 31835 4294967295 134512640 135730672 3221224576 3218805368 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42638 31835 301 301 0 42337 0
vsize: 170552
[startup+30.001 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 7327
Raw data (stat): 7327 (pb2sat-v2) R 7326 31399 31398 0 -1 0 82913 0 0 0 2822 177 0 0 25 0 1 0 969085054 247132160 50651 4294967295 134512640 135730672 3221224576 3220021424 134770200 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 60335 50652 301 301 0 60034 0
vsize: 241340
[startup+40.0007 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 7327
Raw data (stat): 7327 (pb2sat-v2) R 7326 31399 31398 0 -1 0 110999 0 0 0 3757 241 0 0 25 0 1 0 969085054 348590080 66223 4294967295 134512640 135730672 3221224576 3219850624 134786908 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85105 66223 301 301 0 84804 0
vsize: 340420
[startup+50.0007 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 7327
Raw data (stat): 7327 (pb2sat-v2) R 7326 31399 31398 0 -1 0 152942 0 0 0 4676 323 0 0 25 0 1 0 969085054 553783296 107049 4294967295 134512640 135730672 3221224576 3219234112 134775362 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 135201 107051 301 301 0 134900 0
vsize: 540804
[startup+60.0011 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 7327
Raw data (stat): 7327 (pb2sat-v2) R 7326 31399 31398 0 -1 0 169653 0 0 0 5636 364 0 0 25 0 1 0 969085054 691515392 105024 4294967295 134512640 135730672 3221224576 3218635584 134788521 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 168827 105029 301 301 0 168526 0
vsize: 675308
[startup+70.0008 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 7327
Raw data (stat): 7327 (pb2sat-v2) R 7326 31399 31398 0 -1 0 203432 0 0 0 6560 440 0 0 25 0 1 0 969085054 630214656 114017 4294967295 134512640 135730672 3221224576 3218929040 134784071 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153861 114017 301 301 0 153560 0
vsize: 615444
[startup+80.0018 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 7327
Raw data (stat): 7327 (pb2sat-v2) R 7326 31399 31398 0 -1 0 223735 0 0 0 7514 485 0 0 25 0 1 0 969085054 661843968 134081 4294967295 134512640 135730672 3221224576 3218898160 134608778 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161583 134081 301 301 0 161282 0
vsize: 646332
[startup+90.0012 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 7327
Raw data (stat): 7327 (pb2sat-v2) R 7326 31399 31398 0 -1 0 245072 0 0 0 8468 532 0 0 25 0 1 0 969085054 694554624 155161 4294967295 134512640 135730672 3221224576 3219364816 134786278 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 169569 155163 301 301 0 169268 0
vsize: 678276
[startup+100.002 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 7327
Raw data (stat): 7327 (pb2sat-v2) R 7326 31399 31398 0 -1 0 255189 0 0 0 9429 571 0 0 25 0 1 0 969085054 400216064 97293 4294967295 134512640 135730672 3221224576 3221222764 135281170 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97709 97293 301 301 0 97408 0
vsize: 390836
[startup+104.286 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 7327
Raw data (stat): 7327 (pb2sat-v2) R 7326 31399 31398 0 -1 0 255189 0 0 0 9429 571 0 0 25 0 1 0 969085054 400216064 97293 4294967295 134512640 135730672 3221224576 3221222764 135281170 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97709 97293 301 301 0 97408 0
vsize: 0

Child status: 1
Real time (s): 104.286
CPU time (s): 104.273
CPU user time (s): 98.357
CPU system time (s): 5.9161
CPU usage (%): 99.9876
Max. virtual memory (Kb): 678276
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####