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-enigma.opb
MD5SUM438e2455c0b7b4efdea6a7e48ef2555a
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 9
Biggest coefficient in the objective function 9
Number of bits for the biggest coefficient in the objective function 4
Sum of the numbers in the objective function 45
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 900207
Number of bits of the biggest number in a constraint 20
Biggest sum of numbers in a constraint 9508275
Number of bits of the biggest sum of numbers24
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.417936
Number of variables100
Total number of constraints121
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)120
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint1
Maximum length of a constraint90

Trace number 42506 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-16 09:31:17 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25725 boxname=wulflinc6 idbench=1025 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  438e2455c0b7b4efdea6a7e48ef2555a  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-enigma.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-enigma.opb
IDLAUNCH: 25725
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        695708 kB
Buffers:         33640 kB
Cached:         283028 kB
SwapCached:       1028 kB
Active:          44456 kB
Inactive:       274376 kB
HighTotal:      131008 kB
HighFree:          280 kB
LowTotal:       903652 kB
LowFree:        695428 kB
SwapTotal:     2097136 kB
SwapFree:      2095200 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5092 kB
Slab:            14496 kB
Committed_AS:    63836 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 09:33:15 (client local time) WITH STATUS 1 IN 117.39 SECONDS
stats: 25725 7 117.39 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): 0.83 0.91 0.90 2/54 17687
Raw data (stat): 17687 (runsolver) R 17686 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 969700641 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+10.0004 s]
Raw data (loadavg): 0.85 0.92 0.90 2/54 17687
Raw data (stat): 17687 (pb2sat-v2) R 17686 25568 25567 0 -1 0 28338 0 0 0 942 57 0 0 25 0 1 0 969700641 87371776 17205 4294967295 134512640 135730672 3221224576 3221198224 134551726 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21331 17205 301 301 0 21030 0
vsize: 85324
[startup+20.002 s]
Raw data (loadavg): 0.88 0.92 0.90 2/54 17687
Raw data (stat): 17687 (pb2sat-v2) R 17686 25568 25567 0 -1 0 55809 0 0 0 1886 113 0 0 25 0 1 0 969700641 172118016 33471 4294967295 134512640 135730672 3221224576 3221203748 134732201 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42021 33471 301 301 0 41720 0
vsize: 168084
[startup+30.0031 s]
Raw data (loadavg): 0.89 0.92 0.90 2/54 17687
Raw data (stat): 17687 (pb2sat-v2) R 17686 25568 25567 0 -1 0 95973 0 0 0 2808 192 0 0 25 0 1 0 969700641 298061824 51452 4294967295 134512640 135730672 3221224576 3221201976 135285418 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72769 51452 301 301 0 72468 0
vsize: 291076
[startup+40.0038 s]
Raw data (loadavg): 0.91 0.92 0.90 2/54 17687
Raw data (stat): 17687 (pb2sat-v2) R 17686 25568 25567 0 -1 0 110119 0 0 0 3781 219 0 0 25 0 1 0 969700641 341221376 65379 4294967295 134512640 135730672 3221224576 3221203640 134607985 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83306 65379 301 301 0 83005 0
vsize: 333224
[startup+50.0054 s]
Raw data (loadavg): 0.92 0.92 0.90 2/54 17687
Raw data (stat): 17687 (pb2sat-v2) R 17686 25568 25567 0 -1 0 129682 0 0 0 4741 260 0 0 25 0 1 0 969700641 370470912 84710 4294967295 134512640 135730672 3221224576 3221210124 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 90447 84710 301 301 0 90146 0
vsize: 361788
[startup+60.0066 s]
Raw data (loadavg): 0.93 0.93 0.90 2/54 17687
Raw data (stat): 17687 (pb2sat-v2) R 17686 25568 25567 0 -1 0 189913 0 0 0 5624 377 0 0 25 0 1 0 969700641 694710272 125398 4294967295 134512640 135730672 3221224576 3221208896 134788632 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 169607 125398 301 301 0 169306 0
vsize: 678428
[startup+70.0073 s]
Raw data (loadavg): 0.94 0.93 0.91 2/54 17687
Raw data (stat): 17687 (pb2sat-v2) R 17686 25568 25567 0 -1 0 196137 0 0 0 6608 394 0 0 25 0 1 0 969700641 594042880 106931 4294967295 134512640 135730672 3221224576 3221195260 135291144 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 145030 106931 301 301 0 144729 0
vsize: 580120
[startup+80.0089 s]
Raw data (loadavg): 0.95 0.93 0.91 2/54 17687
Raw data (stat): 17687 (pb2sat-v2) R 17686 25568 25567 0 -1 0 206884 0 0 0 7584 417 0 0 25 0 1 0 969700641 627597312 117484 4294967295 134512640 135730672 3221224576 3221200448 134546351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153222 117484 301 301 0 152921 0
vsize: 612888
[startup+90.01 s]
Raw data (loadavg): 0.96 0.93 0.91 2/54 17687
Raw data (stat): 17687 (pb2sat-v2) R 17686 25568 25567 0 -1 0 219298 0 0 0 8563 439 0 0 25 0 1 0 969700641 627597312 129670 4294967295 134512640 135730672 3221224576 3221204160 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153222 129670 301 301 0 152921 0
vsize: 612888
[startup+100.011 s]
Raw data (loadavg): 0.96 0.93 0.91 2/54 17687
Raw data (stat): 17687 (pb2sat-v2) R 17686 25568 25567 0 -1 0 231686 0 0 0 9540 462 0 0 25 0 1 0 969700641 627597312 141829 4294967295 134512640 135730672 3221224576 3221207760 134770154 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153222 141829 301 301 0 152921 0
vsize: 612888
[startup+110.012 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 17687
Raw data (stat): 17687 (pb2sat-v2) R 17686 25568 25567 0 -1 0 244667 0 0 0 10514 489 0 0 25 0 1 0 969700641 690974720 154627 4294967295 134512640 135730672 3221224576 3221207576 135284239 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 168695 154627 301 301 0 168394 0
vsize: 674780
[startup+117.368 s]
Raw data (loadavg): 0.97 0.94 0.91 1/53 17687
Raw data (stat): 17687 (pb2sat-v2) R 17686 25568 25567 0 -1 0 244667 0 0 0 10514 489 0 0 25 0 1 0 969700641 690974720 154627 4294967295 134512640 135730672 3221224576 3221207576 135284239 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 168695 154627 301 301 0 168394 0
vsize: 0

Child status: 1
Real time (s): 117.367
CPU time (s): 117.39
CPU user time (s): 112.173
CPU system time (s): 5.21721
CPU usage (%): 100.019
Max. virtual memory (Kb): 678428
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####